发明申请
US20150130143A1 METHOD FOR PRODUCING AN OIL SCRAPER PISTONG RING 有权
用于生产油封垫圈的方法

  • 专利标题: METHOD FOR PRODUCING AN OIL SCRAPER PISTONG RING
  • 专利标题(中): 用于生产油封垫圈的方法
  • 申请号: US14401946
    申请日: 2013-04-25
  • 公开(公告)号: US20150130143A1
    公开(公告)日: 2015-05-14
  • 发明人: Klaus MeyerDirk Baerenreuter
  • 申请人: FEDERAL-MOGUL BURSCHEID GMBH
  • 优先权: DE102012010756.0 20120531
  • 国际申请: PCT/DE2013/000226 WO 20130425
  • 主分类号: F16J9/20
  • IPC分类号: F16J9/20 B23P15/06
METHOD FOR PRODUCING AN OIL SCRAPER PISTONG RING
摘要:
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.
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