Mikuni Corporation

Kokoku Intech Co., Ltd.

Nobutatsu Kan

Takumi Oikawa

Toru Tsuchiya

Yoshiyuki Kanesaka

A rotary valve that includes a rotor, and a casing including a rotor accommodating space that accommodates the rotor. A rotor opening which is a passage of cooling water is provided in the rotor. Openings which communicate with the rotor opening are provided at positions of an inner circumferential surface of the rotor accommodating space which oppose an outer circumferential surface of the rotor. Seal members are provided to extend from the openings toward the rotor. A tip end abutting portion of the seal member which abuts on the rotor includes an inwardly curved portion. The inwardly curved portion functions as a seal and also functions as a spring. The inwardly curved portion is narrowed inwardly toward a tip end side, and is curved to be folded back.

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Saitama, Japan

Nobutatsu Kan