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    Electrocaloric heat transfer system
    2.
    发明授权
    Electrocaloric heat transfer system 有权

    公开(公告)号：US11428444B2

    公开(公告)日：2022-08-30

    申请号：US16313762

    申请日：2016-06-27

    申请人： United Technologies Corporation

    发明人： Scott Alan Eastman ,  Joseph V. Mantese ,  Wei Xie ,  Subramanyaravi Annapragada ,  Parmesh Verma ,  Sergei F. Burlatsky ,  Wayde R. Schmidt ,  Treese Hugener-Campbell

    IPC分类号： F25B21/00 ,  H01L37/02 ,  C09K5/14

    摘要： A heat transfer system is disclosed in which, an electrocaloric material includes a copolymer of a monomer mixture including (i) vinylidene fluoride, (ii) an addition polymerization monomer selected from tetrafluoroethylene, trifluoroethylene, or a monomer smaller than trifluoroethylene, and (iii) a halogenated addition polymerization monomer different than (ii) that is larger than vinylidene fluoride. The electrocaloric material also includes an additive selected from a nucleating agent having a polar surface charge, electrocalorically active solid particles, or a combination thereof. Electrodes are disposed on opposite surfaces of the electrocaloric material, and an electric power source is configured to provide voltage to the electrodes. The system also includes a first thermal flow path between the electrocaloric material and a heat sink, and a second thermal flow path between the electrocaloric material and a heat source.

    CONDITIONING PROCESS FOR ADDITIVE MANUFACTURING
    4.
    发明申请
    CONDITIONING PROCESS FOR ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：US20200376550A1

    公开(公告)日：2020-12-03

    申请号：US16427891

    申请日：2019-05-31

    申请人： United Technologies Corporation

    发明人： Sergei F. Burlatsky ,  David Ulrich Furrer

    IPC分类号： B22F3/105 ,  B23K26/08

    摘要： A method of additively manufacturing includes determining a track for manufacturing a layer of a component with a powder blend; traversing the track with a conditioning energy beam to cause sintering of powder particles along a denuded region within the powder blend; and traversing the track with a melting energy beam subsequent to the conditioning energy beam to from the layer of the component. An additive manufacturing system includes a build chamber that contains a powder blend; a controller operable to determine a track for manufacturing a layer of a component with the powder blend in the build chamber; a conditioning energy beam directed along the track by the controller to cause sintering of powder particles along a denuded region within the powder blend; and a melting energy beam directed along the track by the controller subsequent to the conditioning energy beam to form the layer of the component.

    Pressure modulated coating
    8.
    发明授权
    Pressure modulated coating 有权

    公开(公告)号：US09885110B2

    公开(公告)日：2018-02-06

    申请号：US14810767

    申请日：2015-07-28

    申请人： United Technologies Corporation

    发明人： Dmitri Novikov ,  Sergei F. Burlatsky ,  David Ulrich Furrer ,  David A. Litton

    IPC分类号： C23C14/54 ,  C23C14/22 ,  C23C14/24 ,  F01D25/00

    CPC分类号： C23C14/54 ,  C23C14/228 ,  C23C14/243 ,  F01D25/005

    摘要： A method or control strategy in a coating apparatus for use in a coating process can include controlling differential gas pressures among multiple selected localized zones in a coating chamber with respect to each other. The controlled differential gas pressure of the multiple selected localized zones is used to influence how a coating deposits on at least one component. The localized zones can be selected from a first localized zone around the component, a second localized zone adjacent the source of coating material, a third localized zone that diverges from the second localized zone toward the first localized zone, and a fourth localized zone that circumscribes at least the third localized zone.