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公开(公告)号：US20240341059A1
公开(公告)日：2024-10-10
申请号：US18295929
申请日：2023-04-05
Applicant: Hamilton Sundstrand Corporation
Inventor： Ashutosh Joshi , Eric A. Carter , Coralyn J. Saxby , Randy P. Gauvin , Dhaval S. Patel , Michael J. DeVito
CPC classification number: H05K7/20272 , H02G5/02 , H02M7/003
Abstract: A rectifier diode assembly is provided and includes first and second bus bars, a diode interposed between the first and second bus bars to define first and second spaces for fluid flow between the diode and the first and second bus bars, respectively, and first and second louvers. The first louvers are compressively interposed between the first bus bar and the diode to extend across the first space for thermally and electrically connecting the first bus bar and the diode. The second louvers are compressively interposed between the second bus bar and the diode to extend across the second space for thermally and electrically connecting the second bus bar and the diode.
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公开(公告)号：US20240266764A1
公开(公告)日：2024-08-08
申请号：US18165556
申请日：2023-02-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Mary Christelle Ann Calacal , Kyle S. Sirbasku , Edward C. Allen , Duane C. Johnson , Dhaval S. Patel
CPC classification number: H01R9/2416 , H01R13/53 , H01R43/18 , H01R43/24 , H02K5/225 , H01R2201/10 , H01R2201/26
Abstract: The present disclosure provides for terminal block cover assemblies for electric generators, and related methods of fabrication and use. More particularly, the present disclosure provides for terminal block cover assemblies for generators for aircraft or the like, with the terminal block cover assemblies having electrical arcing mitigation features and structures, and related methods of fabrication and use. The terminal block cover assemblies of the present disclosure can be utilized to reduce electrical arcing events in environments where de-icing fluid is used in the engine cowl.
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公开(公告)号：US20230399958A1
公开(公告)日：2023-12-14
申请号：US17837362
申请日：2022-06-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Dhaval S. Patel , Andreas C. Koenig
CPC classification number: F01D15/10 , F02C7/268 , F05D2220/768 , F05D2260/85
Abstract: An aircraft electric power generation and start system (EPGSS) includes a main machine, a starter permanent magnet generator (PMG), a generator PMG, and a carrier injection sensorless (CIS) system. The main machine selectively operates in a start mode or a generator mode. The starter PMG includes a first PMG stator and a first PMG rotor and is configured to rotate along with the shaft. The generator PMG includes a second PMG stator and a second PMG rotor configured to rotate along with the shaft. The CIS system determines one or both of a PMG voltage and a PMG current corresponding to the first PMG during the start mode, and determines a rotational position of the main rotor based on one or both of the PMG voltage and the PMG current.
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公开(公告)号：US12009702B2
公开(公告)日：2024-06-11
申请号：US17747799
申请日：2022-05-18
Applicant: Hamilton Sundstrand Corporation
Inventor： Andrew R. Wilkinson , Dhaval S. Patel
Abstract: A permanent magnet generator (PMG) system can include a stator configured to output a voltage, and a rotor assembly configured to be magnetically coupled to the stator and to rotate relative to the stator to induce the voltage. The rotor assembly can be configured to passively attenuate the voltage output from the stator in response to acceleration of the rotor assembly at or above an impulse acceleration threshold.
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公开(公告)号：US11959589B2
公开(公告)日：2024-04-16
申请号：US17717458
申请日：2022-04-11
Applicant: Hamilton Sundstrand Corporation
Inventor： Dhaval S. Patel , Aaron M. Finke , Glenn C. Lemmers, Jr. , Andreas C. Koenig
Abstract: An aircraft oil management system includes a generator, pump, and pump control system. The generator is mechanically coupled to a prime mover via a the rotor shaft and is configured to output three-phase power. The pump is mechanically decoupled from the rotor shaft and delivers oil to the generator. The pump control system drives the pump independent of a rotational speed of the rotor shaft.
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Patent Agency Ranking
公开(公告)号：US11927102B2
公开(公告)日：2024-03-12
申请号：US17837362
申请日：2022-06-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Dhaval S. Patel , Andreas C. Koenig
CPC classification number: F01D15/10 , F02C7/268 , F05D2220/768 , F05D2260/85
Abstract: An aircraft electric power generation and start system (EPGSS) includes a main machine, a starter permanent magnet generator (PMG), a generator PMG, and a carrier injection sensorless (CIS) system. The main machine selectively operates in a start mode or a generator mode. The starter PMG includes a first PMG stator and a first PMG rotor and is configured to rotate along with the shaft. The generator PMG includes a second PMG stator and a second PMG rotor configured to rotate along with the shaft. The CIS system determines one or both of a PMG voltage and a PMG current corresponding to the first PMG during the start mode, and determines a rotational position of the main rotor based on one or both of the PMG voltage and the PMG current.
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公开(公告)号：US20230421008A1
公开(公告)日：2023-12-28
申请号：US17747799
申请日：2022-05-18
Applicant: Hamilton Sundstrand Corporation
Inventor： Andrew R. Wilkinson , Dhaval S. Patel
Abstract: A permanent magnet generator (PMG) system can include a stator configured to output a voltage, and a rotor assembly configured to be magnetically coupled to the stator and to rotate relative to the stator to induce the voltage. The rotor assembly can be configured to passively attenuate the voltage output from the stator in response to acceleration of the rotor assembly at or above an impulse acceleration threshold.
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公开(公告)号：US20240364245A1
公开(公告)日：2024-10-31
申请号：US18307492
申请日：2023-04-26
Applicant: Hamilton Sundstrand Corporation
Inventor： Dhaval S. Patel , Andreas C. Koenig
Abstract: An electric engine start architecture is provided and includes a motor controller including an exciter inverter and a controller, which outputs a control signal to the exciter inverter, and a generator. The generator includes an exciter receptive of alternating current (AC) from the exciter inverter with the exciter inverter responsive to the control signal, a rotating rectifier receptive of AC from the exciter and configured to convert the AC from the exciter into direct current (DC) and a main machine exclusively drivable by AC fields in the exciter to execute an engine start operation.
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公开(公告)号：US20240106290A1
公开(公告)日：2024-03-28
申请号：US17934329
申请日：2022-09-22
Applicant: Hamilton Sundstrand Corporation
Inventor： Stephen Strombeck , Trevor Appelhans , Derek R. Hochstetler , Dhaval S. Patel
IPC: H02K3/28
CPC classification number: H02K3/28 , H02K2203/09
Abstract: An assembly of a main stage and exciter stage of an electric machine includes a main stage including a main stage winding, an exciter stage including an exciter winding, and a bus bar assembly to electrically connect the main stage winding to the exciter stage winding. The bus bar assembly includes a terminal post installed to the main stage and extending at least partially through the exciter stage. The main stage winding electrically is connected to the terminal post. A power band contact is installed to the terminal post and is electrically connected thereto. The exciter winding is electrically connected to the power band contact.
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公开(公告)号：US20230327520A1
公开(公告)日：2023-10-12
申请号：US17716158
申请日：2022-04-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Dhaval S. Patel , Glenn C. Lemmers, JR.
Abstract: A method includes pumping coolant into a cooling system of a generator while the generator is generating electrical power. The method includes regulating flow into the cooling system using a pressure relief valve to recirculate a portion of the coolant back to an inlet of the pump. Using the pressure relief valve includes actuating the pressure relief valve based on input from the cooling system and/or from the generator.
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