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    • 81. 发明授权
    • Method of making a fluid pressure surge damper for a fluid system
    • 制造流体系统的流体压力浪涌阻尼器的方法
    • US4897906A
    • 1990-02-06
    • US341908
    • 1989-04-24
    • Donald D. Bartholomew
    • Donald D. Bartholomew
    • F16L55/05
    • F16L55/05Y10T29/494
    • A fluid surge damper for damping fluid pressure surges in a fluid system. The damper including a housing and elastomeric element located therein which is protected from the deleterious effects of the fluid by a flexible membrane. The flexible membrane contains a subatmospheric pressure which draws the flexible membrane against the elastomeric element resulting in a partial compression of the elastomeric element. If the continuity of the flexible membrane is destroyed, the subatmospheric condition will equalize with ambient pressure conditions and the elastomeric element will expand to its original shape thereby providing a readily visual indication of a faulty unit. In addition, the flexible membrane may be sealed while containing a partial volume of liquid and the elastomeric material used may be liquid permeable, therein acting in combination to limit the physical deformation of the elastomeric material by defining a minimum volume to which the elastomeric material may be compressed. This feature provides a fluid surge damper which will not be damaged by fluid surges which might otherwise deform the elastomeric material beyond its elastic limit.
    • 流体冲击阻尼器,用于阻止流体系统中的流体压力波动。 阻尼器包括位于其中的壳体和弹性体元件,其被柔性膜保护免受流体的有害影响。 柔性膜包含低于大气压的压力,其将柔性膜拉向弹性体元件,导致弹性体元件的部分压缩。 如果柔性膜的连续性被破坏,则低于大气压的条件将与环境压力条件相等,并且弹性体元件将膨胀到其原始形状,从而提供故障单元的容易的视觉指示。 此外,柔性膜可以在容纳部分体积的液体的同时被密封,并且所使用的弹性体材料可以是液体可渗透的,其中组合起作用以限制弹性体材料的物理变形,通过限定弹性体材料可能的最小体积 被压缩。 该特征提供了流体浪涌阻尼器,其不会被流体冲击损坏,否则可能使弹性体材料变形超过其弹性极限。
    • 82. 发明授权
    • Fluid pressure surge damper for a fluid system
    • 用于流体系统的流体压力浪涌阻尼器
    • US4823844A
    • 1989-04-25
    • US115338
    • 1987-11-02
    • Donald D. Bartholomew
    • Donald D. Bartholomew
    • F16L55/05F16L55/04
    • F16L55/05
    • A fluid surge damper for damping fluid pressure surges in a fluid system. The damper including a housing and elastomeric element located therein which is protected from the deleterious effects of the fluid by a flexible membrane. The flexible membrane contains a subatmospheric pressure which draws the flexible membrane against the elastomeric element resulting in a partial compression of the elastomeric element. If the continuity of the flexible membrane is destroyed, the subatmospheric condition will equalize with ambient pressure conditions and the elastomeric element will expand to its original shape thereby providing a readily visual indication of a faulty unit. In addition, the flexible membrane may be sealed while containing a partial volume of liquid and the elastomeric material used may be liquid permeable, therein acting in combination to limit the physical deformation of the elastomeric material by defining a minimum volume to which the elastomeric material may be compressed. This feature provides a fluid surge damper which will not be damaged by fluid surges which might otherwise deform the elastomeric material beyond its elastic limit.
    • 流体冲击阻尼器,用于阻止流体系统中的流体压力波动。 阻尼器包括位于其中的壳体和弹性体元件,其被柔性膜保护免受流体的有害影响。 柔性膜包含低于大气压的压力,其将柔性膜拉向弹性体元件,导致弹性体元件的部分压缩。 如果柔性膜的连续性被破坏,则低于大气压的条件将与环境压力条件相等,并且弹性体元件将膨胀到其原始形状,从而提供故障单元的容易的视觉指示。 此外,柔性膜可以在容纳部分体积的液体的同时被密封,并且所使用的弹性体材料可以是液体可渗透的,其中组合起作用以限制弹性体材料的物理变形,通过限定弹性体材料可能的最小体积 被压缩。 该特征提供了流体浪涌阻尼器,其不会被流体冲击损坏,否则可能使弹性体材料变形超过其弹性极限。
    • 85. 发明授权
    • Fluid pressure control mechanism
    • 流体压力控制机构
    • US4164954A
    • 1979-08-21
    • US744962
    • 1976-11-26
    • Allan Ballard
    • Allan Ballard
    • F16L55/05G05D16/06G05D16/00F15D1/02F17D1/20
    • G05D16/0661F16L55/05G05D16/0636Y10T137/2607Y10T137/7836
    • A mechanism for smoothing out the flow from the output of a positive displacement pump consists of one or more flexible wall structures consisting of a Belleville spring and a cover plate held over the hole in the Belleville spring by a stepped washer secured to the cover plate set into one or more openings in a fluid container. Means is provided to hold the flexible wall structures in the openings with the convex side extending inwardly into the opening. An elastomeric diaphragm is disposed over the flexible wall structures in sealing relationship with the openings in the body of the fluid container. The flexible wall structures deflect outwardly responsive to fluid pressure within the container, and fluctuations in pressure within the container cause variations in the deflection of the flexible wall structures thereby providing a variable volume within the fluid container. To utilize deflection of the flexible wall structures to control pressure in the container adjustable control valve parts are mounted through the flexible wall structures and a lost motion mechanism which will permit the flexible walls to deflect outwardly to a working pressure position, but will, if deflected still further, open the control valve and permit fluid to return to the intake side of the pump. The control valve may be set up to function as a relief valve, or alternatively, as an unloader valve to permit pressure within the pulsation reducer to drop below normal working pressure. A further reduction in pressure will cause the control valve to close and pressure in the pulsation reducer will increase to working pressure.
    • 用于平滑来自容积式泵的输出的流动的机构由一个或多个柔性壁结构组成,该柔性壁结构由贝氏弹簧和盖板保持在贝尔维尔弹簧的孔上,固定在盖板组上的阶梯式垫圈 进入流体容器中的一个或多个开口。 提供了将柔性壁结构保持在开口中的装置,其中凸面向内延伸到开口中。 弹性膜片设置在柔性壁结构之上,与流体容器主体中的开口密封。 柔性壁结构响应于容器内的流体压力而向外偏转,并且容器内的压力波动导致柔性壁结构的挠曲变化,从而在流体容器内提供可变的体积。 为了利用柔性壁结构的偏转来控制容器中的压力,可调节的控制阀部件通过柔性壁结构和一个空动机构安装,这将允许柔性壁向外偏转到工作压力位置,但如果偏转 此外,打开控制阀并允许流体返回到泵的进气侧。 控制阀可以设置为用作安全阀,或者作为卸载阀,以允许脉动减速器内的压力降至低于正常工作压力。 进一步降低压力将导致控制阀关闭,脉动减速器中的压力将增加到工作压力。
    • 86. 发明授权
    • Hydraulic fluid reservoir for a closed hydraulic system
    • 用于封闭液压系统的液压油箱
    • US4064911A
    • 1977-12-27
    • US742584
    • 1976-11-17
    • David E. Albrecht
    • David E. Albrecht
    • F15B1/10F15B1/26F16L55/04F16L55/05
    • F16L55/05F15B1/103F15B1/265F16L55/04F15B2201/205F15B2201/3153F15B2201/41F15B2201/4155
    • A vertically oriented air-tight bellows has its lower end connected to an opening in the top of the reservoir by an air-tight connection. A cover closes the upper end of the bellows and has secured thereto a fill inlet in communication with the interior of the bellows and carrying a removable cap. Vertical guide means guide the bellows in substantially vertical movement. Advantageously the bellows have means for lifting upwardly the upper end of the bellows and means for holding the bellows in an upwardly expanded position for filling. Preferably the cap for the fill inlet is transparent to permit viewing the hydraulic fluid in the bellows. A preferred embodiment has means to sight the position of the top of the bellows and a manually actuated bleed valve to vent gas from the interior of the bellows. A housing for the bellows is provided for situations where exposure to dirt particles is substantial. The capacity of an individual bellows may be varied widely and, if desired, overall capacity may be increased by employing a plurality of bellows.
    • 垂直取向的气密波纹管的下端通过气密连接连接到储存器顶部的开口。 盖子封闭波纹管的上端并且固定有与波纹管内部连通并且携带可拆卸盖子的填充入口。 垂直引导装置以大致垂直的方式引导波纹管。 有利的是,波纹管具有用于向上提升波纹管的上端的装置和用于将波纹管保持在向上扩展的位置用于填充的装置。 优选地,用于填充入口的盖是透明的,以允许观察波纹管中的液压流体。 优选实施例具有观察波纹管的顶部的位置和手动致动的放气阀的装置,以从波纹管的内部排出气体。 提供用于波纹管的外壳用于暴露于污垢颗粒的情况。 单个波纹管的容量可以变化很大,并且如果需要,可以通过使用多个波纹管来增加总体容量。
    • 87. 发明授权
    • Supercharge hose
    • 超级软管
    • US3665967A
    • 1972-05-30
    • US3665967D
    • 1970-01-16
    • WESTERN CO OF NORTH AMERICA
    • KACHNIK JOSEPH E
    • F16L55/05F16L55/052F16L55/054F16L11/00
    • F16L55/052F16L55/05F16L55/054
    • A conduit is provided for use in fluid-conducting systems which are subjected to pressure surges and includes an inner conduit for carrying fluid which is surrounded by a body of resilient material adapted to absorb undulations of the inner conduit in response to pressure surges of the fluid. In one embodiment the inner conduit is an expandable conduit and the resilient body is contained within a reinforcing member. In this embodiment, the inner conduit expands in response to pressure surges and thereby functions as an accumulator, so as to prevent damage to equipment in the system, such as pressure gauges, piping, and conduits, or for example, to even out the flow discharge from a positive displacement pump for the fluid.
    • 提供用于流体传导系统中的管道,其经受压力波动并且包括用于承载流体的内部导管,所述内部导管被弹性材料体围绕,以响应于流体的压力波动而吸收内部导管的波动 。 在一个实施例中,内部管道是可扩张管道,并且弹性体容纳在加强构件内。 在该实施例中,内部管道响应于压力波动而膨胀,从而用作蓄能器,以防止系统中的设备(例如压力表,管道和管道)的损坏,或者例如甚至流出 从用于流体的容积式泵排出。