| 发明名称 | Piston ring for engine | ||
| 摘要 | Disclosed is a piston ring for engine that includes chromium (Cr) coating layer coated on the surface of a base material of the piston ring of an engine; a chromium nitride (CrN) coating layer; and a silicon-incorporated diamond-like carbon (Si-DLC) coating layer, which is formed on the CrN coating layer, and contains Si component of about 3˜10 at %, and a method for manufacturing thereof. | ||
| 申请公布号 | US9482343(B2) | 申请公布日期 | 2016.11.01 |
| 申请号 | US201213611177 | 申请日期 | 2012.09.12 |
| 申请人 | Hyundai Motor Company | 发明人 | Shim So Jung;An Jeong Uk |
| 分类号 | F16J9/00;F16J9/26 | 主分类号 | F16J9/00 |
| 代理机构 | Mintz Levin Cohn Ferris Glovsky and Popeo, P.C. | 代理人 | Mintz Levin Cohn Ferris Glovsky and Popeo, P.C. ;Corless Peter F. |
| 主权项 | 1. A piston ring for an engine comprising: a chromium (Cr) coating layer coated on the surface of a base material; a chromium nitride (CrN) coating layer coated on the Cr coating layer; and a silicon-incorporated diamond-like carbon (Si-DLC) coating layer, which is formed on the CrN coating layer, and alternately laminated with low content layers containing a first Si component of 3 at % or less (not including 0 (zero)) and high content layers containing a second Si component of more than 3 at % and 10 at % or less, wherein a rigidity of the low content layers is higher than that of the high content layers, wherein the low content layers and the high content layers are essentially the same except for the Si content. | ||
| 地址 | Seoul KR | ||