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    Variable stage type carburetor
    21.
    发明授权
    Variable stage type carburetor 失效
    可变级式化油器

    公开(公告)号：US4105720A

    公开(公告)日：1978-08-08

    申请号：US828670

    申请日：1977-08-29

    Applicant: Yukio Hohsho ,  Kimiji Karino ,  Masakichi Momono ,  Yoshishige Oyama ,  Teruo Yamauchi ,  Takao Teranishi

    Inventor： Yukio Hohsho ,  Kimiji Karino ,  Masakichi Momono ,  Yoshishige Oyama ,  Teruo Yamauchi ,  Takao Teranishi

    IPC: F02M7/08 ,  F02M9/10 ,  F02M9/08

    CPC classification number: F02M9/103 ,  F02M7/08 ,  Y10S261/56

    Abstract: A variable stage type carburetor having a throttle valve and a movable venturi vane cooperative with the throttle valve. This carburetor further includes a negative pressure responsive device for forcedly shifting the venturi vane in a direction to be closed, irrespective of an opening of the throttle valve, when the negative pressure in the venturi portion is lowered to less than a given value, and an accelerator pump for additionally supplying fuel to an intake passage commensurate to the opening action of the throttle valve. The accelerator pump is effectively operated when the opening of the throttle valve remains at an angle no more than a given degree, while the negative pressure responsive device is effectively operated, when the opening of the throttle valve is at an angle no less than a given degree.

    Abstract translation: 具有与节流阀协作的节流阀和可动文丘里叶片的可变级型化油器。 该化油器还包括负压响应装置，当文丘里管部分的负压降低到小于给定值时，不管节流阀的打开如何，都能将文氏管叶片沿着待关闭的方向强制移动， 加速器泵，用于向与节流阀的打开动作相称的进气通路附加地供给燃料。 当节流阀的开度保持不大于给定的角度时，加速器泵被有效地操作，同时当压力响应装置被有效地操作时，当节流阀的开度处于不小于给定的角度时 度。

    Carburetor with auxiliary accelerator-pump system
    22.
    发明授权
    Carburetor with auxiliary accelerator-pump system 失效
    化油器辅助加速泵系统

    公开(公告)号：US4076770A

    公开(公告)日：1978-02-28

    申请号：US782347

    申请日：1977-03-29

    Applicant: Haruhiko Saito ,  Michio Morishita

    Inventor： Haruhiko Saito ,  Michio Morishita

    IPC: F02M7/087 ,  F02M7/08

    CPC classification number: F02M7/08

    Abstract: A carburetor with an auxiliary accelerator-pump system including a diaphragm pump. This diaphragm pump includes a fuel chamber and a vacuum chamber which are separated by a spring-loaded diaphragm. The fuel chamber leads by way of a check valve to a fuel reservoir or float bowl in the carburetor and by way of another check valve to a pump jet or nozzle which is open into the intake passage of the carburetor, while the vacuum chamber leads to a vacuum take-off port open into the intake passage downstream of its throttle valve. This fuel chamber is communicated by way of a valve with the fuel reservoir or float bowl, the aforesaid valve being actuated in response to a vacuum prevailing in the intake passage downstream of the throttle valve.

    Abstract translation: 具有辅助加速泵系统的化油器，包括隔膜泵。 该隔膜泵包括由弹簧加载的隔膜分开的燃料室和真空室。 燃料室通过止回阀引导到化油器中的燃料储存器或浮球，并且通过另一止回阀引导到通向化油器进气通道的泵喷嘴或喷嘴，而真空室通向 真空引出口通向其节流阀下游的进气通道。 该燃料室通过具有燃料储存器或浮球的阀连通，上述阀响应于在节流阀下游的进气通道中的真空而被致动。

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