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Face seal with spiral grooves

机译:带螺旋槽的端面密封

摘要

The present invention provides a face seal with spiral grooves comprising: a rotating ring including a sealing face; a stationary ring including a sealing face; the face is confronted with the face of the rotating ring to form a circular interface having a circle center; the faces of the rings can rotate relatively to each other; two spiral groove sets are provided at least on one of the faces of the rotating and the stationary rings, wherein one set disposed on the high pressure side, i.e. at the upstream, and the other set disposed on the low pressure side, i. e. at the downstream; the spiral angles of these two spiral groove sets are opposite to each other; the radial length of an upstream spiral groove is greater than that of a downstream spiral groove; and an annular flat belt is further provided at the downstream of the downstream spiral groove set.
机译:本发明提供了一种具有螺旋槽的面密封件,该面密封件包括:旋转环,其包括密封面;以及旋转环。包括密封面的固定环;该表面面对旋转环的表面以形成具有圆心的圆形界面。环的面可以相对旋转。至少在旋转环和固定环的一个表面上提供两个螺旋槽组,其中一组布置在高压侧,即上游,而另一组布置在低压侧,即上游。 e。在下游;这两个螺旋槽组的螺旋角彼此相反。上游螺旋槽的径向长度大于下游螺旋槽的径向长度。下游螺旋槽组的下游还设有环形平带。

著录项

  • 公开/公告号US6152452A

    专利类型

  • 公开/公告日2000-11-28

    原文格式PDF

  • 申请/专利权人 WANG;YUMING;

    申请/专利号US19980172002

  • 发明设计人 YUMING WANG;

    申请日1998-10-14

  • 分类号F16J15/38;

  • 国家 US

  • 入库时间 2022-08-22 01:06:28

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