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    • 2. 发明公开
    • Pressure gradient controlled rotary hydraulic machine
    • Hydraulische Rotationsmaschine mit kontrollierbar ausgeglichenem Druckfeld。
    • EP0029356A1
    • 1981-05-27
    • EP80304096.3
    • 1980-11-14
    • GENERAL SIGNAL CORPORATION
    • Bowden, Charles John
    • F04C2/18F04C15/00
    • F04C15/0042F04C2/086
    • A pressure gradient controlled rotary hydraulic machine (10) includes a housing (11) having a low pressure port (4) on one side, a high pressure port (3) on the opposite side, and a pair of meshed gears (14,15) rotatably mounted in the housing between the two ports. A pressure gradient control is provided for regulating the pressure differential across a portion of the gears, the pressure gradient control comprising a fluid passageway (24) adjacent the teeth (30) of the gears (14, 15), spaced from both the high pressure and low pressure ports, isolated from direct fluid communication with the two ports, and in fluid communication with the interdental spaces of the gears. The fluid passageway (24) may be provided for in the housing of the machine or, preferably, in a pair of wear plates (20) that are disposed at opposite end faces of the gears (14,15). The preferred fluid passageway (24) is formed by a chamfer adjacent to the tips of the gear teeth (30) along the peripheral portion of the wear plate (20).
    • 压力梯度控制旋转液压机(10)包括:壳体(11),其一侧具有低压口(4),在相对侧的高压口(3)和一对啮合齿轮(14,15) )可旋转地安装在两个端口之间的壳体中。 提供压力梯度控制以调节齿轮的一部分上的压力差,压力梯度控制包括与齿轮(14,15)的齿(30)相邻的流体通道(24),两者都与高压 和低压端口,与两个端口的直接流体连通隔离,并且与齿轮的齿间空间流体连通。 流体通道(24)可以设置在机器的壳体中,或者优选地设置在设置在齿轮(14,15)的相对端面处的一对耐磨板(20)中。 优选的流体通道(24)通过沿着耐磨板(20)的周边部分与齿轮齿(30)的尖端相邻的倒角形成。
    • 3. 发明公开
    • Mechanical detent
    • Mechanische Feststellvorrichtung。
    • EP0247498A1
    • 1987-12-02
    • EP87107261.7
    • 1987-05-19
    • GENERAL SIGNAL CORPORATION
    • Bowden, Charles John
    • F16K35/00
    • G05G5/06F16K31/56Y10T74/2066
    • A mechanical detent for engaging a valve spool having a linear element wire spring positioned transverse to the valve spool for engaging circumferential grooves in the spool. The linear element spring includes a single wire spring having a triangular or square shape, or alternatively, one or more non-­integral straight wire springs. Extensions of the linear element spring extend a distance away from the spool that is greater than the spring wire diameter. The extensions allow the spring to be movable out of the groove, while still per­mitting a small diameter spring wire.
    • 用于接合阀芯的机械制动器,其具有横向于阀芯的线性元件线弹簧,用于接合线轴中的周向槽。 线性元件弹簧包括具有三角形或正方形形状的单线弹簧,或者替代地,一个或多个非整体直线弹簧。 线性元件弹簧的延伸部延伸离开线轴的距离大于弹簧线直径。 延长部分允许弹簧可以从槽中移出,同时仍允许小直径弹簧丝。