AIRCRAFT PROPELLER ASSEMBLY, INCLUDING AN IMPROVED MOUNTING SYSTEM FOR ARTICULATING A MOVABLE COVER ON A SUPPORT STRUCTURE

The mounting system for aircraft propulsion systems addresses the challenge of accommodating a connecting rod within the propulsion assembly by embedding it within the hood, reducing interference and ensuring secure engagement with the turbomachine.

FR3168864A1Pending Publication Date: 2026-05-29SAFRAN NACELLES
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
SAFRAN NACELLES
Filing Date
2024-11-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing aircraft propulsion systems face challenges in optimizing the design to accommodate a connecting rod within the propulsion assembly without exceeding aerodynamic lines and preventing interference during cowling operations, while ensuring sufficient space for flexibility and engagement with other components.

Method used

A mounting system for movable cowlings on a support structure that includes a connecting rod with a first mechanical linkage centered on the articulation axis, allowing the rod to be partially embedded within the hood, and utilizing pivot joints or ball joints to facilitate installation and reduce interference.

Benefits of technology

The solution provides flexibility and reduces interference, enabling the connecting rod to be positioned away from congested areas, allowing for efficient cowling movement and secure engagement with the turbomachine, while maintaining aerodynamic integrity.

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Abstract

The invention relates to an assembly (200) for an aircraft propulsion system, comprising a support structure (104), and a first movable cowl (4a) pivotally mounted at one end on the support structure, about a cowl hinge axis (8a). The assembly includes a mounting system (6a) for the first movable cowl on the support structure (104). The mounting system includes a first mounting device (10a) forming a hinge centered on the hinge axis, and a second mounting device (12a) including a connecting rod (14a) having a first connecting rod end mounted on the support structure (104) via a first mechanical linkage (15a), and a second connecting rod end mounted on the first movable cowl (4a) via a second mechanical linkage (16a). According to the invention, the first mechanical linkage (15a) is centered on the cowl hinge axis (8a).Figure for the abbreviation: Figure 3.
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