MONOLITHIC HEAT-EXCHANGER BODIES
    15.
    发明申请

    公开(公告)号:US20210062756A1

    公开(公告)日:2021-03-04

    申请号:US17086868

    申请日:2020-11-02

    Abstract: A monolithic heat exchanger body for inputting heat to a closed-cycle engine may include a plurality of heating walls and heat sink, such as a plurality of heat transfer regions. The plurality of heating walls may be configured and arranged in an array of spirals or spiral arcs relative to a longitudinal axis of an inlet plenum. Adjacent portions of the plurality of heating walls may respectively define a corresponding plurality of heating fluid pathways therebetween, for example, fluidly communicating with the inlet plenum. At least a portion of the heat sink may be disposed about at least a portion of the monolithic heat exchanger body. The heat sink may include a plurality of working-fluid bodies, for example, including a plurality of working-fluid pathways that have a heat transfer relationship with the plurality of heating fluid pathways. Respective ones of the plurality of heat transfer regions may have a heat transfer relationship with a corresponding semiannular portion of the plurality of heating fluid pathways. Respective ones of the plurality of heat transfer regions may include a plurality of working-fluid pathways fluidly communicating between a heat input region and a heat extraction region.

    MONOLITHIC HEAT-EXCHANGER BODIES
    16.
    发明申请

    公开(公告)号:US20200370842A1

    公开(公告)日:2020-11-26

    申请号:US16878773

    申请日:2020-05-20

    Abstract: A monolithic heat exchanger body includes a plurality of heating walls and a plurality of combustion fins. The plurality of heating walls are configured and arranged in an array of spirals or spiral arcs relative to a longitudinal axis. Adjacent portions of the plurality of heating walls respectively define a corresponding plurality of heating fluid pathways therebetween. The plurality of combustion fins are circumferentially spaced about a perimeter of an inlet plenum. The inlet plenum includes or fluidly communicates with a combustion chamber. The plurality of heating fluid pathways fluidly communicate with the inlet plenum. The plurality of combustion fins occupy a radially or concentrically inward portion of the monolithic heat exchanger body. The plurality of heating fluid pathways have a heat transfer relationship with a heat sink disposed about a radially or concentrically outward portion of the monolithic heat exchanger body. A plurality of conduction breaks disposed radially or concentrically outward relative to the plurality of combustion fins at least partially inhibit heat conduction from the plurality of combustion fins to the plurality of heating walls.

    Gas turbine engine fluid cooling systems and methods of assembling the same

    公开(公告)号:US10323540B2

    公开(公告)日:2019-06-18

    申请号:US14960800

    申请日:2015-12-07

    Abstract: A fluid cooling system for use in a gas turbine engine including a fan casing circumscribing a core gas turbine engine includes a heat source configured to transfer heat to a heat transfer fluid and a primary heat exchanger coupled in flow communication with the heat source. The primary heat exchanger is configured to channel the heat transfer fluid therethrough and is coupled to the fan casing. The fluid cooling system also includes a secondary heat exchanger coupled in flow communication with the primary heat exchanger. The secondary heat exchanger is configured to channel the heat transfer fluid therethrough and is coupled to the core gas turbine engine. The fluid cooling system also includes a bypass mechanism coupled in flow communication with the secondary heat exchanger. The bypass mechanism is selectively moveable based on a temperature of a fluid medium to control a cooling airflow through the secondary heat exchanger.

    Parallelized CAD using multi laser additive printing

    公开(公告)号:US10317881B2

    公开(公告)日:2019-06-11

    申请号:US15446764

    申请日:2017-03-01

    Abstract: The present disclosure generally relates to additive manufacturing or printing of an object using parallel processing of files comprising 3D models of the object and/or portions thereof. A master file comprising a 3D model of the object is divided into subordinate files, wherein each subordinate file comprises a 3D model of a corresponding portion of the object. Each subordinate file is processed in parallel, controlling at least a first laser source to fabricate each portion from a build material. Parallel processing according to the methods of the present disclosure expedites additive manufacturing or printing over conventional methods that build an object in layers completed in series.

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