FIELD: mechanical engineering; engines; fuel system of diesel engine. SUBSTANCE: with engine 1 operating, circulating pump 16 sucks fuel from fuel tank 10 into cooling jacket of engine 1 wherefrom fuel is delivered through fuel injection pump 5 to nozzles 6. Bypass valve 18 maintains normal pressure of fuel delivered into fuel injection pump 5 and provides suction of fuel from fuel tank 10 which makes it possible to dispense with fuel feed pump. EFFECT: simplified design of engine. 1 dwg
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