The cooling system is of the combination closed-circuit type employing water as the coolant and relying for operation on forced circulation in the cylinder heads and on the convection of heat in the block. Jacket water is cooled in a special heat exchanger.
Fig. Cooling and warming-up system, 5П2, 8П2, 10П2, П12, П21, П22 and 5П4 diesel engines:1 – exhaust manifold; 2 — valve; 3 — heater; 4 — heater pump; 5 — thermometer; 6 — thermostat; 7 — radiator; 8 — pump; 9 — engine; 10 — cooling of engine; 11 — warming up engine
In the diesel engines of the stationary modification, the circulation of jacket wafer goes on in the following way.
Pump в delivers water through a lube of manifold 1 into the lower jacket of the cylinder head for cooling the hottest parts such as the exhaust passages, combusting chambers and injectors. Hot water leaves the upper jacket and flows into radiator 7 through thermostat 6.… READ THE REST