-
公开(公告)号：US12130099B2
公开(公告)日：2024-10-29
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
CPC classification number: F28F9/0275 , F28F2009/0287
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.
-
公开(公告)号：US20240356050A1
公开(公告)日：2024-10-24
申请号：US18760827
申请日：2024-07-01
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.
-
公开(公告)号：US11965699B2
公开(公告)日：2024-04-23
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
CPC classification number: F28D7/0066 , B33Y80/00 , F28F7/02 , F28F9/02 , F28F9/0268 , F28F2255/18
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.
-
公开(公告)号：US11952910B2
公开(公告)日：2024-04-09
申请号：US18200220
申请日：2023-05-22
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.
-
公开(公告)号：US20240085068A1
公开(公告)日：2024-03-14
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 , B64D2013/0618 , 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.
-
Patent Agency Ranking
公开(公告)号：US11629637B2
公开(公告)日：2023-04-18
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.
-
公开(公告)号：US20230069975A1
公开(公告)日：2023-03-09
申请号：US17470537
申请日：2021-09-09
Applicant: Hamilton Sundstrand Corporation
Inventor： Giusi Quartarone , Erica Zavaglio , Federico Mattia Benzi , Ram Ranjan
Abstract: Aircraft systems including a pressurized fuel tank containing a pressurized fuel, a turbo expander configured to receive the pressurized fuel from the fuel tank, the turbo expander configured to decrease a pressure of the pressurized fuel to generate low pressure fuel having pressure less than the pressurized fuel, a fuel-to-air heat exchanger configured to receive the low pressure fuel from the turbo expander as a first working fluid and air as a second working fluid, the heat exchanger configured to cool the air and warm the fuel, an aircraft cabin configured to receive the cooled air, and a fuel consumption system configured to consume the fuel to generate power.
-
公开(公告)号：US20210218297A1
公开(公告)日：2021-07-15
申请号：US16742688
申请日：2020-01-14
Applicant: HAMILTON SUNDSTRAND CORPORATION
Inventor： Kimberly Rae Saviers , Ram Ranjan , Jagadeesh Kumar Tangudu
Abstract: A stator of an electric motor includes a stator core including a rim and a plurality of stator teeth extending from the rim. The plurality of stator teeth define a plurality of tooth gaps between circumferentially adjacent stator teeth. A plurality of stator windings are wrapped along the plurality of stator teeth. The plurality of stator windings include a plurality of core segments extending along the plurality of tooth gaps, and a plurality of end turn segments connecting adjacent core segments. A plurality of non-electrically conductive cooling channels are located in the stator core. The plurality of cooling channels are configured to direct a cooling fluid flow therethrough to cool the plurality of stator windings.
-
公开(公告)号：US10995997B2
公开(公告)日：2021-05-04
申请号：US16018774
申请日：2018-06-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Brian St. Rock , Ram Ranjan
Abstract: A counterflow heat exchanger configured to exchange thermal energy between a first fluid flow at a first pressure and a second fluid flow at a second pressure less than the first pressure includes a first fluid inlet, a first fluid outlet fluidly coupled to the first fluid inlet via a core section, a second fluid inlet, and a second fluid outlet fluidly coupled to the second fluid inlet via the core section. A heating arrangement is configured to heat the second fluid inlet to prevent ice ingestion via the second fluid inlet.
-
公开(公告)号：US20190390914A1
公开(公告)日：2019-12-26
申请号：US16018765
申请日：2018-06-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Brian St. Rock , Ram Ranjan
Abstract: A counterflow heat exchanger configured to exchange heat between a first fluid flow at a first pressure and a second fluid flow at a second pressure includes a first fluid inlet, a first fluid outlet fluidly coupled to the first fluid inlet via a core section, a second fluid inlet, and a second fluid outlet fluidly coupled to the second fluid inlet via the core section. The core section includes a plurality of first fluid passages configured to convey the first fluid flow from the first fluid inlet toward the first fluid outlet, and a plurality of second fluid passages configured to convey the second fluid flow from the second fluid inlet toward the second fluid outlet such that the first fluid flow exchanges thermal energy with the second fluid flow at the core section. Each first fluid passage of the plurality of first fluid passages has a circular cross-section.
-
-
-
-
-
-
-
-
-
Search Results
79
records
(took 0.02 seconds)
