Automobile water pump impeller with noise reduction effect

CN224339208UActive Publication Date: 2026-06-09FUJIAN NANAN BUSINESS MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN NANAN BUSINESS MASCH CO LTD
Filing Date
2025-08-15
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

When a traditional water pump impeller rotates at high speed, the blades can cause increased friction between the water flow and the blade surface, resulting in large-scale turbulence and eddies in certain areas. This leads to excessive noise, affects driving comfort, and may reduce the service life of the water pump and surrounding components.

Method used

The silent blades adopt a variable cross-section structure, combined with suppression blocks, guide patterns and turbulence elimination holes. Through gradual thickness, curvature design, spiral guide patterns and hemispherical turbulence elimination holes, noise is reduced and resonance is avoided.

Benefits of technology

Overall noise is reduced by 10.6dB, improving NVH performance, extending the service life of the water pump and surrounding components, and maintaining the normal operating efficiency of the water pump.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224339208U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of automobile water pump impeller with noise reduction effect, including connecting seat and several mute blades being set on connecting seat;The mute blade includes blade main body, and the blade main body bottom is fixedly connected with connecting seat, and blade main body top end is provided with suppression block;The front of blade main body is water face, and water face is provided with flow guide line;The back of blade main body is backwater surface, and backwater surface is arrayed and provided with turbulence hole.The variable cross-section structure of blade main body keeps cross-sectional moment of inertia by width and thickness synchronous gradual change, improves the overall mechanical properties of blade, prolongs water pump service life.
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