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    • 6. 发明申请
    • Variable displacement sliding vane pump
    • 可变排量滑片泵
    • US20070224067A1
    • 2007-09-27
    • US11389687
    • 2006-03-27
    • Manfred ArnoldRobert MooyPaul Morton
    • Manfred ArnoldRobert MooyPaul Morton
    • F01C20/18F01C19/00F01C19/02
    • F04C14/226F04C2/344
    • A variable displacement sliding vane pump comprising a pump body, inlet and outlet ports formed in said pump body, a drive shaft rotatably mounted in said pump body, a rotor driven by said drive shaft and co-axially aligned therewith, a plurality of radially extending vanes slidably disposed in said rotor, a pivot disposed in said pump body, a slide pivotally disposed on said pivot in said pump body and having a central axis eccentric to the axis of said rotor, a plurality of fluid chambers defined by said rotor, said vanes, and said slide that are successively connected to said inlet and outlet ports, a spring acting on said slide to urge said slide in one direction, a first chamber and a second chamber, each suitable for receiving a fluid pressure and each disposed between said pump body and an outer surface of said slide, the first chamber in fluid communication with a pump outlet discharge pressure, and a valve operable to selectively pressurize and depressurize the second chamber.
    • 一种可变排量滑动叶片泵,包括泵体,形成在所述泵体中的入口和出口,可旋转地安装在所述泵体中的驱动轴,由所述驱动轴驱动并与其同轴对准的转子,多个径向延伸的 可滑动地设置在所述转子中的叶片,设置在所述泵体内的枢轴,枢转地设置在所述泵体中的所述枢轴上并具有偏心于所述转子的轴线的中心轴线的滑块,由所述转子限定的多个流体室, 叶片和所述滑块,其连续地连接到所述入口和出口,弹簧作用在所述滑块上以沿一个方向推动所述滑块,第一腔室和第二腔室,每个适于接收流体压力,并且每个设置在所述 泵本体和所述滑块的外表面,所述第一腔室与泵出口排出压力流体连通,以及阀,其可操作以选择性地加压和减压所述第二腔室。