Device for controlling fuel injection into an inte

专利名称：Device for controlling fuel injection into an

internal combustion engine

发明人：Nobuhiko Koga,Susumu Kojima,Keiso

Takeda,Kosuke Suzui

申请号：US09/370239申请日：19990809公开号：US06065436A公开日：20000523

摘要：A device for controlling fuel injection into an internal combustion engine isdisclosed. The device comprises an accumulator for supplying pressurized fuel to a fuelinjection valve, a high-pressure pump for discharging fuel into the accumulator using theengine as a power source, and a low-pressure pump for discharging fuel into the high-pressure pump using a power source other than the engine. At the start of the engine,the fuel discharged from the low-pressure pump is substantially directly introduced intothe accumulator through a pump chamber of the high- pressure pump. To elevate thepressure within the accumulator for a short period to a fuel pressure capable of injectingfuel at the start of the engine, an opening and closing valve is provided in a suctionpassage that communicates the discharge side of the low- pressure pump with thesuction side of the high-pressure pump, and is maintained to be opened at the start ofthe engine.

申请人：TOYOTA JIDOSHA KABUSHIKI KAISHA

代理机构：Oliff & Berridge, PLC

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