飞机发动机系统对接多分离面装置
By optimizing the liquid piping and EWIS cable layout of the aircraft engine system, the problem of limited space in the vertical firewall structure was solved, resulting in a reduction in the width of the sling and improved maintainability, thereby enhancing the aircraft's economy and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- COMMERCIAL AIRCRAFT CORP OF CHINA LTD
- Filing Date
- 2026-01-06
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing aircraft engine system mounting design, the vertical firewall structure has limited space, resulting in fuel and hydraulic quick-release joints occupying a large space, affecting maintenance and operation space, increasing aerodynamic drag, and impacting aircraft economy and maintainability.
The design adopts a vertical firewall that corresponds to the outer contour of the hanger. Liquid pipelines are configured on the front side of the firewall. Some pipelines are installed on the firewall through fastening joints, and the other end is equipped with a quick-release joint at the hanger connection. EWIS cables pass through the firewall through a through hole and are sealed. This optimizes the pipeline and cable layout and reduces the design requirements for hanger width.
This design reduces the width requirement of the sling, facilitates maintenance, reduces aerodynamic drag, improves aircraft economy and maintainability, and simplifies maintenance operations.
Smart Images

Figure CN121516253B_ABST