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    Filter mounting and bypass valve assembly
    7.
    发明授权
    Filter mounting and bypass valve assembly 失效
    过滤器安装和旁通阀组件

    公开(公告)号：US3928201A

    公开(公告)日：1975-12-23

    申请号：US49558974

    申请日：1974-08-08

    Applicant: CATERPILLAR TRACTOR CO

    Inventor： JUNCK JOHN A ,  LATIMER EUGENE E

    IPC: F01M11/03 ,  B01D27/10 ,  B01D29/11 ,  B01D35/02 ,  B01D35/027 ,  B01D35/147

    CPC classification number: B01D35/027 ,  B01D35/147

    Abstract: A filter assembly includes a housing within which is disposed a filter element with resilient support means at one end. Inlet means direct fluid to the filter, through which such fluid normally flows. The fluid then normally flows through outlet means defined by the housing. The fluid flowing through the inlet means is in communication with a valve including a valving element movable toward the filter element to allow fluid to flow from the inlet means to the outlet means, bypassing the filter element. A helical spring is disposed between the valving element and the resilient support means for the filter element to bias the valving element in a position so that the fluid is normally directed through the filter element. An increase of the fluid pressure in the filter element moves the valve element toward the filter element against the resilience of the spring, so that the fluid bypasses the filter element.

    Abstract translation: 过滤器组件包括壳体，在其中在一端设置有具有弹性支撑装置的过滤元件。 入口意味着将流体直接流到过滤器，这种流体通过该过滤器正常流动。 然后，流体通常流过由壳体限定的出口装置。 流过入口装置的流体与包括可朝向过滤器元件移动的阀元件的阀连通，以允许流体从入口装置流到出口装置，从而绕过滤器元件。 螺旋弹簧设置在阀元件和用于过滤元件的弹性支撑装置之间，以将阀元件偏置在使得流体通常通过过滤元件的位置。 过滤元件中的流体压力的增加使得阀元件抵抗弹簧的弹性使过滤元件朝向过滤器元件移动，使得流体绕过过滤元件。

    Accumulator charging circuit for high pressure hydraulic system
    8.
    发明授权
    Accumulator charging circuit for high pressure hydraulic system 失效
    高压液压系统蓄电池充电电路

    公开(公告)号：US3918847A

    公开(公告)日：1975-11-11

    申请号：US44014574

    申请日：1974-02-06

    Applicant: CATERPILLAR TRACTOR CO

    Inventor： JUNCK JOHN A ,  JOHNSON HOWARD L

    IPC: F04B49/24 ,  F15B1/027 ,  F04B49/08

    CPC classification number: F04B49/24 ,  F15B1/027 ,  F15B2211/20576 ,  F15B2211/71

    Abstract: An accumulator charging arrangement for a high pressure hydraulic system. The arrangement includes a pair of relatively small volumetric capacity fixed-displacement pumps each of which is combined with a separate accumulator charging valve. The pumpcharging valve combinations are disposed in parallel to feed pressure fluid to a pair of accumulator devices for use of the hydraulic circuit upon specific demand. One pump-charging valve combination supplies pressure fluid only within a certain pressure range. The second pump-charging valve combination supplies fluid at a second discrete pressure range which is higher than that within which the first combination operates. For system demands within a lower pressure range, both pump-charging valve combinations are operative to supply fluid, however, upon a demand for pressure only within the higher pressure range, only the second pump-valve combination is operative to supply the separate accumulator devices associated with the combinations.

    Abstract translation: 一种用于高压液压系统的蓄电池充电装置。 该装置包括一对相对较小的体积容量的固定容积泵，每个容积泵与单独的蓄能器充气阀组合。 泵充气阀组合平行于将压力流体供给到一对储存器装置，以在特定需求时用于液压回路。 一个泵充气阀组合仅在一定压力范围内提供压力流体。 第二泵充电阀组合在比第一组合运行的第二离散压力范围高的第二离散压力范围内供应流体。 对于较低压力范围内的系统要求，两个泵充气阀组合都可用于供应流体，然而，只有在仅在较高压力范围内的压力需求下，仅第二泵 - 阀组合可操作以提供单独的蓄能器装置 与组合相关联。

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