Mazda Motor Corporation

Ken Sakamoto

Tsutomu Shigenaga

Masaya Minato

Hiroyuki Koga

Chiaki Asano

Yuki Nakanishi

A method of applying heat shield material to form a heat shield layer on a crown surface of a piston of an engine is provided. The method includes the steps of disposing a dispenser that linearly discharges the heat shield material toward the crown surface, and moving an applied position of the heat shield material with respect to the crown surface in a circumferential direction of the crown surface, while discharging the heat shield material from the dispenser toward the crown surface.

Method of applying heat shield material to piston

A coating composition for forming a coating film including particles and a resin binder is so configured that a content of the particles in the coating film is more than 30 vol%, the coating composition includes the particles, a raw resin of the resin binder, and a solvent, and a ratio V/D is 2.5 or less, where V is a volatilization rate (g/m&#xb7;s) of the solvent, and D is a diffusion coefficient (10m/s) of the solvent in the coating composition.

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Hiroshima, Japan

Ken Sakamoto