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    • 5. 发明授权
    • Compact valve assembly and fuel injector using same
    • 紧凑型阀组件和使用相同的燃油喷射器
    • US06595188B2
    • 2003-07-22
    • US10011465
    • 2001-12-04
    • Glen F. ForckJames J. StreicherDana R. Coldren
    • Glen F. ForckJames J. StreicherDana R. Coldren
    • F02M200
    • F02M63/0064F02M47/027F02M57/025F02M59/466F02M63/0017F02M63/0029F02M63/0049
    • Inclusion of a direct control needle valve in fuel injectors can allow for independent control of injection pressure and timing. Engineers have learned that it is desirable to position the control valve assembly in close proximity to the needle valve member to improve response time. However, by placing the control valve assembly in a central portion of the fuel injector, at least one fluid passage must often be routed through the electrical actuator included in the valve assembly. The present invention seeks to address this problem by providing a direct control valve assembly for a fuel injector that directs fluid around the electrical actuator without increasing the size of the fuel injector. Thus, the present invention includes an electrical actuator having an actuator centerline that is oriented at an angle, which is preferably perpendicular, with respect to a centerline of the fuel injector.
    • 在燃油喷射器中包括直接控制针阀可以独立控制喷射压力和时间。 工程师已经知道,期望将控制阀组件定位在靠近针阀构件以改善响应时间。 然而,通过将控制阀组件放置在燃料喷射器的中心部分中,至少一个流体通道必须经常穿过包括在阀组件中的电致动器。 本发明寻求通过提供用于燃料喷射器的直接控制阀组件来解决这个问题,该组件在不增加燃料喷射器的尺寸的情况下引导围绕电致动器的流体。 因此,本发明包括电致动器,其具有致动器中心线,该致动器中心线相对于燃料喷射器的中心线以一定角度定向,该角度优选为垂直的。
    • 7. 发明授权
    • Dual check fuel injector with single actuator
    • 双重检查燃油喷射器与单个执行器
    • US09506434B2
    • 2016-11-29
    • US13597924
    • 2012-08-29
    • Dana R. Coldren
    • Dana R. Coldren
    • F02M47/02F02M43/04F02M45/08F02M61/04F02M61/18
    • F02M43/04F02M45/086F02M61/045F02M61/1826
    • A fuel injector includes first and second check valve members that open and close first and second nozzle outlet sets, respectively, to inject two fuels that differ in at least one of chemical identity, pressure and molecular state. The first check valve member defines a through passage, includes a closing hydraulic surface exposed to fluid pressure in the first control chamber, and moves into and out of contact with a first seat on an injector body. The second check valve member includes a closing hydraulic surface exposed to fluid pressure in a second control chamber, and moves into and out of contact with a second seat located on the first check valve member. A control valve member is movable between first and second positions that respectively block and allow fluid communication between the first and second control chambers and a drain outlet.
    • 燃料喷射器包括第一和第二止回阀构件,其分别打开和关闭第一和第二喷嘴出口组,以注入在化学特征,压力和分子状态中的至少一个方面不同的两种燃料。 第一止回阀构件限定了通过通道,包括暴露于第一控制室中的流体压力的关闭液压表面,并且进入和离开与喷射器主体上的第一座接触。 第二止回阀构件包括在第二控制室中暴露于流体压力的关闭液压表面,并且移动到位于第一止回阀构件上的第二阀座和与其脱离接触。 控制阀构件可在分别阻塞并允许第一和第二控制室与排水出口之间的流体连通的第一和第二位置之间移动。
    • 10. 发明授权
    • Electronic unit injector with pressure assisted needle control
    • 带压力辅助针控制的电子单元注射器
    • US07455243B2
    • 2008-11-25
    • US10792169
    • 2004-03-03
    • Dana R. ColdrenMingchun DongMichael R. Huffman
    • Dana R. ColdrenMingchun DongMichael R. Huffman
    • F02M47/02F02D1/06
    • F02M57/023F02M47/027F02M59/366F02M2547/008
    • An electronically controlled fuel injector includes a reduced part count and complexity over similar fuel injectors without a substantial reduction in performance capabilities. This is accomplished by using a one-piece needle that is hydraulically balanced and biased toward a closed position with a spring positioned in the needle control chamber. Although subtle, this injector has some ability to control the fuel pressure when the needle valve is opening and closing by adjusting a relative timing of a pressure control valve opening relative to a needle control chamber, using separate electrical actuators. The invention is particularly applicable to fuel injectors that cycle through high and low pressure states during and between injection events, respectively. Cam actuated fuel injectors being particularly well suited.
    • 电子控制的燃料喷射器包括相对于类似的燃料喷射器的减少的部件数目和复杂性,而性能能力没有显着降低。 这是通过使用液压平衡的单件针并且通过设置在针控制室中的弹簧朝向关闭位置偏置来实现的。 虽然微妙,但是通过使用单独的电致动器调节针阀相对于针控制室的压力控制阀开口的相对定时,该喷射器具有一些能力来控制针阀打开和关闭时的燃料压力。 本发明特别适用于在喷射事件期间和之间分别在高压状态和低压状态下循环的燃料喷射器。 凸轮致动燃油喷射器特别适合。