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    • 5. 发明授权
    • Pico fuel injector valve
    • 微型燃油喷射阀
    • US4951878A
    • 1990-08-28
    • US211202
    • 1988-06-23
    • Gary L. CaseyRobert A. McArthur
    • Gary L. CaseyRobert A. McArthur
    • F02M51/08F02M51/06F02M61/16F02M69/46
    • F02M61/165F02M51/0667F02M61/162F02M61/163F02M69/465F02M2051/08Y10S239/19Y10T137/8085
    • A pico fuel injector valve (10) adapted to be received in an injector socket provided in an air intake manifold (12) of an internal combustion engine having an integral fuel rail (14). The fuel injector valve has a magnetically permeable cylindrical housing (26) having radial inlet ports (24) and an armature guide bore (32). A valve seat member (40) having an outlet port and a valve seat (48) is attached to the end of the cylindrical housing (26) having the guide bore. An orifice plate (56) having a calibrated orifice is disposed in an orifice plate recess (50) provided in the face of the valve seat member (40). A stator (76) disposed in the cylindrical housing has an axially disposed pole member (78) and a radial flange (80) attached to the other end of the cylindrical housing. A solenoid coil is wound directly around the pole member (78). An armature (34) is reciprocally disposed in the guide bore (32) and has a valve element provided on the face adjacent to the valve seat, a single annular seal (90) disposed intermediate the inlet ports (24) and the soleoid coil (86) is the only internal seal of the pico fuel injector valve. Electrical connection to the solenoid coil (86) is made through a pair of electrical terminals (94) extending external to the rear end of the pico fuel injector valve through the stator's radial flange (80).
    • 微型燃料喷射阀(10),其适于容纳在设置在具有整体燃料轨道(14)的内燃机的进气歧管(12)中的喷射器插座中。 燃料喷射阀具有具有径向入口端口(24)和电枢导向孔(32)的导磁柱形壳体(26)。 具有出口和阀座(48)的阀座构件(40)附接到具有导向孔的圆柱形壳体(26)的端部。 具有校准孔的孔板(56)设置在设置在阀座构件(40)的表面上的孔板凹部(50)中。 设置在圆柱形壳体中的定子(76)具有轴向设置的极构件(78)和附接到圆柱形壳体的另一端的径向凸缘(80)。 螺线管线圈直接缠绕在极构件(78)周围。 电枢(34)往复设置在导向孔(32)中并且具有设置在与阀座相邻的表面上的阀元件,设置在入口(24)和球状线圈( 86)是微型燃油喷射阀的唯一内部密封。 与螺线管线圈(86)的电气连接是通过一对电气端子(94)制成的,该端子通过定子的径向凸缘(80)延伸到微型燃料喷射阀的后端外部。