INTERNAL COMBUSTION ENGINE FUEL INJECTION SYSTEM Russian patent published in 2002 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: invention relates to fuel delivery control systems. Said fuel injection system has air choke mechanically coupled with accelerator pedal and fuel reservoir containing fuel under pressure, electromagnetic fuel valve, fuel meter, all connected by pipeline, engine intake manifold and meter and electromagnetic fuel valve electronic control unit electrically connected with engine crankshaft rotation cycle pickup. According to invention, outlet of electromagnetic fuel valve is connected by pipeline with fuel meter inlet. Electronic control unit is provided with comparator whose outlet is electrically coupled with electromagnetic fuel valve, and signal XI from pickup of fuel pressure at outlet of electromagnetic fuel valve and signal X2 from device evaluating cyclic delivery of fuel, for instance, from pickup of pressure in engine intake manifold, are supplied to two inlets of comparator. EFFECT: increased accuracy of fuel metering by changing pressure at meter inlet depending on change of required fuel rate. 2 cl, 1 dwg