Invention Grant
- Patent Title: Method for producing an oil scraper piston ring
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Application No.: US14401946Application Date: 2013-04-25
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Publication No.: US09638321B2Publication Date: 2017-05-02
- Inventor: Klaus Meyer , Dirk Baerenreuter
- Applicant: FEDERAL-MOGUL BURSCHEID GMBH
- Applicant Address: DE Burshceid
- Assignee: FEDERAL-MOGUL BURSCHEID GMBH
- Current Assignee: FEDERAL-MOGUL BURSCHEID GMBH
- Current Assignee Address: DE Burshceid
- Agency: Norris McLaughlin & Marcus, P.A.
- Priority: DE102012010756 20120531
- International Application: PCT/DE2013/000226 WO 20130425
- International Announcement: WO2013/178204 WO 20131205
- Main IPC: F16J9/20
- IPC: F16J9/20 ; F16J9/26 ; B23P15/06

Abstract:
An oil scraper piston ring and a method for producing it in which a base body is provided with a running surface profile by machining the radially outer circumferential surface thereof, the running surface profile including two running surface lands and an interposed groove, wherein the running surface profile corresponds to that of the finished oil scraper piston ring, and on the groove side, seen in the circumferential direction, drainage holes are introduced into the groove base, at least the running surface lands are provided with a wear-resistant PVD, DLC or TaC layer and, if needed, the wear-resistant layer is subjected to a polishing, honing or lapping operation.
Public/Granted literature
- US20150130143A1 METHOD FOR PRODUCING AN OIL SCRAPER PISTONG RING Public/Granted day:2015-05-14
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