| 发明名称 |
PISTON RING |
| 摘要 |
A piston ring for an internal combustion engine may include a metal base and a protective coating disposed on the base to cover at least part of a surface of the base. The coating may be composed of at least one nitride phase formed from at least one metal element and alimunium, and the coating may have an internal stress of less than 1.2 GPa. |
| 申请公布号 |
US2016298764(A1) |
申请公布日期 |
2016.10.13 |
| 申请号 |
US201415101339 |
申请日期 |
2014.12.03 |
| 申请人 |
MAHLE METAL LEVE S/A ;MAHLE INTERNATIONAL GMBH |
发明人 |
Ciminelli Duarte De Souza Mauricio |
| 分类号 |
F16J9/26 |
主分类号 |
F16J9/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A piston ring for an internal combustion engine comprising: a metal base and a protective coating disposed on the base to cover at least part of a surface of the base, wherein the coating is composed of at least one nitride phase formed from at least one metal element and aluminium (Al), and wherein the coating has an internal stress of less than 1.2 GPa. |
| 地址 |
Jundiaí, Sao Paulo BR |
