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    Variable Radial Fluid Devices in Series
    2.
    发明公开
    Variable Radial Fluid Devices in Series 有权
    可变径向系列液体的装置

    公开(公告)号：EP2679819A1

    公开(公告)日：2014-01-01

    申请号：EP12186641.2

    申请日：2012-09-28

    申请人： Bell Helicopter Textron Inc.

    发明人： Fenny, Carlos A. ,  Sobel, James E.

    IPC分类号： F04B9/04 ,  F04B19/02 ,  F04B23/06 ,  F04B49/00

    CPC分类号： F04B49/005 ,  F04B1/1077 ,  F04B9/042 ,  F04B19/02 ,  F04B23/06

    摘要： According to one embodiment, a radial fluid device (300) comprises a cylinder block (320), a first plurality of pistons (340a-340f), a second plurality of pistons (340a'-340f', a first cam (330), a second cam (330'), and a coupling device. Each of the first plurality of pistons (340a-340f) are slidably received within a different one of a first plurality of radially extending cylinders. Each of the second plurality of pistons (340a'-340f') are slidably received within a different one of a second plurality of radially extending cylinders. The first cam (330) is disposed about the first plurality of radially extending cylinders. The second cam (330') is disposed about the second plurality of radially extending cylinders. The coupling device is operable to couple the cylinder block to a cylinder block of a second radial fluid device.

    Variable displacement radial piston pump
    4.
    发明公开
    Variable displacement radial piston pump 有权
    Radialkolbenpumpe mit variablerVerdrängung

    公开(公告)号：EP1686263A1

    公开(公告)日：2006-08-02

    申请号：EP05027394.5

    申请日：2005-12-14

    申请人： Eaton Corporation

    发明人： Hansen, Lowell Dean

    IPC分类号： F04B1/107 ,  F04B9/04 ,  F04B49/12

    CPC分类号： F04B1/1071 ,  F04B1/07 ,  F04B1/1077

    摘要： A radial pump (10) has a housing (12) with a cylinder ring (30) is pivotally mounted therein. The cylinder ring has a circular aperture within which a cam surface (42) is formed. A cylinder block (44) rotates within the cylinder ring aperture and has a plurality of radially extending cylinders (46) each having port which selectively communicates with a fluid inlet and a fluid outlet as the cylinder block (44) rotates. A plurality of pistons (48) is slideably received within the plurality of cylinders (46) and engages the cam surface (42). An actuator (33) operably coupled to produce movement of the cylinder ring (30), which alters the spatial relationship between the cylinder ring and the cylinder block (44) to vary the amount that the pistons (48) move within the cylinders (46). The amount of movement of the pistons within the cylinders is directly related to the magnitude of fluid flow delivered by the pump (10) and moving the cylinder ring (30) thereby controls the fluid flow. Rotation of the bearing ring (40) produces less torsional drag (parasitic horsepower loss) than the sliding motion of the pistons (48) on a stationary ring, which allows for increasing speed of operation and less performance losses.

    摘要翻译： 径向泵（10）具有壳体（12），其中可枢转地安装有气缸环（30）。 气缸环具有圆形孔，其中形成有凸轮表面（42）。 气缸体（44）在气缸环孔内旋转并且具有多个径向延伸的气缸（46），每个气缸具有当气缸体（44）旋转时选择性地与流体入口和流体出口连通的端口。 多个活塞（48）可滑动地容纳在多个气缸（46）内并接合凸轮表面（42）。 可操作地联接以产生气缸环（30）的运动的致动器（33），其改变气缸环和气缸体（44）之间的空间关系，以改变活塞（48）在气缸（46）内移动的量 ）。 活塞在气缸内的移动量与由泵（10）输送的流体流动的大小直接相关，并且移动气缸环（30）从而控制流体流动。 与静止环上的活塞（48）的滑动运动相比，轴承环（40）的旋转产生较少的扭转阻力（寄生马力损耗），这允许增加运行速度和较少的性能损失。