Sliding assembly |
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| 申请号 | US14907274 | 申请日 | 2014-07-23 | 公开(公告)号 | US09915220B2 | 公开(公告)日 | 2018-03-13 |
| 申请人 | Mahle Metal Leve S/A; Mahle International GmbH; | 发明人 | Antonio E. Meirelles Tomanik; | ||||
| 摘要 | A sliding assembly for utilization in an internal combustion engine may include at least one piston ring and a cylinder head provided with a through cavity defining an internal surface. The internal surface may define a TDC portion in a proximity of a top dead center, a central portion, and a BDC portion in a proximity of bottom dead center. The TDC portion, central portion, and BDC portion may present surface finishes having a first roughness, a second roughness, and a third roughness, respectively, each defined by a structure of recesses and projections, at least one of which may be substantially uniform. The second roughness may be less than the first roughness value. The piston ring may present at least part of a contact surface upon which a ceramic coating may be applied by a physical vapor deposition. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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