Man B&W S80ME-C7 User Manual

MAN B&W 8.02
Page  of 2
MAN Diesel
MAN B&W ME/ME-C/ME-GI engines 198 42 31-6.1
Hydraulic Power Supply Unit
Internally on the engine RU is connected to the
Hydraulic Power Supply unit (HPS) which supplies
the hydraulic oil to the Hydraulic Cylinder Units
(HCUs). The HPS unit can be either mounted onto
the engine and engine driven (EoD 4 40 60) or
delivered separately electrically driven, option 4
40 660. See gs. 6.0.02 and 6.0.03 respec-
tively.
The hydraulic power supply unit shown in Fig.
8.02.0, consists of:
• an automatic main lter with a redundance lter,
in parallel
• two electrically driven pumps
• three engine driven pumps
• an safety and accumulator block
RW is the oil outlet from the automatic backush-
ing lter.
At start one of the two electrically driven startup
pumps is activated, and it is stopped as soon as
the three engine driven pumps have taken over
the hydraulic oil supply.
The hydraulic oil is supplied to the Hydraulic Cyl-
inder Units (HCU) located at each cylinder, where
it is diverted to the electronic Fuel Injection sys-
tem, and to the electronic exhaust Valve Activa-
tion (FIVA) system, which perform the fuel injec-
tion and opens the exhaust valve. The exhaust
valve is closed by the conventional ‘air spring’.
The electronic signals to the FIVA valves are given
by the Engine Control System, see Chapter 6,
Engine Control System (ECS).
The Hydraulic power supply is available
in 2 versions
The standard version, EoD 4 40 660, is the clas-
sic ME power supply where the hydraulic power
is generated by engine driven pumps and start up
pressure is created by electric driven start pumps.
The capacity of the start up pumps is only suf-
cient to make the start up pressure. The engine
can not run with the engine driven pumps out of
operation.
The optional version, EoD 4 40 66 is similar to
the standard version, but the electric driven start
up pumps have a capacity sufcient to give Take
Home power at least 5% engine power. The
electric power consumption should be taken into
consideration in the specication of the auxilliary
machinery capacity.

Man B&W S80ME-C7 Specifications

General

Brand	Man
Model	B&W S80ME-C7
Category	Engine
Language	English