| 摘要 |
PROBLEM TO BE SOLVED: To easily obtain a heat insulation structure of an engine combustion chamber member having a heat insulation layer which absorbs a thermal expansion coefficient difference from a base material of an engine component thereby preventing the occurence of cracks and peeling and prevents fuel penetration.SOLUTION: In a heat insulation structure of an engine combustion chamber, a heat insulation layer 21 is provided on a combustion chamber wall surface of a member which faces an engine combustion chamber and the heat insulation layer 21 includes a resin layer 27 which includes a silicone resin and hollow particles and a metal foil layer 29 provided on a surface of the resin layer 27. |
