发明授权
- 专利标题: Oil film cooled face seal
- 专利标题(中): 油膜冷面密封
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申请号: US678221申请日: 1996-07-11
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公开(公告)号: US5639096A公开(公告)日: 1997-06-17
- 发明人: M. Rifat Ullah
- 申请人: M. Rifat Ullah
- 申请人地址: NJ Morris Township
- 专利权人: AlliedSignal Inc.
- 当前专利权人: AlliedSignal Inc.
- 当前专利权人地址: NJ Morris Township
- 主分类号: F16J15/34
- IPC分类号: F16J15/34
摘要:
Disclosed is an oil film cooled face seal that is comprised of an annular stator having a flat surface in rubbing contact with the flat sealing surface of a rotor. The rotor has a flange portion extending radially from a base portion. The base portion has a plurality of holes extending radially therethrough in fluid communication with a source of cooling oil. One side of the flange portion comprises the flat sealing surface. The opposite side, or backface, has a plurality of external radially spaced apart annular grooves criss-crossing a plurality of external circumferentially spaced apart substantially radial grooves. Each of the radial grooves is aligned with and in fluid communication with a corresponding hole in the base portion, and extends fully across the backface. Upon rotation of the rotor, centrifugal force causes the cooling oil to flow from the cooling oil source, through the hole, through the radial groove wherein aerodynamic force causes a portion of the oil to flow across the backface and into the annular grooves, thereby convectively cooling the rotor.
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