Accumulator
    52.
    发明授权
    Accumulator 失效
    累加器

    公开(公告)号:US4858898A

    公开(公告)日:1989-08-22

    申请号:US292377

    申请日:1988-12-30

    Abstract: A rod is inserted in a first cylinder. A first oil chamber is defined by the inner surface of the first cylinder. The rod can be reciprocated with a first stroke. A second cylinder is coupled to the first cylinder by a connecting member. A metal bellows is housed in the second cylinder. A gas chamber is defined by the inner surface of the bellows. A second oil chamber is defined by the outer surface of the bellows and the inner surface of the second cylinder. The bellows contracts with a second stroke corresponding to the first stroke of the rod. The first and second oil chambers communicate with each other via an oil path formed in the connecting member. A valve seat is arranged on an end wall of the second cylinder. A valve body is fixed to the bellows so as to oppose the valve seat. If the bellows expands farther than the second stroke when a gas is supplied into the gas chamber, the valve body is brought into contact with the valve seat. When the valve body and the valve seat are brought into contact with each other, the oil is entrapped in a gap between the inner surface of the second cylinder and the outer surface of the bellows body.

    Abstract translation: 杆插入第一气缸。 第一油室由第一气缸的内表面限定。 杆可以与第一冲程往复运动。 第二气缸通过连接构件联接到第一气缸。 金属波纹管容纳在第二个气缸中。 气体室由波纹管的内表面限定。 第二油室由波纹管的外表面和第二气缸的内表面限定。 波纹管以对应于杆的第一冲程的第二冲程收缩。 第一和第二油室通过形成在连接构件中的油路相互连通。 阀座设置在第二气缸的端壁上。 阀体固定在波纹管上以与阀座相对。 如果当气体供应到气室中时波纹管比第二冲程更远,则阀体与阀座接触。 当阀体和阀座彼此接触时,油被截留在第二气缸的内表面和波纹管体的外表面之间的间隙中。

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