Sealing arrangement between a shaft and a housing of a fluid flow engine
    37.
    发明授权
    Sealing arrangement between a shaft and a housing of a fluid flow engine 失效
    轴与轴流式流体发动机壳体之间的密封配置

    公开(公告)号:US4865332A

    公开(公告)日:1989-09-12

    申请号:US267280

    申请日:1988-11-04

    申请人: Georg Ruetz

    发明人: Georg Ruetz

    摘要: A sealing arrangement between a shaft and a housing of a fluid flow engine consists of a blocking gas space acted upon with blocking gas, which is delimited by two sealing rings guided in annular grooves of the shaft and radially sealingly abutting at the shaft through-bore. In order to avoid operation-endangering wear of the sealing rings in case of failure of the blocking gas supply, the shaft through-bore is constructed with three diameter regions mutually offset by right angle steps. The steps form each an axial support for the coordinated sealing ring which comes into action when a permissive initial wear has occurred at the sealing ring.

    摘要翻译: 流体流动发动机的轴和壳体之间的密封装置由阻塞气体空间组成,阻塞气体空间由阻塞气体作用,所述阻塞气体空间由在轴的环形槽中引导的两个密封环限定,并且径向密封地邻接在轴穿过孔 。 为了避免在阻塞气体供应失败的情况下操作危害密封环的磨损,轴通孔由三个直径的区域构成,这两个直径区域通过直角台阶相互抵消。 所述台阶形成用于协调密封环的轴向支撑件,当在密封环处发生允许的初始磨损时,其将起作用。

    Emergency shaft seal device by deformation of packing ring
    38.
    发明授权
    Emergency shaft seal device by deformation of packing ring 失效
    紧固轴封装置通过包装环变形

    公开(公告)号:US4541638A

    公开(公告)日:1985-09-17

    申请号:US642914

    申请日:1984-08-21

    摘要: This invention discloses an emergency shaft seal device wherein a packing ring of elastic material the inside diameter of which is larger than the outside diameter of a rotatable shaft is received in an annular groove along the periphery of the rotatable shaft to be free and not in contact with the rotatable shaft, and in the event of abnormal condition of a main shaft seal device used under the normal conditions, the packing ring is deformed by the pressure of a pressurized fluid applied to the outer periphery of the packing ring to be equally pressed to the periphery of the rotatable shaft so that the sealing is performed by the packing ring in place of main shaft seal.

    摘要翻译: 本发明公开了一种应急轴密封装置,其中内径大于可旋转轴外径的弹性材料的密封环被容纳在沿着可旋转轴的周边的环形槽中,以便自由而不接触 并且在正常情况下使用的主轴密封装置发生异常情况的情况下,通过施加到密封环的外周的加压流体的压力使填料环变形,以均匀地压入 可旋转轴的周边,以便密封由密封环代替主轴密封。

    Apparatus for testing pipes by a pipe tester
    39.
    发明授权
    Apparatus for testing pipes by a pipe tester 失效
    用管道测试仪测试管道的设备

    公开(公告)号:US4537407A

    公开(公告)日:1985-08-27

    申请号:US584372

    申请日:1984-02-28

    CPC分类号: G01M3/022 Y10S277/929

    摘要: A sealing arrangement around an end of a pipe received in a testhead of a hydraulic pipe testing apparatus, which sealing arrangement consists of an elastic sealing ring and an adjacent, rigid support ring of varying diameters. Both rings are mounted in radial recesses in the testhead and encircle the pipe upon its entry into the testhead. The recess for the elastic sealing ring consists of a flat ring located between the sealing ring and the rigid support ring. For a sealing condition, the support ring is contracted to abut the pipe and the sealing ring is caused to be deformed whereby it flows radially outwardly from its recess against the pipe and axially along the pipe towards and away from the pipe's end. In the axial direction away from the end of the pipe, the sealing ring flows around the flat ring to abut the rigid support ring.

    摘要翻译: 围绕容纳在液压管道试验装置的试验头中的管的端部周围的密封装置,该密封装置由不同直径的弹性密封环和相邻的刚性支撑环组成。 两个环安装在测头中的径向凹槽中,并且在进入测头时环绕管。 用于弹性密封环的凹部由位于密封环和刚性支撑环之间的平环组成。 对于密封条件,支撑环收缩以邻接管道,并且使密封环变形,从而使其密封环从其凹部径向向外流过管道并且沿着管道轴向并且远离管道端部。 在离开管端的轴向上,密封环围绕平环流动以邻接刚性支撑环。

    Face seal means with back-up seal
    40.
    发明授权
    Face seal means with back-up seal 失效
    表面密封意味着备份密封

    公开(公告)号:US4477088A

    公开(公告)日:1984-10-16

    申请号:US451643

    申请日:1982-12-20

    摘要: In a twin spool gas turbine engine, a bellows serves to bias a carbon seal against its seal plate and a piston ring back-up seal spaced radially outward and axially from the carbon seal provides a controlled leak path in the event the bellows fails.

    摘要翻译: 在双筒式燃气涡轮发动机中,波纹管用于将碳密封件偏压到其密封板上,并且与碳密封件径向向外和轴向间隔开的活塞环支撑密封件在波纹管故障的情况下提供受控的泄漏路径。