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    Accumulator having a safety valve
    2.
    发明公开
    Accumulator having a safety valve 有权
    Druckspeicher mit Sicherheitsventil

    公开(公告)号：EP1323928A1

    公开(公告)日：2003-07-02

    申请号：EP02080035.5

    申请日：2002-12-03

    申请人： NHK Spring Co., Ltd.

    发明人： Umetsu, Chiharu, c/o NHK Spring Co., Ltd. ,  Mizukami, Hiroshi, c/o NHK Spring Co., Ltd. ,  Yamada, Koichiro, c/o NHK Spring Co., Ltd.

    IPC分类号： F15B1/10

    CPC分类号： F16L55/053 ,  F15B1/103 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/411 ,  F15B2201/4155 ,  F16L55/043 ,  Y10T137/1632 ,  Y10T137/8811

    摘要： The accumulator (1) comprises a pressure vessel (2), a bellows (3) dividing the interior of the pressure vessel into a gas chamber (7) filled with pressurized gas and a liquid chamber (8) which communicates with a liquid pressure circuit via a liquid introduction port (5). A stay member (4) is attached to the inner surface of the pressure vessel inside the bellows and provided with a communication port (9) for communicating the interior and exterior of the stay member with each other. The port (9) is adapted to be closed by a part of the bellows to define a fully contracted state of the bellows. A safety valve (11; 11') is provided in the stay member, typically in the form of a weakened portion of the stay member, for selectively communicating the exterior of the stay member with the interior of the stay member. Thus, because the safety valve is not provided in the pressure vessel itself, the safety valve does not affect the sealing capability of the pressure vessel.

    摘要翻译： 蓄能器（1）包括压力容器（2），波纹管（3）将压力容器的内部分成充满加压气体的气室（7）和与液压回路连通的液体室（8） 经由液体导入口（5）。 在波纹管内的压力容器的内表面上安装有支撑构件（4），并具有用于使支撑构件的内部和外部彼此连通的连通口（9）。 端口（9）适于由波纹管的一部分封闭以限定波纹管的完全收缩状态。 安装阀（11; 11'）设置在支撑构件中，通常为止动构件的弱化部分的形式，用于选择性地将撑杆构件的外部与撑杆构件的内部连通。 因此，由于安全阀不设置在压力容器本身中，所以安全阀不影响压力容器的密封能力。