Interlocking constant-pressure valve
The interlocking constant pressure valve stabilizes fluid pressure control by using a link member and elastic body to dampen vibrations and resist sliding, addressing pressure fluctuations caused by temperature changes.
WO2026134253A1PCT designated stage Publication Date: 2026-06-25ASAHI YUKIZAI KOGYO CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ASAHI YUKIZAI KOGYO CO LTD
- Filing Date
- 2025-12-17
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Existing pressure valves fail to suppress pressure fluctuations and pressure fluctuations in the fluid pressure of the fluid pressure due to temperature changes, leading to unstable fluid pressure control, particularly in high-temperature environments.
Method used
An interlocking constant pressure valve design with a link member and elastic body configuration that stabilizes diaphragm positions, preventing pressure fluctuations by generating sliding resistance and damping vibrations, even at high temperatures.
Benefits of technology
The design maintains stable fluid pressure control by suppressing pressure oscillations and resonances, ensuring consistent fluid pressure regulation regardless of temperature changes.
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Smart Images
Figure JP2025044082_25062026_PF_FP_ABST
Abstract
An interlocking constant-pressure valve (11) comprises: a valve housing in which a first valve chamber (23), a second valve chamber (31), and a communication path (37) that allows the first and second valve chambers to communicate with each other are formed; a valve seat (39) formed in the communication passage (37); a first diaphragm (41) disposed within the first valve chamber and supporting a valve body portion (41a) so as to be movable relative to the valve seat in a movement axis direction; a second diaphragm (43) disposed within the second valve chamber; a rod-shaped link member (77) extending in the movement axis direction along the outside of the first valve chamber and the second valve chamber in the valve housing; and an elastic body (79) in compressed contact with an outer peripheral surface of the link member, wherein the link member is configured to operate in conjunction with the first diaphragm and the second diaphragm.
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