Combustion Air System - Man L23/30DF Project Manual

MAN Diesel & Turbo
1665736-1.7
Page 1 (2)
General
Figure 1: Diagram for combustion air system.
Pipe description
M1 Charge air inlet
P2 Exhaust gas outlet:
5 cyl. engine
6+7 cyl. engines
8+9 cyl. engines
P6 Drain from turbocharger - outlet
P8 Water washing compressor side
with quick coupling - inlet
P9 Workin air, dry cleaning turbine
side
with quick coupling - inlet
Table 1: P2 flange connections are standard according to DIN
86 044. Other flange connections are standard according to DIN
2501.
The air intake to the turbochargers takes place
directly from the engine room through the intake
silencer on the turbocharger.
From the turbocharger the air is led via the charge
air cooler and charge air receiver to the inlet valves
of each cylinder.
2015.11.27

Combustion air system

The charge air cooler is a compact two-stage tube-
type cooler with a large cooling surface.
The charge air cooler is mounted in the engine's
front end box.
DN 450
It is recommended to blow ventilation air in the level
DN 500
of the top of the engine(s) close to the air inlet of the
DN 600
turbocharger, but not so close that sea water or
vapour may be drawn in. It is further recommended
3/4"
that there always is a positive air pressure in the
engine room.
Turbocharger
The engine is as standard equipped with a high-effi-
cient MAN Diesel & Turbo TCR turbocharger of the
radial type, which is located on the top of the front
end box.
Cleaning of Turbocharger
The turbocharger is fitted with an arrangement for
dry cleaning of the turbine side, and water washing
of the compressor side.
B 15 00 0
L27/38S, L27/38