公开(公告)号：US4459959A

公开(公告)日：1984-07-17

申请号：US339347

申请日：1982-01-15

申请人： Tomohiko Terada ,  Hideaki Komada

发明人： Tomohiko Terada ,  Hideaki Komada

IPC分类号： F02M47/00 ,  F02D1/08 ,  F02M47/04 ,  F02M59/10 ,  F02M61/20 ,  F02M39/00

CPC分类号： F02M59/105 ,  F02M47/046

摘要： A fuel injection system includes a booster for intensifying a supply of fuel from a fuel reservoir and a nozzle needle actuator for operating a fuel injector to start and terminate a fuel injection from the latter. The boosted fuel from the booster is fed not only to the fuel injector but to an upper chamber of the nozzle needle actuator which is defined by a piston. A first hydraulic circuit produces a variable hydraulic fluid pressure for operating the booster in accordance with a predetermined engine operating parameter. A lower chamber also defined by the piston in the nozzle needle actuator is selectively communicated to the first hydraulic circuit by a second hydraulic circuit. The first and second hydraulic circuits share a common source of hydraulic fluid supply which is independent of the fuel reservoir.

摘要翻译： 燃料喷射系统包括用于加强来自燃料储存器的燃料供应的增压器和用于操作燃料喷射器的喷嘴针致动器，以从燃料喷射器启动和终止燃料喷射。 来自增压器的增压燃料不仅被供给到燃料喷射器，而且被送入由活塞限定的喷嘴针致动器的上腔室。 第一液压回路根据预定的发动机操作参数产生可变液压流体压力，用于操作升压器。 也由喷嘴针致动器中的活塞限定的下腔室通过第二液压回路选择性地连通到第一液压回路。 第一和第二液压回路共享独立于燃油箱的液压油供应​​的共同来源。

公开(公告)号：US4440132A

公开(公告)日：1984-04-03

申请号：US341041

申请日：1982-01-19

申请人： Tomohiko Terada ,  Hideaki Komada

发明人： Tomohiko Terada ,  Hideaki Komada

IPC分类号： F02M61/20 ,  F02D1/08 ,  F02M47/00 ,  F02M47/02 ,  F02M47/04 ,  F02M59/10 ,  F02M57/02 ,  F02M39/00

CPC分类号： F02M47/04 ,  F02M47/027 ,  F02M59/105

摘要： A fuel injection system has a fuel supply line which extends from a fuel reservoir to a fuel injector through a booster and is hydraulically isolated from a hydraulic circuit for operating the booster and a hydraulic circuit for operating a nozzle needle actuator, which is operatively associated with the fuel injector to control fuel injection. The two hydraulic circuits share a common source of hydraulic fluid supply which is independent of the fuel reservoir and adapted to actuate general hydraulic units. An electronically operated pressure control valve is controlled by a control unit to drive the booster with a hydraulic fluid pressure which varies in proportion to a varying engine load, i.e. full load, partial load and no load.

摘要翻译： 燃料喷射系统具有燃料供应管线，燃料供应管线通过助燃器从燃料储存器延伸到燃料喷射器，并且与用于操作助力器的液压回路液压隔离，以及用于操作喷嘴针致动器的液压回路，该液压回路可操作地与 燃油喷射器控制燃油喷射。 两个液压回路共享一个液压油供应​​的共同来源，它独立于燃油箱并适于致动一般的液压单元。 电子操作的压力控制阀由控制单元控制，以与发动机负载变化（即满载，部分负载和无负载）成比例地变化的液压流体压力驱动助力器。