FUEL SYSTEM OF INTERNAL COMBUSTION ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention relates to fuel system equipment. Proposed fuel system of internal combustion engine contains high pressure fuel pump with delivery line, nozzle and drain and relief spaces. Fuel feed control device includes housing with cylindrical chamber and channels connecting chamber with delivery line of fuel pump, nozzle and relief space. Cylindrical chamber accommodates control valve made in form of split resilient ring manufactured of ferromagnetic material and valve drive electromagnet installed with clearance inside ring. One end of ring is rigidly secured on wall of cylindrical chambers, and other end is installed for closing relief channel when electromagnet is energized. Housing of fuel feed control device is furnished device is furnished with ring valve displacement limiter. EFFECT: provision of quick seating of ring valve when electromagnetic is deenergized owing to prevention of sticking of ring valve inner surface to electromagnet. 2 dwg