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    SEAL DEVICE
    1.
    发明公开
    SEAL DEVICE 有权
    密封装置

    公开(公告)号：EP1801471A1

    公开(公告)日：2007-06-27

    申请号：EP05766273.6

    申请日：2005-07-20

    申请人： EAGLE INDUSTRY Co., Ltd. ,  HITACHI CONSTRUCTION MACHINERY CO., LTD.

    发明人： TSUBOI, Hajime, c/o Eagle Industry co., Ltd ,  IGAWA, Yuji, c/o Hitachi Constr. Machinery Co. LTD

    IPC分类号： F16J15/34

    CPC分类号： F16J15/344

    摘要： A seal device where, even if a fluid to be sealed is under high pressure, a seal surface of a seal ring is prevented from producing heat and the seal surface is prevented from wearing. The seal device has a first seal ring (5) having a first seal surface (5A)at an end surface and having, on the opposite side of the first seal surface (5A), a first pressing surface (5B) formed on an inclined surface: a first seal retainer (51) having a first inner periphery fixation surface (51A) facing the first pressing surface (5B); a first elastic seal ring (2) for pressing the first pressing surface (5B) in an axial direction by elastic force produced by sealed compression between the first pressing surface (5B) and the first inner periphery fixation surface (51A);a second seal ring (15) in tight contact with the first seal surface (5A) of the first seal ring (5) and having a second seal surface (15A) slidable relative to the first seal surface (5A); and a second seal retainer (61) in which the second seal ring (15) is sealedly held. The first pressing surface (5B) is formed as an inclined surface where the ratio H/L is in the range not exceeding 0.5, with H being the width in a radial direction, L the length in the axial direction of the first pressing surface (5B).

    摘要翻译： 一种密封装置，即使被密封的流体处于高压下，密封环的密封表面也不会产生热量，并且防止密封表面磨损。 该密封装置具有第一密封环（5），该第一密封环（5）在其端面具有第一密封表面（5A），并且在第一密封表面（5A）的相对侧上具有第一按压表面（5B） 表面：第一密封件保持器（51），其具有面对第一按压表面（5B）的第一内周固定表面（51A）; 第一弹性密封环（2），其用于通过第一按压面（5B）与第一内周固定面（51A）之间的密封压缩而产生的弹性力沿轴向按压第一按压面（5B）;第二密封件 （15）与第一密封环（5）的第一密封表面（5A）紧密接触并且具有相对于第一密封表面（5A）可滑动的第二密封表面（15A）; 和密封地保持第二密封环（15）的第二密封保持器（61）。 第一按压面（5B）形成为比率H / L在0.5以下的范围内的倾斜面，其中H为径向宽度，L为第一按压面的轴向长度（ 5B）。