- 专利标题： PISTON RING WITH VARYING APEX LINES
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申请号： US15991503申请日： 2018-05-29
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公开(公告)号： US20180274675A1公开(公告)日： 2018-09-27
- 发明人: Richard MITTLER , Frank NATHEM
- 申请人： FEDERAL-MOGUL BURSCHEID GMBH
- 优先权： DE102012220464.4 20121109
- 主分类号： F16J9/20
- IPC分类号： F16J9/20 ; F16J9/26 ; F16J1/08
摘要：
A piston ring having an outer running face, two flanks and an inner circumferential face is provided. The running face has profiling. The profile of the running face is substantially convexly curved and has an apex. The axial position of the apex varies periodically in the circumferential direction.
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