© MAN Diesel A/S
S40ME-B
Lennart Wahl
© MAN Diesel A/S
Agenda
Day 1 Day 2
09:30 -- 10:15 Introduction to
ME-B engine
MOP,
PMI & EDS
10:30 – 11:30 Hydraulic Power
Supply
Service
Experience
11:30 – 12:30 Lunch Lunch
12:30 – 13:30 Hydraulic
Cylinder Unit
BMS
13:30 – 14:30 Engine Control
System
BMS
14:45 – 15:30 Electrical
connection
BMS
© MAN Diesel A/S
Small Bore MAN B&W Two-stroke Engines
OZS/2200/20061122
S35ME-B
S40ME-B
S50ME-B
© MAN Diesel A/S
MAN B&W Two-stroke Engines for
Motor Ships
3334625.2007.01.15 (3000/OG)
Market requirements
Ship Owner: Reliability/AvailabilityLow Operation Cost (MTBO)Lower SFOC and LOCLower Emission and Flexibility against Future LimitsEasy daily operation for crew
Shipyard: Easy Installation and CommissioningCompactnessCompetitive price
Engine Builder: Production CostNo After Sales Cost
Engine Designer: Competitiveness
All requirements have to be met!
© MAN Diesel A/SL/73846-6.5/0106 (3320/MKZ)
The ME Programme
As at January 20061,000 kW
0 10 20 30 40 50 60 70 80 90 100
r/min
L4.L
1
Engine type and
Mark number
90-94 K108ME-C6
90-97 K98ME7
84-94 K98ME6
97-104 K98ME-C7
94-104 K98ME-C6
66-78 S90ME-C8
61-76 S90ME-C7
84-94 K90ME9
94-104 K90ME-C9
89-104 K90ME-C6
66-78 S80ME-C9
66-78 S80ME-C8
57-76 S80ME-C7
94-104 K80ME-C9
89-104 K80ME-C6
77-91S70ME-C8/ME-GI8
68-91S70ME-C7/ME-GI7
91-108 L70ME-C8
91-108 L70ME-C7
81-95S65ME-C8/ME-GI8
89-105S60ME-C8/ME-GI8
79-105S60ME-C7/ME-GI7
105-123 L60ME-C8
105-123 L60ME-C7
108-127 S50ME-C8
95-127 S50ME-C7
99-117 S50ME-B9
95-127 S50ME-B8
124-146 S40ME-B9
142-167 S35ME-B9
© MAN Diesel A/S
ME-B
Engine Programme
L1 point Unit S35ME-B9 S40ME-B9 S50ME-B9 S50ME-B7/8
Cylinder no: 5 - 8 5 - 8 5 - 9 5 - 9
Bore: mm 350 400 500 500
Stroke: mm 1550 1770 2214 2000
Stroke/Bore ratio: 4,43 4,43 4,43 4,00
Speed: r/min 167 146 117 127
Mean piston
speed:m/s 8,63 8,61 8,63 8,50
MEP: bar 21 21 21 19/20
Power: kW/cyl 870 1135 1780 1580/1660
SFOC: g/kWh 176 175 169 170
2200/OZS/2006.11.19
© MAN Diesel A/S
Cost in Relation to Engine Size
3333540.2006.04.10 (2200/OZS)
Cost Index (ref. MC-C)
ME-C
MC-C
Large boreSmall bore
80%
90%
100%
110%
120%
130%
ME-B
© MAN Diesel A/S
3 Engine groups
MC/MC-C:
1. Exhaust valve operated by a camshaft
2. Fuel injection operated by a camshaft
ME-C: ME-B:
1. Electronic controlled exhaust valve Exhaust valve operated by a light camshaft
2. Electronic controlled fuel injection Electronic controlled fuel injection
ECS: Starting air valves ECS: Governor function
Start and Reversing sequences Electronically Profiled Injection (EPIC)
Governor function Hydraulic oil pressure
Auxiliary blowers Alpha Lubricator
Electronically Profiled Injection (EPIC)
Exhaust valve actuation
HPS
Alpha Lubricator
OZS/LES/200708118
© MAN Diesel A/S
ME-B
Main Features
OZS/2200/20060823
The ME-B engines designed with
Electronic fuel injection control
Cam shaft driven exhaust valve
Pressure boosters similar to the ME-C
300 bar hydraulic system
Hydraulic cylinder units serving two cylinders
One gas accumulator on each HCU
Electric driven hydraulic pumps
© MAN Diesel A/S
Small Bore Electronic Injection
Advantage of electronic controlled fuel injection
Injection pressure is independent of engine
speed (RPM)
Rate shape of injection profile
Variable injection timing (VIT)
Optimal SFOC at minimum emission
Easy adjustment of engine parameters
Easy change of operating mode
© MAN Diesel A/S
ME
Fuel Injection System
To drain
Membrane
accumulator
Fuel pump
Fuel oil inlet
8 bar
Suction valve
ELFI proportional
valve
Slide fuel
valve
Fuel pump plunger
Hydraulic piston
High pressure pipe
High pressure hydraulic oil inlet
L/73829-9.0/0303 (2200/OZS)
© MAN Diesel A/S
Injection profiles
2006-12-22
deg a BDC
ba
r a
bs
4T50ME-X: Step-profiles 100% load, fuel-pump pressureMAN B&W Diesel A/S 2006-12-21 21:27
170 180 190 200 2100
100
200
300
400
500
600
700
800
900
1000
ReferenceStep-profile: 10msStep-profile: 13msStep-profile: 17ms
© MAN Diesel A/S
Injection profile variation
Step profiles 100% load 2-valve atomizer, constant Pmax and Pc/Ps
-5
-4
-3
-2
-1
0
1
2
3
4
5
Step 10 ms Step 13 ms Step 17 ms
Variation
g/k
Wh SFOC
Nox
© MAN Diesel A/S
ME-B Electronic Injection
System Layout
OZS/2200/20070126
Pressure boosters
ELFI
ValvesHydraulic oil rail
Camshaft driven
exhaust actuators
Light camshaft
Dual cylinder
HCUHPS
© MAN Diesel A/S
ME-B
Dual Hydraulic Cylinder Unit (HCU)
2200/OZS/20070126
Distributor blockELFI valve
Alpha lubricator
with ACC
Pressure booster
Accumulator
© MAN Diesel A/S
ME-B
Hydraulic Power Supply (HPS)
HPS mounted
in for end
Boll FilterLube oil inlet
© MAN Diesel A/S
ME-B
Layout of Hydraulic Power Supply (HPS)
Electric motor
Hydraulic pump
Lube oil inlet
Hydraulic oil 300 bar
Safety block
© MAN Diesel A/S
ME-B
Layout of High Pressure Pipe
Hydraulic oil rail
from the safety
block to the HCU
300 bar
Safety block
© MAN Diesel A/S
ME-B
Mechanical/Hydraulic Diagram
HCU
HPS
BOLL filter
2200/OZS/20061122
© MAN Diesel A/S
ME-B
ECS
2200/OZS/20070311
CCU 1 - 4
S40ME-B and S50ME-B
Mounting of ECS
S35ME-B
Mounted in engine room
Safety system
24 VDC
Power box
Connecting boxes
© MAN Diesel A/S
Piston
• Bore cooled
• High topland
• Top piston ring, high CPR-type
• All rings Alu-coated
• Skirt with bronze band
Cylinder liner
• Slim type liner, Tarkalloy A
• Piston cleaning ring
Cylinder frame
• Nodular cast iron
or
• Welded with integrated scav. air receiver
Frame box
• Triangular guide plane design
• Twin stay bolts
Bedplate
• Welded bedplate with girder
made from steel plate
Exhaust valve
• Operated by light camshaft
• DuraSpindle
• W-seat
• COL (Controlled oil level)
Hydraulic cylinder unit
• Fuel oil pressure booster
• Integrated Alpha Lubricator
Fuel system
• Two low NOx slide fuel
valves
Connecting Rod
• Slim design
• Low friction guide shoe
Crankshaft
• Semi-built
Bearings
• Thin shell Sn40-Al
ME-B
Design Features
© MAN Diesel A/S
ME-B
Crankshaft
3333564.2006.04.12 (2200/OZS)
Semi-built
Forged steel
Conventional material
© MAN Diesel A/S
ME-B
Bedplate Aft
9999999.2006.08.23 (2210/FLL)
Bedplate mainly made by
plate-supports. Only two
casted supports at the thrust
section.
Journal bearing support
with two draining holes for
better drainage of the
sealing at the aft part of
shaft.
© MAN Diesel A/S
ME-B
Bedplate
Intermediate section with
plate supports welded in the
box structure.
© MAN Diesel A/S
ME-B
Turning gear
Worm gear Planet gear
Mounted on aft side of the bedplate
No cut-out in bedplate and frame box
© MAN Diesel A/S
ME-B
Frame Box
OZS/2200/20061006
Triangular stay bolt tube design
Uniform
higher rigidty
Lower stress
level
No post weld
heat treatment
Ribs substituted by
vertical plates,
forming a triangle:
Lower production
cost
OMD and PCO
sensors mounted on
the manouvering side.
© MAN Diesel A/S
ME-B
Cylinder Frame Executions
3333556.2006.04.11 (2200/OZS)
Welded design with
integrated scavenge
air receiver
Nodular cost iron (KPF)
Bolted on scavenge
air receiver
© MAN Diesel A/S
ME-B
Cylinder Frame
OZS/2200/20061006
Integreated chain
wheel frame
Integrated housing
for the HPS
Material:
Nodular cast iron (KPF)
Mass saving for a 6S40ME-B: 4000kg
© MAN Diesel A/S
ME-B
Connecting Rod
MC design ME-B slim design
Mass reduction 20%
2200/OZS/20061122
© MAN Diesel A/S
ME-B
Crosshead Bearing Design
MC design ME-B slim design
Oil groove in loaded zone No oil grove in loaded zone
DROMEDARY type pressure distributionCAMEL type pressure distribution
Improved oil film thickness
2200/OZS/20061122
© MAN Diesel A/S
ME-B
Low Friction Guide Shoes
Guideplan height / width: 5 3.2
Number of oil quills on guide plan
reduced to one.
Frictional loss reduced with 24%
Heig
ht
© MAN Diesel A/S
ME-B
Combustion Chamber
OZS/2200/20061119
Slide fuel valves
Alpha ACC
High piston topland
Slim cylinder liner
PC-ring
Piston rings with Alu-coating
Piston skirt with bronze band
DuraSpindle
W-seat
Design features
Known to give excellent
cylinder condition and
long TBO
© MAN Diesel A/S
ME-B
Piston
3333569.2006.04.12 (2200/OZS)
High piston crown
Ring pack
like existing engines
Cupper band
© MAN Diesel A/S
ME-B
Exhaust Valve
2200/OZS/20070312
MC/MC-C exhaust valve
reused for the ME-B
W-seat
DuraSpindle
COL system
Damped closing
© MAN Diesel A/S
ME-B Exhaust Valve
Controlled Oil Level (COL)
Sealing ring
Oil reservoir
Safety valve
adjustment 23 bar
New spindle guide
© MAN Diesel A/S
ME-B
Light Camshaft
OZS/2200/20061006
Gear wheel for starting air distributor
Exhaust cam
Chain wheel
© MAN Diesel A/S
ME-B
Light Camshaft
OZS/2200/20061006
Axial bearings
Overhanging
chain wheel
© MAN Diesel A/S
New tightener design
One single chain
Chain guide on tightener side
automatically adjusts position
when tightening the chain
3334304.2006.08.28 (2200/OZS)
ME-B
Chain Drive
© MAN Diesel A/S
ME-B
Chain Drive
Tightener wheel and guide way is
connected and ensures correct
guide way position during chain
tightening.
Chain tightening is applied by
pulling tightener wheel towards
starboard by means of a hydraulic
jack.
New chain
Older chain
Chain Tightener and
Guide Way Adjustment
© MAN Diesel A/S
Thrust Cam with Flex Edge
Flex edge
3334737.2007.02.08 (2200/OZS)
© MAN Diesel A/S
ME-B Thrust bearing
Flex edge on thrust cam
No Flex edge Flex edge
375 bar Max Pressure 165 bar
4 μm Min OFT 19 μm
© MAN Diesel A/S
ME-B
Turbocharger Arrangement Aft
Auxilliary blower housing
integrated in the
air cooler housing
© MAN Diesel A/S
ME-B Manoeuvring System
ME-B manoeuvring
system same as
the MC/MC-C system
except for:
Reversing
Safety stop
Governor actuator
Manuel idx control
2200/OZS/20061122
© MAN Diesel A/S
ME-B Engine Side Console (ESC)
2200/OZS/20070207
© MAN Diesel A/S
ME-B Test bench
2200/OZS/20070214
© MAN Diesel A/S
Small Bore MAN B&W Two-stroke Engines
OZS/2200/20061122
© MAN Diesel A/S
Educational Efforts
Simulators in Operation
3334000.2006.05.10 (2300/SBJ)
© MAN Diesel A/S
ME-B
Thank you for your
attention
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