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公开(公告)号：US20250158506A1
公开(公告)日：2025-05-15
申请号：US18940148
申请日：2024-11-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Ponggorn KULSANGCHAROEN , Ali Khalid AL-KARAGHOULI , Andrei DINU
Abstract: A power converter for providing power to one or more loads. The power converter is configured to be arranged in a parallel configuration with one or more additional power converters. The converter includes: a load balancing controller configured to receive an input voltage demand and output a compensated output voltage demand; an inverter for receiving an input voltage and converting this to an output voltage having an associated output current, the inverter comprising at least two DC-link capacitors; and a module configured to modulate the output voltage using a modulation scheme based on the compensated output voltage demand. The load balancing controller comprises a first feedback circuit configured to generate a first signal, wherein the first signal is generated based on a first measurement/calculation of the output current of the inverter scaled by a first gain.
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公开(公告)号：US20250158492A1
公开(公告)日：2025-05-15
申请号：US18773722
申请日：2024-07-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Tyler W. Hayes , Todd A. Spierling
Abstract: A system includes: a first electrical machine; a motor controller device coupled to the first electrical machine, wherein the motor controller device is configured to convert first power generated by the first electrical machine or provide second power to the first electrical machine; and a set of coupling devices configured to mechanically couple or decouple the first electrical machine and a turbine engine based on a mode of the system. The set of coupling devices includes: a first gearbox coupled to the first electrical machine; a first coupling device between the first gearbox and the turbine engine; a second gearbox; a second coupling device between the second gearbox and the turbine engine; and a third coupling device between the first gearbox and the second gearbox.
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公开(公告)号：US20250158491A1
公开(公告)日：2025-05-15
申请号：US18773709
申请日：2024-07-16
Applicant: Hamilton Sundstrand Corporation
Inventor： Tyler W. Hayes , Todd A. Spierling
Abstract: A system includes a low pressure machine, a high pressure machine, a motor controller device, a first set of switches configured to selectively couple the low pressure machine to an inverter or a rectifier included in the motor controller device, based on a control signal, and a second set of switches configured to selectively couple the high pressure machine to the inverter or the rectifier, based on the control signal.
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公开(公告)号：US20250158477A1
公开(公告)日：2025-05-15
申请号：US18939898
申请日：2024-11-07
Applicant: Hamilton Sundstrand Corporation
Inventor： Tomasz MECZKOWSKI , Przemyslaw Kaluza KALUZA
Abstract: A cooling structure for a rotary electric machine, the structure includes an annular radiator body defining an axis X between a first end and a second end, the annular body having a radially inner wall and a radially outer wall and a plurality of channels defined between the radially inner wall and the radially outer wall. Each channels extends from the first end to the second end, each channel having a radially varying profile along the length of the channel to interrupt the linear flow of fluid along the channel and to cause continuous changes in flow direction as the fluid flows from one end of the channel to the other.
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公开(公告)号：US20250155026A1
公开(公告)日：2025-05-15
申请号：US18510584
申请日：2023-11-15
Applicant: Hamilton Sundstrand Corporation
Inventor： Francis P. Marocchini , Robert DeFelice , Aaron F. Rickis
IPC: F16K1/22
Abstract: In accordance with at least one aspect of this disclosure, a retaining clip system for retaining an alignment of a valve disc within a valve housing can include, a c-shaped retaining clip configured to be disposed on a shaft of the valve and a shim pack including a plurality of shims configure to axially bound the retaining clip on the shaft.
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Patent Agency Ranking
公开(公告)号：US12301147B2
公开(公告)日：2025-05-13
申请号：US17994688
申请日：2022-11-28
Applicant: Hamilton Sundstrand Corporation
Inventor： Pravinsharma Kaliyannan Eswaran , Nageswara Rao Kalluri , David Frederick Brookes , Sridhar Katakam , Surendra Somasekhar Valleru
IPC: H02P27/08
Abstract: A motor drive system includes a direct current (DC) bus that provides a DC link voltage across a DC link capacitor, and a split DC link mid-point circuit connected in parallel with the DC link capacitor. The split DC link mid-point circuit establishes a mid-point reference based on the DC link voltage. A power inverter is in signal communication with the DC bus. The power inverter includes one or more gate driver units configured to drive one or more corresponding switches. Each gate driver unit includes a mid-point ground connection that is connected to the mid-point reference. The split DC link mid-point circuit can define a voltage divide that establishes the mid-point reference and can be used to monitor the DC link voltage.
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公开(公告)号：US12301125B2
公开(公告)日：2025-05-13
申请号：US18217414
申请日：2023-06-30
Applicant: Hamilton Sundstrand Corporation
Inventor： Andrew McLean
Abstract: A power converter topology, comprising: a cascade connection of a first converter stage and a second converter stage; wherein the first converter stage comprises a current mode controlled pulse width modulation (PWM) converter having one or more pairs of switches forming a first switching bridge and an inductor connected to the output of the first switching bridge, the switching bridge generating a voltage Vlink; and wherein the second converter stage is a resonant converter having a switching stage having one or more pairs of switches forming a second switching bridge across the voltage Vlink generated by the first converter stage and a resonant tank connected to the output of the second switching bridge, to generate a resonator output voltage; the topology further comprising a transformer to transform the resonator output voltage to a transformed output voltage and a rectifier to rectify the transformed output voltage to an output voltage Vout, and wherein the duty cycle of the first switching bridge is varied according to a voltage derived from the value of the output voltage Vout, and wherein the duty cycle of the second switching bridge is fixed at 50:50.
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公开(公告)号：US20250146757A1
公开(公告)日：2025-05-08
申请号：US18386819
申请日：2023-11-03
Applicant: Hamilton Sundstrand Corporation
Inventor： James Streeter , Grum T. Ngatu
Abstract: A heat exchanger having: an upstream header; a downstream header; a core extending from an upstream end at the upstream header to a downstream end at the downstream header, wherein the core includes tubes arranged in a square matrix that defines rows of tubes arranged in a row direction and columns of the tubes arranged in a column direction that is normal to the row direction, each of the tubes defining an upstream end and a downstream end that are spaced apart from each other in a longitudinal direction, and an outer boundary of the core is defined by outer ones of the tubes, wherein each of the tubes is longitudinally divided into tube segments; and tube connectors extending between the tube segments and interconnecting longitudinally and diagonally adjacent ones of the tube segments to stiffen the core.
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公开(公告)号：US20250145299A1
公开(公告)日：2025-05-08
申请号：US18826852
申请日：2024-09-06
Applicant: Hamilton Sundstrand Corporation
Inventor： James Thomas Marshall TULLETT , Mital Shah
Abstract: A power converter for use with a fan engine of an aircraft comprises an electric-motor interface for electrical connection to an electric motor configured to be mechanically coupled to a driveshaft of the fan engine. The converter includes an inverting electric-motor power stage, having a DC side and an AC side, wherein the AC side of the electric-motor power stage is electrically coupled to the electric-motor interface. It comprises a thrust-reverser interface for electrical connection to an electric actuator of the fan engine for actuating a thrust reverser surface of the fan engine, and an inverting thrust-reverser power stage, having a DC side and an AC side, wherein the AC side of the thrust-reverser power stage is electrically coupled to the thrust-reverser interface.
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公开(公告)号：US20250139332A1
公开(公告)日：2025-05-01
申请号：US18384909
申请日：2023-10-30
Applicant: Hamilton Sundstrand Corporation
Inventor： Ashutosh Joshi , Debabrata Pal
IPC: G06F30/27
Abstract: A method of detecting electrical arc damage includes receiving input indicative of electrical power as a function of time in an electrical arc. The method includes using the input to model an amount of damage caused by the electrical arc, and comparing the amount of damage to a predetermined threshold. The method includes flagging a warning in response to the amount of damage exceeding a predetermined threshold. The method can include breaking a circuit to stop the electrical arc. Flagging the warning can include signaling to an operator to inspect a unit potentially damaged by the electrical arc. The method can include inspecting the unit potentially damaged by the electrical arc.
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