Fluid switching valve

CN114922997BActive Publication Date: 2025-09-23TAIYO GIKEN INDS
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Patent Information

Application Number
CN202210055538.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-12-16
Filing Date
2022-01-18
Publication Date
2025-09-23
Estimated Expiration
2042-01-18

AI Technical Summary

Technical Problem

The existing switching valve has problems of fluid leakage and large sliding resistance in the rotary sliding structure between the valve and the valve chamber. In particular, when the sealing force of the sealing component is increased, the resistance during rotation and sliding is too large.

Method used

The eccentrically designed sealing component can reliably seal the fluid inlet and outlet passages when rotating, and achieves sealing through the change in wall thickness and elastic function of the sealing component to reduce sliding resistance.

Benefits of technology

The sliding resistance between the valve portion and the valve chamber is effectively reduced, and the fluid inlet and outlet passages are reliably sealed, thereby improving the durability of the sealing component and the convenience of assembly.

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Patent Text Reader

Abstract

The present disclosure provides a fluid switching valve that reduces the sliding resistance when the valve portion and the valve chamber rotate, and reliably seals the fluid. It is provided with a sealing component that rotates integrally with the valve portion in the valve chamber and closes one of the fluid inlet passage and the fluid outlet passage. The position of the rotation center axis of the sealing component during rotation is eccentric relative to the position of the center axis of the valve chamber, and the radial position of the sealing component is displaced according to the rotation. The displacement is used to press the sealing component against one of the fluid inlet passage and the fluid outlet passage to reliably seal. In addition, during rotation, the displacement is used to move the sealing component in a direction away from the valve chamber, thereby reducing the sliding resistance caused by the rotation.
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Citation Information

Patent Citations

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    JP1985185769U

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  • Plug valve

    JP1985078171A