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公开(公告)号：US11387725B2
公开(公告)日：2022-07-12
申请号：US14722347
申请日：2015-05-27
Applicant: Hamilton Sundstrand Corporation
Inventor： Ram Ranjan , Andrzej Ernest Kuczek , Jagadeesh Tangudu
Abstract: An electrical machine is provided including a stator assembly having a stator core and a plurality of windings. A rotor assembly is arranged concentrically with the stator assembly and is configured to rotate about an axis. The rotor assembly includes a rotor core and a cage surrounding a periphery of the rotor core. The cage includes a plurality of impeller fins positioned adjacent at least one end of the rotor core.
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公开(公告)号：US20220153426A1
公开(公告)日：2022-05-19
申请号：US16951205
申请日：2020-11-18
Applicant: Hamilton Sundstrand Corporation
Inventor： Brian M. Holley , Ram Ranjan
Abstract: Power generation systems are described. The systems include a shaft, a compressor operably coupled to a first end of the shaft, a turbine operably coupled to a second end of the shaft, a generator operably coupled to the shaft between the compressor and the turbine, and a working fluid arranged in a closed-loop flow path that flows through each of the compressor and the turbine to drive rotation of the shaft. The shaft includes an internal fluid conduit configured to receive a portion of the working fluid at one of the first end and the second end and convey the portion of the working fluid through the generator to the other of the first end and the second end, wherein the portion of the working fluid is rejoined with a primary flow path of the working fluid.
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公开(公告)号：US20210340878A1
公开(公告)日：2021-11-04
申请号：US17244232
申请日：2021-04-29
Applicant: Hamilton Sundstrand Corporation
Inventor： Malcolm MacDonald , Ram Ranjan
Abstract: A turbo-generator is provided including a housing, a plurality of turbine impellers arranged within the housing, a shaft extending between and coupling the plurality of turbine impellers; and a generator mounted within the housing between the plurality of turbine impellers. The generator includes a stator having a stator core including a plurality of windings and a rotor. The rotor is rotationally coupled to the shaft. A cooling system includes at least one cooling passage integrated into the stator core of the generator.
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公开(公告)号：US20210033355A1
公开(公告)日：2021-02-04
申请号：US17076222
申请日：2020-10-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Ram Ranjan , Brian St. Rock
Abstract: A header duct and method of forming a header duct includes an inlet portion having a planar inlet, an outlet portion have a plurality of planar outlets, and a transition portion extending continuously from the inlet portion to the outlet portion. The transition portion has a bend and internal topography defining a non-monotonic cross-sectional area distribution between the inlet and outlet portions. The transition portion can further include a bulbous region extending in a lateral direction of the duct and a protrusion located along an inside radius of the bend.
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公开(公告)号：US20160352201A1
公开(公告)日：2016-12-01
申请号：US14722347
申请日：2015-05-27
Applicant: Hamilton Sundstrand Corporation
Inventor： Ram Ranjan , Andrzej Ernest Kuczek , Jagadeesh Tangudu
CPC classification number: H02K17/165 , H02K9/06
Abstract: An electrical machine is provided including a stator assembly having a stator core and a plurality of windings. A rotor assembly is arranged concentrically with the stator assembly and is configured to rotate about an axis. The rotor assembly includes a rotor core and a cage surrounding a periphery of the rotor core. The cage includes a plurality of impeller fins positioned adjacent at least one end of the rotor core.
Abstract translation: 提供一种电机，包括具有定子芯和多个绕组的定子组件。 转子组件与定子组件同心地布置并且构造成围绕轴线旋转。 转子组件包括转子芯和围绕转子芯的周边的保持架。 保持架包括邻近转子芯的至少一端定位的多个叶轮翅片。
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Patent Agency Ranking
公开(公告)号：US12057609B2
公开(公告)日：2024-08-06
申请号：US17472291
申请日：2021-09-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Matthew Robert Pearson , Sean C. Emerson , Ram Ranjan
IPC: H01M8/04119 , H01M8/04007
CPC classification number: H01M8/04171 , H01M8/04007 , H01M8/04164
Abstract: An exhaust moisture removal system for an electric generation system including: a sorbent wheel; an interchanger; a hydrogen evaporator including an exhaust portion; and an exhaust outflow stream passageway configured to convey an exhaust from a hydrogen fuel cell of the electric generation system through a first pass and then through a second pass, the second pass being located downstream of the first pass, wherein the first pass of the exhaust outflow stream passageway passes through the sorbent wheel, then through the interchanger, and then through the hydrogen evaporator, and wherein the second pass of the exhaust outflow stream passageway passes through the hydrogen evaporator, then through the interchanger, and then through the sorbent wheel.
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公开(公告)号：US11680487B2
公开(公告)日：2023-06-20
申请号：US17453804
申请日：2021-11-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Zhongtao Dai , Ram Ranjan , Robert H. Dold
CPC classification number: F01D5/046 , F01D5/048 , B33Y80/00 , F05D2240/24 , F05D2260/201
Abstract: A turbine rotor includes a base and a plurality of blades. A central nose is radially inward of the blades and defines an axis of rotation. A plurality of cooling manifolds is disposed within the turbine rotor and includes impingement cooling jets extending through a rear surface of the turbine rotor. An internal cooling manifold extends radially inward of the impingement cooling jets and extends between the base and the rear surface of the turbine rotor. A central nose cooling manifold extends into the central nose and is fluidically connected to the internal cooling manifold. A base cooling manifold is fluidically connected to the central nose manifold and extends radially outward from the central nose cooling manifold. A blade cooling manifold is fluidically connected to the base cooling manifold and extends within the blade. Trailing edge jets extend from the blade cooling manifold and through the trailing edge of blades.
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公开(公告)号：US20230116443A1
公开(公告)日：2023-04-13
申请号：US17959399
申请日：2022-10-04
Applicant: Hamilton Sundstrand Corporation
Inventor： Kathryn L. Kirsch , Robert H. Dold , Paul Attridge , Alexandru Cadar , Joseph Turney , Ram Ranjan
IPC: F28F9/02
Abstract: A header for a high-pressure heat exchanger includes a first high-pressure transition section with inlets for multiple first high-pressure flow channels that are spaced from one another in a radial direction and collectively arranged in a substantially circular shape. The inlets for the multiple first high-pressure flow channels on a radially outer edge of the first high-pressure transition section are spaced further apart in a circumferential direction from adjacent inlets of the multiple first high-pressure flow channels than radially inward inlets are spaced from adjacent radially inward inlets of the multiple first high-pressure flow channels. The header also includes multiple first high-pressure flow channels extending from the first high-pressure transition section to a second-high pressure transition section that is configured to divide each of the multiple first high-pressure flow channels into at least two first high-pressure sub-flow channels.
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公开(公告)号：US20230077598A1
公开(公告)日：2023-03-16
申请号：US17474802
申请日：2021-09-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Jeffrey Ewanchuk , Kimberly Rae Saviers , Ram Ranjan , Ross Wilcoxon , Haley Steffen
IPC: H05K7/20
Abstract: A system for cooling a power component includes a first metal layer. A cooling layer having a first surface is in contact with a surface of the first metal layer. A second metal layer is included having a surface in contact with a second surface of the cooling layer opposite the first metal layer. The cooling layer is of a material different from that of the first metal layer and that of the second metal layer. A plurality of cooling features are embedded in the material of the cooling layer. The cooling channels are spaced apart from both the first metal layer and the second metal layer by the material of the cooling layer. An electrically conductive path connects the first metal plate to the second metal plate.
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公开(公告)号：US20230075009A1
公开(公告)日：2023-03-09
申请号：US17470200
申请日：2021-09-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Ram Ranjan
Abstract: An aircraft system includes a turbine engine having a compressor, a combustor having an inlet and an outlet, and a turbine having an inlet portion and an outlet portion. An auxiliary power unit (APU) is operatively connected to the turbine engine. The APU includes a compressor portion, a generator, and a turbine portion. The compressor portion is operatively connected to the turbine portion through the generator. A source of cryogenic fluid is operatively connected to the turbine engine and the APU. A heat exchange member includes an inlet section operatively connected to the source of cryogenic fluid, a first outlet section operatively connected to the turbine engine and a second outlet section operatively connected to the compressor portion.
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