MAN B&W L28/32H, Руководство пользователя

Страница: 43 / 218

L28/32H
B 10 01 1
1605544-1.5
Page 5 (5)
General Description
coupling, the pump housing is equipped with a
spring-loaded adjustable by-pass valve.
The fuel oil filter is a duplex filter. The filter is
equipped with a three-way cock for single or double
operation of the filters.
Waste oil and fuel oil leakage is led to a leakage
alarm which is heated by means of fuel return oil.
Lubricating Oil System
All moving parts of the engine are lubricated with oil
circulating under pressure in a closed built-on sys-
tem.
The lubricating oil pump is of the gear wheel type with
built-in pressure control valve. The pump takes the
oil from the sump in the base frame, and on the
pressure side the oil passes through the lubricating
oil cooler (plate type) and the filter which both are
mounted on the engine.
Cooling is carried out by the low temperature cooling
water system and the temperature regulating is
made by a termostatic 3-way valve on the oil side.
The engine is as standard equipped with an electri-
cally driven prelubricating pump.
Cooling Water System
The cooling water system consists of a low tempera-
ture system and a high temperature system.
The water in the low temperature system is passed
through the charge air cooler and the lubricating oil
cooler, and the alternator if the latter is water cooled.
The high temperature cooling water system cools
the engine cylinders and the cylinder head. The high
temperature system is always cooled by fresh water.
The low temperature system is normally cooled by
fresh water.
Tools
The engine can be delivered with all necessary tools
for overhaul, for each specific plant, most of the tools
can be arranged on steel plate panels.
96.12