Patents Assigned to Sundstrand Corporation
  • ELECTRICALLY DIRECT CONTROLLED VARIABLE DISPLACEMENT PUMPS
    Publication number: 20240350722
    Abstract: A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. An electromechanical actuator (EMA) is operatively connected to actuate the variable displacement mechanism for direct electromechanical control of the VDP.
    Type: Application
    Filed: April 21, 2023
    Publication date: October 24, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Ryan Prescott Susca, Mark W. Shoemaker
  • Common mode current feed fault protection
    Patent number: 12123905
    Abstract: A system includes a generator. Three AC feeders are connected for feeding AC output from the generator. A rectifier is electrically connected to the three AC feeders and to a load via a first DC feeder and a second DC feeder. A first resistor connects between a the first DC feeder and ground. A second resistor connects between the second DC feeder and ground. At least one of a first current sensor is operatively connected to detect current in the first DC feeder and/or a second current sensor is operatively connected to detect current in the second DC feeder. A controller is configured to monitor for changes in common mode current based on the input from the at least one current sensor, and to determine presence of a fault if change in the common mode current exceeds a predetermined threshold.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: October 22, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Kyle Stephen Ives, Tom A. Utecht, Michael C. Harke
  • MULTIPLE POTTING MATERIAL STRUCTURES
    Publication number: 20240348119
    Abstract: A stator for an electrical machine can include a plurality of windings, each forming a coil and end connections. The stator can include a first potting material having a first viscosity and a first thermal conductivity. The first potting material can be disposed on each coil and fills gaps between each coil. The stator can include a second potting material different from the first potting material and having a second viscosity and a second thermal conductivity. The second viscosity can be higher than the first viscosity and the second thermal conductivity is higher than the first thermal conductivity. The second potting material can be disposed on each of the end connections to provide increased thermal conductivity from the end connections.
    Type: Application
    Filed: April 11, 2023
    Publication date: October 17, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Abbas A. Alahyari, Jagadeesh K. Tangudu, Andrzej Ernest Kuczek, Kimberly Rae Saviers
  • Multi-element propeller blade deicer scheme for balanced three-phase electrical loads
    Patent number: 12116138
    Abstract: Provided are embodiments for deicing an aircraft propeller having a plurality of blades of an aircraft. An example method includes performing a first heating, by a first plurality of heating elements connected to a first portion of each of the plurality of blades, for a first period of time, the first portion of each of the plurality of blades of the propeller defining a first deicing zone. The method further includes, subsequent to expiration of the first period of time, performing a second heating, by a second plurality of heating elements connected to a second portion of each of the plurality of blades, for a second period of time, the second portion of each of the plurality of blades of the propeller defining a second deicing zone.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: October 15, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: David R. Danielson
  • Fuel tank inerting system
    Patent number: 12115494
    Abstract: A fuel tank inerting system is disclosed, comprising a fuel tank and an electrochemical cell comprising a cathode and an anode separated by a separator comprising an anion transfer medium. A cathode fluid flow path is in operative fluid communication with a catalyst at the cathode between a cathode fluid flow path inlet and a cathode fluid flow path outlet. An anode fluid flow path is in operative fluid communication with a catalyst at the anode, and includes an anode fluid flow path outlet. An electrical connected to a power source is arranged to provide a voltage difference between the anode and the cathode. An air source is in operative fluid communication with either or both of the cathode flow path inlet and the anode flow path inlet. An inert gas flow path is in operative fluid communication with the cathode flow path outlet and the fuel tank.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: October 15, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Bart Antonie van Hassel, Robert Mason Darling, Michael L. Perry
  • Sealing assemblies for sealing between rotating and non-rotating components
    Patent number: 12117083
    Abstract: Seal assemblies for sealing between a stationary component and a rotating component include a sealing member having a sealing face with an outer diameter sealing face and an inner diameter sealing face. An annular channel is defined in the sealing face between the outer diameter sealing face and an inner diameter sealing face and the sealing member is attached to the stationary component. A rotating mating ring is attached to the rotating component and includes a rotating sealing face and at least one ejection hole extending through the rotating mating ring from the rotating sealing face at an inlet end and a radially outward outlet end.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: October 15, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Joshua J. Krecklow
  • Aircraft control surface actuation mechanism
    Patent number: 12116108
    Abstract: Assemblies having a first structure, a second structure movable relative to the first structure, and an actuator system arranged therebetween and configured to control relative movement therebetween. The actuator system includes a drive shaft, a first element configured to be driven in a first direction, and a second element configured to be driven in a second direction. A spar is fixedly connected to the first structure and a spar connection pivotably connects the first element to the spar at a fixed coupler. The drive shaft, the first element, and the second element are housed within the second structure. Rotation of the second element causes a translation motion of the drive shaft away from the first structure and rotation of the first element about the fixed coupler such that the second structure is translated and rotated relative to the first structure.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: October 15, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Derick S. Balsiger
  • High-pressure annular water collector with axial swirl vanes for an air cycle environmental control system
    Patent number: 12115479
    Abstract: An annular water removal system (AWRS) for an air cycle environmental control system (ECS) includes a line replaceable unit (LRU) configured to output air flow, and a water collector coupled to the LRU. The water collector includes an upper portion and a lower portion. The upper portion includes a coalescing unit having a collector inlet to receive the air flow and configured to coalesce moisture from the air flow output from the LRU. The lower portion includes a collection unit in fluid communication with the coalescing unit. The collection unit is configured to collect the moisture coalesced by the coalescing unit.
    Type: Grant
    Filed: November 2, 2023
    Date of Patent: October 15, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Donald E. Army, Abbas A. Alahyari, Anthony DeLugan, Ephraim Joseph, Michael Maynard, Seth E. Rosen, John H. Whiton, Sebastian Zuraw, David Saltzman, Christopher Testa
  • Heat exchanger with spray nozzle
    Patent number: 12117252
    Abstract: An environmental control system according to an example of the present disclosure includes a heat exchanger, a ram air duct operable to provide cooling ram air to the heat exchanger, and a water extractor operable to extract water from the ram air. The heat exchanger includes at least one nozzle operable to spray water from the water extractor into the ram air duct. An example heat exchanger and a method of making a heat exchanger are also disclosed.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: October 15, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Donald E. Army
  • System and method for reducing power consumption in computing systems
    Patent number: 12117882
    Abstract: A system having: a processor, wherein the processor is configured for executing a process of reducing power consumption that includes executing a first task over a first plurality of timeslots and a second task over a second plurality of timeslots, and wherein the processor is configured to: execute a real-time operating system (RTOS) process; determine that the first task is complete during a first timeslot of the first plurality of timeslots; and enter a low power mode for a reminder of the first timeslot upon determining that there is enough time to enter a low power mode during the first timeslot and a next timeslot is allocated to the first task, otherwise perform a dead-wait for the reminder of the first timeslot.
    Type: Grant
    Filed: March 15, 2023
    Date of Patent: October 15, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Balaji Krishnakumar
  • Shaftless rotary machine
    Patent number: 12117016
    Abstract: A shaftless rotary machine includes an impeller, a motor positioned radially outward from the impeller, and a housing. The impeller includes a hub, blades connected to the hub, and a shroud connected to the blades. The motor includes a rotor connected to the shroud and a stator. The housing includes an inlet, an outlet, and a duct. The duct extends from the inlet to the outlet. The duct partially surrounds the motor and the impeller.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: October 15, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Viktor Kilchyk
  • Systems and methods for power transfer and load management
    Patent number: 12119661
    Abstract: In accordance with at least one aspect of this disclosure, a method for power distribution and load management in an aircraft can include budgeting a designated current for one or more loads in one or more respective power districts in a power distribution system based on a nominal load draw for each of the one or more loads, determining a system condition of the power distribution system, prioritizing each of the one or more loads based on the system condition, and distributing power from each of the one or more power districts to the respective one or more loads in order of priority until a total budgeted designated current for the respective power district has been exhausted, and leaving any remaining loads in the one or more power districts unpowered.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: October 15, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Michael Krenz
  • HEAT EXCHANGER COOLING SYSTEMS AND AUXILIARY POWER GENERATION ON LIQUID HYDROGEN-FUELED AIRCRAFTS
    Publication number: 20240339636
    Abstract: A system includes a fuel cell stack. A heat exchanger has an air passage in thermal communication with an H2O passage for heat exchange between air and H2O. An exhaust outlet of the fuel cell stack is connected in fluid communication with an H2O inlet of the heat exchanger for supplying H2O to the heat exchanger.
    Type: Application
    Filed: April 4, 2023
    Publication date: October 10, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, Viktor Kilchyk
  • BACK IRON HEAT EXCHANGERS FOR ELECTRIC MACHINES
    Publication number: 20240339873
    Abstract: An electric machine assembly includes a stator. The stator includes a core defining a rotational axis, windings assembled into the core, and a back iron heat exchanger mounted to the core, extending around the rotational axis. A plurality of coolant circuits pass from one or more coolant inlets in the back iron heat exchanger through the back iron heat exchanger, to one or more coolant outlets in the back iron heat exchanger. Between the one or more coolant inlets and the one or more coolant outlets, the plurality of cooling circuits are in fluid isolation from one another and from radially inner and outer surfaces of the back iron heat exchanger.
    Type: Application
    Filed: April 7, 2023
    Publication date: October 10, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Kris H. Campbell, Debabrata Pal, Ashutosh Joshi, Joshua J. Krecklow
  • Air cycle machine bypass duct
    Patent number: 12110900
    Abstract: An environmental control system includes a rotary machine, a first bypass duct, and a first check valve in the first bypass duct. The rotary machine includes a compressor section and a first turbine section. Each section of the rotary machine includes an inlet, an outlet, a duct extending between the inlet and the outlet, and an impeller in the duct. The rotary machine also includes a tie rod mechanically connecting the compressor impeller and the first turbine impeller. The first bypass duct is between the compressor section and the first turbine inlet. The check valve opens the first bypass duct when an air pressure in the compressor inlet is higher than an air pressure in the first turbine inlet.
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: October 8, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Craig M. Beers, John H. Paliulis, Darryl Colson
  • Method of manufacturing metal articles
    Patent number: 12109644
    Abstract: A method for making an article is disclosed. According to the method, a digital model of the article is generated. The digital model is inputted into an additive manufacturing apparatus comprising an energy source. The additive manufacturing apparatus applies energy from the energy source to successively applied incremental quantities of a powder to fuse the powder to form the article corresponding to the digital model. The powder particles individually include a composite core including a first phase of a first metal and a second phase of a ceramic. A first shell including a second metal is disposed over the core.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: October 8, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Eric Karlen, William Louis Wentland
  • Direct current bus control scheme
    Patent number: 12107409
    Abstract: Examples described herein provide an electric power distribution system (EPDS) that includes a transformer rectifier unit (TRU) that receives alternating current (AC) electric power from an AC electric power source during a first state of operation. The EPDS further includes a direct current (DC) electric power source that receives the DC electric power from the TRU during the first state of operation. The EPDS further includes a DC essential bus that receives the DC electric power from the DC electric power source during the first state of operation and that receives the DC electric power from another source during a second state of operation. The EPDS further includes a controller to selectively engage a diode bypass contactor to enable a diode during the second state of operation, and selectively engage the diode bypass contactor to enable a diode bypass during the first state of operation.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: October 1, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Jordan K. Vanevenhoven
  • Power modules with regenerative compressor wheels
    Patent number: 12104606
    Abstract: A power module includes a turbine arranged along a rotation axis, an interconnect shaft fixed in rotation relative to the turbine, and a compressor with a regenerative compressor wheel. The regenerative compressor wheel is fixed in rotation relative to the interconnect shaft supported for rotation with the turbine about the rotation axis. Generator arrangements, unmanned aerial vehicles, and methods of generating electrical power are also described.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: October 1, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Richard A. Himmelmann
  • IDENTIFYING LOCATION OF AND CLEARING OF GROUND FAULTS IN MIDPOINT GROUNDED DC SYSTEMS
    Publication number: 20240322554
    Abstract: A power supply system is configured to provide power to a load connected between first and second connectors. The system includes a generator that produces an alternating current generator output. A rectifier receives the alternating current generator output and converts it into a direct current output and provides the direct current (DC) output between the first and second connectors. A filter is connected to the rectifier and between the connectors to smooth the DC output. The filter includes a midpoint configured to be connected to ground. A positive fault locating resistor is switchably connected to one of the first and second connectors by a switch configured to be normally open, and to switch closed upon detection of a ground fault so the positive ground fault locating resistor can provide a sustained level current for locating and clearing the ground fault.
    Type: Application
    Filed: March 20, 2023
    Publication date: September 26, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: William S. Heglund, Robert L. Seagren
  • SINGLE PROCESSOR, SINGLE CHANNEL ELECTRONIC ENGINE CONTROL OVERSPEED PROTECTION FOR GAS TURBINE ENGINES
    Publication number: 20240318605
    Abstract: A first speed sensor interface is operatively connected to a first time-space partition of a processor. A second speed sensor interface is operatively connected to a second time-space partition of the processor. A high side control is operatively connected to the first time-time space partition to receive a discrete command from the first time-space partition, and to receive a serial command from the first time-space partition. A low side control is operatively connected to the second time-time space partition to receive a discrete command from the second time-space partition, and to receive a serial command from the second time-space partition. The high side control and the low side control are configured to connect to an outside fuel shutoff device in manner that requires consensus between the high side control and the low side control to control the fuel shutoff device to shutoff fuel flow.
    Type: Application
    Filed: March 24, 2023
    Publication date: September 26, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Glenn Reese, Christopher Grant, William E. Villano, Dana N. Switzer, James A. Gosse