Honda Motor Co., Ltd.

Noriyuki Takegata

Mitsuru Sugimoto

Satoshi Yamamura

Hisao Uozumi

Makoto Yamazaki

An internal combustion engine includes an anisotropic thermal conductivity member () provided on a wall surface defining a cylinder or a wall surface of a cooling water passage on a side of the cylinder, a thermal conductivity of the anisotropic thermal conductivity member in an axial direction of the cylinder being higher than a thermal conductivity of the anisotropic thermal conductivity member in a radial direction of the cylinder, and a thermally insulating member () provided on an outer surface of the anisotropic thermal conductivity member with respect to the radial direction of the cylinder.

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Wako, Japan

Noriyuki Takegata