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    • 5. 发明申请
    • INJECTION DEVICE
    • 注射装置
    • US20130119161A1
    • 2013-05-16
    • US13812198
    • 2011-07-18
    • Nestor Rodriguez-AmayaJochen DoehringJuergen HannekeGodehard Nentwig
    • Nestor Rodriguez-AmayaJochen DoehringJuergen HannekeGodehard Nentwig
    • F02M47/06
    • F02M47/06F01N3/2066F01N2610/1453F02M47/025F02M57/027F02M63/0028Y02T10/24
    • The invention relates to an injection device (2), in particular for injecting fluid into an exhaust tract of an internal combustion engine, having a valve unit which comprises a valve needle (6), an injection chamber (38) having at least one injection opening (8), and a control chamber (36), wherein the injection device (2) is designed so that a pressure differential between the injection chamber (38) and the control chamber (36) brings about a displacement of the valve needle (6) between an open position in which the valve needle (6) releases a fluid flow (through the injection opening (8), and a closed position in which the valve needle (6) closes off the injection opening (8). The injection device (2) also has a pump unit integrated in the injection device (2). The pump unit is designed so as to draw in fluid from the fluid inlet (32) during operation and to provide said fluid to the valve unit under increased pressure.
    • 本发明涉及一种注射装置(2),特别是用于将流体注入内燃机的排气道,其具有阀单元,该阀单元包括阀针(6),具有至少一个注射的注射室(38) 开口(8)和控制室(36),其中所述注射装置(2)被设计成使得所述注射室(38)和所述控制室(36)之间的压差导致所述阀针 6)在其中阀针(6)释放流体流(通过注射开口(8))的打开位置和阀针(6)关闭注射开口(8)的关闭位置之间,注射 设备(2)还具有集成在注射装置(2)中的泵单元,泵单元被设计成在操作期间从流体入口(32)吸入流体,并且在增加的压力下将所述流体提供给阀单元 。
    • 7. 发明授权
    • Distributor-type fuel injection pump
    • 分配式燃油喷射泵
    • US06280160B1
    • 2001-08-28
    • US09202928
    • 1999-12-09
    • Heinz NothdurftNestor Rodriguez-AmayaAndreas DuttHubert Greif
    • Heinz NothdurftNestor Rodriguez-AmayaAndreas DuttHubert Greif
    • F04B3900
    • F02M59/466F02M41/1411
    • A fuel injection pump of the distributor type which has a reciprocatingly driven pump piston that is load-bearing in a rotating distributor shaft which pumps fuel out of a pump work chamber to various fuel injection valves via a distributor opening. To control the duration of high-pressure injection, an electrically actuated valve is provided with a valve member in a valve chamber that communicates with the pump work chamber and from a second valve chamber, communicates with a low-pressure region. To terminate the high-pressure injection, the valve member makes a communication between the two valve chambers, whereupon the outflow of the fuel stream is controlled by disposing a diameter constriction in the connecting line, thus reducing any tendency to cavitation.
    • 一种分配器类型的燃料喷射泵,其具有往复驱动的泵活塞,该活塞在旋转的分配器轴中承载,其经由分配器开口将燃料从泵工作室泵出到各种燃料喷射阀。 为了控制高压喷射的持续时间,电动阀在阀室中设置有与泵工作室连通的阀构件,并且与第二阀室连通,与低压区连通。 为了终止高压喷射,阀构件在两个阀室之间进行连通,由此通过在连接管线中设置直径收缩来控制燃料流的流出,从而减少空化的倾向。