发明申请
- 专利标题: Lip Type End Face Sealing Device
- 专利标题(中): 唇型端面密封装置
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申请号: US11631899申请日: 2005-06-16
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公开(公告)号: US20080029967A1公开(公告)日: 2008-02-07
- 发明人: Takehiro Nakagawa , Akihiro Sato , Tetsuo Tasaki , Hiromi Takahashi , Junya Hoshi , Hiroshi Okubo , Masahiro Anzai
- 申请人: Takehiro Nakagawa , Akihiro Sato , Tetsuo Tasaki , Hiromi Takahashi , Junya Hoshi , Hiroshi Okubo , Masahiro Anzai
- 申请人地址: JP TOKYO
- 专利权人: NOK CORPORATION
- 当前专利权人: NOK CORPORATION
- 当前专利权人地址: JP TOKYO
- 优先权: JP2004-202684 20040709
- 国际申请: PCT/JP05/11015 WO 20050616
- 主分类号: F16J15/32
- IPC分类号: F16J15/32 ; F16J15/40
摘要:
An objective of the present invention is to provide a lip type end face sealing device 6 having excellent sealability to different kinds of liquids on the both sides in the axial direction and having excellent durability. A case 61 tight fitted to an inner peripheral face 2a of a housing 2 comprises case members 611 and 612. One pair of seal lips 62 and 63 is integrally fitted to inner peripheral flange parts 611b and 612b, positioned oppositely each other in the axial direction, and opened in a tapered shape. One pair of the seal lips 62 and 63 is slidably contacted with flange parts 64b and 65b of slingers 64 and 65 tight fitted to an outer periphery of a rotary shaft 3. Pressure in seal internal spaces S2 between the both seal lips 62 and 63 and the both slingers 64 and 65 is released through a vent hole 22 opened on the inner peripheral face 2a of the housing 2, an air hole 611c opened on the case 61, and between the case members 611 and 612.
公开/授权文献
- US07806412B2 Lip type end face sealing device 公开/授权日:2010-10-05