Leak-free piston style accumulator

    公开(公告)号:US09885373B1

    公开(公告)日:2018-02-06

    申请号:US15290202

    申请日:2016-10-11

    Abstract: A fluid accumulator includes a tank, a piston, and a valve. The piston is movably disposed within the tank and divides the tank volume into a first fluid volume and a second fluid volume. The valve is coupled to the tank and includes a valve body, a valve element, a valve spring, a piston contact element, and a load limiter spring. The valve element is disposed within the valve body and is movable between an open position and a closed position. The valve spring has a first spring constant and supplies a force to the valve element that urges the valve element toward the open position. The piston contact element is spaced apart from, and is movable relative to, the valve element. The load limiter spring engages the valve element and the piston contact element, and has a second spring constant that is greater than the first spring constant.

    VALVE ARRAY
    7.
    发明申请
    VALVE ARRAY 有权
    阀阵

    公开(公告)号:US20130056103A1

    公开(公告)日:2013-03-07

    申请号:US13593605

    申请日:2012-08-24

    Applicant: Thomas Pippes

    Inventor: Thomas Pippes

    Abstract: A valve array includes a reservoir containing a pressurized fluid, a non-return valve and a seat valve that is actuatable so as to allow the fluid to flow out of the reservoir. The seat valve is configured as a pilot control valve connected to the reservoir such that, in an open condition of the seat valve, a smaller amount of the fluid flows out of the reservoir via the seat valve and a larger amount of the fluid flows out of the reservoir via the non-return valve.

    Abstract translation: 阀阵列包括容纳加压流体的储存器,止回阀和座阀,其可致动以允许流体流出储存器。 座阀被构造为连接到储存器的先导控制阀,使得在座阀的打开状态下,较少量的流体经由座阀从储存器流出并且较大量的流体流出 通过止回阀进行储存。

    Accumulator
    8.
    发明授权
    Accumulator 有权
    累加器

    公开(公告)号:US08371336B2

    公开(公告)日:2013-02-12

    申请号:US12672660

    申请日:2008-09-16

    CPC classification number: F15B1/103 F15B2201/205 F15B2201/3153 F15B2201/411

    Abstract: An outer gas type or inner gas type accumulator has a mechanism for reducing a pressure difference generated when liquid in a liquid chamber and gas expand thermally at a zero-down time, the pressure difference between the inside and outside of a bellows is reduced to suppress abnormal deformation of the bellows, a movable plate supported by a spring is provided at the bellows cap side of an oil port, the movable plate is supported by the spring and away from a seal in normal operation, the movable plate is pushed by the bellows cap and contacts with the seal while elastically deforming the spring, in a zero-down state, and when the liquid and the gas expand thermally in the zero-down state, the bellows cap moves to a position where the liquid pressure and the gas pressure balance, while the movable plate keeps contact with the seal.

    Abstract translation: 外部气体型或内部气体型蓄能器具有用于减少在液体室中的液体和气体在零下降时间热膨胀时产生的压力差的机构,波纹管的内部和外部之间的压力差减小以抑制 波纹管的异常变形,由弹簧支撑的可动板设置在油口的波纹管盖侧,可动板由弹簧支撑,并在正常操作中远离密封,可动板被波纹管推动 盖子并与密封件接触,同时在零下拉状态下使弹簧弹性变形,并且当液体和气体在零下拉状态下热膨胀时,波纹管盖移动到液体压力和气体压力 而可动板与密封件保持接触。

    Accumulator
    9.
    发明授权
    Accumulator 有权
    累加器

    公开(公告)号:US08096324B2

    公开(公告)日:2012-01-17

    申请号:US12679860

    申请日:2008-08-07

    Abstract: To restrain abnormal deformation of a bellows due to a pressure difference between the inside and outside thereof, an outside gas type accumulator includes a pressure difference regulation mechanism (21) having a movable plate (22) supported by a coil spring (23) on the oil port (4) side of a bellows cap (8), the plate (22) moves together with the cap (8) in a state of being supported by the spring (23), during normal operation, the plate (22) moves together with the cap (8) to be brought into contact with a seal (13) at zero-down time, and the plate (22) keeps contact with the seal (13) and the cap (8) moves to a position where liquid pressure and gas pressure balances while compressing the spring (23) when the liquid and the charged gas expand thermally.

    Abstract translation: 为了抑制波纹管的内外压差引起的波纹管的异常变形,外部气体型蓄能器包括压差调节机构(21),该压力差调节机构(21)具有由螺旋弹簧(23)支撑的可动板(22) 波纹管盖(8)的油口(4)侧,板(22)在由弹簧(23)支撑的状态下与盖(8)一起移动,在正常操作期间,板(22)移动 与盖(8)一起在零关闭时与密封件(13)接触,并且板(22)与密封件(13)保持接触,并且盖(8)移动到液体 压力和气体压力平衡,同时当液体和带电气体热膨胀时压缩弹簧(23)。

    Hydraulic pressure reservoir
    10.
    发明授权
    Hydraulic pressure reservoir 有权
    液压油箱

    公开(公告)号:US07658207B2

    公开(公告)日:2010-02-09

    申请号:US11474743

    申请日:2006-06-26

    Abstract: An hydraulic pressure reservoir having at least one pressure chamber with a fluid connection to a hydraulic circuit. The pressure chamber is formed between a movable partition member carried in a housing and having a pressure limiting valve, and a fixed partition. The movable partition member is in the form of a diaphragm spring.

    Abstract translation: 具有至少一个压力室的液压储存器,其具有与液压回路的流体连接。 压力室形成在承载在壳体中并具有限压阀的可移动分隔构件和固定分隔件之间。 可动分隔件为隔膜弹簧的形式。

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