一种叶片叶根变厚度的压气机叶轮及涡轮增压器
By designing the blade root thickness to be distributed in a "hump" shape along the blade root length, the problem of balancing mass, inertia, and frequency in blade thickness distribution was solved, achieving reduced blade mass, lower inertia, and increased stiffness, thus avoiding high-cycle fatigue failure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI WEIFU HIGH TECH CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-17
AI Technical Summary
The thickness distribution of existing compressor impellers along the blade root length direction makes it difficult to simultaneously improve the blade's natural frequency, reduce mass, and decrease rotational inertia.
The design of the leaf root thickness shows a "hump" distribution along the length of the leaf root, with the front section of the leaf being the thickest and the rear section thinning rapidly and then slowly. Combined with linear interpolation extrapolation, it is calculated that the thickness of the front section is more than 1.2 times that of the rear section.
This reduces blade mass and moment of inertia, improves blade structural stiffness and natural frequency, avoids high-cycle fatigue failure, and reduces centrifugal load.
Smart Images
Figure CN120969248B_ABST