Radiator with reduced solar irradiation and improved guidance system for geostationary satellite

    公开(公告)号:US11685556B2

    公开(公告)日:2023-06-27

    申请号:US17802344

    申请日:2021-02-09

    CPC classification number: B64G1/503 B64G1/10 B64G1/222

    Abstract: A radiator for a geostationary satellite is disclosed having a radiative panel perpendicular to a radiation axis, and pivoting relative to the radiation axis, a mounting foot for the panel, a motor which rotates the mounting foot about a rotation axis, the radiation axis and the rotation axis being tilted relative to each other by an angle corresponding to the angle of the satellite's orbital plane relative to the ecliptic plane of the planet, and a guidance system for the panel, limiting rotation of the panel about the rotation axis, including a connecting arm pivoting relative to the satellite about a first axis and relative to the panel about a second axis concurrent with the first axis at a point of intersection of all the axes.

    Spacecraft
    2.
    发明授权

    公开(公告)号:US10676218B2

    公开(公告)日:2020-06-09

    申请号:US16303776

    申请日:2017-05-23

    Abstract: Disclosed is a spacecraft including a casing having a face, a radiator borne by the face, and a thermal insulation device borne by the radiator. The thermal insulation device includes: —a first screen device able to cover a first zone of the radiator, the first screen device including a thermally insulating and flexible sheet, and at least two springs capable of producing a constant reaction force, the springs being preformed in such a way as to wind up on themselves at rest and being fixed to the insulating sheet, the springs each having an end fixed to the radiator and a free end; and—a traction device able to pull on the free end of the springs to make the sheet cover the first zone and to release the free end in order to expose the first zone to space.

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