Multiple push-down separation device for spacecraft

JP2026096953APending Publication Date: 2026-06-15エアバス ディフェンス アンド スペースソシエダ アノニマ
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Patent Information

Application Number
JP2025210029
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-03
Filing Date
2025-12-01
Publication Date
2026-06-15

AI Technical Summary

Technical Problem

Current spacecraft separation systems induce high impact on satellites due to the use of multiple discrete release actuators, which are costly and unreliable, especially for medium and large satellites.

Method used

A multi-compartmental depression and separation device with a central structure, comprising coaxially arranged members, elastic means, and press-down assemblies, using non-explosive actuators for synchronized separation, reducing impact and cost through geometric simplification and single actuator operation.

Benefits of technology

The device achieves lower shock transmission, reduced manufacturing costs, and increased flexibility in interface positioning, allowing for easy installation and preload, while minimizing impact on the satellite.

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Abstract

We provide a multi-compartmental depressure separation device for spacecraft. [Solution] The multiple depressor separation device 1 comprises a central structure 2 comprising a first member 3 and a second member 4 arranged coaxially around an axis and configured to have relative axial movement, elastic means 7, 7' that contact the inner surfaces of the first member 3 and the second member 4, a removal bolt 8 connected to the second member 4, and an actuator 9 connected to the removal bolt 8 of the central structure 2 and connected to the first member 3 through a support 10; at least two inclined guides 11 projecting radially from the central structure 2, at least two arms 12 each having a first portion 12' and a second portion 12'', at least two connecting levers 16 having a joint 17, and at least two depressor assemblies 26 on the periphery of the device 1 having a depressor support 18 and a depressor portion 20.
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Citation Information

Patent Citations

  • Multiple hold-down and release device for spacecraft, and methods for releasing a spacecraft from a dispenser of a launcher and for installing a multiple hold-down and release device for spacecraft

    WO2020249831A1