发明授权
- 专利标题: Oil ring
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申请号: US15534119申请日: 2015-12-01
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公开(公告)号: US10197160B2公开(公告)日: 2019-02-05
- 发明人: Daisuke Nakamura , Kazuyuki Yamahata , Mitsuhiro Adachi
- 申请人: KABUSHIKI KAISHA RIKEN
- 申请人地址: JP Chiyoda-ku, Tokyo
- 专利权人: KABUSHIKI KAISHA RIKEN
- 当前专利权人: KABUSHIKI KAISHA RIKEN
- 当前专利权人地址: JP Chiyoda-ku, Tokyo
- 代理机构: Kenja IP Law PC
- 优先权: JP2014-251015 20141211
- 国际申请: PCT/JP2015/005972 WO 20151201
- 国际公布: WO2016/092776 WO 20160616
- 主分类号: F16J9/12
- IPC分类号: F16J9/12 ; F16J9/06 ; F02F5/00 ; F16J9/20
摘要:
An oil ring (1) includes an oil ring body (10) and a coil expander (20). The oil ring body (10) includes a pair of rail portions (12) each including an end portion of an outer periphery having a land (30) formed protruding radially outward from each rail portion (12). The land (30) includes an upper axial portion (31) and a lower axial portion (32) facing opposite to each other in an axial direction, a tapered portion (33) having one axial end contiguous to the upper axial portion (31) via a first curved portion (35), and a protruding portion (34) having one of axial ends contiguous to the tapered portion (33) and the other axial end contiguous to the lower axial portion (32) via a second curved portion (36). The protruding portion (34) is protruding in a direction perpendicular to the tapered portion (33).
公开/授权文献
- US20180023702A1 OIL RING 公开/授权日:2018-01-25
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