Device for fixing turbomachine modules

WO2025242985A1PCT designated stage Publication Date: 2025-11-27SAFRAN AIRCRAFT ENGINES SAS
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Patent Information

Application Number
PCT/FR2025/050418
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-24
Filing Date
2025-05-15
Publication Date
2025-11-27

AI Technical Summary

Technical Problem

The existing fastening devices for turbomachine modules are complex and difficult to use due to restricted access, requiring additional pins and multiple nuts that complicate the assembly process.

Method used

A fastening device comprising a main nut with two internal threads, a retaining nut, and an intermediate nut with serrated edges that allow for rotational fixation and axial mobility, simplifying the assembly by eliminating the need for additional pins and facilitating screwing operations.

Benefits of technology

The new fastening device simplifies the assembly process by allowing easier access and reducing the complexity of screwing operations, making it more efficient and user-friendly.

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    Figure FR2025050418_27112025_PF_FP_ABST
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Abstract

A device (40) for fixing turbomachine modules, this device (40) comprising: - a first nut (50), called the main nut, - a second nut (52), called the retaining nut, which comprises an external thread (62) able to cooperate with the first nut (50), and - a third nut (54), called the intermediate nut (54), this intermediate nut (54) being axially movable in the first nut (50).
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Citation Information

Patent Citations

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    FR3140124A1

  • Clamping assembly

    US20100329776A1

  • Aircraft turbine engine equipped with an electrical machine

    US20210396141A1