BP Axialkolbenpumpen EnGB Screen

Axial Piston Pumps and Motors by LiebherrVersatile and Durable

Axial Piston Pumps and Motors by Liebherr2

Hydraulic pump DPVO165 (rear left) and DPVG165 (rear right) and also hydraulic motor CMVE165

Liebherr has been manufacturing hydraulic components at the Bulle site in Switzerland for more than 30 years. Essen-tially, these include axial piston pumps and motors in swash plate design. However, a range of pilot control devices and valves are also produced. Development and production of the components is supported by decades of experience and state-of-the-art tech-nologies. The use of high strength materials and a durable design for high-pressure applications make the Liebherr hydraulic components suitable for the high quality expectations in cranes, construction machines, mining equipment, maritime use and other applications. They are also distinguished by a long service life, optimised efficiency and low noise emissions during operation. In order to meet the requirements of every customer optimally, the components can be put together flexibly and indi-vidually thanks to modular systems. Furthermore, the product range offers various application-specific developments.

High-grade hydraulic components by Liebherr

Axial Piston Pumps and Motors by Liebherr 3

Manufacturing know-how

Page 4

Maximum flexibility and modularity

Page 6

Long service life Page 8

Low noise emissions Page 10

Optimised efficiency

Page 12

Application-specific developments

Page 14

Product range hydraulic pumps

Page 16

Product range hydraulic motors

Page 26

Pilot control devices and hydraulic valves

Page 42

Examples of use Page 44


Decades of experience

The first hydraulic products came off the production line back in 1983. To this day, they have been consistently further devel-oped and modernised.


Manufacturing know-how

Assembly

Specially constructed mounting equipment enables fast, effective work under ergonomic conditions.

Liebherr has always attached great importance to a high level of vertical integra-tion in the group of companies. This also applies to the components division. As such, many parts that are decisive for the quality and performance are produced for the axial piston units inhouse at the Bulle site in Switzerland. To ensure a con-sistently high level of quality and reliability of the high precision hydraulic com-ponents, Liebherr constantly improves all production processes and continually invests in the most advanced manufacturing facilities.

Manufacturing depth

The inhouse production of quality-relevant parts makes qualitatively high-grade products possible. For example, the drive shafts and cylinders of the axial piston units are made on Liebherr's own tooth cutting machines.

State-of-the-art facilities

State of the art production facilities allow for a high standard of precision and consistency of the finished workpieces and facilitate economical manufacture of small and large batch sizes. In addition, they enable short reaction times when customer requirements change.

Production

Mastering critical production processes is decisive for the quality and long service life of a component. Therefore, Liebherr machines the cast housings and connecting plates completely inhouse.


Modular system of through-drives

For the through-drive option of up to 100% output, a wide range of flanges and adapters are available with varying diameters.


Maximum flexibility and modularity

Modular controller system

All of the different rated units can be equipped as an option with a variety of controllers, such as electric-proportional, diesel speed-dependent controllers or torque controllers.

The axial piston units from Liebherr have a swash plate design and are available in a wide range of variants. The product portfolio comprises pumps and motors both for open as well as closed hydraulic circuits. Moreover, Liebherr offers not only adjustable hydraulic pumps and motors but also fixed ones. The pumps can be designed as single, double or parallel pumps, the motors as single or double motors.A modular system of controllers, through-drives and mounting flanges means that hydraulic pumps and motors from Liebherr are particularly flexible and ver-satile. As such, the optimal solution can be found for every drive application.

Modular controller system

All of the different rated units can be equipped as an op-tion with varying controllers, such as electric-proportion-al, with pressure cut-off, diesel speed-dependent con-trollers or torque controllers. Safety valves with a seat valve design can cut-off the control pressure and, in this way, bring the axial piston unit into a neutral position again.

Standardised mounting flanges

The various mounting flanges in standard sizes that com-ply with SAE and ISO simplify integration of the compo-nents in the end unit. Furthermore, they enable a flexible combination of hydraulic pumps and splitter boxes or hydraulic motors and gearboxes.

Modular through-drive system

The modular system of through-drives is facilitated by a common drive design, standard flanges and coupling sleeves. In this way, a hydraulic pump can be connected easily to other units with maximum equivalent nominal size.


Analyses with FEM

Using the finite element method (FEM), ideal rigidity, optimal distribution of stress, ideal material distribution and improved geometry can be achieved. Analyses with FEM are carried out on the cylinders, for example.


3D measuring devices

The measurement of individual parts and assembled components is carried out using modern, computer-assisted test equipment.

Long service lifeThe foundation for the quality and performance of Liebherr hydraulic compo-nents is laid already during product development. The combination of proven design features and innovative ideas leads to products with a long service life.

Systematic simulation

The use of modern CAD software and FEM analysis for the simulation leads to components that are designed optimally. To verify and improve the computing models employed, new products are also examined in the labo-ratory and subjected to various test routines. An example of this are the high pressure endurance trials. Parts that need to withstand arduous operating conditions, such as pistons, piston-slipper assemblies and other drive sys-tem elements, are examined particularly intensively and optimised to maximise the service life of the different components overall.

Precision and accuracy

A close working relationship between the departments, such as development, work preparation, production and quality assurance guarantees high precision compo-nents that are made consistently to the same high stand-ards. Modern production facilities that can be used to produce highly complex parts only in just a few clamping operations also contribute to a high standard of quality.

Quality assurance

Modern quality assurance measures and state-of-the-art measuring equipment ensure early detection of faults during the whole production and assembly process, thereby keeping failure rates low. Without exception, every axial piston unit is subjected to a functional test before delivery during which, among other things, the torque and efficiency are checked. Only absolutely flaw-less components leave the factory.

Highest quality standards

The quality assurance procedure at the Bulle site is cer-tified according to DIN EN ISO 9001/2008 and is per-formed as per VDA standards (reliability control system).

Engineering

Using up-to-date CAD programs, the hydraulic components are developed, tested virtually in simulation programs and then prepared for series production.


Optimal construction

Special ribs on the inside of the hydraulic housings lower the directly emitted airborne noise, thereby reducing noise emissions considerably.


Low noise emissions

Acoustic intensity measurement

The comprehensive acoustic intensity measurements enable the precise localisation of noise. Opti-misation measures are simplified by pinpointing the source of noise.

Pressure pipeTest bench flange

SAE flange

Pump housing Suction pipe

During development and construction of the axial piston pumps and motors, Liebherr places specific importance not only on performance, efficiency and lon-gevity but also on the optimisation of noise emissions in particular. The aim is to minimise the sound generated by pressure pulsations as far as possible and to minimize the emitted airborne noise from the housing. To achieve this, Liebherr relies on the knowledge gained through research and measurements and trials on its own acoustic test bench.

Optimal design Noise emissions are reduced considerably by the sturdy, enclosed housings with integrated swivel joke bearing as well as the reinforced SAE connecting flanges. Special ribs on the inside of the housing walls also ensure that the hydraulic components run more smoothly and with less noise. In addition, the ribs result in a significantly lower weight and higher stiffness.

Good vibration characteristics

With the finite element method (FEM), load distribution within the components can be determined and areas that are subjected to particularly high loads can be identified. It is also possible to calculate the vibration characteris-tics of a pump or a motor and to optimise the shape and structure of the housing using the results. The increased stiffness of the housing has a positive effect on the noise behaviour. Vibrations are minimised and material fatigue is kept as low as possible.

Acoustic test bench

Noise measurements are performed in a sound-insulated chamber. The high quality measuring technology makes it possible to record component vibrations in various types of media (air-borne, water-borne, structure-borne noise) and highlights opti-misation potential.

0° 1° 2° 4° 6° 8° 10° 12° 14,5° 16° 18° 20° 22°

0

20

40

60

80

100


Large swash plate angle

The change in swash angle from 14.5 on model series A to 22 degrees on model series D enables a higher conversion range and a greater degree of efficiency.

Axial piston motor Overall efficiency of an axial piston pump

Pre

ssur

e ∆

p in

bar

Swash plate angle in %Swash plate angle

Conversion = 2.5

Conversion = 2.5

78%

65%

Efficiency curve

Effi

cien

cy (%

)

0

0

450

100


Optimised efficiency

CFD simulation

With the aid of flow simulations, pressure losses are minimised and flow configuration in the axial piston units is optimised.

For the latest generation of axial piston units (model series D), Liebherr offers a swash plate angle increase from 14.5 degrees to 22 degrees compared with the first generation (model series A). On one hand, a higher swash plate angle increases the conversion range of the motors, which is advantageous on mobile vehicles, for example, and in closed hydraulic circuits. On the other hand, the higher swash plate angle enhances the operating range in which the pumps and motors operate with a high level of efficiency.

High power density The high power density of the axial piston units from Liebherr results from the high swash plate angle, the compact rotating group and the high pressure level rated at up to 450 bar nominal pressure. Thanks to the high power density, smaller nominal compo-nent sizes can often be used with the same output.

Optimised flowcharacteristics

Thanks to the use of modern flow simulation software (CFD) and various measurements, pressure losses in the flow channel layout are minimised and the flow charac-teristics are improved. An optimal design of control plate and actuation geometry, configured to the operating range, minimizes pressure pulsations.

High dynamics The high control dynamics of the latest generation of Liebherr axial piston units (model series D) are made possible by a piloted adjustment, i.e. the positioning pis-ton is actuated via a pilot valve and feedback from the swivel joke comes via the feedback piston according to the amount of travel. The advantages of this type of set-ting are a high stiffness and a precise volume flow or swash plate angle adjustment.

Wide operating range

Efficiency measurements reveal not only high peak values but also very good values across a wide operating range. This enables efficient use in a variety of applications.


DPVP double pump

Two parallel pumps and one splitter box have been inte-grated in one housing in this unit. The two pumps in an open circuit can be supple-mented with an additional pump on the third output.


Application-specific developments

DMVA double motor

The double motor with narrow design is distinguished by a high power density and can be operated at higher speeds than an equivalent motor with corre-sponding size.

Liebherr understands the challenges involved in the construction and layout of complex systems. Due to the diverse range of machines and end devices in the company's product portfolio, Liebherr has a great deal of application experience, which is used to good effect in new and further developments.

With a product portfolio that is unique in the market, consisting of diesel engines, splitter boxes, hydraulic pumps and motors as well as planetary gearboxes and rope winches, Liebherr also has extensive system expertise in this area. For the customer this means that components are adapted optimally to each other with a range of integrated functions, optimal use of installation space and a high power density of the units.

Integrated functions

Thanks to optimal harmonisation between splitter box and hydraulic pump or ideal adaptation of hydraulic mo-tor and gearbox, not only is there an increase in perfor-mance and operating comfort but functions can also be integrated in the components in a space-saving manner. One such an example are the CMVE motors that feature an integrated brake valve as well as an integrated hold-ing brake and regulation and can be installed as plug-in motors in a Liebherr travel drive.

Small installation dimensions

For particularly intensive exploitation of the installation space, several functions can be engineered together as one unit. With the DPVP hydraulic double pump, for example, one gearbox was integrated that replaces a separate splitter box, thereby making a very short instal-lation length possible. The gearbox, which is driven by a separate oil circuit, allows high speeds thanks to an ideal transmission ratio. The component has an overall maxi-mum efficiency with minimum installation space and is considerably cheaper than individual components.

High power density The DMVA double motor comprises two rotating groups in one housing whose power output accumulates. The rotating group with a smaller diameter permits a higher speed than an equivalent single motor with correspond-ing size and thereby also a higher power output.

CMVE plug-in motor

To make best use of the instal-lation space, the brake valve, multi-disc holding brake and the regulation have been integrated in the CMVE motors.


DPVOVariable displacement pump, open circuit 18-19

DPVDVariable displacement double pump, open circuit 20-21

DPVPParallel pump - variable displacement, open circuit 22-23

DPVGVariable displacement pump, closed circuit 24-25


Open circuitThe axial piston pumps DPVO, DPVD and DPVP are designed for hydrostatic open circuit drives. The flow volume is proportional to the drive speed and the dis-placement volume. The volumetric flow can be varied steplessly by altering the angle of the swashplate.

Operating pressure range, suction sideAbsolute pressure at port SP abs min = 0.8 barP abs max= 2 bar

Operating pressure range, output sideNominal pressure PN = 400 barMaximum pressure Pmax = 450 bar

Installation positionPreferred installation position: with suction port at bot-tom. Installation position to be avoided: controllers at bottom. An oil leakage port at the top should be arranged to drain into the tank. The pumps must be filled with oil before commissioning.

Closed circuitDPVG axial piston pumps are designed for closed circuithydrostatic drives. The flow volume is proportional to thedrive speed and displacement volume. The volumetric flow can be varied steplessly by altering the angle of the swashplate. As the swash plate begins to pivot more, the volume flow increases from zero up to the maximum value. Two high pressure relief and feed valves protect the pump and motor and are integrated directly in the DPVG. An inte-grated pressure cut-off is available as an option.

Operating pressure rangePressure at port A or BNominal pressure PN = 450 barMaximum pressure Pmax = 500 bar

Auxiliary pumpThe feed pump, which is integrated as an option, serves as a supply and control oil pump and is safeguarded by a feed pressure relief valve. Suction pressure Ps min = 0.8 bar absolute(Ps min = 0.5 bar absolute during cold start)Feed pressure (at 2,000 rpm) Ps = 20- 35 bar

Installation positionAny position is permitted. However, an upper-mounted leakage oil connection should be chosen as a leakage oil line to the tank. The housing must be filled with the pres-sure fluid and bled.

General information

Housing pressureThe maximum housing pressure is:2 bar under constant load3 bar under brief load periods (cold oil with maximum viscosity) Detailed information is available on request.

Pressure fluidWhen choosing the pressure fluid suitable for the re-spective operation, please pay attention to the Liebherr “Oil filling of hydraulic pumps and motors” data sheet which is available on request.If using HF pressure fluid, i.e. environmentally-friendly pressure fluid, there may be limitations regarding the de-tails provided in the technical datasheets. Operation with HFA, HFB and HFC pressure fluids requires additional special measures. When ordering, please state which pressure fluid will be used.

Operating viscosityFor an optimum efficiency and operating time, we recom-mend the following optimal operating viscosity (depend-ing on circuit resp. operating temperature) νopt = 16 ... 36 mm²/s

Viscosity limitsThe maximum pressure fluid temperature of 115°C must not be exceeded even locally, i.e. in the bearing area for example.

For threshold conditions, the following values apply:νmin = 10 mm²/s (briefly at max. perm. temp. of tmax= 115°C)νmax = 1,600 mm²/s (briefly during cold start, i.e. tmin = -25°C)

At temperatures of -25°C to -40°C, special measures are necessary. Seek advice beforehand concerning this.

Hydraulic pumps in open and closed circuits

G

FD

A H

45°

C

I

E BH


Nominal size 108 140 165 215 215i *Displacement Vg max cm3 107.7 140.2 167.8 216.6 216.6

Max. speed at Vg max ** nmax rpm 2,400 2,300 2,100 2,000 2,600

Volumetric flow at nmax qv max L/min 258 294 352 433 563

Drive power p = 400 bar Pmax kW 172 196 235 289 375

Drive torque p = 400 bar Tmax Nm 685 893 1,068 1,379 1,379

* with impeller

** These values apply with an absolute pressure of 1 bar at the suction port. Higher suction limit values are possible if the suction pressure is raised at the suction port.

Product dimensions (mm) *** 108 140 165 215 215i *Splined shaft profile DIN 5480 tol. 9g W40x2x18 W45x2x21 W45x2x21 W50x2x24 W50x2x24

Centering diameter A 152.4 152.4 152.4 165.1 165.1

Screw connecting diameter B 228.6 228.6 228.6 - -

Fastening bores C M16 M16 M16 - -

Splined shaft length D 60 66 63.7 65 65

SAE connection length, suction side E 234.5 257.0 276.5 326 335

SAE connection length, pressure side F 250.5 259 260.5 329.5 319

Overall length G 310.5 344 347.5 405 398

Connection pitch H - - - 224.5 224.5

Fastening bores I - - - M20 M20

Pressure port SAE J518 (6,000 psi) 1" 1 1/4" 1 1/4" 1 1/2" 1 1/2"

Suction port SAE J518 (500 psi) 2 1/2" 3" 3" 3 1/2" 3 1/2"

Oil leakage port ISO 9974-1 M26x1.5 M26x1.5 M26x1.5 M33x2 M33x2

*** Dimensions may vary according to configuration and additional equipment (installation drawing on request).

Note:Various mounting flanges are possible (SAE J617a, SAE J744, DIN/ISO 3019-2).Integrated gear pump for control circuit oil is possible.Through-drive for pumps up to the same size as the installed pump is possible.

Control / regulation Other control function combinations available on request.Electric proportional ad-justment (positive or nega-tive characteristic curve)

Hydraulic adjustment pro-portional to control pres-sure (positive or negative characteristic curve)

Pressure control or pressure cut-off

Hyperbolic power regulation

Load Sensing Cumulative power regulation

Fan drive regulation

Vg min Vg max

I

Vg min Vg max

px

Vg min Vg max

pB

Vg min Vg max

pB

Vg min Vg max

pB

Vg min Vg max

p1+2 LU

I

pB

Series D: variable displacement pump DPVO (open circuit)

Nominal pressure: 400 bar / Maximum pressure: 450 bar


DPV O /Pump typeVariable displacement pump, series D DPV

Circuit typeOpen O

Nominal size108 140 165 215

Minimum displacement*0 - 15 % of Vg max, value in cm3/U • • • •* Other values on request

Control / regulation*Electric proportional adjustment / pressure cut-off • • • • EL / DAHyperbolic power regulation / load sensing • • • • LR / LSHyperbolic power regulation / hydraulic adjustment proportional to control pressure / pressure cut-off • • • • LR / SD / DAElectric proportional adjustment / load sensing • • • • EL / LSFan drive regulation • • • • LUPressure control or pressure cut-off • • • • DACumulative power regulation / hydraulic adjustment proportional to control pressure • • • • SL / SDLoad sensing / pressure cut-off • • • • LS/DAPreparation for electro-hydraulic control EHC0Integrated electro-hydraulic control EHC1* Other controls on request

Design1

Direction of rotation (looking at input shaft)**Right • • • • RLeft • • L** Availability of impeller see below

Mounting flange***Diesel engine flange SAE 1 (SAE J617a) 11Diesel engine flange SAE 2 (SAE J617a) • • • • 12Diesel engine flange SAE 3 (SAE J617a) - 13Diesel engine flange SAE 4 (SAE J617a) • • • - 14SAE D (SAE J744) - 24SAE E (SAE J744) - - - • 25DIN / ISO 3019-2 • • • 31 ...Non-standard flange 51 ...*** Other mounting flanges on request

Shaft endSplined shaft DIN 5480 • • • • 1Splined shaft SAE J744 2

ConnectionsHigh-pressure port: SAE (6,000 PSI)Suction port: SAE (500 PSI)Oil leakage and control pressure ports: metric (DIN 3852)

• • • • A

High-pressure port: SAE (3,000 PSI)Suction port: SAE (500 PSI)Oil leakage and control pressure ports: metric (DIN 3852)

B

All ports: metric thread C

AttachmentsWithout impeller with direction of rotation right • • • •

OWithout impeller with direction of rotation left • With impeller with direction of rotation right

IWith impeller with direction of rotation left •External pumps F

Integrated gear-type pump for control circuit oilWithout gear pump • • • • 00With gear pump, Vg = 24 cm3 with connections for external feed circuit filtering (Fe and Fa) • • 24

Through-driveWithout through-drive • • • • 0SAE A ASAE B • • • • BSAE C CSAE D • DSAE E • ENon-standard flange with through-drive • • K

Sensor technologyWithout • • • • 0With swash plate angle sensor WWith pressure sensor PWith speed sensor D

• Available On request- Not available

Type code for DPVO pumps

Vg min Vg max

I

Vg min Vg max

pB

F

B

BA

C

ED


Series D: double variable displacement pump DPVD (open circuit)


Nominal size All data for one rotating group 108

Displacement Vg max cm3 107.7

Max. speed at Vg max* nmax rpm 2,200

Volumetric flow at nmax qv max L/min 237

Drive power p = 400 bar Pmax kW 158

Drive torque p = 400 bar Tmax Nm 686

* These values apply with an absolute pressure of 1 bar at the suction port. Higher suction limit values are possible if the suction pressure is raised at the suction port.

Product dimensions (mm)** 108Splined shaft profile DIN 5480 tol. 9g W40x2x18

Centering diameter A 200

Screw connection pitch B 250

Fastening bores C 17

Splined shaft length D 66

Connection length, SAE flanges (suction and pressure) E 238

Shaft collar / mounting flange F 476

Pressure ports SAE J518 (6000 psi) 1”

Suction port SAE J518 (500 psi) 3”

Oil leakage port ISO 9974-1 M33x2

** Dimensions may vary according to configuration and additional equipment (installation drawing on request).

Control / regulation Other control function combinations available on request.

Electric proportional adjustment



DPVD O /Pump typeDouble variable displacement pump, series D DPVD

Circuit typeOpen O

Nominal size (per rotating group)108

Minimum displacement (per rotating group)*0 - 15 % of Vg max, value in cm3 •* Other values on request

Control / regulation**Electric proportional adjustment / pressure cut-off • EL / DAHyperbolic power regulation / load sensing LR / LSHyperbolic power regulation / hydraulic adjustment proportional to control pressure / pressure cut-off LR / SD / DAElectric proportional adjustment / load sensing EL / LSFan drive regulation LUPressure control or pressure cut-off DACumulative power regulation / hydraulic adjustment proportional to control pressure SL / SDLoad sensing / pressure cut-off LS/DAPreparation for electro-hydraulic control EHC0Integrated electro-hydraulic control EHC1** Other controls on request

Design1

Direction of rotation (looking at input shaft)Right • RLeft LAvailability of impeller see below

Mounting flange***Diesel engine flange SAE 1 (SAE J617a) • 11Diesel engine flange SAE 2 (SAE J617a) 12Diesel engine flange SAE 3 (SAE J617a) 13Diesel engine flange SAE 4 (SAE J617a) 14SAE D (SAE J744) - 24DIN / ISO 3019-2 31…Non-standard flange 51…*** Other mounting flanges on request

Shaft endSplined shaft DIN 5480 • 1Splined shaft SAE J744 2


• A


B


AttachmentsNo attachment • OWith impeller IExternal pump F

Integrated gear pump for control circuit oilWithout gear pump • 00With gear pump, Vg = 24 cm3 with connections for external feed circuit filtering (Fe and Fa) 24

Through-driveWithout through-drive 0

SAE A A

SAE B • B

Non-standard flange with through-drive K

Sensor technologyWithout • 0With swash plate angle sensor WWith pressure sensor PWith speed sensor D


Type code for DPVD pumps

Vg min Vg max

I

Vg min Vg max

px

Vg min Vg max

pB

Vg min Vg max

pB

Vg min Vg max

pB

Vg min Vg max

p1+2

G

B

C

F

E

D

A


Series D: parallel variable displacement pump DPVP (open circuit)


Nominal size All data for each rotating group 108 108 165 165i*

Displacement Vg max cm3 107.7 107.7 167.8 167.8

Max. speed at Vg max ** nmax rpm 2,300 2,300 2,100 2,600

Volumetric flow at nmax qv max L/min 248 248 352 436

Drive power p = 400 bar Pmax kW 165 165 235 291

Drive torque p = 400 bar Tmax Nm 686 686 1,068 1,068

* with impeller.

** These values apply with an absolute pressure of 1 bar at the suction port. Higher suction limit values are possible if the suction pressure Pabs is raised at the suction port.

Product dimensions (mm)*** 108 (SAE-1) 108 (SAE-2) 165 165i*Splined shaft profile DIN 5480 tol. 9g W50x2x24 W50x2x24 W70x3x22 W70x3x22

Centering diameter A 511.18 447.7 511.18 511.18

Screw connecting diameter B 530.2 466.7 530.2 530.2

Fastening bores C 11 11 11 11

Splined shaft length D 27 73.4 50.5 50.5

Shaft collar / mounting flange E 46 0 26.5 26.5

Connection length, SAE flanges F 369.4 323 423 423

Overall length G 462 416 517.9 605.9

Pressure ports SAE J518 (6,000 psi) 1" 1" 1 1/4" 1 1/4"

Suction port SAE J518 (500 psi) 3" 3" 4" 3" (2x/pump)

Oil leakage port M33x2 M33x2 M33x2 M33x2

*** Dimensions may vary according to configuration and additional equipment (installation drawing on request).

Note:DPVP pumps can be used in single or twin circuit systems.Integrated gear pump for control circuit oil (24 cc) standard on output II, other versions on request.Direction of rotation of output: right for variant SAE-1 and left for variant SAE-2.Through-drives to output I and/or output II are possible.Different transmission ratios are possible. Additional data on request.


Electric proportional adjust-ment (positive or negative characteristic curve)

Hydraulic adjustment proportional to control pressure (positive or negative characteristic curve)


Hyperbolic power regulation

Load Sensing Cumulative power regulation


DPVP O /Pump typeParallel variable displacement pump, series D DPVP

Circuit typeOpen O

Nominal size (per rotating unit)108 165

Minimum displacement (per rotating unit)*0 - 15 % of Vg max, value in cm3

* Other values on request

Control / regulation**Electric proportional adjustment / pressure cut-off EL / DAHyperbolic power regulation / load sensing • • LR / LSHyperbolic power regulation / hydraulic adjustment proportional to control pressure/ pressure cut-off • • LR / SD / DAElectric proportional adjustment / load sensing • • EL / LSFan drive regulation LUPressure control or pressure cut-off DACumulative power regulation / hydraulic adjustment proportional to control pressure • • SL / SDLoad sensing / pressure cut-off LS/DAPreparation for electro-hydraulic control EHC0Integrated electro-hydraulic control EHC1** Other controls on request

Design1

Direction of rotation (looking at input shaft)Right • • RLeft - - L Availability of impeller see below

Mounting flange***Diesel engine flange SAE 1 (SAE J617a) • • 11Diesel engine flange SAE 2 (SAE J617a) • - 12*** Other mounting flanges on request

Shaft endSplined shaft DIN 5480 • • 1Splined shaft SAE J744 2


• • A


B


AttachmentsNo attachment • • OWith impeller - • IExternal pumps F

Integrated gear pump for control circuit oilWithout gear pump 00With gear pump, Vg = 24 cm3 with connections for external feed circuit filtering (Fe and Fa) • • 24

Through-drive (side P1 and / or P2)Without through-drive • • 0

SAE A A

SAE B • • B

SAE C C

SAE D D

Sensor technologyWithout • • 0With swash plate angle sensor WWith pressure sensor PWith speed sensor D


Type code for DPVP pumps

-Vg max +Vg max

I

0 -Vg max +Vg max

px

0 -Vg max +Vg max

TCHpA,B

pxB pxA

0 -Vg max +Vg max

TCEpA,B

IxB IxA

0-Vg max +Vg max

pB

0

D

F

C

9

A

E

B

G

H

B


Series D: variable displacement pump DPVG (closed circuit)


Nominal size 85 108 165 280


Max. speed at Vg max nmax rpm 3,300 3,000 2,700 2,500

Volumetric flow at nmax qv max L/min 281 323 453 709

Drive power p = 430 bar Pmax kW 201 232 325 508

Drive torque p = 430 bar Tmax Nm 583 737 1,149 1,940

Product dimensions (mm)* 85 108 165 280Splined shaft profile DIN 5480 tol. 9g W35x2x16 W45x2x21 W45x2x21 W55x2x26

Centering diameter A fit e8 160 152 200 165.1

Screw connecting diameter B 141.4 161.6 176.8 224.5


Splined shaft length D 50 55 60 68

Height adjustment E 177.6 190 205 225.5

SAE connection length, pressure F 223.5 223 270 295.5

Length without/with integrated feed pump G 271.5 / 322.5 268 / 315.5 322/381 360 / -

Overall length H 340.6 330.5 358.5 395

Pressure ports SAE J518 (6,000 psi) 1" 1" 1 1/4" 1 1/2"

Oil leakage port ISO 9974-1 M26x1.5 M33x2 M42x2 M42x2

* Dimensions may vary according to configuration and additional equipment (installation drawing on request).

Note:Various mounting flanges are possible (SAE J617a, SAE J744, DIN/ISO 3019-2).With/without integrated feed pump; integrated pressure limiting valve is possible.Through-drive for pumps up to the same size as the installed pump is possible.HD ports are possible at the side or underneath.


Electric proportional adjustment

Hydraulic proportional adjustment depending on control pressure

Pressure cut-off Torque control, hydraulic, with pressure cut-off

Torque control, electric, with pressure cut-off


DPV G /Pump typeVariable displacement pump, series D DPV

Circuit typeClosed G

Nominal size85 108 165 280• • • •

Minimum displacementVg min = 0 cm³ • • • • 000

Control / regulation*Electric proportional adjustment / pressure cut-off • • • EL / DAElectric proportional adjustment • ELHydraulic proportional adjustment depending on control pressure SDTorque control, hydraulic, with pressure cut-off • • TCHTorque control, electric, with pressure cut-off • • • TCESpeed control, hydraulic DZHSpeed control, electric DZEPreparation for electro-hydraulic control EHC0Integrated electro-hydraulic control EHC1* Other controls on request

Design1

Direction of rotation (looking at input shaft)Right • • • • RLeft • • • • L

Mounting flange***Diesel engine flange SAE 1 (SAE J617a) 11Diesel engine flange SAE 2 (SAE J617a) 12Diesel engine flange SAE 3 (SAE J617a) 13Diesel engine flange SAE 4 (SAE J617a) - 14SAE D (SAE J744) - 24SAE E (SAE J744) - - • 25DIN / ISO 3019-2 • • • 31…Transmission flange 41…Non-standard flange 51…*** Other mounting flanges on request

Shaft endSplined shaft DIN 5480 • • • • 1Splined shaft SAE J744 2

ConnectionsHigh-pressure port: SAE (6,000 PSI) • • • •Suction port: SAE (500 PSI) • • • AOil leakage and control pressure ports: metric (DIN 3852) • • • •High-pressure port: SAE (3,000 PSI)Suction port: SAE (500 PSI)Oil leakage and control pressure ports: metric (DIN 3852)

B


AttachmentsNo attachment • • • • OWith impeller - - - - IExternal pump F

Integrated feed pump**Without feed pump • • • 00With feed pump, Vg = 30 cm3 • • 30With feed pump, Vg = 40 cm3 • • 40With feed pump, Vg = 50 cm3 • 50With feed pump, attached filter and cold start valve • F** Other nominal sizes on request

Through-driveWithout through-drive • 0SAE A ASAE B • • • • BSAE C CSAE D • DSAE E ENon-standard flange with through-drive K

ValveHigh pressure limiting valve with feed function • • • • NS-DBHigh pressure limiting valve with feed function with feed pressure valve • • • • NS-DB-DS

Sensor technologyWithout • • • • 0With swash plate angle sensor WWith pressure sensor PWith speed sensor D


Series D: variable displacement pump DPVG (closed circuit)


Type code for DPVG pumps


DMVAVariable displacement motor 28-29

DMFAFixed displacement motor 30-31

DMVAVariable displacement double motor 32-33

CMVEVariable displacement plug-in motor, open circuit 34-35

LMFFixed displacement motor 36-37

FMFFixed displacement plug-in motor 38-39

FMVVariable displacement plug-in motor 40-41


Hydraulic motors

Installation positionAny position is permitted. However, an upper-mounted leakage oil connection should be chosen as a leakage oil line to the tank. The housing must be filled with the pres-sure fluid and bled before commissioning.

Housing pressureThe maximum housing pressure is:2 bar under constant load3 bar under brief load periods (cold oil with maximum viscosity)Detailed information is available on request.

The Liebherr axial piston motors are engineered for swash-plate applications and are designed for hydrostatic drive systems in open and closed circuits. The motors are suit-able for mobile use. Through-drives and the attachment of holding brakes can be arranged on request.

Operating pressure rangePressure at port A or B.Nominal pressure and maximum pressure: see technical data on the following pages.

General information

Pressure fluidWhen choosing the pressure fluids suitable for the re-spective operation, please comply with the Liebherr “Oil filling of hydraulic pumps and motors” data sheet which is available on request. If using HF pressure fluid, i.e. environmentally-friendly pressure fluid, there may be limitations regarding the de-tails provided in the technical datasheets. Operation with HFA, HFB and HFC pressure fluids requires additional special measures. When ordering, please state which pressure fluid has been used.

Operating viscosity rangeFor an optimum efficiency and operating time, we recommend the following optimal operating viscos-ity (depending on circuit resp. operating temperature) νopt = 16 ... 36 mm²/s.

Viscosity thresholdThe maximum pressure fluid temperature of 115°C must not be exceeded even locally, i.e. in the bearing area for example.

For threshold conditions, the following values apply:νmin = 10 mm²/s (briefly at max. perm. temp. of tmax= 115°C)

νmax = 1,600 mm²/s (briefly during cold start, i.e. tmin = -25°C)

At temperatures of -25°C to -40°C, special measures are necessary. Seek advice beforehand concerning this.

Vg min Vg max

px

Vg min Vg max

pB

B

E

F

D

A

9

B

C

Vg min Vg max

I

Vg min Vg max

px

Vg min Vg max

pB


Series D: DMVA motor (variable displacement)

NG108, NG165 and NG215: Closed circuit – nominal pressure: 450 bar / maximum pressure: 500 barNG355: Open and closed circuit – nominal pressure: 380 bar / maximum pressure: 400 bar

Nominal size 108 165 215 355


Max. speed at Vg max and p max nmax rpm 3,350 3,000 2,700 2,400

Max. speed at Vg / Vg max = 0.65 and p = 200 bar nmax rpm 5,125 4,590 4,100 3,670

Flow at nmax qv max L/min 361 503 584 853

Output power p = 430 bar, NG355 with p = 360 bar Pmax kW 259 361 419 512

Output torque p = 430 bar, NG355 with p = 360 bar Tmax Nm 737 1149 1,481 2,151

Product dimensions (mm)* 108 165 215 355Splined shaft profile DIN 5480 tol. 9g W40x2x18 W45x2x21 W50x2x24 W60x2x28

Centering diameter A fit h8 160 180 200 250

Screw connection pitch B 141.4 158.4 176.7 352x120


Splined shaft length D 54 60 65 78

SAE connection length, pressure E 309 357 - -

Overall length F 345 376 435 433.5

Pressure ports SAE J518 (6,000 psi) 1" 1 1/4" 1 1/4" 1 1/2"

Oil leakage port ISO 9974-1 M26x1.5 M26x1.5 M33x2 M33x2


Note:A brake valve can be attached.The pressure ports can be at the rear or side on the connecting plate.


Electrical adjustment with pro-portional magnet (positive or negative characteristic curve)

Hydraulic adjustment, depending on control pressure (positive or negative characteristic curve)

Pressure cut-off Hydraulic adjustment, high-pressure related

Hydraulic two-point control


DMVA /Motor typeVariable displacement motor, series D DMVA

Circuit typeOpen O

Closed G


• • • •

Minimum displacement*0 - 66 cm3 • - - 000 - 066

41.2 - 151.9 cm3 - • - 041.2 - 151.9

270 cm3 (non-adjustable) - - - • 270

100 cm3 (adjustable) - - • 000 - 100


Control / regulationHydraulic adjustment, high-pressure related • • - HD

Hydraulic adjustment depending on control pressure / pressure cut-off • • SD / DA

Electrical adjustment with proportional magnet • • • • EL Hydraulic two point control - • ZH

Electrical adjustment with proportional magnet / pressure cut-off • • • EL / DA

Oversteering • UE

Preparation for electro-hydraulic control EHC0

Integrated electro-hydraulic control EHC1

Design1

Direction of rotation (looking at input shaft)Right - - - - R

Left - - - - L

Alternating • • • • W

Mounting flange**DIN / ISO 3019-2 • • • 31…

Non-standard flange - • 51…

** Other mounting flanges on request

Shaft endSplined shaft DIN 5480 • • • • 1

Splined shaft SAE J744 2

ConnectionsHigh-pressure ports: SAE (6,000 PSI)Oil leakage and control pressure ports: metric (DIN 3852)

• • • • A

High-pressure ports: SAE (3,000 PSI)Oil leakage and control pressure ports: metric (DIN 3852)

B

All ports: metric thread - - - - C

Additional equipmentNo attachment • • • • 0

Through-driveWithout through-drive • • • 0

Non-standard through-drive • K

Valve / SensorWithout • 0

High pressure limiting valve • • • • OH

Hydraulically adjustable high pressure relief valve OX

Flushing for closed circuit • • • SO

Flushing for closed circuit with high pressure relief valve SH

Flushing for open circuit • MO

Flushing for open circuit with high pressure relief valve MH

Resuction valve with high pressure relief valve NH

Resuction valve with hydraulically adjustable high pressure relief valve NX

Hydraulically adjustable high pressure relief valve with one-rotation-direction valve XL

High pressure relief valve with brake valve • • • BH

SensorWithout • • • • 0

With speed sensor • • • D

With swash plate angle sensor W

With pressure sensor P


Series D: DMVA motor (variable displacement)

NG108, NG165 and NG215: Closed circuit – nominal pressure: 450 bar / maximum pressure: 500 barNG355: Open and closed circuit – nominal pressure: 380 bar / maximum pressure: 400 bar

Type code for DMVA motors

G

F

E

D

A

9 G

BB

C


Series D: DMFA motor (fixed displacement)

Open and closed circuit – Nominal pressure: 380 bar / Maximum pressure: 400 bar

Nominal size 355

Displacement Vg max cm3 355.6

Max. speed at Vg max and p = 360 nmax rpm 2,400

Flow at nmax qv max L/min 853

Output power p = 360 bar Pmax kW 512

Output torque p = 360 bar Tmax Nm 2,037

Product dimensions (mm)* 355Splined shaft profile DIN 5480 tol. 9g W60x2x28

Centering diameter A fit h8 200

Screw connection pitch B 152

Fastening bores C 26

Splined shaft length D 78

SAE connection length, pressure E 351.5

Overall length F 405.5

Screw connection pitch G 25

Pressure ports SAE J518 (6,000 psi) 1 1/2"

Oil leakage port ISO 9974-1 M33x2


Note:Flushing valve integrated into connection plate.External brake valve can be attached to SAE port.An external Liebherr multi-disc brake can be attached (non-standard flange with through drive shaft).


DMFA /Motor typeFixed displacement motor, series D DMFA

Circuit typeOpen OClosed G

Nominal size355

Control / regulationNo regulation • 00

Design1

Direction of rotation (looking at input shaft)Right - RLeft - LAlternating • W

Mounting flange*DIN / ISO 3019-2 31 ...Non-standard flange • 51 ...* Other mounting flanges on request

Shaft endSplined shaft DIN 5480 • 1Splined shaft SAE J744 2

ConnectionsHigh-pressure ports: SAE (6,000 PSI)

• AOil leakage and control pressure ports: metric (DIN 3852)High-pressure ports: SAE (3,000 PSI)

BOil leakage and control pressure ports: metric (DIN 3852)All ports: metric thread C

Additional equipmentNo attachment • 0Multi-disc brakes L

Through-driveWithout through-drive (closed) 0Non-standard through-drive • K

Valve None 0High pressure limiting valve OHHydraulically adjustable high pressure relief valve OXFlushing for closed circuit • SOFlushing for closed circuit with high pressure relief valve SHFlushing for open circuit MOFlushing for open circuit with high pressure relief valve • MHResuction valve with high pressure relief valve NHResuction valve with hydraulically adjustable high pressure relief valve NXHigh pressure relief valve with brake valve BH

SensorNone • 0With speed sensor • DWith swash plate angle sensor WWith pressure sensor P


Type code for DMFA motorsSeries D: DMFA motor (fixed displacement)


Vg min Vg max

I

E

B

B

F

C

G

D

I A

13

H

Vg min Vg max

pB

Vg min Vg max

px


Series D: DMVA double motor (variable displacement)

Closed circuit – nominal pressure: 450 bar / maximum pressure: 500 bar

Nominal size 165-108 165-165

Displacement Vg max cm3 275 335

Max. speed at Vg max and p = 430 bar nmax rpm 3,000 3,000

Max. speed at Vg/ Vg max = 0.65 and p = 200 bar nmax rpm 4,590 4,590

Flow at nmax qv max L/min 825 1,005

Output power p = 430 bar Pmax kW 591 720

Output torque p = 430 bar Tmax Nm 1,883 2,294

Product dimensions (mm) * 165-108 165-165Splined shaft profile DIN 5480 tol. 9g W45x2x21 W45x2x21

Centering diameter A fit h8 180 180

Screw connection pitch B 158.4 158.4

Fastening bores C 18 18

Splined shaft length D 58 68

Regulator width dimension E 159 159

SAE flange width dimension F 145 145

Connection length, SAE flanges G 277 277

Overall length H 547.2 567

Overall width I 247 252

Pressure ports SAE J518 (6,000 psi) 1 1/4" 1 1/4"

Oil leakage port ISO 9974-1 M26x1.5 M26x1.5

* Dimensions may vary according to configuration and additional equipment (installation drawing on request)

Note:Through-drive possible.


Electrical adjustment with proportional magnet (positive or negative characteristic curve)

Pressure cut-off Hydraulic adjustment, depend-ing on control pressure (positive or negative characteristic curve)


DMVA G /Motor typeVariable displacement double motor, Series D DMVA

Circuit typeClosed G

Nominal size165-108 165-165

• •

Minimum displacement*0 - 100 cm3 • • 000 - 100


Control / regulationElectric proportional adjustment • • EL

Electric proportional adjustment / pressure cut-off • • EL / DA

Hydraulic adjustment depending on control pressure / pressure cut-off • SD / DA

Electric proportional adjustment / pressure cut-off / oversteering • • EL / DA / UE

Hydraulic adjustment depending on control pressure / pressure cut-off / oversteering • • SD / DA / UE

Preparation for electro-hydraulic control EHC0

Integrated electro-hydraulic control EHC1

Design1

Direction of rotation (looking at input shaft)Right - - R

Left - - L

Alternating • • W

Mounting flange**DIN / ISO 3019-2 • • 31…

Non-standard flange 51…

** Other mounting flanges on request

Shaft endSplined shaft DIN 5480 • • 1



• • A


B


Additional equipmentNo attachment • • O

Through-driveWithout through-drive (closed) • • 0

Non-standard through-drive • K

ValveNone 0

High pressure relief valve • • OH


Flushing for closed circuit SO


Flushing for open circuit MO




High pressure relief valve with brake valve BH

SensorNone • • 0

With speed sensor • • D




Type code for DMVA motors

G

B

C

FED

A

Vg min Vg max

px

Vg min Vg max

pB


Series C: CMVE variable displacement plug-in motor (open circuit)


Nominal size 85 108 135 165

Displacement Vg max cm3 85.2 108 135.7 165.9

Max. speed at Vg max and p = 360 bar nmax rpm 3,900 3,470 3,250 3,000

Max. speed at Vg min and p = 200 bar nmax rpm 5,000 4,500 4,550 4,200

Flow at nmax qv max L/min 332 375 441 498

Output power p = 360 bar Pmax kW 199 225 265 299

Output torque p = 360 bar Tmax Nm 488 619 778 951

Product dimensions (mm)* 85 108 135 165Splined shaft profile (internal gear) DIN 5480 Tol. 9H/9g W32x1.25x24 N35x2x16 W40x2x18 N40x2x18

Centering diameter A fit h8 200 215 226 240

Screw connection diameter B 222** 238** 248** 265**


Splined shaft length D 24.5 26.5 31.5 37.5

Insertion length E 117 122 132 137

Connection length, SAE flanges F 135 150 160 182

Overall length G 303 312.5 332.5 374

Pressure ports SAE J518 (6000 psi) / ISO M33x2 1" 1'' 1 1/4"

Oil leakage port ISO 9974-1 M26x1.5 M26x1.5 M26x1.5 M26x1.5

* Dimensions may vary according to configuration and additional equipment (installation drawing on request). ** 4-hole special attachment flange.

Note:Integrated brake valve with automatic brake release, flushing, pressure limiting valves and internal multi-disk brake.This motor is mainly intended for installation in a mechanical travel drive.

Control / regulationHydraulic two point control Pressure control or

pressure cut-off


CMVE O /Motor typeVariable displacement plug-in motor, series C CMVE

Circuit typeOpen O


• • • •

Minimum displacement*Vg min= 38.6 (cm3) • - - -Vg min= 44.9 (cm3) • - - -Vg min= 50.25 (cm3) • - - -Vg min= 53.9 (cm3) • - - -Vg min= 65 (cm3) - • - -Vg min= 75 (cm3) - • - -Vg min= 81 (cm3) - - • -Vg min= 106 (cm3) - - - •Vg min= 117 (cm3) - - - •* Other values on request

Control / regulationHydraulic two point control • • • • ZH

Pressure control or pressure cut-off • - - - DA

Design1

Direction of rotation (looking at input shaft)Right - - - - R

Left - - - - L

Alternating • • • • W

Mounting flangeNon-standard flange • • • • 51…

Shaft endSplined shaft DIN 5480 • • • • 1



- • • • A


B

All ports: metric thread • - - - C

Additional equipmentNo attachment 0

Multi-disc brakes • • • • L

Through-driveWithout through-drive (closed) • • • • 0

Non-standard through-drive - - - - K

ValveNone 0

High pressure relief valve OH


Flushing for open circuit MO




High pressure relief valve with brake valve • • • • BH

SensorNone • • • • 0

With speed sensor D




Series C: CMVE variable displacement plug-in motor (open circuit)


Type code for CMVE motors

F

C

45°

B

ED

A


Series A: LMF motor (fixed displacement)


Nominal size 107 125Displacement Vg max cm3 107.7 125.6

Max. speed at Vg max and p = 330 bar nmax rpm 3,540 3,290

Flow at nmax qv max L/min 381 413

Output power p = 330 bar Pmax kW 210 227

Output torque p = 330 bar Tmax Nm 566 660

Product dimensions (mm)* 107 125Splined shaft profile DIN 5480 tol. 9g W40x2x18 W40x2x18

Centering diameter A fit h8 160 160

Screw connecting diameter B 200 200

Fastening bores C 18 18

Splined shaft length D 45 45

SAE connection length, pressure E 253.0 253.0

Overall length F 292.0 292.0

Pressure ports SAE J518 (6,000 psi) 3/4'' 1 1/4"

Oil leakage port R 3/4" R 3/4"


Note:External brake valve can be attached to SAE port.


LMF /Motor typeFixed displacement motor, series A LMF

Nominal size107 125

• •

Series1

Control / regulationNo regulator • • 00

ValvesNone • • 00High pressure relief valve OHHydraulically adjustable high pressure relief valve OXFlushing for closed circuit SOFlushing for closed circuit with high pressure relief valve SHFlushing for open circuit MOFlushing for open circuit with high pressure relief valve MHResuction valve with high pressure relief valve NHResuction valve with hydraulically adjustable high pressure relief valve NXResuction valve with high pressure relief valve with damping NHDFlushing for open circuit with one-rotation-direction valve MLOne-rotation-direction valve OLHigh pressure relief valve and one-rotation-direction valve HLHydraulically adjustable high pressure relief valve with one-rotation-direction valve XLFlushing for closed circuit with one-rotation-direction valve SL

Mounting flangeISO 4-hole flange • • 6

Through-driveWithout through-drive • • 00Non-standard through-drive 10

Additional functionSpeed sensor D


Type code for LMF motors

G

C

BA

FED


Series A: FMF plug-in motor (fixed displacement)

Open and closed circuit – Nominal pressure: 350 bar / Maximum pressure: 380 bar On request up to nom. size 64 – Nominal pressure: 420 bar / Maximum pressure: 450 bar

Nominal size 25 32 45 58 64 90 100 125 165 250Displacement Vg max cm3 25 31.8 45.6 58.3 64.3 90.7 103.2 125.6 165.9 256.8

Max. speed at Vg max and p = 330 bar nmax rpm 5,180 5,180 4,620 4,110 4,110 3,670 3,540 3,290 3,000 2,606

Absorption current at nmax qv max L/min 130 165 211 240 264 333 365 413 498 669

Output power p = 330 bar Pmax kW 71 91 116 132 145 183 201 227 274 368

Output torque p = 330 bar Tmax Nm 131 167 240 306 338 477 542 660 872 1,349

Product dimensions (mm)* 25 32 45 58 64 90 100 125 165 250Splined shaft profile DIN 5480 tol. 9g W25x1.25x18 W25x1.25x18 W30x2x14 W35x2x16 W35x2x16 W35x2x16 W40x2x18 W40x2x18 W45x2x21 W50x2x24

Centering diameter A fit h8 135 135 160 170 170 190 190 210 230 260

Screw connecting pitch B 160 160 200 200 200 224 224 248 280 310

Fastening bores C 13 13 18 17 17 21 21 21 26 26

Splined shaft length D 30 30 35 40 40 40 45 45 50 55

Insertion length E 88.5 88.5 92.3 92.3 92.3 110.5 110.5 122.8 130 145

Connection length, SAE flanges F 91 91 99.7 122.7 122.7 124 124 142 155 163 2/3

Overall length G 134.5 134.5 156.2 163.7 163.7 159 159 179.2 201 214

Pressure ports SAE J518 (6,000 psi) 1/2" 1/2" 3/4" 1" 3/4" or 1" 1" 1" 1 1/4" 1 1/4" 1 1/4"

Oil leakage port M16x1.5 M16x1.5 M18.1.5 M18x1.5 M18x1.5 M26x1.5 R 3/4" R 3/4" M33x2 M33x2


Note:External brake valve can be attached to SAE port.


FMF /

Motor type

Fixed displacement plug-in motor, series A FMF

Nominal size

25 32 45 58 64 90 100 125 165 250

• • • • • • • • • •

Series

1

Control / regulation

No regulator • • • • • • • • • • 00

Valves

None • • • 00

High pressure relief valve OH


Flushing for closed circuit • • • • • • • SO


Flushing for open circuit • • MO

Flushing for open circuit with high pressure relief valve • • MH

Resuction valve with high pressure relief valve • • • • • • • NH

Resuction valve with hydraulically adjustable high pressure relief valve • • • • NX

Resuction valve with high pressure relief valve with damping • NHD

Flushing for open circuit with one-rotation-direction valve ML

One-rotation-direction valve OL

High pressure relief valve and one-rotation-direction valve HL

Hydraulically adjustable high pressure relief valve with one-rotation-direction valve XL

Flushing for closed circuit with one-rotation-direction valve SL

Direction of rotation (looking at input shaft)

Right • • • • • R

Left • • • • • • L

Alternating • • • • • • • • • • W

Mounting flange

2-hole flange • • • • • • • • • • 7

Through-drive

Without through-drive • • • • • • • • • • 00

Non-standard through-drive - - - - - - - - - - 10

Additional function

Speed sensor • • • • • • • D

• Available

On request

- Not available

Type code for FMF motors

G

CF

ED

A B

Vg min Vg max

px


Series A: FMV variable displacement plug-in motor

Nominal pressure: 350 bar / Maximum pressure: 380 bar On request or nom. size 75 – Nominal pressure: 420 bar / Maximum pressure: 450 bar

Nominal size 75 100 140 165 250Displacement Vg cm3 75 103.2 141.2 165.8 256.8

Max. speed at Vg max and p = 330 bar nmax rpm 3,900 3,540 3,160 3,000 2,600

Max. speed at Vg / Vg max = 0.65 and p = 200 bar nmax rpm 5,460 4,950 4,420 4,200 3,640

Flow at nmax qvmax L/min 293 365 446 497 668

Output power p = 330 bar Pmax kW 161 201 245 274 367

Output torque p = 330 bar Tmax Nm 394 542 742 871 1,349

Product dimensions (mm)* 75 100 140 165 250Splined shaft profile DIN 5480 tol. 9H W35x2x16 W35x2x16 W40x2x18 W45x2x21 W50x2x24

Centering diameter A fit h8 170 190 210 230 260

Screw connecting pitch B 202 224 250 280 310

Fastening bores C 17 21 22 26 26

Splined shaft length D 40 40 45 50 55

Insertion length E 92.3 110.5 123 130 145

Connection length, SAE flanges F 134.2 140 155 174 188

Overall length G 175.2 175 194 220 238

Pressure ports SAE J518 (6,000 psi) 1" 1" 1 1/4" 1 1/4" 1 1/4"

Oil leakage port M26x1.5 R 3/4" R 3/4" M33x2 M33x2


Note:This motor is mainly intended for installation in a mechanical travel drive.External brake valve can be attached to SAE port.

Control / regulation Hydraulic two-point control


FMV /

Motor typeVariable displacement plug-in motor, Series A FMV

Nominal size75 100 140 165 250• • • • •

Series1

Control / regulationNo regulator - - - - - 00Two-point control • • • • • 2D

ValvesNone 00Flushing for closed circuit SOFlushing for closed circuit with high pressure relief valve SHFlushing for open circuit MOFlushing for open circuit with high pressure relief valve MHHigh pressure relief valve with preparation for an external brake valve • • • • • VBH

Mounting flange2-hole flange • • • • • 7

Through-driveWithout through-drive • • • • • 00Non-standard through-drive - - - - - 10

Minimum displacementVg min = 33 cm3 • - - - - 33Vg min = 44 cm3 • - - - - 44Vg min = 56 cm3 - • - - - 56Vg min = 63.5 cm3 - • - - - 63.5Vg min = 89 cm3 - - • - - 89Vg min = 101 cm3 - - • - - 101Vg min = 110 cm3 - - - - • 110Vg min = 117 cm3 - - - • - 117Vg min = 140 cm3 - - - - • 140Vg min = 160 cm3 - - - - • 160Vg min = 202 cm3 - - - - • 202Vg min value in cm³ on customer request

Additional functionSpeed sensor D


Type code for FMV motors


Foot pedalVG7 2/3 R07

Foot pedalVG7 2/3

Single pilot control device VG7 1/1

Double pilot control device VG7 2/2

Manual pilot control device VG7 4/4 UM03


Pilot control devices and hydraulic valvesAs a system supplier, Liebherr develops and produces a range of pilot control de-vices and hydraulic valves to actuate the axial piston units. These are particularly sturdy, have a simple design and are tried and tested in construction machines.

Pilot control devicesThe pilot control devices offered by Liebherr operate completely mechanically. In addition to single and double pilot control devices, foot and hand-operated pilot control devices are available. The VG 6-8 manual pilot control device is a newly developed pilot control device with a housing made from aluminium. It is therefore very lightweight and enables high flow rates with a steady pressure pattern.

Hydraulic valves Liebherr develops a wide range of different valves, such as flushing valves and feed pressure valves, as well as flow regulators, non-return, pressure limiting and damper valves for Liebherr pumps and motors. The brake valve assures a controlled braking response of the end application. The DBVS22 pressure limi-ting valve and the DV25 damper valve stabilise the application during directional changes by soft braking and acceleration of the slewing mechanism.

Manual pilot control device VG 6-8 4/4

Damper valve DV25

Non-return valve RVH10

Pressure limiting valve DBVS22

Flushing valve DBE10


Examples of useEarthmoving equipmentLiebherr supplies axial piston pumps and motors as well as pilot control devices and valves for various functions in earthmoving equipment like mobile and craw-ler excavators, wheel loaders, crawler tractors and loaders, and also deep foun-dation machines. Possible functions are hydrostatic travel drives and swivelling drives.

Mining equipmentFor mining excavators, Liebherr develops and manufactures rugged hydraulic components for the working hydraulics, swivelling and travel drives as well as fan drives. Together with Liebherr diesel engines and splitter boxes, a complete diesel-hydraulic drivetrain can be formed. The units are designed to withstand high mechanical loads and the rough environments in mining.

Multi-circuit unit MKA 450 C with splitter box and working hydraulics pump, swivelling mechanism pump and fan pump

Manually operated pilot control device VG 6/8

Plug-in motors type Typ FMF in various nominal sizes as fan, swivelling mechanism and travel gear motors


Examples of useCranesFor mobile, crawler and special cranes Liebherr offers a wide range of axial piston pumps and motors as well as pilot devices and valves. These units are used for hydrostatic travel and slewing drives and to drive winches and cylinders.

Maritime applicationsFor hydraulic components that are used in mobile harbour, ship and offshore crane special meaures are taken to prevent corrosion and ensure a long service life. For energy storage systems in deep sea and mobile harbour cranes, Liebherr has developed axial piston units that run both as pump and motor.

Special machinesThrough application-specific planning and design, Liebherr axial piston units are ideally suited to the most various special vehicles and machinery. Hydrostatic drives are used for example in pipeline equipment, straddle carriers and waste shredders.

Hydraulic double and single motor DMVA for the hydrostatic rope winch drive

Variable pumps DPVG for the hydrostatic rope winch drive

Flange-mounted motor LMF for the hydrostatic wheel drive

Liebherr-Component Technologies

Liebherr-Component Technologies AG, based in Bulle, Switzerland, is responsible for all activities of the components division of the Liebherr group. The companies and business areas belonging to this division are specialised in the development, design, manufacture and reconditioning of high-performance components in the field of mechanical, hy draulic and electrical drives and control technology. The sale of components to customers outside the Liebherr group of companies is managed centrally by Liebherr-Components AG in Nussbaumen, Switzerland.

Biberach: large diameter bearings, gearboxes, rope winches, switchgear, electronics, electrical machines

Lindau: electronics, power electronics

Bulle: diesel engines, gas engines, splitter boxes, axial piston units, injection systems

Ettlingen: remanufactured components

Kirchdorf: hydraulic cylinders

Monterrey: large diameter bearings

Many Years of ExperienceLiebherr has decades of experience in the manufacture of high-quality components used in cranes and construc-tion machines, in the mining industry, maritime applica-tions, wind turbines, in vehicle technology or in aerospace and transportation technology.

The Right Solution for Every NeedA high degree of vertical integration and the use of flexi-ble, state-of-the-art production systems allow Liebherr to offer its customers tailor-made solutions. Liebherr is your partner for joint success – from the product idea to devel-opment, manufacture and first installation right through to series production. For the various components of the drivetrain, Liebherr also offers remanufacturing in various degrees in a dedicated factory.

System Solutions from a Single SourceComponents from Liebherr are perfectly matched to each other with regard to operation. Depending on the require-ment, individual components from the wide product range can be expanded through to the complete drivetrain. This results in impressive system solutions which can be inte-grated into a variety of applications.

Highest Quality Standards and Long Service Life All components meet the very highest demands for func-tional reliability and durability, even under extreme loads and harsh conditions. Elaborate quality management and extensive analysis and test procedures are practised throughout the entire development and production process, guaranteeing reliability and long component service life.

www.liebherr.com

Dalian: gearboxes

Liebherr-Components AGPostbox 222, CH-5415 Nussbaumen / AG +41 (0)56 296 43 00, Fax +41 (0)56 296 43 01www.liebherr.com, E-Mail: [email protected]

Prin

ted

in G

erm

any

BK

LM

B 1

1005

235-

3.31

-04.

2013

_enG

B

Sub

ject

to

tech

nica

l mod

ifica

tions

.

BP Axialkolbenpumpen EnGB Screen

Documents

Transcript of BP Axialkolbenpumpen EnGB Screen