Mikuni Corporation

Shoichi Ishiguchi

Masato Kumamoto

Yasuhiro Tochigi

Yoshio Shibuya

The rotary valve device includes a valve, a housing H having a joining surfacelocated at ends of a fitting holeand a through hole, a thermostatpartially accommodated in the through hole, a cylindrical seal member, an urging spring, and a passage member. The passage memberincludes a cylindrical holding memberthat is fitted into the fitting holeand holds the cylindrical seal memberand the urging spring, and a connector member. The connector memberincludes an annular fitting recessinto which a part of the cylindrical holding memberis fitted, and a detour passagethat is divided from the fitting recess by a wall portion to partially accommodate the thermostat and bypasses the cylindrical seal member to communicate with the through hole.

Rotary valve device

A rotary-type valve device is provided, and includes: a tubular valve having an inner passage Ip and opening parts opened in an outer circumferential wall and rotating about a predetermined axial line a shaft rotating integrally with the valve, a housing accommodating the valve, supporting the shaft to be able to turn, and defining a communication port causing the inner passage to communicate with outside; a passage member assembled in the housing such that that the passage member abuts on an outer circumferential wall of the valve and defining a radial-direction passage. The valve includes a recessed part in the axial line direction and surrounding one end part of the shaft. The housing includes a tube part inserted into the recessed part and supporting the one end part and a support hole supporting the other end part of the shaft.

Rotary-type valve device

A rotary-type valve device includes: a tubular valve having an inner passage and opening parts opened in an outer circumferential wall from the inner passage toward an outward side in a radial direction; a housing accommodating the valve and turnably supports the valve; a tubular passage member assembled in the housing such that the passage member abuts on the outer circumferential wall of the valve and defining a radial-direction passage; and a biasing spring biasing the passage member toward the outer circumferential wall The passage member includes an abutting member abutting on the outer circumferential wall, and an intervening member having an annular pressing part intervening between the abutting member and the biasing spring and partially pressurizing the abutting member. The abutting member includes an annular sealing surface aligned with the annular pressing part in a biasing direction of the biasing spring.

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Kanagawa, Japan

Shoichi Ishiguchi