发明公开
- 专利标题： PISTON WITH CENTRAL DIRECTIONAL OIL FLOW AND WRIST PIN LUBRICATION FEATURE AND METHOD OF CONSTRUCTION THEREOF
- 专利标题（中）： 根据上述制造中心方向的油流和活塞销润滑和过程活塞
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申请号： EP10746870申请日： 2010-02-26
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公开(公告)号： EP2401529A4公开(公告)日： 2015-01-14
- 发明人: RIBEIRO CARMO
- 申请人： FEDERAL MOGUL CORP
- 专利权人： FEDERAL MOGUL CORP
- 当前专利权人： FEDERAL MOGUL CORP
- 优先权： US15594509 2009-02-27
- 主分类号： F16J1/08
- IPC分类号： F16J1/08 ; F01M7/00 ; F02F1/20
摘要：
A piston has a piston body extending along a central axis. The piston body has an upper crown portion and a lower crown portion. The upper crown portion has an upper combustion wall and an at least one annular upper rib depending from the upper combustion wall to a free end. The lower crown portion has at least one annular lower rib extending to a free end that is fixed to the at least one upper rib and an inner gallery floor extending radially inwardly relative to the at least one lower rib. The upper crown portion has an upper post depending from the upper combustion wall along the central axis to a free end. The lower crown portion has a lower post extending upwardly from the inner gallery floor along the central axis to a free end. Together, the upper post and the lower post form a labyrinth passage.
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