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.

CN121516253BActive Publication Date: 2026-07-17COMMERCIAL AIRCRAFT CORP OF CHINA LTD +1

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

Technical Problem

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.

Method used

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.

Benefits of technology

This design reduces the width requirement of the sling, facilitates maintenance, reduces aerodynamic drag, improves aircraft economy and maintainability, and simplifies maintenance operations.

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Abstract

本发明提供能够实现减少吊挂宽度设计要求的飞机发动机系统对接多分离面装置。飞机发动机系统对接多分离面装置包括:垂直防火墙,用于将发动机的火区与位于非火区的吊挂隔离开,外轮廓与吊挂的外轮廓相对应;以及液体管路,配置于比垂直防火墙靠前侧,且一端安装于垂直防火墙而与机身侧液体管路连接,液体管路包括至少一个第一液体管路和至少一个第二液体管路,第一液体管路在一端具有第一快卸接头,第一快卸接头与设置于垂直防火墙的防火墙侧快卸接头连接,第二液体管路在一端具有紧固接头,在另一端具有第二快卸接头,紧固接头紧固于垂直防火墙,第二快卸接头配置于比垂直防火墙靠前侧的短舱和吊挂连接处的指形罩区域。
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