发明名称 |
PISTON FOR INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE INCLUDING THIS PISTON, AND MANUFACTURING METHOD OF THIS PISTON |
摘要 |
There is provided a piston for an internal combustion engine, the piston including: a heat-shielding film provided to an upper surface of a land part of the piston, the heat-shielding film having a lower thermal conductivity than a piston base material and having a lower heat capacity per unit volume than the piston base material; and a first heat-retaining film provided to a side surface of the land part, the first heat-retaining film having a lower thermal conductivity than the piston base material and having a higher heat capacity per unit volume than the heat-shielding film. |
申请公布号 |
US2016273483(A1) |
申请公布日期 |
2016.09.22 |
申请号 |
US201615070347 |
申请日期 |
2016.03.15 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
YAMASHITA Hideo |
分类号 |
F02F3/10 |
主分类号 |
F02F3/10 |
代理机构 |
|
代理人 |
|
主权项 |
1. A piston for an internal combustion engine, the piston comprising:
a heat-shielding film provided to an upper surface of a land part of the piston, the heat-shielding film having a lower thermal conductivity than a piston base material and having a lower heat capacity per unit volume than the piston base material; and a first heat-retaining film provided to a side surface of the land part, the first heat-retaining film having a lower thermal conductivity than the piston base material and having a higher heat capacity per unit volume than the heat-shielding film. |
地址 |
Toyota-shi JP |