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    • 5. 发明授权
    • Pump having air valve with integral pilot
    • 泵具有集成飞行员的空气阀
    • US07025578B2
    • 2006-04-11
    • US10431279
    • 2003-05-07
    • Richard Gardner
    • Richard Gardner
    • F01L15/18F04B17/00
    • F04B45/043
    • A pump comprising a valve housing and a spool slidably positioned within the valve housing. The spool has a supply face, a first end face, and a second end face, and is slidable between a first position wherein pressurized supply air is supplied to the supply face and the first end face, the first end face having a greater surface area than the supply face, a second position wherein the supply air is supplied to the supply face and is blocked from both the first and second end faces, and a third position wherein the supply air is supplied to the supply face and the second end face.
    • 泵包括阀壳体和可滑动地定位在阀壳体内的阀芯。 卷轴具有供给面,第一端面和第二端面,并且能够在第一位置和第一端面之间滑动,在第一位置,加压供给空气供应到供给面和第一端面,第一端面具有较大的表面积 与供给面相比,第二位置,其中供应空气被供应到供应面并且被阻止于第一和第二端面;以及第三位置,其中供应空气被供应到供应面和第二端面。