CONTROL DEVICE FOR CHANGING THE ANGLE OF THE BLADES OF A TAIL ROTOR FOR A HOVERING AIRCRAFT
Patent Information
- Application Number
- DE602022012313
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-10-29
- Filing Date
- 2022-06-23
- Publication Date
- 2025-03-26
- Estimated Expiration
- 2042-06-23
AI Technical Summary
Existing solutions for axially constraining the internal ring of the rolling bearing in anti-torque rotors are unreliable and difficult to maintain due to self-braking nuts, which require higher tightening torques and have limited cycle life, and can cause thread damage and misalignment issues.
A control device with a non-self-braking threaded element and a bushing that provides angular and axial fixation, using complementary profiles to prevent unscrewing and maintain axial preload, allowing for reliable and efficient axial locking without plastic deformation or misalignment.
The solution ensures reliable axial locking of the internal ring, preventing unscrewing and maintaining axial preload efficiently, reducing maintenance complexity and extending the life of the threaded element, while allowing for precise control of the anti-torque rotor's angle of attack.