Accumulator
    21.
    发明授权

    公开(公告)号:US4997009A

    公开(公告)日:1991-03-05

    申请号:US502509

    申请日:1990-03-30

    Abstract: In the interior of the housing of an accumulator, a metallic bellows and a self-seal mechanism are arranged. The metallic bellows partitions the interior of the housing into a gas chamber and a liquid chamber. The self-seal mechanism includes an elastic seal member and a face which the elastic seal member opposes. When the bellows is compressed to the predetermined extent due to introduction of a compressed gas into the gas chamber, the elastic seal member is brought into contact with the face, thus closing a flow port. The elastic seal member has a slanted face, so that a wedge-shaped liquid guide gap is produced when the elastic seal member is in contact with the face. When, in this condition, the compressed liquid is introduced into the flow port, part of the liquid enters the liquid guide gap, thus permitting the seal member to easily separate from the face.

    Repairable presssure vessels
    23.
    发明授权
    Repairable presssure vessels 失效
    可修理的压力容器

    公开(公告)号:US3960179A

    公开(公告)日:1976-06-01

    申请号:US567644

    申请日:1975-04-14

    Applicant: Abduz Zahid

    Inventor: Abduz Zahid

    Abstract: This invention relates to the art of Pressure Vessels, more particularly of the type using a deformable bladder having a cylindrical mouth of relatively large diameter with a thickened rim in which is bonded a rigid annular retaining member, the outer periphery of which extends radially outward beyond the periphery of the thickened rim, said retaining member having an annular groove in its outer perihery in which an O-ring is positioned to define a seal with respect to the side wall of the container in which the bladder is positioned, a portion of the thickened rim extending longitudinally beyond the outer surface of the annular retaining member and conformed to define an O-ring with respect to the closure plug of the pressure vessel which is secured in the mouth thereof.

    Abstract translation: 压力容器技术领域本发明涉及压力容器技术领域,特别是使用具有相对较大直径的圆柱形口径的可变形气囊的类型,其具有加厚的边缘,其中结合有刚性环形保持构件,其外周边径向向外延伸超出 加厚边缘的周边,所述保持构件在其外周边具有环形槽,其中O形环被定位成限定相对于其中定位囊的容器的侧壁的密封件,其中一部分 加厚的边缘纵向延伸超过环形保持构件的外表面,并且相对于固定在其口中的压力容器的封闭塞限定O形环。

    Pressure transfer unit
    24.
    发明授权
    Pressure transfer unit 失效
    压力传递单元

    公开(公告)号:US3939872A

    公开(公告)日:1976-02-24

    申请号:US407364

    申请日:1973-10-17

    Abstract: A pressure transfer unit having a movable partition including a flexible bellows for separating an internal, controlled-pressure chamber from a reference-pressure chamber. A valve is provided for limiting the volume of liquid that can be injected into and received in the controlled-pressure chamber during filling or refilling thereof. A spring biases the partition to apply a predetermined force to the partition and to shut off fluid transfer in the event of bellows failure. The unit is arranged for simple and rapid assembly and disassembly.

    Abstract translation: 一种压力传递单元,其具有可移动分隔件,该活动分隔件包括用于将内部控制压力室与参考压力室分离的柔性波纹管。 提供一种阀门,用于限制在填充或再充填期间可以注入和接收在受控压力室中的液体的体积。 弹簧偏压隔板以对隔板施加预定的力并且在波纹管故障的情况下关闭流体转移。 该装置安装简单快速的装配和拆卸。

    A COMBINATION SEAL FOR SEALING BETWEEN TWO MACHINE PARTS
    27.
    发明公开
    A COMBINATION SEAL FOR SEALING BETWEEN TWO MACHINE PARTS 失效
    用组合密封塑料密封机器零件。

    公开(公告)号:EP0424372A1

    公开(公告)日:1991-05-02

    申请号:EP88907262.0

    申请日:1988-07-07

    Abstract: Pour assurer l'étanchéité entre deux surfaces opposées de deux éléments mécaniques (1, 2), on prévoit un joint d'étanchéité combiné destiné à être installé dans une rainure ouverte (3) ménagée dans l'un des éléments mécaniques (2). Le joint d'étanchéité comprend un anneau à expansion élastomère (4, 5) placé au fond de la rainure (3), un anneau intermédiaire (6) en matériau visco-élastique, tel que du polytétrafluoroéthylène (PTFE), et présentant une surface de garniture étanche (6b) en contact avec l'élément mécanique de jointure (2), et un anneau externe élastomère (8) disposé dans une rainure séparée (7) ménagée dans la surface de garniture étanche (6b) de l'anneau intermédiaire. En particulier dans les cas où le joint d'étanchéité doit séparer un fluide d'un gaz, on obtient une répartition améliorée de la pression de contact au niveau de la surface de garniture étanche (6b) et également un relâchement hydrodynamique efficace de l'anneau externe (8), pour empêcher son exposition aux pressions préjudiciables et ainsi tout dommage qui en résulterait, en concevant l'anneau intermédiaire (6) aux extrémités de la surface de garniture étanche (6b) avec des angles comparativement saillants (16, 17), les parties de la surface de garniture étanche comprises entre ces angles et la rainure séparée (7) formant des faces coniques (14, 15) qui, par un angle étroit fendu, convergent vers la rainure séparée (7). L'anneau intermédiaire peut également être sollicité par deux anneaux d'expansion (4, 5) placés de chaque côté de la rainure séparée (7).

    ACCUMULATOR
    28.
    发明授权

    公开(公告)号:EP2957776B1

    公开(公告)日:2018-09-19

    申请号:EP13875034.4

    申请日:2013-12-05

    Abstract: Provided is an accumulator, which: is capable of reducing the pressure difference that is generated by differences in coefficients of thermal expansion when liquid trapped in the liquid chamber and a sealed gas undergo thermal expansion during zero-down, thereby limiting the occurrence of plastic deformation in the bellows; and has a structure in which the parts are small and few in number. To achieve said purpose, the accumulator has a sealing member held on the port hole-side of the bellows cap via a seal holder. When operation of the machine is stopped and the pressure inside the pressure piping decreases, the sealing member contacts the sealing section and closes the liquid chamber. If liquid trapped in the liquid chamber when the liquid chamber is closed undergoes thermal expansion, the bellows cap moves in the direction away from the sealing section while the sealing member is still in contact with the sealing section. Since the sealing member is a rigid plate, the outer circumferential surface of which is covered by a flexible section obtained from a rubber-like elastic body, the flexible section allows relative movement of the bellows cap by undergoing shear deformation as a result of engagement with the seal holder.

    ACCUMULATOR
    29.
    发明公开
    ACCUMULATOR 审中-公开
    ACC

    公开(公告)号:EP2957776A4

    公开(公告)日:2016-02-24

    申请号:EP13875034

    申请日:2013-12-05

    Abstract: Provided is an accumulator, which: is capable of reducing the pressure difference that is generated by differences in coefficients of thermal expansion when liquid trapped in the liquid chamber and a sealed gas undergo thermal expansion during zero-down, thereby limiting the occurrence of plastic deformation in the bellows; and has a structure in which the parts are small and few in number. To achieve said purpose, the accumulator has a sealing member held on the port hole-side of the bellows cap via a seal holder. When operation of the machine is stopped and the pressure inside the pressure piping decreases, the sealing member contacts the sealing section and closes the liquid chamber. If liquid trapped in the liquid chamber when the liquid chamber is closed undergoes thermal expansion, the bellows cap moves in the direction away from the sealing section while the sealing member is still in contact with the sealing section. Since the sealing member is a rigid plate, the outer circumferential surface of which is covered by a flexible section obtained from a rubber-like elastic body, the flexible section allows relative movement of the bellows cap by undergoing shear deformation as a result of engagement with the seal holder.

    ACCUMULATOR
    30.
    发明公开
    ACCUMULATOR 审中-公开
    累加器

    公开(公告)号:EP2957776A1

    公开(公告)日:2015-12-23

    申请号:EP13875034.4

    申请日:2013-12-05

    Abstract: Provided is an accumulator, which: is capable of reducing the pressure difference that is generated by differences in coefficients of thermal expansion when liquid trapped in the liquid chamber and a sealed gas undergo thermal expansion during zero-down, thereby limiting the occurrence of plastic deformation in the bellows; and has a structure in which the parts are small and few in number. To achieve said purpose, the accumulator has a sealing member held on the port hole-side of the bellows cap via a seal holder. When operation of the machine is stopped and the pressure inside the pressure piping decreases, the sealing member contacts the sealing section and closes the liquid chamber. If liquid trapped in the liquid chamber when the liquid chamber is closed undergoes thermal expansion, the bellows cap moves in the direction away from the sealing section while the sealing member is still in contact with the sealing section. Since the sealing member is a rigid plate, the outer circumferential surface of which is covered by a flexible section obtained from a rubber-like elastic body, the flexible section allows relative movement of the bellows cap by undergoing shear deformation as a result of engagement with the seal holder.

    Abstract translation: 本发明提供一种蓄液器,该蓄液器能够减小由液体室内积存的液体和密封气体在零下降时发生热膨胀时的热膨胀系数的差异所产生的压力差,从而限制塑性变形的发生 在风箱里; 并且具有部件小而数量少的结构。 为了实现所述目的,蓄压器具有通过密封保持器保持在波纹管盖的端口孔侧的密封构件。 当机器的操作停止并且压力管道内的压力减小时,密封构件接触密封部并关闭液体室。 如果在关闭液体腔室时液体腔中的液体受到热膨胀,则在密封部件仍与密封部分接触的同时,波纹管帽沿远离密封部分的方向移动。 由于密封构件是刚性板,其外周表面被由橡胶状弹性体获得的柔性部分覆盖,所以柔性部分通过由于接合而经历剪切变形而允许波纹管帽相对移动 密封座。

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