正负压密封方式流体流量和开闭控制器
By designing a fluid flow and opening/closing controller with positive and negative pressure sealing, and using system pressure for sealing, the high cost and short lifespan of the three-way valve in the air circuit of the hydrogen fuel cell are solved, achieving low-cost, low-friction sealing effect and space saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JINHUA HYDROGEN TECH CO LTD
- Filing Date
- 2022-11-24
- Publication Date
- 2026-07-17
AI Technical Summary
The lack of suitable three-way valves in the air circuit of existing hydrogen fuel cells leads to high costs and increased space requirements. Furthermore, existing three-way valves have short lifespans in high-temperature, dry gas environments and cannot meet the requirements of the air circuit.
Design a fluid flow and opening/closing controller with positive and negative pressure sealing. The controller uses the positive and negative pressure generated by the system for sealing and releases pressure during rotation to reduce friction. It adopts a structure of central shaft, side baffle and sealing element, combined with spring to compensate for tolerances, and is suitable for gas and liquid circuits.
It achieves a low-cost, low-friction sealing effect, reduces the number of seals used, reduces wear, extends service life, and is suitable for both gas and liquid circuits, reducing space and cost requirements.
Smart Images
Figure CN115750835B_ABST