Yaroslavl Engine Plant YMZ-536, Operation Manual, Page: 105 / 168

105
А Б В Г
Д Е - Е
Fig. 37. Crankcase ventilation system:
1
– cylinder head cover;
2
– two-stage breather;
3
– 1
st
stage swirlers;
4
– 1
st
stage hydraulic lock;
5
– internal cylinder;
6
– external cylinder;
7
– drain pipe; 8 – 2
nd
stage swirlers; 9 – oil sump with a mushroom-shaped
drain valve; 10 – mushroom-shaped drain valve;
11
– diaphragm valve;
12
– cover;
13
– a hole in the cover for the atmospheric pressure;
14
– diaphragm;
15
– cylindrical spring;
16
– central outlet pipe;
Е - Е – gas outlet pipe to the turbocharger suction
From the breather exhaust gases separated from oil are sent to
the turbocharger through the diaphragm valve
11
.