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    Constant pressure hydraulic accumulator
    271.
    发明授权
    Constant pressure hydraulic accumulator 失效
    恒压液压蓄能器

    公开(公告)号：US4187682A

    公开(公告)日：1980-02-12

    申请号：US66

    申请日：1979-01-02

    Applicant: Jan-son Shen

    Inventor： Jan-son Shen

    IPC: F15B1/027 ,  F15B1/08 ,  F15B1/02 ,  F15B1/04

    CPC classification number: F15B1/027 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/411 ,  F15B2201/413

    Abstract: A hydraulic system pressure fluid accumulator apparatus is disclosed that meets peak load demands beyond the flow capacity of the system pump. Gas cylinder actuation of the accumulator piston augmented by system pressure feedback actuation of the piston metered by a pressure regulator valve maintains accumulator output pressure level substantially independent of piston displacement.

    Abstract translation: 公开了一种满足超过系统泵的流动能力的峰值负载需求的液压系统压力流体蓄能装置。 通过由压力调节阀计量的活塞的系统压力反馈致动而增加的蓄能器活塞的气缸致动器保持基本上独立于活塞位移的蓄能器输出压力水平。

    Pressure pulse dampener device
    272.
    发明授权
    Pressure pulse dampener device 失效
    压力脉冲斩波器装置

    公开(公告)号：US3857413A

    公开(公告)日：1974-12-31

    申请号：US40591473

    申请日：1973-10-12

    Applicant: GREER HYDRAULICS INC

    Inventor： ZAHID A

    IPC: F15B1/22 ,  F16L55/052 ,  F16L55/053 ,  F16L55/04

    CPC classification number: F15B1/22 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/411 ,  F15B2201/413 ,  F15B2201/4155 ,  F15B2201/435 ,  F16L55/052 ,  F16L55/053 ,  Y10T137/3118

    Abstract: The invention relates to a pressure pulse dampener device comprising a pressure vessel having a movable partition therein defining two chambers, each having a port in communication therewith, one of the ports defining a gas port for charging of one of said chambers with gas under pressure and the other an oil port, said oil port having a hollow fitting rigidly secured thereto, said fitting having an inlet port and an outlet port, the fitting having means therein defining a tortuous path for oil under pressure from said inlet port to said outlet port, the oil port being in communication with the tortuous path and means are provided in the fitting to afford a direct path for flow of oil from said inlet port to the outlet port of a portion of the oil under pressure entering the inlet port and for varying the cross sectional area of a portion of said path to restrict the flow of such oil.

    Abstract translation: 本发明涉及一种压力脉冲阻尼器装置，其包括压力容器，该压力容器具有限定两个室的可移动分隔件，每个腔室具有与之连通的端口，其中一个端口限定用于在压力下用气体对其中一个室进行充气的气体端口， 另一个油口，所述油口具有刚性地固定到其上的中空配件，所述配件具有入口和出口，所述配件具有装置，其中限定了用于在压力下从所述入口到所述出口的油的曲折路径， 油口与曲折路径连通并且装置设置在配件中以提供用于将油从所述入口的一部分的所述入口端口排出到出口端口的直接路径，该压力进入入口端口，并且用于改变 所述路径的一部分的横截面面积限制这种油的流动。

    Pulse damper unit for hydraulic system
    273.
    发明授权
    Pulse damper unit for hydraulic system 失效
    液压系统脉冲阻尼器单元

    公开(公告)号：US3744527A

    公开(公告)日：1973-07-10

    申请号：US3744527D

    申请日：1972-07-13

    Applicant: MERCIER J

    Inventor： MERCIER J

    IPC: F16L55/04 ,  F15B1/08 ,  F15B1/16 ,  F16L55/052 ,  F16L55/054

    CPC classification number: F16L55/052 ,  F15B1/16 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/3156 ,  F15B2201/413 ,  F15B2201/415 ,  F16L55/054

    Abstract: The present invention relates to a pulse damper unit for a hydraulic system and comprises a rigid container with two opposed ports, each having an associated tubular fitting defining an inlet and outlet respectively for connection of the unit to the hydraulic system. A flexible separator in the form of a bladder having two opposed ports, is positioned in the container defining an inner and outer chamber with said bladder ports being associated with and operatively connected to said fittings. A tube extending axially in said container, has its ends operatively connected to said tubular fittings, one end of said tube being rigidly secured to an associated fitting and the other end of the tube being slidably mounted with respect to an associated fitting. The tube defines a longitudinal passageway connecting said tubular fittings and has a permeable wall providing communication between said passageway and said inner chamber, a baffle adjustably mounted in said tube insuring that all of the hydraulic fluid entering the inlet fitting will flow through said permeable wall into said inner chamber before discharge from said outlet fitting. A third fitting is connected to a port leading into said container and in communication with said outer chamber, for charging of said outer chamber with fluid under pressure in order to dampen pulses in the hydraulic system.

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