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公开(公告)号：US12084194B2
公开(公告)日：2024-09-10
申请号：US17470392
申请日：2021-09-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Sean C. Emerson , Paul Papas , Joseph Turney , Ram Ranjan
Abstract: Aircraft fuel system including a fuel vessel containing a non-mixture fuel. A protective vessel is arranged about the fuel vessel such that the fuel vessel is contained within the protective vessel and a protective space is defined between an outer surface of a vessel wall of the fuel vessel and an inner surface of a vessel wall of the protective vessel. At least one mounting structure fixedly positions the fuel vessel within the protective vessel. A fuel consumption device configured to consume the non-mixture fuel. A fuel output fluidly connects an interior of the fuel vessel to the fuel consumption device, the fuel output being fluidly isolated from the protective space. A relief output fluidly connects the protective space to a relief flow path, the relief output and relief flow path configured to vent gas from the protective space and remove any non-mixture fuel from the protective space.
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公开(公告)号：US11988418B2
公开(公告)日：2024-05-21
申请号：US17944534
申请日：2022-09-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Joseph E. Turney , Raphael Mandel , Ram Ranjan
CPC classification number: F25B25/005 , F25B39/00 , H05K7/20936 , B64D2013/0614 , B64D2013/0618 , F25B2400/23
Abstract: Cooling systems include a cold sink thermally coupled to a heat load, a separator configured to separate liquid and vapor portions of a working fluid, and a cooling cycle having a vapor loop and a liquid loop, the cooling cycle having the working fluid configured to pass through both the vapor loop and the liquid loop. The vapor loop includes the separator, a compressor, a condenser, and a valve. A vapor form of the working fluid flows from the separator into the compressor, and the working fluid then flows to the condenser, and then through the valve, and returned to the separator. The liquid loop includes the cold sink, the separator, and a pump. A liquid form of the working fluid flows from the separator into the pump and the working fluid is increased in pressure and supplied to the cold sink and then returned to the separator.
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公开(公告)号：US20230314091A1
公开(公告)日：2023-10-05
申请号：US17657728
申请日：2022-04-01
Applicant: Hamilton Sundstrand Corporation
Inventor： Ram Ranjan , Kimberly R. Saviers , Kathryn L. Kirsch , Ross K. Wilcoxon
IPC: F28F1/40
CPC classification number: F28F1/40 , F28F2250/102 , F28F2215/04
Abstract: A heat sink with a primary flow volume, an inlet, an outlet, a bottom plate, a top plate, distribution, heat transfer and collector sections, and flow paths between pillars. The inlet cross-section defines the primary flow volume cross-section and the length of the primary flow volume extends into the heat sink at a right angle to the inlet cross-section. The distribution section is proximate to the flow inlet and has distribution pillars extending from the bottom or top plate. The heat transfer section is proximate to the distribution section and has heat transfer pillars extending from the bottom or top plate. The collector section is proximate to the heat transfer section and has collector pillars extending from the bottom or top plate. The distribution cross-section is greater than the heat transfer cross-section which is smaller than the collector cross-section. The flow paths extend outside of the primary flow volume.
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公开(公告)号：US20230146859A1
公开(公告)日：2023-05-11
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 , F05D2260/201 , B33Y80/00 , F05D2240/24
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：US20230003131A1
公开(公告)日：2023-01-05
申请号：US17366493
申请日：2021-07-02
Applicant: Hamilton Sundstrand Corporation
Inventor： Zhongtao Dai , Ram Ranjan , Robert H. Dold
Abstract: A turbine rotor includes a base and a plurality of blades. The base and the blades curve such that radially outward portions of the base and the blades extend in a direction with a greater component in a radial direction than in an axial direction. Radially central portions of the base and the blade extend in a direction with the two components being closer. Radially inner sections of the base and the blades extend in a direction with a greater component in the axial direction than in a radial direction. There is a cooling channel arrangement in the turbine rotor. The cooling channel arrangement includes impingement cooling for a nose and serpentine passages for cooling sections of the platform circumferentially intermediate the blades, and distinct serpentine passages for cooling the plurality of blades. A turbomachine and method are also disclosed.
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Patent Agency Ranking
公开(公告)号：US11536164B1
公开(公告)日：2022-12-27
申请号：US17661462
申请日：2022-04-29
Applicant: Hamilton Sundstrand Corporation
Inventor： Stephen H. Taylor , Ram Ranjan
Abstract: A closed-loop Brayton cycle system utilizes supercritical carbon dioxide as the working fluid for the system to achieve higher efficiencies than can be achieved with traditional open-loop gas turbine engines. A bleed channel is used to direct a flow of cooling fluid to cool the turbine blades during operation of the system, preventing damage to the turbine blades during operation of the system. The bleed channel includes a bleed inlet fluidly coupled between a first recuperator and a second recuperator and a bleed outlet fluidly coupled to the turbine blades. The bleed channel is configured to direct the flow of cooling fluid to the turbine blades at a desired temperature and pressure.
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公开(公告)号：US20220120502A1
公开(公告)日：2022-04-21
申请号：US17566315
申请日：2021-12-30
Applicant: Hamilton Sundstrand Corporation
Inventor： Neal R. Herring , Ram Ranjan , Brian St. Rock , Joseph Turney , Andrzej Ernest Kuczek , Michael K. Ikeda , Thomas M. Yun
Abstract: A heat exchanger includes a body, a plurality of first flow channels defined in the body; and a plurality of second flow channels defined in the body. The second flow channels are fluidly isolated from the first flow channels. The first flow channels and second flow channels are arranged in a checkerboard pattern.
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公开(公告)号：US11243030B2
公开(公告)日：2022-02-08
申请号：US14994518
申请日：2016-01-13
Applicant: Hamilton Sundstrand Corporation
Inventor： Neal R. Herring , Ram Ranjan , Brian St. Rock , Joseph Turney , Andrzej E. Kuczek , Michael K. Ikeda , Thomas M. Yun
Abstract: A heat exchanger includes a body, a plurality of first flow channels defined in the body; and a plurality of second flow channels defined in the body. The second flow channels are fluidly isolated from the first flow channels. The first flow channels and second flow channels are arranged in a checkerboard pattern.
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公开(公告)号：US11187148B1
公开(公告)日：2021-11-30
申请号：US16947426
申请日：2020-07-31
Applicant: Hamilton Sundstrand Corporation
Inventor： Malcolm MacDonald , Ram Ranjan , Brian M. Holley
IPC: F02C6/06 , F02C3/04 , F02C7/10 , F02C7/18 , F02C1/05 , F02C3/10 , F01D15/10 , F01K25/10 , F01K11/02
Abstract: A system includes a power cycle and a cooling cycle. The power cycle includes a first compressor, a recuperative heat exchanger, a waste-heat heat exchanger, and a turbine. The turbine includes a drive shaft coupled to the first compressor. The working fluid from the waste-heat heat exchanger drives the turbine, the drive shaft, and the first compressor. The recuperative heat exchanger cools the working fluid from the turbine, and at least one ram-air heat exchanger further cools the working fluid from the recuperative heat exchanger. The first compressor is configured to pressurize the working fluid from the at least one ram-air heat exchanger. The cooling cycle includes a pump, an isenthalpic valve, an ambient air heat exchanger, and a second compressor. The cooling cycle cools the working fluid and ambient air and is connected to the power cycle in the at least one ram-air heat exchanger.
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公开(公告)号：US20210254899A1
公开(公告)日：2021-08-19
申请号：US16791471
申请日：2020-02-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Abbas A. Alahyari , Jinliang Wang , Ram Ranjan
IPC: F28D15/02
Abstract: An oscillating heat pipe device can include a body formed to be at least partially flexible, one or more channels within the body and defined by the body, an evaporator portion within the body at a first end of the one or more channels and in fluid communication with the one or more channels, and a condenser portion within the body at a second end of the one or more channels and in fluid communication with the one or more channels. The body can be configured to flex between the evaporator portion and the condenser portion. The device can include a heat transfer fluid trapped within the channels to transfer heat between the evaporator portion and the condenser portion.
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