发明申请
- 专利标题: SHAFT SEALING DEVICE, AND ROTARY MACHINE EQUIPPED THEREWITH
- 专利标题(中): 轴封密封装置及其设备的旋转机械
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申请号: US13994877申请日: 2011-12-20
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公开(公告)号: US20130259680A1公开(公告)日: 2013-10-03
- 发明人: Tanehiro Shinohara , Hidekazu Uehara , Shin Nishimoto , Takashi Nakano
- 申请人: Tanehiro Shinohara , Hidekazu Uehara , Shin Nishimoto , Takashi Nakano
- 优先权: JP2010-290144 20101227
- 国际申请: PCT/JP2011/079545 WO 20111220
- 主分类号: F01D11/00
- IPC分类号: F01D11/00
摘要:
A shaft sealing device and a rotary machine equipped therewith are provided with a sealing body configured by stacking a plurality of thin sealing pieces; and a low-pressure-side side sealing plate in which a plate surface facing the low-pressure side is pressed against an inner wall surface of the housing facing the direction of the axis by means of the pressure of a fluid applied from a high-pressure side to the low-pressure side. A protrusion for blocking a downward flow toward the inside of the low-pressure-side side sealing plate in the radial direction along the low-pressure side of the sealing body is formed on the inside of the low-pressure-side side sealing plate in the radial direction, and a communication path for guiding the downward flow blocked by means of the protrusion to a low-pressure-side region is formed on the housing.
公开/授权文献
- US09677410B2 Shaft sealing device, and rotary machine equipped therewith 公开/授权日:2017-06-13