DIESEL ENGINE FUEL FEED SYSTEM Russian patent published in 2008 - IPC F02M43/00 

FIELD: mechanical engineering; diesel engines.

SUBSTANCE: invention relates to fuel systems of diesel engine. Proposed fuel system contains high-pressure fuel pump, delivery valve, make up main line and check valve. Pump is connected with nozzle through delivery valve and high-pressure pipeline. Check valve is arranged between high-pressure pipeline and nozzle and it contains several make up main lines. Check valve body has central hole with sealing conical surfaces at ends. Tube made of elastic material is tightly fitted inside central hole, inner diameter of tube being equal to inner diameter of high pressure pipeline, and said tube is hermetically fastened on check valve body from side of high pressure pipeline. Support valve with central hole is installed from side of nozzle. Said shutoff valve serves to lock grooves in sealing conical surface through elastic member. Check valve body is provided with rows of radial capillary holes, each being connected with make up main line by adapter. Each row occupies in circumferential direction an angular sector which does not intersect with adjacent sector.

EFFECT: improved design of fuel feed system, possibility of simultaneous feeding of different kind fuels.

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