HEAT INSULATION STRUCTURE OF ENGINE COMBUSTION CHAMBER COMPONENT, AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To prevent generation of a crack and peeling by applying to a heat insulation layer a material having a thermal expansion coefficient closer to that of a base material of an engine component, to prevent deformation due to a combustion pressure and so on by strengthening the heat insulation layer, and to prevent penetration of fuel.SOLUTION: In a heat insulation structure in which a heat insulation layer is formed on a surface of a base material of a component constituting an engine combustion chamber, the heat insulation layer 11 includes a silicone resin composition containing a cage type silsesquioxane structure, and hollow particles 12.