MAN B&W S65ME-C8.2-GI-TII User Manual

MAN B&W 1.06
Page 3 of 7
MAN Diesel
198 89 14-5.2MAN B&W 90-50ME-C8-GI TII .2 and higher
Axial Vibration Damper
The engine is fitted with an axial vibration damper,
mounted on the fore end of the crankshaft. The
damper consists of a piston and a splittype hous-
ing located forward of the foremost main bearing.
The piston is made as an integrated collar on the
main crank journal, and the housing is fixed to the
main bearing support.
For functional check of the vibration damper a
mechanical guide is fitted, while an electronic vi-
bration monitor can be supplied as an option.
Tuning Wheel / Torsional Vibration Damper
A tuning wheel or torsional vibration damper may
have to be ordered separately, depending on the
final torsional vibration calculations.
Connecting Rod
The connecting rod is made of forged or cast
steel and provided with bearing caps for the
crosshead and crankpin bearings.
The crosshead and crankpin bearing caps are
secured to the connecting rod with studs and nuts
tightened by means of hydraulic jacks.
The crosshead bearing consists of a set of
thinwalled steel shells, lined with bearing metal.
The crosshead bearing cap is in one piece, with
an angular cutout for the piston rod.
The crankpin bearing is provided with thinwalled
steel shells, lined with bearing metal. Lube oil is
supplied through ducts in the crosshead and con-
necting rod.
Piston
The piston consists of a piston crown and piston
skirt. The piston crown is made of heatresistant
steel. A piston cleaning ring located in the very
top of the cylinder liner scrapes off excessive ash
and carbon formations on the piston topland.
The piston has four ring grooves which are
hardchrome plated on both the upper and lower
surfaces of the grooves. The uppermost piston
ring is of the CPR type (Controlled Pressure Re-
lief), whereas the other three piston rings all have
an oblique cut. The uppermost piston ring is high-
er than the others. All four rings are alu-coated on
the outer surface for running-in.
The piston skirt is made of cast iron with a bronze
band or Mo coating.
Piston Rod
The piston rod is of forged steel and is surface-
hardened on the running surface for the stuffing
box. The piston rod is connected to the crosshead
with four bolts. The piston rod has a central bore
which, in conjunction with a cooling oil pipe, forms
the inlet and outlet for cooling oil.
Crosshead
The crosshead is of forged steel and is provided
with cast steel guide shoes with white metal on
the running surface. The guide shoe is of the low
friction type and crosshead bearings of the wide
pad design.
The telescopic pipe for oil inlet and the pipe for oil
outlet are mounted on the guide shoes.
Scavenge Air System
The air intake to the turbocharger takes place
directly from the engine room through the turbo-
charger intake silencer. From the turbocharger,
the air is led via the charging air pipe, air cooler
and scavenge air receiver to the scavenge ports
of the cylinder liners, see Chapter 14. The scav-
enge air receiver on engines type 65 is of the D-
shape design.

MAN B&W S65ME-C8.2-GI-TII Specifications

General

Brand	MAN B&W
Model	S65ME-C8.2-GI-TII
Category	Engine
Language	English