导叶调节机构、设计方法及航空发动机
By designing a hydraulic actuation mechanism and an electronically controlled regulator to drive the rotation of the inlet guide vanes in small and medium-sized aero engines, the problems of complex force transmission structure and high cost were solved, and high-precision guide vane adjustment and a wider stable working range were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AECC HUNAN AVIATION POWERPLANT RES INST
- Filing Date
- 2026-06-17
- Publication Date
- 2026-07-17
AI Technical Summary
The power mechanism of the adjustable guide vanes of small and medium-sized aero engines is limited by space, which means that the force transmission structure needs to pass through the casing and the outer bypass channel, resulting in a complex structure, high cost, and the use of a rotary sealing structure.
Design a guide vane adjustment mechanism, in which a hydraulic actuation mechanism is located inside the casing body and an adjustment device is located outside the casing body. The mechanism is connected by a pipeline to realize the input or output of hydraulic oil to drive the inlet guide vane to rotate. The transmission components include a transmission rod and a linkage ring, and an electronic control regulator is used to precisely control the flow rate and pressure of the hydraulic oil.
It achieves high-precision adjustment of the imported guide vanes, reduces force transmission components, shortens the force transmission path, reduces the complexity of the engine structure, widens the stable operating range of the high-pressure compressor, and improves safety margin without affecting performance.
Smart Images
Figure CN122407609A_ABST