RADIATOR WITH REDUCED SOLAR IRRADIATION AND IMPROVED GUIDANCE SYSTEM FOR GEOSTATIONARY SATELLITE

    公开(公告)号:US20230095742A1

    公开(公告)日:2023-03-30

    申请号:US17802344

    申请日:2021-02-09

    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.
    发明申请
    SPACECRAFT 审中-公开

    公开(公告)号:US20190337645A1

    公开(公告)日:2019-11-07

    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.

    SPACECRAFT
    3.
    发明申请
    SPACECRAFT 审中-公开

    公开(公告)号:US20190337646A1

    公开(公告)日:2019-11-07

    申请号:US16303376

    申请日:2017-05-23

    Abstract: Disclosed is a spacecraft including a body having a face, a radiator carried by the face, and a thermal insulation device capable of thermally insulating the body from the space environment. The thermal insulation device includes a flexible insulating sheet that is movable between an unfolded position in which the flexible sheet covers a coverable area of the radiator, and a position folded on itself in which the coverable area of the radiator is exposed to the space environment. The flexible sheet includes multiple pleats which extend perpendicularly to the direction of movement of the flexible sheet, the pleats being folded against one another when the flexible sheet is in the folded position, the pleats being spaced apart from one another when the flexible sheet is in an unfolded position.

    SPACECRAFT COMPRISING AN ELECTRICAL DEVICE AND AN ORIENTATION SYSTEM FOR SAID ELECTRICAL DEVICE

    公开(公告)号:US20240359830A1

    公开(公告)日:2024-10-31

    申请号:US18686357

    申请日:2022-08-23

    CPC classification number: B64G1/428 B64G1/413 F03H1/0037

    Abstract: A spacecraft is disclosed including a frame, an electrical device powered and/or controlled by electrical cables, and a system for orienting the electrical device, which orientation system includes at least two rotary actuators with non-parallel axes (Δa, Δb), a junction part between the two rotary actuators, one or more guide forks, arranged outside the junction part and fastened to the latter, each guide fork including fingers configured to support the electrical cables and to form a guide path for said cables so that the electrical cables never exert, on the rotary actuators, a torque higher than the torque capacity of the actuators, at least one of the forks having a main axis which passes through the center of intersection of the axes of rotation of the actuators.

Patent Agency Ranking