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公开(公告)号：US20250137547A1
公开(公告)日：2025-05-01
申请号：US18921638
申请日：2024-10-21
Applicant: Hamilton Sundstrand Corporation
Inventor： Zbigniew JASKIEWICZ , Kamil MASTALERZ
IPC: F16K31/124
Abstract: A single stage servo valve assembly includes a drive assembly and a valve body assembly. The valve body assembly defines a valve body extending along a valve body axis (X) between a first valve body end and a second valve body end, a supply port, a control port and a return port formed through the valve body each defining a respective fluid flow channel, having a fluid flow axis, providing fluid communication between an interior of the valve body and an exterior of the valve body. The drive assembly operates to control the flow of fluid between the supply port, the control port and the return port, via the interior of the valve body, in response to an electric command signal; wherein a first nozzle is located in the valve body between the supply port and the control port and a second nozzle is located between the ports.
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公开(公告)号：US20250132088A1
公开(公告)日：2025-04-24
申请号：US18490574
申请日：2023-10-19
Applicant: Hamilton Sundstrand Corporation
Inventor： Bo Liu , Parikshith Channegowda
Abstract: A tunable inductor is provided including a core having a closed shape and including first through third legs. A first winding wound around the first leg is coupled to a first controller configured to provide DC power to the first winding. The first winding is configured to generate a DC flux in a DC flux path in response to the DC power, the DC flux path passing through a first magnetoelectric material coupled to the core. A second winding wound around the second leg is coupled to the first controller and is configured to generate the DC flux in response to the DC power. A third leg between the first leg and the second leg is coupled to an AC power source configured to provide AC power to the third winding. The third winding is configured to generate AC flux in an AC flux path based on the AC power.
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公开(公告)号：US20250129749A1
公开(公告)日：2025-04-24
申请号：US18491383
申请日：2023-10-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Robert L. Seagren , Dhaval S. Patel
Abstract: An engine start system for an aircraft includes a first variable frequency start generator (VFSG) including a first exciter and a first stator, a second VFSG including a second exciter and a second stator, a first motor controller and a second motor controller, and a switching system. The switching system is configured to operatively connect the first motor controller to the first stator or the second exciter and operatively connect the second motor controller to the first exciter or the second stator. In a first mode of operation, the first motor controller is operatively connected to the second exciter, the second motor controller is operatively connected to the second stator, the first VFSG generates power, the first motor controller provides a first controlled voltage and frequency to the second exciter, and the second motor controller provides a second controlled voltage and frequency to the second stator.
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公开(公告)号：US12283903B2
公开(公告)日：2025-04-22
申请号：US18352343
申请日：2023-07-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Boran Fan , Jagadeesh K. Tangudu , Rolando Burgos , Vladimir Blasko , Dong Dong
Abstract: A multi-three-phase motor drive system includes a power distribution network, a motor drive unit, and a motor network. The power distribution network includes a partitioned direct current (DC) link connected between a positive voltage rail and a negative voltage rail. A connection between the positive voltage rail and a mid-point node defines an upper portion of the partitioned DC link and a connection between negative voltage rail and the mid-point node defines a lower portion of the partitioned DC link. The motor drive unit includes a plurality of inverter units, and the motor network includes a plurality of motor windings which are each connected to a respective inverter unit. A first group of the inverter units is connected in parallel with the upper portion of the portioned DC link, and a second group of the inverter units is connected in parallel with the lower portion of the partitioned DC link.
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公开(公告)号：US12281860B2
公开(公告)日：2025-04-22
申请号：US18631779
申请日：2024-04-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Joseph E. Turney , Kathryn L. Kirsch , Robert H. Dold , Matthew B. Kennedy
Abstract: A heat exchanger includes a plurality of longitudinally-extending first channels and a plurality of second channels fluidly isolated from the plurality of first channels. Each first channels includes a plurality of spiraling internal fins and a plurality of external fins. The internal fins extend from and are integrally formed with the internal walls of the first channel. The external fins connect extend from and are integrally formed with the external walls of the first channels, connecting channels together. The plurality of second channels is defined in part by external walls of the plurality of first channels and the plurality of external fins.
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Patent Agency Ranking
公开(公告)号：US12281659B1
公开(公告)日：2025-04-22
申请号：US18434951
申请日：2024-02-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Julian Winkler , Kenji Homma , Craig A. Reimann , Jeffrey M. Mendoza , Gregory Quinn , Hengyi Ju
Abstract: Life support systems include a pressure garment, a helmet, and a life support system enclosure that define an enclosed environment. The life support system includes one or more life support components to generate breathable gas within the enclosed environment. The gas is directed along a closed-loop flow path through the system. The life support components includes a fan for driving a flow of the gas through the closed-loop flow path and an acoustic damper arranged along the flow path and to reduce noise generated by the fan. The acoustic damper includes a housing defining an annular cavity arranged about a portion of the flow path, with the housing having a solid exterior surface and an inner diameter surface with openings to fluidly connect the flow path with the annular cavity and at least one acoustic damping element arranged within the annular cavity.
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公开(公告)号：US12275089B2
公开(公告)日：2025-04-15
申请号：US17749430
申请日：2022-05-20
Applicant: Hamilton Sundstrand Corporation
Inventor： John Giuliano , Viktor Kilchyk
IPC: B23K26/342 , B23K26/352 , B33Y80/00 , F28F1/00 , F28F13/18
Abstract: A heat exchanger core comprises a plurality of tubes extending along a first fluid axis, each of the plurality of tubes comprising a leading edge, a trailing edge opposite the leading edge, and a pair of oppositely disposed sidewalls extending from the leading edge to the trailing edge. The leading edge, trailing edge, and the pair of sidewalls define an inner surface and an outer surface of each of the plurality of tubes. Each of a first subset of the plurality of tubes further comprises a roughened region on the outer surface of one of the pair of sidewalls.
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公开(公告)号：US20250119150A1
公开(公告)日：2025-04-10
申请号：US18378287
申请日：2023-10-10
Applicant: Hamilton Sundstrand Corporation
Inventor： Thomas P. Joyce , Brennan Fox , Christopher Gillette , John A. Kleindienst , Alan E. Lubow
IPC: H03M1/06
Abstract: A system an analog to digital converter (ADC) operatively connected to receive an analog input signal from an input line and to output a digital input signal. A processor is operatively connected to receive the digital input signal from the ADC and to output a digital control signal for controlling a physical system based on the digital input signal. A digital to analog converter (DAC) is operatively connected to receive a copy of the digital input signal put out from the processor, and to output an analog output signal indicative of the copy of the digital input signal put out from the processor. Comparison logic is operatively connected to receive the analog input signal from the input line, to receive the analog output signal from the DAC, and to output an error signal in response to a mismatch between the analog input signal and the analog output signal.
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公开(公告)号：US12270344B2
公开(公告)日：2025-04-08
申请号：US18238792
申请日：2023-08-28
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary McBrien
Abstract: A fuel system a main manifold with an inlet and a plurality of main manifold branches. Each valve in a plurality of valves is connected in fluid communication with a respective one of the main manifold branches in the plurality of main manifold branches to receive flow from the main manifold. Each secondary manifold in a plurality of secondary manifolds connects a single one of the valves in the plurality of valves to a pair of secondary manifold branches. Each nozzle in a plurality of fuel nozzles includes a first inlet connected in fluid communication to one of the valves through one of the secondary manifold branches, and a second inlet connected in fluid communication to a different one of the valves through a different one of the secondary manifold branches so each of the fuel nozzles has a redundant connection to the main manifold through two of the valves.
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公开(公告)号：US20250110060A1
公开(公告)日：2025-04-03
申请号：US18521776
申请日：2023-11-28
Applicant: Hamilton Sundstrand Corporation
Inventor： Suresh Babu Kappa Venkata , Srikanth Annumandla
Abstract: A fuel tank system is disclosed. The fuel tank system includes a fuel tank and a detection system associated with the fuel tank. The detection system includes a source device emitting light into the fuel tank and an analysis device. The analysis device includes a collection device capturing scattered light resulting from the emitted light interacting with fuel in the fuel tank and providing an optical signal corresponding to the captured scattered light. The analysis device includes an optical detection device converting the optical signal to an electronic signal representative of properties of the captured scattered light and a computing device. In one or more embodiments, the computing device generates, based on the electronic signal, data including an indication of: a presence or absence of one or more contaminants in the fuel tank, a type of the one or more contaminants, and location information of the fuel and contaminants.
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