公开(公告)号：US20190179351A1

公开(公告)日：2019-06-13

申请号：US15837846

申请日：2017-12-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Michael J. Andres

IPC: G05D23/02

Abstract: A method for controlling thermal conductivity between two thermal masses includes thermally contacting a first conduction body with a heat source, thermally contacting a second conduction body with a heat sink, and thermally contacting the second conduction body with the first conduction body by moving the first conduction body between a first position and a second position with a thermal expansion component. The thermal expansion component moves the first conduction body between the first position and the second position at a predetermined temperature and heat is conducted from the heat source to the heat sink through the first and second conduction bodies.

公开(公告)号：US20250067514A1

公开(公告)日：2025-02-27

申请号：US18236614

申请日：2023-08-22

Applicant: Hamilton Sundstrand Corporation

Inventor： David Saltzman ,  Grum T. Ngatu ,  Stephen Patrick Adamakis ,  Patrick McCord ,  Zachary Valente

IPC: F28D1/053

Abstract: A fluid circuit of a heat exchanger includes a core and a first header. The core is configured to receive a fluid and includes a plurality of conduits. Each of the plurality of conduits extends along a longitudinal axis from a first end portion to a second end portion. The first header is integrally formed with and fluidly connecting the plurality of conduits. Outer walls of the plurality of conduits taper outward relative to the longitudinal axes to join the first header.

公开(公告)号：US12228080B1

公开(公告)日：2025-02-18

申请号：US18378990

申请日：2023-10-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Sachin Ramprashad ,  Eric Briggs

IPC: F02C7/228 ,  F02C7/232 ,  F02C7/26

Abstract: A system includes a burn flow line and a flow divider valve in fluid communication with the burn flow line to split flow from the burn flow line to a primary line and to a secondary line for supplying fuel to a set of primary engine nozzles and to a set of secondary engine nozzles, respectively. A sensor operatively connected to the flow divider valve to produce a feedback signal indicative of flow split between the primary line and the secondary line. A controller is operatively connected to receive the feedback signal from the senor, compare the feedback signal to a stored flow split value for a mismatch, and output an alert message upon detecting the mismatch.

公开(公告)号：US20250053829A1

公开(公告)日：2025-02-13

申请号：US18799710

申请日：2024-08-09

Applicant: Hamilton Sundstrand Corporation

Inventor： Jake Rohrig ,  Miguel A. Torres ,  Hunter Sandidge ,  Jackson Thomas Wehr ,  Taylor Kirk

IPC: G06N5/02 ,  G06F30/20

Abstract: Embodiments of the disclosure provide a system for monitoring a mission. The system includes a digital ecosystem (DE) associated with the mission and positioned at a remote station. The DE, responsive to sensed data associated with deployed products positioned locally with the mission, generates performance data associated with the deployed products. A processor is provided and includes local processor resources located at the mission, along with remote processor resources at the remote station. The processor operations are performed and include executing a first cognitive algorithm to, responsive to a portion of the performance data, generate an initial cognitive output associated with an initial cognitive output action; prior to initiating the initial cognitive output action associated with the initial cognitive output, displaying to a user the initial cognitive output; and responsive to receiving user feedback on the initial cognitive output, executing post-user-feedback operations based on the user feedback.

公开(公告)号：US20250052253A1

公开(公告)日：2025-02-13

申请号：US18366238

申请日：2023-08-07

Applicant: Hamilton Sundstrand Corporation

Inventor： Viktor Kilchyk ,  Brent J. Merritt

IPC: F04D29/28 ,  F04D17/10

Abstract: A rotor assembly is provided and includes a two-piece rotor impeller and a rotor shaft. The two-piece rotor impeller includes a blade section and a forward section, which is connected to the blade section. The rotor shaft includes an aft section at which the rotor shaft terminates. The aft section is directly attached to the forward section of the rotor impeller. The blade section includes a converging blade configured to converge to a point with a minimized internal diameter (ID).

公开(公告)号：US12224700B2

公开(公告)日：2025-02-11

申请号：US18154363

申请日：2023-01-13

Applicant: Hamilton Sundstrand Corporation

Inventor： Brennan Fox ,  Mustansir H. Kheraluwala

IPC: H02P1/30 ,  B64D27/10 ,  F02C6/00 ,  F02C7/268 ,  H02P1/52 ,  H02P3/00 ,  H02P9/02

Abstract: A variable frequency starter generator (VFSG) system includes a VFSG having a start mode and a generate mode, a permanent magnet generator (PMG) and a main generator section and an exciter section. The system also includes a controller electrically connected to the VFSG. The controller flow start mode three phase electrical power from aircraft power to the exciter of the VFSG in the start mode and flows single phase electrical power to the exciter of the VFSG in the generate mode. The controller includes: an input active rectifier that receives input AC power and converts it to DC power and provides it to across a positive rail and negative rail; an output inverter coupled to an output of the input active rectifier; and one or more line inductors connected along one or both of the positive rail and negative rail between the input active rectifier and the output inverter.

公开(公告)号：US20250047209A1

公开(公告)日：2025-02-06

申请号：US18775252

申请日：2024-07-17

Applicant: Hamilton Sundstrand Corporation

Inventor： Andrew MCLEAN

IPC: H02M3/335 ,  H02M1/00 ,  H02M3/00

Abstract: A controller, a circuit, an aircraft electrical system and a method for controlling an isolated (inductor-inductor-capacitor) LLC power converter circuit. The circuit comprising an isolated transformer, and a first switch operable as a synchronous rectifier on a secondary side of the transformer. The controller comprises a current determination module configured to determine a primary winding current on a primary side of the isolated transformer; and a processing module configured to use the determined primary winding current in a processing algorithm to output a first control signal to configure the first switch on the secondary side of the isolated transformer to determine a waveform of a secondary winding current of the isolated transformer.

公开(公告)号：US20250044327A1

公开(公告)日：2025-02-06

申请号：US18658761

申请日：2024-05-08

Applicant: Hamilton Sundstrand Corporation

Inventor： Richa Verma

IPC: G01R19/165 ,  H02H1/00 ,  H02H7/20

Abstract: A circuit for detecting discrete inputs includes a first line replaceable unit (LRU). A second LRU includes an LRU circuit that includes a power source, a diode set coupled to the power source, a resistor R3 connecting from a node Vc between the diode set and the first LRU to ground, and a logic detection and processing circuit. The logic detection and processing circuit is operably connected to the diode set, and is configured to detect a state of the first LRU based on a detected voltage. The detected voltage is either open, or 28-Volts.

公开(公告)号：US20250043804A1

公开(公告)日：2025-02-06

申请号：US18228601

申请日：2023-07-31

Applicant: Hamilton Sundstrand Corporation

Inventor： August M. Coretto ,  Francis P. Marocchini ,  Ryan Prescott Susca

IPC: F15B13/044

Abstract: A system can include a first controllable valve configured to output a first control pressure on one or more first pressure control lines, a second controllable valve configured to output a second control pressure on one or more second pressure control lines, and a valve assembly. The valve assembly can be configured to direct the first control pressure to a first functional system and the second control pressure to a second functional system in a first state, direct the first control pressure to both of the first functional system and the second functional system in a second state, and direct the second control pressure to both of the first functional system and the second functional system in a third state.

公开(公告)号：US12214887B2

公开(公告)日：2025-02-04

申请号：US17585791

申请日：2022-01-27

Applicant: Hamilton Sundstrand Corporation

Inventor： Donald E. Army ,  John M. Maljanian

IPC: B64D13/06

Abstract: An environmental control system of an aircraft includes a primary heat exchanger, a secondary heat exchanger and an air cycle machine. The air cycle machine includes a compressor fluidly coupled to an outlet of the primary heat exchanger and an inlet of the secondary heat exchanger, a dehumidification system arranged in fluid communication with the outlet of the secondary heat exchanger, a first turbine fluidly coupled to an outlet of the secondary heat exchanger and optionally a second turbine disposed downstream of the first turbine that receives air from the first turbine in a normal mode a first humidity sensor disposed fluidly between the first turbine and the second turbine that measures humidity of air that has left the first turbine as it enters the second turbine in the normal mode.