Electric valve
By designing the guide sleeve in the electric valve to have an annular arc surface and a rotating curved surface as the guiding surface, the fluid flow path is optimized, the noise problem during fluid flow is solved, the smooth and efficient fluid flow is achieved, the noise peak is reduced, and the working environment is improved.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO LTD
- Filing Date
- 2026-01-29
- Publication Date
- 2026-07-23
AI Technical Summary
Existing electric valves generate significant noise during fluid flow, primarily due to the concentrated fluid flow and high velocity, which causes the fluid to scour the edges of the valve port or guide sleeve, resulting in noise.
The guide sleeve is designed with an annular arc surface, and by combining reasonable h and r1-r2 values, the fluid flow path is optimized, reducing flow resistance and noise. The guide surface is an arc surface that convexes from the inside out or concave from the outside in radially, combined with a rotational curved surface design to ensure smooth fluid flow. The guide sleeve includes first and second sleeve sections, providing stable support. The valve core structure seals against the inner wall of the guide sleeve, reducing friction and noise.
By optimizing the fluid flow path, noise during fluid flow was reduced, lowering the noise peak from 96.5dB to 85.4dB, improving the working environment and avoiding impacts on users' hearing and physical health.
Smart Images
Figure CN2026075816_23072026_PF_FP_ABST