FUEL FEEDING SYSTEM FOR INTERNAL COMBUSTION ENGINE Russian patent published in 1997 - IPC

FIELD: engine engineering. SUBSTANCE: fuel feeding system has fuel tank, fuel pump, corse filter and fine filter, high-pressure pump, and nozzle interconnected through pipe lines. Inside the nozzle is sprayer and valve needle which has under-needle and above-needle space connected with the high-pressure compartment of the pump through the delivery pipe line and damping member connected with the pipe line. The means for intensifying injection is made up as filling and check valves interposed between the high-pressure line and above- needle space. The outlet of the filling valve is connected with the above-needle space of the nozzle. The outlet of the check valve is connected with the high- pressure line. EFFECT: improved design. 13 cl, 6 dwg