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    • 1. 发明授权
    • Gear pump
    • 齿轮泵
    • US5609474A
    • 1997-03-11
    • US220715
    • 1994-03-31
    • Tohru Ohno
    • Tohru Ohno
    • F04C2/08F04C2/14F04C11/00F04C14/26F04C15/06F04B49/035
    • F04C15/06F04C11/001F04C14/26F04C2/086F04C2/14
    • A gear pump having three gears, including; a pump case consisting of a pump body and a cover for covering most of the body; three gears which are supported by a rotating shaft on the pump case and engaged with each other in series; first and second gear pumps each composed of one central drive gear and one of the driven gears on both sides of the drive gear; a non-return valve and a flow regulation valve which are opened at a predetermined pressure; an inlet port which is opened at one end of the pump case and connected through a feed path to the suction side of the two gear pumps; an outlet port formed on the discharge side of the first gear pump in the pump case; a regulation path passing from the discharge side of the second gear pump through the non-return valve to the outlet port; and a flow regulation path passing from the regulation path through the flow regulation valve to an oil pan.
    • 具有三个齿轮的齿轮泵,包括: 一个由一个泵体和一个盖子组成的泵壳,用于覆盖主体; 三个齿轮,由泵壳上的旋转轴支撑并且彼此串联; 第一和第二齿轮泵,分别由驱动齿轮两侧的一个中心驱动齿轮和一个从动齿轮构成; 以预定压力打开的止回阀和流量调节阀; 入口端口,其在所述泵壳体的一端处开口并且通过进给路径连接到所述两个齿轮泵的吸入侧; 形成在所述泵壳体中的所述第一齿轮泵的排出侧的出口; 从第二齿轮泵的排出侧通过止回阀到出口的调节路径; 以及从调节路径通过流量调节阀到油盘的流量调节路径。