MAN B&W Diesel A/S
MAN B&W Diesel A/S
The Electronically Controlled
ME Engine
The Electronically Controlled
ME Engine
Software audit
Software audit
Approval test of
Electronic Control System
Approval test of
Electronic Control System
Quay trial
Quay trial Sea trialSea trial
Development History Development History 2002.05.24 (2440/PCS) Inspection Inspection 8020 hours 8020 hours
ME Engine Programme
ME Engine Programme
MC versus ME Engine
MC versus ME Engine
plus the ME Engine Control System
plus the ME Engine Control System
2002.05.24 (2440/PCS)
MC Engine
The difference
The difference
Removed
Removed from from the the MCMC
2002.05.24 (2440/PCS)
Chain drive for camshaft
Chain drive for camshaft
Camshaft with fuel cams and exhaust cams
Camshaft with fuel cams and exhaust cams
Fuel pump actuating gear
Fuel pump actuating gear
Conventional fuel injection pumps
Conventional fuel injection pumps
Exhaust valve actuating gear and roller guides
Exhaust valve actuating gear and roller guides
Engine driven starting air distributor
Engine driven starting air distributor
Electronic governor with actuator
Electronic governor with actuator
Regulating shaft
Regulating shaft
Engine-side control console
Engine-side control console
Mechanical cylinder lubricators
2002.05.24 (2440/PCS)
Hydraulic power supply unit
Hydraulic power supply unit
Hydraulic cylinder unit
Hydraulic cylinder unit
Electronically controlled starting air valves
Electronically controlled starting air valves
Integrated electronic control of auxiliary blowers
Integrated electronic control of auxiliary blowers
Integrated electronic governor functions
Integrated electronic governor functions
Crankshaft position sensing and tacho system
Crankshaft position sensing and tacho system
Electronically controlled Alpha Lubricators
Electronically controlled Alpha Lubricators
Local Operating Panel
Local Operating Panel
Added
Added to to make it make it an MEan ME
Engine Control System
ME-C Engines
Reduction of weight for ME-C compared to MC-C 6S70MC-C: 555 ton
Calculated reduction 25 ton 6S70ME-C: 530 ton
Mechanical
Mechanical –– Hydraulic System Hydraulic System
Hydraulic Power Supply Hydraulic Power Supply Hydraulic Cylinder Unit Hydraulic Cylinder Unit
Mechanical
Mechanical –– Hydraulic System Hydraulic System
Hydraulic Power Supply Hydraulic Power Supply Hydraulic Cylinder Unit Hydraulic Cylinder Unit
Filter
Filter
Electrically driven pumps
Electrically driven pumps
Safety and accumulator block
Safety and accumulator block
Engine driven pumps
(2440/PCS)
Mechanical
Mechanical –– Hydraulic Hydraulic SystemSystem Hydraulic
Hydraulic Power Supply
Hydraulic Power Supply (HPS) (HPS)
MC
MC
ME
ME
2002.05.24 (2440/PCS)
4T50ME-X; Pumps at fore end
4T50ME-X; Pumps at fore end
Pumps and pump gear drive
Pumps and pump gear drive
7S50ME-C
ME-C Engines
Hydraulic Oil Loop
L/73273-7.0/0902 (2600 /RØL)
200 bar Fuel oil pump
Cyl. 1 Cyl. 2 Cyl. 3
ELVA
Cyl. 5 Cyl. 6
Exhaust valve actuator
Hydraulic cylinder unit Cyl. 4 Alpha lubricator ELFI Return to sump Main lube pump
Fine aut. filter
Engine driven hydraulic pumps
Safety and accumulator blok Fine aut. filter
EL. driven hydraulic pumps Fuel 10 bar From sump Piston cooling + bearings CCU
7S50ME-C Engine Outline
S50ME-C Overview
Port side
Starboard side
Location of gearbox for the 3 hydraulic pumps.
S50ME-C Main inner parts
• Output wheel……….. • Intermediate wheel………… • Connected wheels…………. • Gearwheel on crankshaft….
– Double row of teeth
• Removable distance piece………
• Total ratio: 12:1
(2600/KNB)
Two-Stroke Medium Bore
(2600/KNB) Filter station Step-up Gear Hydraulic pumps 2. Order Moment Compensator shaft Tightening of Guideway arrangement
Two-Stroke Medium Bore
Chain wheel
Studs for hydraulic tightening
Balancer weigths
(2600/KNB)
Guideway Arrangement
Two-Stroke Medium Bore
100 90 80 70 60 50 40 30 20 10
Engine driven pump Example: 7S50ME-C with 3 engine driven pumps 110
1 cylinder cut
2 cylinders cut With cylinder cut-outs: % 56% 100 100 22 57 110 54% 56% 54% Number of pumps in use. Hydraulic pump index.
Available Engine Power on
Available Engine Power on
the Propeller Curve
the Propeller Curve: 7S50ME-C: 7S50ME-C
56% 54% X% 83% 83% 81% 81% 100% 100% 100% 0 (2440/PCS)
100 90 80 70 60 50 40 30 20 10
Engine driven pump Example: 12K98ME-C with 4 engine driven pumps 110
1 cylinder cut
2 cylinders cut With cylinder cut-outs: % 66% 100 100 12 25 45 110 63% 66% 100% 63% 100% Number of pumps in use. Hydraulic pump index.
Available Engine Power on
Available Engine Power on
the Propeller Curve
the Propeller Curve: 12K98ME-C: 12K98ME-C
66% 63% X% 99% 99% 100% 95% 95% 100% 100% 100% 100% 100% 100% 100% (2440/PCS)
Mechanical
Mechanical –– Hydraulic System Hydraulic System
Hydraulic Power Supply Hydraulic Power Supply Hydraulic Cylinder Unit Hydraulic Cylinder Unit Fuel pump Fuel pump ELFI valve ELFI valve Distributor block Distributor block
Exhaust valve actuator
Exhaust valve actuator
ELVA valve
Mechanical
Mechanical –– Hydraulic System Hydraulic System
Hydraulic Cylinder Unit Hydraulic Cylinder Unit
Fuel pump Fuel pump ELFI valve ELFI valve Distributor block Distributor block
Exhaust valve actuator
Exhaust valve actuator
ELVA valve
Fuel injection
Fuel injection Valve actuationValve actuation
Accumulator Distribution Block Fuel Pump
ELFI Proportional Valve
ELVA On/Off Valve Exhaust Valve
Actuator
Hydraulic
Hydraulic Cylinder Unit (HCU)Cylinder Unit (HCU)
Two-Stroke Medium Bore ME – Engine, Design Concept
2600/KNB August 2002.
Fuel Pump – S60ME-C.
Topcover
Plunger
Position sensor (1 per pump)
Umbrella
Main Hydraulic Piston
Two-Stroke Medium Bore ME – Engine, Design Concept
2600/KNB August 2002. Exhaust Actuator S60ME-C. Top cover Minimesh Actuator house Drain hole Actuator Piston Exhaust Valve Actuator Piston Main hydraulic 1. Step 2.Step
Sealing oil control unit
Inductive sensor
Self-adjusting Damper piston Hydraulic nut/ measuring cone Sealing oil control unit
Contactless sensor with integrated electronics
Damper Bushing with new
sealing system W-seat Standard: SNCrW rolled seat Option: Nimonic 80A
S50ME-C cylinder frame
Camshaft housing closed by casting – used as drain compartment.
Intermediate piece with aft-most pair of staybolts.
Hydraulic Cylinder Unit (complete) Hydraulic Cylinder Units mounted on common base plate.
Hydraulic Exhaust Actuator (ELVA)
• Hydraulic exhaust actuator is handled as one unit.
• Easy mounting/dismounting on hydraulic cylinder unit.
• Sealings in accordance with Solas classification rules.
(2600/KNB)
”Common Beam” for mounting of HCU for 6S70ME-C.
The Beam is to mounted on top of extended brackets for ordinary gallery for 6S70MC-C.
Face for HCU.
Two-Stroke Medium Bore
(2600/KNB)
Two-Stroke Medium Bore
(2600/KNB)
Two-Stroke Medium Bore
(2600/KNB)
Fuel Pump Topcover Fuel pump Housing ElFI Valve
”Common” Oil supply for HCU from HPS (Double Wall Pipe) Drain oil Collector is common for the entire row of HCU.
Drain pipe from
collector to crankcase or lub. oil tank
HCU for S70ME-C
mounted on ”Common Beam” (seen from
Fore).
Two-Stroke Medium Bore
(2600/KNB)
Hydraulic Cylinder Units for a 6S70ME-C. Two-Stroke Medium Bore
(2440/PCS)
Mechanical
Mechanical –– Hydraulic Hydraulic SystemSystem Hydraulic
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Controller Main Operating
Panel
Control Network
Engine Control System
Control Network
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
(2440/PCS) Controller Main Operating Panel Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Controller Controller Controller Controller Main Operating Panel Auxiliaries Cylinders Engine Interface Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Controller Controller Controller Controller Main Operating Panel Auxiliaries Cylinders Engine Interface Engine Controller Controller Interface Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Controller Controller Controller Controller Main Operating Panel Auxiliaries Cylinders Engine Interface Engine Controller Controller Interface Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Controller Controller Controller Controller Main Operating Panel Auxiliaries Engine Interface Engine Controller Controller Interface Cylinders Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Controller Controller Controller Controller Main Operating Panel Auxiliaries Engine Interface Engine Controller Controller Interface Cylinders PC Control Room Panel
BACK-UP FOR MOP
Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Controller Controller Controller Controller Main Operating Panel Auxiliaries Engine Interface Engine Controller Controller Interface Cylinders PC Control Room Panel
BACK-UP FOR MOP Bridge
Panel
Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Main Operating
Panel PC
Control Room Panel
BACK-UP FOR MOP Bridge
Panel
ACU CCU
ECU A EICU A
Engine Control Unit A and B Engine Interface Control Unit A and B
ECU B
Cylinders Control Unit 1 per cylinder
EICU B
Auxiliaries Control Unit 1, 2 and 3
Control Network
Engine Control System
(2440/PCS)
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Main Operating
Panel PC
Control Room Panel
BACK-UP FOR MOP Bridge
Panel
ACU CCU
ECU A EICU A
Auxiliaries Control Unit 1, 2 and 3
Engine Interface Control Unit A and B
ECU B
Cylinders Control Unit 1 per cylinder
EICU B
Engine Control Unit A and B
Local Operation
Panel
Control Network
Engine Control System
Engine Control
Engine Control System System
Bridge
Bridge
Engine Control Room
Engine Control Room
Engine Room/On Engine
Engine Room/On Engine
Main Operating
Panel PC
Control Room Panel
BACK-UP FOR MOP Bridge Panel Local Operation Panel Control Network (2440/PCS) MPC MPC MPCMPC MPC MPC MPCMPC MPC MPC MPCMPC
Multi-Multi-Purpose ControllerPurpose Controller
LOP
(2440/PCS)
Configuration of Control
Combustion pressure sensor
Hydraulic Cylinder Unit External sensor
Indicator valve (sketch) Internal sensor with
Combustion pressure sensor
• Pretension parts
• Pressure sensor • Holder for sensor
Basic Electronic System
Basic Electronic System (BES) (BES)
2002.05.24 (2440/PCS)
The aim has been to have a general platform and The aim has been to have a general platform and
framework of validated and well-proven hardware and framework of validated and well-proven hardware and software components allowing for application
software components allowing for application oriented development.
oriented development.
The system should cater for, the development of, a The system should cater for, the development of, a number of more or less well-defined applications number of more or less well-defined applications over the coming years.
over the coming years.
Systems should be built using a minimum number of Systems should be built using a minimum number of identical BES hardware components as building
identical BES hardware components as building blocks.
Basic Electronic System
Basic Electronic System
Hardware
Hardware
2002.05.24 (2440/PCS)
The
The hardware hardware of the Basic Electronic of the Basic Electronic SystemSystem
currently consists of three main components
currently consists of three main components::
•
• The The Multi-Multi-Purpose ControllerPurpose Controller
•
• The Main The Main Operating PanelOperating Panel
•
• The Control The Control Network.Network.
Four secondary Basic Electronic
Four secondary Basic Electronic System hardwareSystem hardware components are also available
components are also available::
•
• Control Control Network Network converterconverter//repeaterrepeater/isolator//isolator/hubhub
•
• TachoTacho Signal Signal AmplifierAmplifier
•
• Amplifier Amplifier for ELFI for ELFI valvevalve
•
(2440/PCS)
Multi-Purpose Controller Mk 2
(2440/PCS) Multi-Purpose Controllers Multi-Purpose Controllers Mk I and Mk II Mk I and Mk II Mk Mk II II Mk Mk I I
Multi-Purpose Controller Complex Controller Input Output Net w or k A B Tach o (0)4-2 0mA +/-1 0V Pote ntio mete r PT10 0 Cont acts (0)4-2 0mA +/-1 0V X V X Other Computer Equipment Power A B Service Channel Serial Communication Power Multi-Purpose Controller (2440/PCS)
Basic Electronic System
Multi-Purpose Controller Software
(2440/PCS) Ne two rk A B X V X Other Computer Equipment Power A B Power Service Terminal Sensor-Actuator API Control Network protocole (Services) Application Functionality Serial Protocole System Clock Alarm handling Parameter handling Variabel handling Multi-Purpose Controller Variable handling protocol
Main Operating Panel
Basic Electronic System
Main Operating Panel Software
(2440/PCS)
Network
A B
Main Operating Panel
Control Network protocole (services) Alarm Handling - Alarm list - Event list - Cut-out lists Detailed alarm info Graphic Application Pictures Parameter back-up Application SW back-up Load of Complex Controllers Input / output
check and test SW configuration display protocol Multi-Purpose Controller Load of
Local Operating Panel (LOP)
7S50ME-C Engine Control Box
7S50ME-C Engine Control Box
Cylinder pr essur e Cylinder pr essur e Fuel pump pr essur e Fuel pump pr essur e Exhaust valve ar ea Exhaust valve ar ea Scavenging por t ar ea Scavenging por t ar ea Start injection Start injection Length injection Length injection Stop
Stop injection injection
Shape of injection
Shape of injection
Start opening exhaust valve
Start opening exhaust valve
Closing exhaust valve
Closing exhaust valve
Length of open exhaust valve
Length of open exhaust valve
Process Flexibility
Test rig
Test rig measurementsmeasurements showing four showing four possibilities of fuel possibilities of fuel injection pattern. injection pattern.
Each example shows
Each example shows
fuel injection pressure
fuel injection pressure
at the fuel valve and
at the fuel valve and
the
the corresponding fuelcorresponding fuel valve spindle lift curve
valve spindle lift curve..
1: Typical Pump Injection
1: Typical Pump Injection
2: Typical Common Rail
2: Typical Common Rail
3: Special 3: Special 4: Special 4: Special Injection Shaping 1 3 4 2 2002.05.05 (2440/PCS)
Bar abs
Engine load %
ME MC
Fuel Injection Pressure
Fuel Injection Pressure –– ME versus MC ME versus MC
Fuel Injection Pressure
Fuel Injection Pressure
Flexibility of the ME Concept L/74336-7.0/0502 (2430/NK) ME-C MC-C 130 50 70 90 110 30 -5 -4-3 -2 -1 0 1 2 3 4 56 140 130 120 100 90 80 70 60 50 40 110 Engine load in % Change NOx in % g/kWh ∆SFOC NOx
Odfjell
Odfjell - - M/T M/T ””Bow CecilBow Cecil”” 37
37,,000 000 dwtdwt Chemical Carrier Chemical Carrier
2002.07.01 (2440/PCS)
Total
-Total - 2002.07.01 - 80202002.07.01 - 8020 hourshours
with electronically controlled engine
with electronically controlled engine
Confirmation Test aboard Bow Cecil
Confirmation Test aboard Bow Cecil
Main Engine: 6L60MC “6L60ME”
Main Engine: 6L60MC “6L60ME”
Confirmation Test
Standard
Standard
fuel
fuel pump pump ME
ME fuel fuel pumppump
M/T
M/T Bow Bow Cecil: Cecil: Hydraulic Hydraulic Cylinder UnitCylinder Unit
Arrangement
Arrangement of HCUof HCU’s ’s forfor the
the ELFI and ELVA System ELFI and ELVA System Arrangement of HPS
Arrangement of HPS atat the fore end
the fore end of the engineof the engine
6L60MC/ME - M/T
6L60MC/ME cam engine
6L60MC/ME cam engine 6L60MC/ME cam-less engine6L60MC/ME cam-less engine
Engine Room of
Before rebuilding Before rebuilding
Turning wheel
Semicircular wheel – marking precisely half the circumference
Tacho gearwheel – 360 teeth
Tacho sensors
Tacho
After
After rebuilding rebuilding
Tacho
Engine Room of
Engine Room of M/T M/T ””Bow Bow CecilCecil””
Fuel Pump
Exhaust Valve Actuator
Accumulators
ELVA On/Off Valve ELFI Proportional Valve
Hydraulic
Hydraulic Cylinder Unit (HCU)Cylinder Unit (HCU)
Inspection o
Inspection onboardnboard Bow Cecil a
Bow Cecil after 4137fter 4137 running hours as
running hours as
ME engine
ME engine
Inspection onboard
Inspection onboard
Bow Cecil after 4137
Bow Cecil after 4137
running hours as
running hours as
ME engine
ME engine
Exhaust Valve Actuator
Exhaust Valve Actuator
Inspection on
Inspection onboardboard Bow Cecil after 4137
Bow Cecil after 4137
running hours as
running hours as
ME engine
ME engine
Exhaust Valve Actuator
Exhaust Valve Actuator
Inspection onboard
Inspection onboard
Bow Cecil after 4137
Bow Cecil after 4137
running hours as
running hours as
ME engine
ME engine
Fuel Pump Plunger and
Fuel Pump Plunger and
Actuator Piston
Actuator Piston
Inspection onboard
Inspection onboard
Bow Cecil after 4137
Bow Cecil after 4137
running hours as
running hours as
ME engine
ME engine
Fuel
Fuel Pump Pump –– Actuator Actuator PistonPiston
Inspection onboard
Inspection onboard
Bow Cecil after 4137
Bow Cecil after 4137
running hours as running hours as ME engine ME engine Pitting Distribution
Inspection onboard
Inspection onboard
Bow Cecil after 4137
Bow Cecil after 4137
running hours as
running hours as
ME engine
ME engine
ELFI and ELVA
Multi-Purpose Controller - ECU
Multi-Purpose Controller - ECU
2002.05.24 (2440/PCS)
Inspection onb
Inspection onboardoard Bow Cecil afte
Bow Cecil afterr41374137 running hours
running hours asas ME engine
Main Operating Panel - HMI
Interview with the daily operators finger touch to trackball
-Interview with the daily operators finger touch to trackball
-Main
Main Operating Panel in ECR - HMI Operating Panel in ECR - HMI
2002.05.24 (2440/PCS)
Inspection onboard
Inspection onboard
Bow Cecil after 4137
Bow Cecil after 4137
running hours as
running hours as
ME engine
•
• Tacho Tacho system, mechanical: system, mechanical: More rigid suspension of theMore rigid suspension of the sensors
sensors aas well as relocation s well as relocation of of same same for better for better accesacces forfor
adjustmentsadjustments of the sensorsof the sensors introducedintroduced..
•
• TachoTacho system, software: at second failure of a system, software: at second failure of a tachotacho set, shift set, shift of
of tachotacho set was not always performed. Software bug in the set was not always performed. Software bug in the low level failure-handling algorithm found and corrected.
low level failure-handling algorithm found and corrected.
•
• A A small small number of bad electrical connections resulting innumber of bad electrical connections resulting in various alarms has occurred. At all instances the
various alarms has occurred. At all instances the redundanciesredundancies
in the system has secured the engine availability. in the system has secured the engine availability.
•
• CCU changed by the crew while engine was still running CCU changed by the crew while engine was still running..
•
• EL ELFIFI valve changed valve changed..
•
• Tacho Tacho sensor drowned by salt water. sensor drowned by salt water.
Service
Service ExperienceExperience
2002.05.05 (2440/PCS)
•
• After 4000 hours in service all moving mechanical parts in the After 4000 hours in service all moving mechanical parts in the hydraulic system showed excellent surfaces.
hydraulic system showed excellent surfaces.
•
• After 4000 hours in service two places with pitting was found on After 4000 hours in service two places with pitting was found on top of the distribution block below the fuel pump actuator piston
top of the distribution block below the fuel pump actuator piston
house. This design will be modified.
Rotating Force Compensator
Rotating Force Compensator
RotComp
RotComp
ME Compensators Concept
ME Compensators Concept
2002.05.24 (2440/PCS)
Linear Force Compensator
Linear Force Compensator
LinComp
LinComp
Prototype and
Prototype and Model of Model of RotCompRotComp
Alpha Lubricator System L/74177-3.0/0402 (2200/OZS) Multi Purpose Controller Hydraulic cylinder unit Cylinder oil service tank
Lube oil pipes Electrical connections Multi Purpose Controller Hydraulic cylinder unit Cylinder liner Cylinder liner Lubr ic at or Lubr ic at or 200 bar system oil To other cylinders Solenoid valve Feedback sensor Feedback sensor Solenoid valve Feedback sensor Lubr ic at or Lubr ic at or
(2600/KNB)
1 * 7S50ME-C Odfjell 37.000 dwt Chemical Carrier Alpha Diesel 2 + 2 * 7S60ME-C Stena 316.000 dwt Crud Oil Tanker HHI
2 * 6S60ME-C Viken Aframax Tanker HSD 2 + (1) * 6S70ME-C Viken 150.000 dwt Suezmax Tanker HSD
Orders
2 + 2 * 5S80ME-C Stena Tanker HHI 6S70ME-C Stena Tanker HHI
2 * 7K98ME-C* Wulff Container HSD/Gdynia 2 * 6S50ME-C ? P.C. Hitachi
Projects
1 * 7S60ME-C* Norgas Carriers Tanker Kina/Korea 1 * 5S60ME-C* Andromeda Tanker Korea
Total 9 + (1) covering ME engine bore range from 50 to 70 bore
1 * 6S70ME-C* ALPHA Tanker Tanker Korea 6S60ME-C Japan 7S50ME-C Japan
Orders and Projects for ME Engines
Orders and Projects for ME Engines
MAN B&W Diesel A/S
MAN B&W Diesel A/S
fuel injection characteristics can be optimised at a large number of loadfuel injection characteristics can be optimised at a large number of load
conditions conditions
Reduced fuel consumption:
Reduced fuel consumption:
constant constant ppmax max in the upper load range can be achieved by a combination of fuelin the upper load range can be achieved by a combination of fuel injection timing and variation of the compression ratio (the latter by variation of the
injection timing and variation of the compression ratio (the latter by variation of the
closing of the exhaust valve). Due to this, the max. pressure can be kept constant
closing of the exhaust valve). Due to this, the max. pressure can be kept constant
over a wider load range without overloading the engine, leading to SFOC
over a wider load range without overloading the engine, leading to SFOC
reductions at part load
reductions at part load
on-line monitoring of the cylinder process on-line monitoring of the cylinder process can can ensures that the load distributionensures that the load distribution among the cylinders and the individual cylinder
among the cylinders and the individual cylinder’’s firing pressure can be kept up tos firing pressure can be kept up to ‘
‘as newas new’’ standard, maintaining the standard, maintaining the ‘‘as newas new’’ performance over the lifetime of the performance over the lifetime of the engine
engine
1 of 3
the enginethe engine’’s crash stop and reverse running performance can be improveds crash stop and reverse running performance can be improved
because the timing of exhaust valves and fuel injection can be optimal for these
because the timing of exhaust valves and fuel injection can be optimal for these
situations too
situations too
Operational safety and flexibility:
Operational safety and flexibility:
‘‘engine brakingengine braking’’ may be obtained, reducing the stopping distance of the vessel may be obtained, reducing the stopping distance of the vessel
Advantages of the ME Engine
faster acceleration of the engine because the scavenge air pressure can befaster acceleration of the engine because the scavenge air pressure can be increased faster than normal by opening the exhaust valve earlier during
increased faster than normal by opening the exhaust valve earlier during
acceleration
acceleration
dead slow running, slow steaming, is improved significantly: the minimum RPM isdead slow running, slow steaming, is improved significantly: the minimum RPM is significantly lower than for a conventional engine, dead slow running is much more
significantly lower than for a conventional engine, dead slow running is much more
regular and combustion is improved due to the electronic control of fuel injection.
regular and combustion is improved due to the electronic control of fuel injection.
Minimum RPM of 12 rpm has been measured for a 6L60MC engine in service
Minimum RPM of 12 rpm has been measured for a 6L60MC engine in service
the engine control system includes our on-line OPS-feature: Overload Protectionthe engine control system includes our on-line OPS-feature: Overload Protection System, which ensures that the engine complies with the load-diagram and is not
System, which ensures that the engine complies with the load-diagram and is not
overloaded (as is often seen in shallow waters and with
overloaded (as is often seen in shallow waters and with ‘‘heavy propellerheavy propeller’’ operation)
operation)
Operational safety and flexibility - continued:
Operational safety and flexibility - continued:
2 of 3
Advantages of the ME Engine
the engine can change over to different the engine can change over to different ‘‘low emission modeslow emission modes’’ where its where its NONOxx exhaust emission can be reduced below the IMO limits if desirable due to
exhaust emission can be reduced below the IMO limits if desirable due to ‘‘locallocal’’ emission regulations. Thus the vessels may sail with lower exhaust gas emission
emission regulations. Thus the vessels may sail with lower exhaust gas emission
within the
within the ‘‘special areasspecial areas’’ where this may be required (or be feasible due to special where this may be required (or be feasible due to special harbour fee schemes) without having negative effects on SFOC outside such
harbour fee schemes) without having negative effects on SFOC outside such
special areas
special areas
Flexibility regarding exhaust gas emissions:
Flexibility regarding exhaust gas emissions:
mode for smokeless slow steaming can be made availablemode for smokeless slow steaming can be made available
adaptation to different fuelsadaptation to different fuels
Others:
Others:
less weight: approximate 3 tons per cylinder for a 60-bore engineless weight: approximate 3 tons per cylinder for a 60-bore engine
adaptation to different operation modeadaptation to different operation mode
computer controlled cylinder lubricator with intermittent lubrication, enables acomputer controlled cylinder lubricator with intermittent lubrication, enables a reduction in lube oil dosage.
reduction in lube oil dosage.
3 of 3
Advantages of the ME Engine
7S50ME-C High Pressure Pipe
L/73145-6.0/0802 (2220/TOV)
High Pressure pipe from accumulator block to hydraulic cylinder units.
S50ME-C Main outer parts
• Gearbox……….
• Hydraulic pumps……….. • Inspection covers………. • Base between gearbox and
bedplate……….
Hydraulic Cylinder Unit
Hydraulic Exhaust Actuator (ELVA) Cover for return oil pipe Return oil stand pipe ELFI valve ELVA valve Plug valve
Hydraulic Cylinder Unit
Fuel Pump (ELFI) Connecting flange
(2600/KNB)
Two-Stroke Medium Bore
(2600/KNB)
Hydraulic Power Supply with integrated 2. Order Momment Compensator.
Chaindrive from Crankshaft to step-up gear.
Chaindrive is adjusted by means of a guideway arrangement.
The guideway arrangement as well as the tensioning of the chain is carried-out by means of hydraulic jacks.
Two-Stroke Medium Bore
(2600/KNB)
Accumulator bloc Filter station
Main pipe for lub. oil Hydraulic pumps Step-up gear
2. Order Moment Compensator shaft Tightening of Guideway arrangement Turning wheel
Crankshaft Two-Stroke Medium Bore
(2600/KNB)
Two-Stroke Medium Bore
(2600/KNB)
Hydraulic Cylinder Unit – Distributor Block.
Exhaust Valve Actuator high pressure supply Fuel Pump
high pressure supply
Main Hydraulic Pressure
Two-Stroke Medium Bore
(2600/KNB)
S70ME-C
Weigth: 777kg
S60ME-C
Weigth: 555kg
Distributor Block Comparison – S70 vs. S60ME-C Two-Stroke Medium Bore
(2600/KNB)
Cylinder Frame for S70ME-C without
integrated housing for camshaft.
Two-Stroke Medium Bore
S50ME-C Fuel pump ELFI
Suction valve Fuel oil inlet
Distributor Block
Bores in Distributor Block
Bores in Distributor Block.
Hydraulic Exhaust Actuator (ELVA)
Oil cylinder – top piece (KPF)
Piston – step 2 (SNitr)
(2 test pistons – tenifer) (S34Cr1)
Oil cylinder – middle piece (KP)
Piston – step 1 (SNitr)
Minimess (x2) Kantseal
Oil cylinder – bottom piece (SNitr) Kantseal (x2)
Hydraulic Exhaust Actuator (ELVA)