Piston for internal combustion engine and method for manufacturing piston |
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| 申请号 | US14417262 | 申请日 | 2013-07-25 | 公开(公告)号 | US10006402B2 | 公开(公告)日 | 2018-06-26 |
| 申请人 | Hitachi Automotive Systems, Ltd.; | 发明人 | Masato Sasaki; | ||||
| 摘要 | An internal combustion engine piston includes a crown surface including a low thermal conductivity part lower in thermal conductivity than a base material. The low thermal conductivity part includes a porous member made of a glass material lower in thermal conductivity than the base material, and impregnated with the base material. A first material is interposed at least partly between the porous member and the base material in the low thermal conductivity part, wherein the first material is water-soluble, and has a higher melting point than the porous member. | ||||||
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| 说明书全文 | |||||||
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