Propulsion unit for an aircraft

CN122249634APending Publication Date: 2026-06-19SAFRAN AIRCRAFT ENGINES SAS +1

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: SAFRAN AIRCRAFT ENGINES SAS
Filing Date: 2024-11-25
Publication Date: 2026-06-19

AI Technical Summary

Technical Problem

In the prior art, fluid connection devices for aircraft propulsion units are bulky, costly, space-consuming, and uneconomical due to the use of flexible hoses, and they are also difficult to adapt to relative movement between movable and fixed surfaces.

Method used

The system employs rigid fluid flow pipes and interlocking connectors, achieving self-sealing of the fluid connection device through a convex-concave fit. This adapts to the relative movement of the movable surface relative to the fixed surface, ensuring the opening and closing of the fluid channel at different positions.

Benefits of technology

This enables fluid connection devices to adapt to the movement of movable surfaces relative to fixed surfaces without occupying additional space, reducing weight and cost while improving system flexibility and efficiency.

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Figure CN122249634A_ABST

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Abstract

The present invention relates to a propulsion unit (1) comprising a turbine having a longitudinal axis, a nacelle, a first element (E1), a second element (E2), and a fluid circuit (70), the second element being translatable relative to the first element in a direction parallel to the longitudinal axis between a first position and a second position, the nacelle comprising at least one of the first and second elements, the propulsion unit being characterized in that the fluid circuit (70) comprises a first conduit (71) and a second conduit (72), the first and second conduits being fixed to the first and second elements respectively, and comprising a first interlock connector and a second interlock connector (73, 74) respectively, the first and second interlock connectors being configured to cooperate with each other to allow fluid to flow between the first and second conduits when the second element is in the first position, and to prevent fluid flow when the second element is in the second position.

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