发明授权
- 专利标题： Single ring sector seal
- 专利标题（中）： 单环扇形密封
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申请号： US821789申请日： 1992-01-16
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公开(公告)号： US5192083A公开(公告)日： 1993-03-09
- 发明人: Henry F. Jones, Jr. , Wilbur Shapiro
- 申请人： Henry F. Jones, Jr. , Wilbur Shapiro
- 申请人地址： NY Corning
- 专利权人： Dresser-Rand Company
- 当前专利权人： Dresser-Rand Company
- 当前专利权人地址： NY Corning
- 主分类号： F16J15/44
- IPC分类号： F16J15/44
摘要：
A single ring sector seal (10) has multiple arcuate sectors (12a, 12b, 12c) arranged circumferentially around a rotating shaft and in floating engagement with a seal housing. Each sector (12) engages each adjacent sector (12) with a slot seal (40) and overlapping joint (38) therebetween to deter leakage. A protruding ridge (36) on each sector (12) engages a low pressure end cover (18) to form a secondary seal. Spring balance seals (28) provide a further seal between the high pressure chambers (20b, 20c) and the chamber (20a) which can be vented while the shaft is rotating and pressurized when the shaft is stationary. Each sector (12) is radially, axially and moment balanced.
公开/授权文献
- US6051106A Cast-coated paper and production method thereof 公开/授权日：2000-04-18
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