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    SLOT COOLING FINS IN ELECTRICAL MACHINES
    1.
    发明申请
    SLOT COOLING FINS IN ELECTRICAL MACHINES 审中-公开

    公开(公告)号：US20190229595A1

    公开(公告)日：2019-07-25

    申请号：US15875550

    申请日：2018-01-19

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Jagadeesh Kumar Tangudu ,  Thomas M. Yun ,  Andrew S. Babel

    IPC: H02K15/02 ,  H02K9/193 ,  H02K9/20 ,  H02K3/16

    Abstract: A planar member for a stator stack comprises a stator yoke defining a central longitudinal axis, a first surface facing radially outward, and a second surface facing radially inward, a tooth extending radially inwards from the second surface, a first tooth tip extending circumferentially from a radially inward end of the tooth, a second tooth tip extending circumferentially from the radially inward end of the tooth, a first slot portion defined between the first tooth tip and the second surface, a second slot portion defined between the second tooth tip and the second surface, and a slot cooling fin extending into the first slot portion.

    CONFORMAL HEAT EXCHANGER PASSAGE FEATURES FOR IMPROVED FLOW DISTRIBUTION
    3.
    发明申请
    CONFORMAL HEAT EXCHANGER PASSAGE FEATURES FOR IMPROVED FLOW DISTRIBUTION 有权

    公开(公告)号：US20220252361A1

    公开(公告)日：2022-08-11

    申请号：US17659962

    申请日：2022-04-20

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Thomas M. Yun ,  Vijay Narayan Jagdale ,  Brian St. Rock

    IPC: F28F13/12 ,  F28F1/40

    Abstract: A heat exchanger arrangement includes walls defining at least two circuit passages for porting a first fluid, a first of the circuit passages defining a first passage length, and a second of the circuit passages defining a second passage length, the second passage length being different from the first passage length, the walls being in thermal communication with a second fluid while isolating the first fluid from the second fluid, at least one of the first circuit passage and the second circuit passage includes a flow control feature configured to decrease an imbalance in flow between the first circuit passage and the second circuit passage compared to if the flow control feature were not present.

    HEAT EXCHANGER RIBLET AND TURBULATOR FEATURES FOR IMPROVED MANUFACTURABILITY AND PERFORMANCE
    5.
    发明申请
    HEAT EXCHANGER RIBLET AND TURBULATOR FEATURES FOR IMPROVED MANUFACTURABILITY AND PERFORMANCE 审中-公开

    公开(公告)号：US20200182559A1

    公开(公告)日：2020-06-11

    申请号：US16210932

    申请日：2018-12-05

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Thomas M. Yun ,  Vijay Narayan Jagdale ,  Jin Lee

    IPC: F28F1/02 ,  F28F1/04 ,  F28F1/08 ,  F28F1/42 ,  F28F13/12 ,  B22F5/10 ,  B29C64/153

    Abstract: An additively-manufactured heat exchanger includes fluidly-separated alternating first and second layers having respective flow channels which can include one or more features that is either a riblet or a turbulator. A riblet includes a riblet peak and/or a riblet valley, which has a riblet slope, and the riblet peak and/or riblet valley has a riblet axis that is generally parallel to either the first fluid flow direction or the second fluid flow direction. A turbulator includes a turbulator peak and/or a turbulator valley, which has a turbulator slope, and the turbulator peak and/or turbulator valley has a turbulator axis that is generally perpendicular to either the first fluid flow direction or the second fluid flow direction. The respective slope angles are generally 25-65 deg. relative to build-axis, thereby resulting in improved surface roughness and uniformity control during the build process.

    ELECTRIC MOTOR
    6.
    发明申请
    ELECTRIC MOTOR 审中-公开

    公开(公告)号：US20190157922A1

    公开(公告)日：2019-05-23

    申请号：US15817738

    申请日：2017-11-20

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Jagadeesh Kumar Tangudu ,  Thomas M. Yun

    IPC: H02K1/20 ,  H02K9/22 ,  H02K9/06

    Abstract: A stator assembly of an electric includes a plurality of ring structures centered to an axis. Each one of the plurality of ring structures includes a ring and a plurality of cooling fins projecting radially from and spaced circumferentially about the ring. Each ring structure is disposed axially adjacent to another ring structure of the plurality of ring structures.

    Conformal heat exchanger passage features for improved flow distribution
    8.
    发明授权
    Conformal heat exchanger passage features for improved flow distribution 有权

    公开(公告)号：US11781821B2

    公开(公告)日：2023-10-10

    申请号：US17659962

    申请日：2022-04-20

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Thomas M. Yun ,  Vijay Narayan Jagdale ,  Brian St. Rock

    IPC: F28F13/12 ,  F28F1/40

    CPC classification number: F28F13/12 ,  F28F1/40

    Abstract: A heat exchanger arrangement includes walls defining at least two circuit passages for porting a first fluid, a first of the circuit passages defining a first passage length, and a second of the circuit passages defining a second passage length, the second passage length being different from the first passage length, the walls being in thermal communication with a second fluid while isolating the first fluid from the second fluid, at least one of the first circuit passage and the second circuit passage includes a flow control feature configured to decrease an imbalance in flow between the first circuit passage and the second circuit passage compared to if the flow control feature were not present.

    SLOT COOLING FINS IN ELECTRICAL MACHINES
    9.
    发明申请
    SLOT COOLING FINS IN ELECTRICAL MACHINES 审中-公开

    公开(公告)号：US20200336053A1

    公开(公告)日：2020-10-22

    申请号：US16922808

    申请日：2020-07-07

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Jagadeesh Kumar Tangudu ,  Thomas M. Yun ,  Andrew S. Babel

    IPC: H02K15/02 ,  H02K9/193 ,  H02K3/16 ,  H02K9/20 ,  H02K1/20 ,  H02K9/22 ,  H02K5/18

    Abstract: A planar member for a stator stack comprises a stator yoke defining a central longitudinal axis, a first surface facing radially outward, and a second surface facing radially inward, a tooth extending radially inwards from the second surface, a first tooth tip extending circumferentially from a radially inward end of the tooth, a second tooth tip extending circumferentially from the radially inward end of the tooth, a first slot portion defined between the first tooth tip and the second surface, a second slot portion defined between the second tooth tip and the second surface, and a slot cooling fin extending radially from the stator yoke into the first slot portion.

    ELECTRIC MACHINE COOLING FEATURES
    10.
    发明申请
    ELECTRIC MACHINE COOLING FEATURES 审中-公开

    公开(公告)号：US20200083783A1

    公开(公告)日：2020-03-12

    申请号：US16125001

    申请日：2018-09-07

    Applicant: Hamilton Sundstrand Corporation

    Inventor： Jagadeesh Kumar Tangudu ,  Thomas M. Yun ,  John A. Sharon

    IPC: H02K9/22 ,  H02K1/12 ,  H02K3/02 ,  H02K3/46 ,  H02K15/02

    Abstract: Disclosed is a stator having: a first member having a first plurality of axially opposing ends including a first front end and a first back end mutually spaced along a first stator center axis, a first outer diameter (OD) side and a first inner diameter (ID) side, wherein first member comprises laminated steel; a plurality of cooling features disposed directly against the first member, wherein the plurality of fins spans between the first plurality of axially opposing ends of the first member, and wherein: the stator comprises a base layer disposed directly against the first member, between the first member and the cooling features, thereby reducing an interface contact resistance between the first member and the plurality of cooling features.

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