Eddy current Dynamometers - dsgroup.uk.com · Eddy current Dynamometers Eddy Current Brakes...

Eddy current Dynamometers

Eddy Current Brakes Depliant_2015 of 41



Eddy Current Dynamometers from 5 kW to 3200 kW

Apicom Eddy Current Dynamometers for all type of engine load test:

Steady State load test

Transient load test

Endurance test

Quality control test

Test of components

Fuel Consumption test

Research and development test Power: from 5 kW to 3200 kW Torque: from 17 Nm to 20.000 Nm Speed measurement accuracy: ± 1rpm Torque measurement accuracy: 0,2 % F.S. Options Accessories

Water filter

Certificated Calibration Arm

Calibration weights

G.A.P. – Electropneumatic Starting Device

Stall Torque Device (Dcs)

Special Spindle Rotor Bearings (for High Speed Tests)

Thermocouples for spindle rotor bearings



Single Rotor Dynamometer

Extent of supply

Eddy current dynamometer with trunnion supports, is fitted on to the main base. The whole unit is supported by a machined base to be fixed to the floor.

Dynamometer shaft rotation direction: reversible.

Dynamometer shaft and trunnion bearings : are grease lubricated.

All our dynamometers are fitted with two shaft outputs, each with a flange to connect the engine to be tested.

Sealed electronic load cell installed between brake carcass and base.

Pick-up to detect the engine speed (with toothed wheel, 60 teeth).

Calibration system consisting of two arms, standard length of calibration arms for torque measurement: in Nm.

Closed water supply system, to be connected to the main water system .

Safeties on the cooling system:

PT100 thermal resistances

Differential pressure switch

Electric box with multicore cable and connectors (standard length 10 metres),

Shaft guard for engine –dynamometer drive shaft (not included in the standard supply of the dynamometer: supplied with the drive shaft, or at customer request, with additional cost).

The standard colour is RAL 7032 for the dyno, RAL 2004 for guards. On request of customer are possible all colours.

At the customer request, dynamometer can be painted a different colour-

Final test, at our test cell, with engine.

Double Rotor Dynamometer

Triple Rotor Dynamometer

Quadri Rotor Dynamometer



EDDY CURRENT BRAKE CONTROLLER

MP 2030 This unit is used to control the Eddy Current dynos in several operating modes: %: Constant current n = K: Constant speed M = k: Constant torque Accuracy: > 0.2 % Both manual and host controlled operation are possible.

SINGLE-ROTOR

FEEDING TENSION: 220 VAC

FREQUENCY: 50 Hz

ABSORBED POWER: 2.8 kVA

OUTPUT TENSION MAX :

300 VDC (MAX)

OUTPUT CURRENTMAX :

10 A (MAX)

BI-ROTOR

FEEDING TENSION: 220 VAC

FREQUENCY: 50 Hz

ABSORBED POWER: 4,6 kVA


380 VDC (MAX)

OUTPUT CURRENTMAX :

20 A (MAX)

TRI-ROTOR

FEEDING TENSION: 380 VAC 3P+N

FREQUENCY: 50 Hz

ABSORBED POWER: 7,9 kVA


660 VDC (MAX)

OUTPUT CURRENTMAX :

30 A (MAX)



DIGITAL CONTROL MODULES FOR ACCELERATORS THROTTLE CONTROLLER

MP 2020 This unit is used to control our range of throttle actuators in several operating modes: a = Position n = K : Constant Speed M = K: Constant Speed Depending on the mechanical unit, the following performance are available: Speed: 50 – 2600 mm/s Force: 46 – 1500 N Travel: 20 – 100 mm Accuracy: > 0.2 %

The device is composed of these elements: Control unit (MP 2002) : It is a device equipped with a micro controller and own firmware. Its task is to communicate with the supervision PC . This PC can be connected using a mixed digital/analogue interface. This unit coordinates the operation of the power unit, manages the adjusting loops to enable speed or torque controls of the units connected. This units receives from the dyno and process the following data:

Engine rpm

Dyno Torque

Throttle position

These information are available to the PC supervisor interface through proper analogue signals.



THROTTLE ACTUATORS

SAW

It is composed by a group of mechanical actuation and includes a linear d.c. servo motor for optimum dynamic performances. To allow a quick and easy calibration of throttle actuator stroke, the mechanical unit includes two pushbuttons which are used to increase and decrease the throttle opening (from Idle to WOT and back). In this way the operator can easily meet the appropriate travel of the engine in few minutes. The main characteristics of the mechanical unit are: Max. force 170 N Permanent force 46 N Max. stroke 100 mm Max. acceleration 268 m/s² Max. speed 2.6 m/s Positioning repeatability ± 0.1 mm Linearity ± 0.4 %

SAR Consists of a group of mechanics and implementation includes a brushless AC servo rotary with excellent dynamic performance . The main characteristics of the mechanical unit are: Pull-in torque 22 Nm Continuous torque 9,1 Nm Operational angle <=90° Toll. ±0,5° Peak speed 0,3/90° sec (625 rpm) Positioning accuracy ± 0,75 min di arco Absolute accuracy 1/4096 rev.



ELECTRO-PNEUMATIC STARTING DEVICES

GAP Electro-pneumatic starting devices This optional unit can be installed, on request, on most of our Eddy Current dynamomters. It consists of an electric motor coupled to the brake shaft and its electronic unit in order to start the engine being tested.

Type Start Speed

Nominal Torque

Peak Torque

Power

min -1 Nm Nm kW

60/110 440 64 120 3

80/150 460 85 120 4

80/180 460 85 235 4

210/250 340 210 490 8,3

260/500 340 260 490 9,2

300/500 340 309 490 11



SINGLE ROTOR DYNAMOMETER

Dyno Model Power Torque Rev.Max Inertia Mom.

kW Nm rpm Kg m2

FR 6 5 17 15.000 0,002

FR 25 20 120 15.000 0,020

FR 50 40 150 15.000 0,020

FR 100 75 450 13.000 0,050

FR 150 110 450 13.000 0,050

FR 250 190 800 12.000 0,150

FR 400 290 2.000 9.000 0,600

FR 700 500 3.500 5.500 3,000



OVERALL DIMENSIONS OF FR SERIES



FR 6



FR 25



FR 50



FR 100



FR 150



FR 250



FR 400



FR 700



DOUBLE ROTOR DYNAMOMETER

Dyno Model Power Torque Max. Rev. Mom. of Inertia.

kW Nm rpm Kg m2

FR 300 BRV 230 500 13.000 0,100

FR 500 BRV 380 800 12.000 0,290

FR 500 BRVS 380 600 12.000 0,100

FR 800 BRV 580 1.800 9.000 0,900

FR 300 BRP 230 900 12.000 0,100

FR 500 BRP 380 1.600 9.000 0,300

FR 800 BRP 580 4.000 7.000 1,100

FR 1400 BRP 1000 7.000 3.500 5,500



OVERALL DIMENSIONS OF FR BR SERIES



FR 300 BRV



FR 500 BRV



FR 500 BRVS



FR 800 BRV



FR 300 BRP



FR 800 BRV



FR 300 BRP



FR 500 BRP



FR 800 BRP



FR 1400 BRP



TRIPLE ROTOR DYNAMOMETER


kW Nm rpm Kg m2

FR 900 TRVS 660 1200 15.000 0,250

FR 1200 TRV 870 2.000 9.000 1,500

FR 1200 TRP 870 6.000 6.500 1,700

FR 2000 TRP 1500 10.500 3.500 8,100

FR 3400 TRP 2500 15.000 3.500 23,000



OVERALL DIMENSIONS OF FR TR SERIES



FR 900 TRVS



FR 1200 TRV



FR 1200 TRP



FR 2000 TRP



FR 3400 TRP



QUADRI ROTOR DYNAMOMETER


kW Nm rpm Kg m2

FR 1000 LOV 760 700 20.000 0,300

FR 4500 QRP 3200 20.000 2.500 33,600



OVERALL DIMENSIONS OF FR QR SERIES



FR 1000 LOV



FR 4500 QRP



WATER FLOW AND PRESSURE

MAGNETIC FILTER WITH DIRTY INDICATOR

WATER IN

WATER

OUT

Diagram of the water flow and pressure for each dyno

This is the formula to calculate the necessary water to remove heat in the eddy current dyno:

(0,86) x (kW) Q = —————— Where:

T

Q = Water flow rate (m3/h) calculated with T 25°C kW = Max. power to be removed

T = Temperature drop between dyno water inlet and outlet: range 23÷27°C

Maximum temperature, water inlet 30°C (± 2)

Maximum temperature, water outlet 60°C (0 -2)

Max dyno inlet pressure: 3 bar

PI= dyno inlet pressure

PU= dyno outlet pressure before orifice

PV= dyno outlet pressure after orifice

P= load drop through the dyno (PI-PU)

D= Pressure differential before and after the orifice

Differential Pressure switch 702.02.100

CALIBRATED ORIFICE



Brake Q Pressure in bar (1 bar = 100 Kpa) ø racc.

(m3/h) (l/min) PI PU PV* P D

FR 6 0,2 3,3 G 1/4” FR 25 0,7 11,6 0,20 0,15 0 0,05 0,15 G 3/4” FR 50 1,4 23,3 0,64 0,50 0 0,14 0,5 G 3/4” FR 100 2,6 43 0,38 0,20 0 0,18 0,2 G 1” FR 150 3,8 63 0,74 0,40 0 0,34 0,4 G 1” FR 250 6,5 100 0,72 0,30 0 0,42 0,3 G 1“¼ FR 400 10 166 0,86 0,30 0 0,56 0,3 G 1“½ FR 700 17 283 0,95 0,30 0 0,65 0,3 G 2“

FR 300 BRV 8 133 0,84 0,30 0 0,54 0,3 G 1“½ FR 300 BRP 8 133 0,84 0,30 0 0,54 0,3 G 1“½ FR 500 BRV 13 216 0,75 0,30 0 0,45 0,3 G 2” FR 500 BRVS 13 216 0,75 0,30 0 0,45 0,3 G 2” FR 500 BRP 13 216 0,75 0,30 0 0,45 0,3 G 2” FR 800 BRV 20 333 1,03 0,30 0 0,77 0,3 G 2” FR 800 BRP 20 333 1,03 0,30 0 0,77 0,3 G 2” FR 900 TRVS 28,4 473 1,7 1 0 0,77 0,3 G 2”1/2 FR 1000 LOV 37,5 625 1,4 0,3 0 1,1 0,3 G 2”1/2 FR 1200 TRV 30 500 1,07 0,30 0 0,77 0,3 G 2”½ FR 1200 TRP 30 500 1,07 0,30 0 0,77 0,3 G 2”½ FR 1400 BRP 34 566 1,45 0,30 0 1,15 0,3 G 2”½ FR 2000 TRP 51 850 1,28 0,30 0 0,98 0,3 G 3” FR 3400 TRP 110 1833 1,35 0,5 0 0,85 0,5 DN 125 FR 4500 QRP 142 2366 2,05 0,5 0 1,55 0,5 DN 125

PV * : The value of pressure depends from customer plant

APICOM SPA Strada Statale, 20/A

Corporeno di Cento (FE) Tel: +39 051 6835273 Fax: +39 051 6830348

www.api-com.eu [email protected]

Apicom reserves the right to change the specifications described in this catalogue at any time without prior notice.

C-2015_01

http://www.api-com.eu/

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