发明授权
- 专利标题： Gas vent plug, bearing device, and bearing
- 专利标题（中）： 气体排放塞，轴承装置和轴承
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申请号： US11884387申请日： 2006-01-10
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公开(公告)号： US07845856B2公开(公告)日： 2010-12-07
- 发明人: Yasuhiko Shimizu , Yukihiro Takeda , Hirofumi Yoshida
- 申请人： Yasuhiko Shimizu , Yukihiro Takeda , Hirofumi Yoshida
- 申请人地址： JP Osaka
- 专利权人： NTN Corporation
- 当前专利权人： NTN Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2005-044262 20050221; JP2005-053926 20050228
- 国际申请： PCT/JP2006/300117 WO 20060110
- 国际公布： WO2006/087876 WO 20060824
- 主分类号： F16C33/72
- IPC分类号： F16C33/72
摘要：
A gas vent plug is mounted in an aperture communicating with a bearing cavity, and includes a metal annular body, and an elastic tubular body constituted of an elastic member in tube form, integral with the metal annular body, and having a vent at one end face of the tube, protruding outwards in the axial direction of the tube. A circular groove is provided at one end face of the elastic tubular body so as to encircle the vent. Accordingly, variation in the working pressure is eliminated even in the case where the interference is increased when the gas vent plug is mounted in the aperture.
公开/授权文献
- US20090127924A1 Gas Vent Plug, Bearing Device, and Bearing 公开/授权日：2009-05-21
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