一种分布式飞机起落架收放能源装置
By using a distributed layout and dual-redundant control system for the aircraft landing gear retraction and extension energy device, the problems of complexity and maintenance difficulty of centralized hydraulic systems have been solved, achieving the effects of simplifying hydraulic pipelines and improving maintainability and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
- Filing Date
- 2024-03-29
- Publication Date
- 2026-07-17
AI Technical Summary
The existing centralized hydraulic system for aircraft landing gear has complex piping, is difficult to maintain, and consumes a lot of energy. Furthermore, the existing electric retraction and extension system is not suitable for medium and large landing gear.
The aircraft landing gear retraction and extension power unit adopts a distributed layout, with each unit placed close to the landing gear. It includes a motor pump, a pressurized oil tank, an electromagnetic isolation valve, a hydraulic check valve, a high-pressure safety valve, and a retraction and extension controller. It adopts dual-redundant control, the motor pump is fully immersed in oil, fault isolation is achieved through electromagnetic isolation valve, the rotary seal is eliminated, and the hydraulic interface is arranged vertically.
The hydraulic lines have been simplified, maintainingability and reliability have been improved, and highly reliable landing gear retraction and extension have been achieved. The structure is compact and the size is small, which facilitates mechanical and electrical connection operations.
Smart Images
Figure CN118220474B_ABST