发明授权
- 专利标题: Engine piston with rolling element skirt
- 专利标题(中): 发动机活塞带滚动元件裙
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申请号: US12103723申请日: 2008-04-16
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公开(公告)号: US07938058B2公开(公告)日: 2011-05-10
- 发明人: Edward P. Becker , Emerson J. Adams , Anil K. Sachdev
- 申请人: Edward P. Becker , Emerson J. Adams , Anil K. Sachdev
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations LLC
- 当前专利权人: GM Global Technology Operations LLC
- 当前专利权人地址: US MI Detroit
- 主分类号: F16J1/02
- IPC分类号: F16J1/02 ; F16C29/04
摘要:
The present invention utilizes rolling elements, such as balls or rollers acting as bearings carried in openings in the skirt or equivalent portion of a piston, to engage the cylinder walls and replace the sliding bearings of the skirt with the roller elements in the skirt. The rolling elements then absorb all or some of the thrust loads conventionally absorbed by the skirt walls sliding along surfaces of an associated cylinder and thereby reduce the friction forces developed by the reciprocating action of the piston skirt.
公开/授权文献
- US20090260517A1 ENGINE PISTON WITH ROLLING ELEMENT SKIRT 公开/授权日:2009-10-22