公开(公告)号：US6109540A

公开(公告)日：2000-08-29

申请号：US182372

申请日：1998-10-29

申请人： Dana R. Coldren ,  John D. Manahan ,  Adrian Hsieh

发明人： Dana R. Coldren ,  John D. Manahan ,  Adrian Hsieh

IPC分类号： F02M61/08 ,  F02M61/16 ,  F02M61/18 ,  B29C45/20

CPC分类号： F02M61/168 ,  F02M61/08 ,  F02M61/1806

摘要： A fuel injector comprises an injector body which defines a nozzle chamber that is separated from a plurality of outlet orifices by a conical valve seat. An outwardly opening valve member, which is at least partially positioned in the injector body, includes a closing hydraulic surface exposed to fluid pressure outside the injector body. The valve member is movable between a closed position, in which the conical valve seat is closed, and an open position.

摘要翻译： 燃料喷射器包括喷射器主体，其限定通过锥形阀座与多个出口孔分离的喷嘴室。 至少部分地定位在喷射器主体中的向外打开的阀构件包括暴露于喷射器主体外部的流体压力的关闭液压表面。 阀构件可在闭合位置和锥形阀座关闭的位置与打开位置之间移动。

公开(公告)号：US06390070B2

公开(公告)日：2002-05-21

申请号：US09834070

申请日：2001-04-12

申请人： Dana R. Coldren ,  Charles D. Ellenbecker ,  Phillip J. Houtz ,  Adrian Hsieh

发明人： Dana R. Coldren ,  Charles D. Ellenbecker ,  Phillip J. Houtz ,  Adrian Hsieh

IPC分类号： F02M3704

CPC分类号： F02M47/027 ,  F02M47/043 ,  F02M57/025 ,  F02M59/105

摘要： A fuel injection system includes a plurality of mechanical unit pumps, each of which has a pump outlet. A pressure-intensifying hydraulically-actuated electronically-controlled fuel injector is provided for each of the plurality of mechanical unit pumps. Each of the fuel injectors has a direct control needle valve and an injector body that defines an actuation fluid inlet, a fuel inlet, an actuation fluid cavity and a fuel pressurization chamber. Each fuel injector also includes a moveable pumping element with a large hydraulic surface exposed to fluid pressure in the actuation fluid cavity, and a small hydraulic surface exposed to fluid pressure in the fuel pressurization chamber. An actuation fluid supply line is provided for each of the plurality of mechanical unit pumps. Each supply line has one end connected to one pump outlet and an other end connected to one actuation fluid inlet of an individual fuel injector.

摘要翻译： 燃料喷射系统包括多个机械单元泵，每个泵具有泵出口。 为多个机械单元泵中的每一个提供增压液压致动的电子控制燃料喷射器。 每个燃料喷射器具有直接控制针阀和限定致动流体入口，燃料入口，致动流体腔和燃料加压室的喷射器主体。 每个燃料喷射器还包括具有暴露于致动流体腔中的流体压力的大液压表面的可移动泵送元件和暴露于燃料加压室中的流体压力的小液压表面。 为多个机械单元泵中的每一个提供致动流体供应管线。 每个供应管线的一端连接到一个泵出口，另一端连接到单个燃料喷射器的一个致动流体入口。