| 发明名称 |
PISTON RING FOR INTERNAL COMBUSTION ENGINE |
| 摘要 |
Provided is a piston ring for an internal combustion engine capable of preventing aluminum cohesion for a long time under conditions with high temperature and a high load and also suppressing the wearing of a piston member. A piston ring 1 for the internal combustion engine including a piston ring body 11 having at least one of an upper side face and a lower side face coated with an aluminum cohesion resistance film 12, wherein the aluminum cohesion resistance film 12 has a first coating film 12a made of first ceramics material formed on the piston ring body and a second coating film having Vickers hardness HV smaller than that of the first ceramics material formed on the first coating film 12a. |
| 申请公布号 |
US2016265660(A1) |
申请公布日期 |
2016.09.15 |
| 申请号 |
US201415030123 |
申请日期 |
2014.10.16 |
| 申请人 |
KABUSHIKI KAISHA RIKEN |
发明人 |
SASAKI Hayato;ONO Takashi;YAN Yongtie |
| 分类号 |
F16J9/22;F16J9/28;F16J9/26 |
主分类号 |
F16J9/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A piston ring for an internal combustion engine including a piston ring body having at least one of an upper side face and a lower side face coated with an aluminum cohesion resistance film, wherein
the aluminum cohesion resistance film has a first coating film made of first ceramics material formed on the piston ring body and a second coating film having Vickers hardness HV smaller than that of the first ceramics material formed on the first coating film. |
| 地址 |
Chiyoda-ku, Tokyo JP |
