风扇转子叶片变距机构和航空发动机
By employing a variable-angle fan rotor blade pitch mechanism and a meshing transmission design, the problem of variable-pitch aero-engine blades has been solved, achieving high flow rate regulation and high aerodynamic efficiency, and optimizing the structural design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AERO ENGINE ACAD OF CHINA
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fan rotor blade pitch technology for aero engines is difficult to achieve large flow regulation capability and high aerodynamic efficiency while ensuring stable operation, and traditional designs are heavy and structurally complex.
The fan rotor blade pitch mechanism is adopted, including components such as variable angle fan rotor blades, fan rotor hub, gear ring and drive arm. The blade angle is changed through meshing transmission. Combined with thrust bearing and radial bearing support, the structural design is optimized.
It achieves a large flow rate regulation capability and a large pressure ratio operating range for the fan rotor blades under stable operation, while reducing the size and weight of the structure and improving aerodynamic efficiency.
Smart Images
Figure CN121184394B_ABST