发明名称 |
Oil retention in the bore/piston interfaces of ported cylinders in opposed-piston engines |
摘要 |
An opposed piston engine includes at least one cylinder with a bore surface and longitudinally-spaced exhaust and intake ports that open through the sidewall of the cylinder. A pair of opposed pistons is disposed in the cylinder for sliding movement along the bore surface. An oil-retaining surface texture pattern in an interface between the pistons and the bore surface extends in a longitudinal direction of the cylinder, aligned with bridges of at least one port. The surface texture pattern includes a plurality of separate recesses on an outside surface of a skirt of each piston. Alternatively, or in addition, the surface texture pattern includes a plurality of separate recesses extending in a longitudinal direction of the cylinder, aligned with bridges of at least one port. |
申请公布号 |
US2012186561(A1) |
申请公布日期 |
2012.07.26 |
申请号 |
US20110931199 |
申请日期 |
2011.01.26 |
申请人 |
BETHEL STEVEN J.;CALLAHAN BRIAN J.;WAGNER BRYANT A.;ACHATES POWER, INC. |
发明人 |
BETHEL STEVEN J.;CALLAHAN BRIAN J.;WAGNER BRYANT A. |
分类号 |
F02B75/28;F01M9/00;F16J1/08 |
主分类号 |
F02B75/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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