Title:
中央方向オイルフローおよびピストンピン潤滑供給部を有するピストン、ならびにその構成方法
Document Type and Number:
Japanese Patent JP2012519251
Kind Code:
A
Abstract:
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.
Inventors:
Ribeiro, Carmo
Application Number:
JP2011552170A
Publication Date:
August 23, 2012
Filing Date:
February 26, 2010
Export Citation:
Assignee:
Federal-Mogul Corporation
International Classes:
F02F3/22; F02F3/00; F16J1/08; F16J1/16
Domestic Patent References:
| JPS63277843A | 1988-11-15 | |||
| JPS59168556U | 1984-11-12 |
Attorney, Agent or Firm:
Fukami patent office