Balanced dual chamber oil pump
    11.
    发明授权
    Balanced dual chamber oil pump 失效
    平衡双室油泵

    公开(公告)号:US4443161A

    公开(公告)日:1984-04-17

    申请号:US378746

    申请日:1982-05-17

    CPC classification number: F04C15/06 F04C14/26

    Abstract: In an oil pump of the type comprising a cartridge having an elliptical cam ring in which a rotor having a plurality of vanes is rotated to form a pair of pump chambers symmetric with respect to an axis of rotor, and a pair of suction passages and two pairs of discharge passages are provided for the pair of pump chambers. A valve opening is formed coaxially with the rotor in a pump body secured to one side of the cartridge to contain the spool valve. A metering orifice is provided in a discharge passage to actuate the spool valve in response to a pressure differential such that when the pump speed is low all outputs of both pump chambers are supplied to a load, whereas when the pump speed is high a portion of the outputs is supplied the suction side. According to this construction it is possible to decrease power consumption and to decrease the size and weight of the oil pump.

    Abstract translation: 在这种类型的油泵中,包括具有椭圆形凸轮环的筒,其中具有多个叶片的转子旋转以形成相对于转子轴对称的一对泵室,以及一对抽吸通道和两个 为一对泵室提供了一对排放通道。 阀门开口与固定在筒体一侧的泵体中的转子同轴地形成以容纳滑阀。 在排放通道中设置计量孔口以响应于压差来致动滑阀,使得当泵速度低时,两个泵室的所有输出被提供给负载,而当泵速度高时,部分 输出被供给吸力侧。 根据该结构,能够降低功率消耗并降低油泵的尺寸和重量。

    Pump unit
    12.
    发明授权
    Pump unit 失效
    泵单元

    公开(公告)号:US4415319A

    公开(公告)日:1983-11-15

    申请号:US291874

    申请日:1981-08-11

    CPC classification number: F04C15/0023 F04C11/001

    Abstract: A plurality of pump sections are received in a stack in a body. Each of the pump sections include a cam ring disposed in surrounding relationship with a rotor having vanes thereon, and a pair of sideplates which closes the opposite sides of the cam ring. All of the pump sections are driven by a common drive shaft, thereby providing a compact pump unit having a reduced axial length. The outermost sideplates are subject to a discharge pressure from the respective pump sections to urge the various components of the individual pump sections to be held against the body. In this manner, the components are maintained at given accurate locations, eliminating the likelihood of a liquid leakage and simplifying the arrangement.

    Abstract translation: 多个泵部分被容纳在体内的堆叠中。 每个泵部分包括与其上具有叶片的转子相关联地设置的凸轮环,以及封闭凸轮环的相对侧的一对侧板。 所有的泵部分由共同的驱动轴驱动,从而提供具有减小的轴向长度的紧凑的泵单元。 最外侧的侧板受到来自相应的泵部分的排出压力,以迫使各个泵部分的各个部件保持抵靠主体。 以这种方式,将部件保持在给定的精确位置,消除了液体泄漏的可能性并简化了布置。

    Hydraulic brake control assembly
    13.
    发明授权
    Hydraulic brake control assembly 失效
    液压制动控制组件

    公开(公告)号:US4119354A

    公开(公告)日:1978-10-10

    申请号:US834028

    申请日:1977-09-16

    CPC classification number: B60T8/285 B60T11/34

    Abstract: A hydraulic brake control assembly is provided in which a proportioning valve is actuated to reduce fluid pressure to be supplied to rear cylinders from a master cylinder in accordance with the vehicle deceleration. An inertia ball is adapted to control the movement of the proportioning valve via a flexible disc valve to increase or reduce the fluid pressure supply to the rear cylinders. The disc valve is deformable to open the proportioning valve if the pressure of the master cylinder exceeds a predetermined level.

    Abstract translation: 提供一种液压制动控制组件,其中致动比例阀以根据车辆减速度从主缸减小供应到后缸的流体压力。 惯性球适于通过柔性盘阀来控制配比阀的运动,以增加或减少对后缸的流体压力。 如果主缸的压力超过预定水平,则盘阀可变形以打开比例阀。

    Fluid-pressure regulating valve
    14.
    发明授权
    Fluid-pressure regulating valve 失效
    流体压力调节阀

    公开(公告)号:US3945690A

    公开(公告)日:1976-03-23

    申请号:US530608

    申请日:1974-12-06

    CPC classification number: B60T13/268 B60T8/1831

    Abstract: A fluid-pressure regulating valve for adjusting a supply pressure from either of two air reservoirs according to the payload of a vehicle and supplying the adjusted pressure to a control pressure chamber in a pressure-proportioning relay valve, the regulating valve comprising: a valve assembly for controlling the supply pressure, said assembly including a pressure piston reciprocably disposed in the valve body and formed with an air passage through the wall on one side, a supply valve accommodated in a supply pressure chamber inside the pressure piston and seated on a valve seat provided at the lower end of the supply pressure chamber, and an exhaust valve having an exhaust valve seat engageable with the supply valve and also having an upward protrusion extended through an exhaust bore formed in the axial center of the supply valve; an output pressure chamber defined between the underside of the pressure piston and the inner wall of the valve body; a balance spring disposed above the pressure piston in communication with the atmosphere to offset the upward force developed by the output pressure to raise the pressure piston; and a loading spring disposed under the exhaust valve to bias the supply valve into the open position via the exhaust valve; said upward protrusion of the exhaust valve being linked at its end with a linkwork movable in response to the vehicle payload.

    Abstract translation: 一种流体压力调节阀,用于根据车辆的有效载荷来调节来自两个储气室中的任一个的供应压力,并将调节的压力提供给压力比例继动阀中的控制压力室,所述调节阀包括:阀组件 用于控制供应压力,所述组件包括可往复地设置在阀体中并形成有一侧的壁的空气通道的压力活塞,供应阀,其容纳在压力活塞内的供应压力室中并且安置在阀座上 设置在供给压力室的下端,排气阀具有与供给阀接合的排气阀座,并且还具有延伸穿过形成在供给阀的轴心的排气孔的向上突出部; 输出压力室限定在压力活塞的下侧和阀体的内壁之间; 平衡弹簧,设置在压力活塞上方,与大气连通,以抵消由输出压力产生的向上的力,以升高压力活塞; 以及装载弹簧,其设置在所述排气阀下方,以经由所述排气阀将所述供给阀偏压到打开位置; 所述排气门的所述向上突出部在其端部处与可响应于所述车辆有效载荷的链接装置连接。

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