System and Method for Shape Memory Alloy Thermal Interface

    公开(公告)号:US20180305043A1

    公开(公告)日:2018-10-25

    申请号:US15494315

    申请日:2017-04-21

    Abstract: An apparatus includes a thermally conductive interface assembly including a first component associated with a first interface surface and a second component associated with a second interface surface. The apparatus also includes a shape memory alloy component coupled to the thermally conductive interface assembly and configured to move one or more components of the thermally conductive interface assembly between a first state and a second state based on a temperature of the shape memory alloy component. In the first state, the first interface surface is in physical contact with the second interface surface, and in the second state, a gap is defined between the first interface surface and the second interface surface.

    THERMAL MANAGEMENT SYSTEMS INCORPORATING SHAPE MEMORY ALLOY ACTUATORS AND RELATED METHODS

    公开(公告)号:US20190257599A1

    公开(公告)日:2019-08-22

    申请号:US15901779

    申请日:2018-02-21

    Abstract: Thermal management systems incorporating shape memory alloy (SMA) actuators and related methods. A thermal management system includes a heat transfer region, a process fluid conduit, a thermal management fluid conduit, and an SMA actuator assembly. The SMA actuator assembly includes an SMA element coupled to an actuation element, which is configured to assume a position among a plurality of positions defined between a restrictive position and an open position. The position of the actuation element is based, at least in part, on a conformation of the SMA element. A method of passively regulating a temperature of a process fluid includes conveying a process fluid stream in heat exchange relation with an SMA element, transitioning the SMA element to assume a conformation, flowing each of the process fluid stream and a thermal management fluid stream through a heat transfer region, and modulating a flow rate of the thermal management fluid stream.

    Large Deployable Panel with Shape Memory Hinge and Load Elements

    公开(公告)号:US20250059960A1

    公开(公告)日:2025-02-20

    申请号:US18469599

    申请日:2023-09-19

    Abstract: A deployable panel is provided comprising a first subpanel, a second subpanel, and a shape memory alloy hinge connecting the subpanels. The shape memory alloy hinge enables the subpanels to move between a position in which the first and second subpanels are folded over each other and an unfolded position in response to an energy source that changes the shape of the shape memory alloy hinge, wherein the unfolded position is trained into the shape memory alloy hinge to ensure precise kinematic mating between the subpanels. Shape memory alloy springs are connected to the first subpanel and respective tethers connect the shape memory alloy springs to the second subpanel. The shape memory alloy springs contract in response to a second energy source to pull the subpanels together via the tethers when the subpanels are in the unfolded position to produce a seamless, featureless surface of the deployable panel.

    Shape memory alloy spacer system
    8.
    发明授权

    公开(公告)号:US10934021B2

    公开(公告)日:2021-03-02

    申请号:US16174472

    申请日:2018-10-30

    Abstract: A method for aligning and joining a first structure to a second structure in an aircraft is provided. A spacer system having a shape memory alloy is positioned in a gap between the first structure and the second structure. The shape memory alloy is initially in a cooled state. A temperature of the shape memory alloy is increased such that the shape memory alloy changes from the cooled shape to a heated shape to fill the gap and apply a load to hold the first structure in place relative to the second structure. Additional processes may then be performed to join the first structure to the second structure.

    Large deployable panel with shape memory hinge and load elements

    公开(公告)号:US12228114B1

    公开(公告)日:2025-02-18

    申请号:US18469599

    申请日:2023-09-19

    Abstract: A deployable panel is provided comprising a first subpanel, a second subpanel, and a shape memory alloy hinge connecting the subpanels. The shape memory alloy hinge enables the subpanels to move between a position in which the first and second subpanels are folded over each other and an unfolded position in response to an energy source that changes the shape of the shape memory alloy hinge, wherein the unfolded position is trained into the shape memory alloy hinge to ensure precise kinematic mating between the subpanels. Shape memory alloy springs are connected to the first subpanel and respective tethers connect the shape memory alloy springs to the second subpanel. The shape memory alloy springs contract in response to a second energy source to pull the subpanels together via the tethers when the subpanels are in the unfolded position to produce a seamless, featureless surface of the deployable panel.

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