Internal Cooling Water System - Man L23/30DF Project Manual

MAN Diesel & Turbo
3700203-1.0

Internal cooling water system

B 13 00 6
Page 2 (2)
L27/38S, L27/38
High temperature circuit
The built-on engine-driven HT-circulating pump of
the centrifugal type pumps water through the first
stage of the charge air cooler and then through the
distributing bore to the bottom of the cooling water
guide jacket. The water is led out through bores at
the top of the cooling water guide jacket to the bore
cooled cylinder head for cooling of this, the exhaust
valve seats and the injector valve.
From the cylinder heads the water is led through an
integrated collector to the thermostatic valve, and
depending on the engine load, a smaller or larger
amount of the water will be led to the external sys-
tem or will be re-circulated.
Data
D 10
For heat dissipation and pump capacities, see
05 0, "List of Capacities".
Set points and operating levels for temperature and
B 19 00 0, "Operating Data
pressure are stated in
and Set Points".
Other design data are stated in B 13 00 0, "Design
Data for the External Cooling Water System".
2015.04.23 - Tier II - two string