Patents Assigned to Hamilton
  • VARIABLE DISPLACEMENT PUMP SYSTEMS
    Publication number: 20240392780
    Abstract: A variable displacement pump can include a rotor having a plurality of vanes, and a cam ring surrounding the rotor and vanes. The vanes can be configured to extend from the rotor and contact an inner cam surface of the cam ring. The pump can also include one or more radial actuators configured to apply a radial force to the cam ring to control a position of the cam ring and the pumping action.
    Type: Application
    Filed: May 23, 2023
    Publication date: November 28, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Mason Rosenberg
  • ACTIVE DISPLACEMENT CONTROL AGAINST TEMPERATURE TARGET
    Publication number: 20240392774
    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. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. An actuator is operatively connected to control the BPV to vary flow from the BPV inlet to the bypass line. An electromechanical actuator (EMA) is operatively connected to actuate the variable displacement mechanism. A temperature sensor is operatively connected to the outlet line to generate sensor output indicative of fluid temperature in the outlet line, wherein the temperature sensor is operatively connected to a controller for active control of the EMA and/or of the actuator based on temperature in the outlet line.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 28, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Ryan Shook, Ryan Prescott Susca
  • PRESSURE CONTROLLED PUMP SYSTEMS
    Publication number: 20240392791
    Abstract: A controllable pump system can include an inlet line and a pressure controlled pump connected to the inlet line to receive input flow. The pressure controlled pump can have a pressure controlled pump state configured to control a pump output to an output line connected to the pressure controlled pump. The system can include a slew pump connected to the inlet line and configured to output a slew pump pressure, and a slew pressure valve connected to the input line and to a second line and configured to output a control pressure to the pressure controlled pump. The second line can be configured to be in fluid communication with at least the slew pump such that the slew pressure valve can receive the slew pump pressure.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 28, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Ryan Prescott Susca, Naison E. Mastrocola
  • Turbine with a plurality of inlet nozzles
    Patent number: 12152495
    Abstract: A turbine of an air cycle machine, having: a housing; an output shaft that spins about a spin axis; a turbine disposed on the output shaft; a first nozzle defining a first inlet area that directs a first flow into the housing, the first nozzle extending along a first axis that is disposed at a first meridional angle to the spin axis; a second nozzle defining a second inlet area that differs from the first inlet area, the second nozzle directs a second flow into the housing to provide a mixed flow within the housing, the second nozzle extending along a second axis that is disposed at a second meridional angle to the spin axis, the second meridional angle differing from the first meridional angle; and a control valve configured to open and close the second nozzle.
    Type: Grant
    Filed: July 21, 2023
    Date of Patent: November 26, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Viktor Kilchyk, John H. Paliulis
  • Composite drive shafts
    Patent number: 12152633
    Abstract: A mechanical system for an aerospace application includes a drive input connected to a first axial end of a first diaphragm member, and a drive output connected to a second axial end of a second diaphragm member. The drive output is an aerospace component. The first and second diaphragm members are formed with two axial ends and at least one undulation extending radially of the axial ends. The at least one undulation is intermediate the ends. A tubular portion connects the first and second diaphragm members. The first and second diaphragm members and the tubular member are formed of fiber reinforced polymer matrix composites. The first and second diaphragm members are connected to axial ends of the tubular member by welding of the axial ends of the tubular portion to one of the inner ends of each of said first and second diaphragm members. The aerospace component is a propeller.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: November 26, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Joyel M. Schaefer, Michael King, Brayton Reed, Mark R. Gurvich
  • Slot cooling fins in electrical machines
    Patent number: 12155280
    Abstract: A method for manufacturing a stator for an electric machine comprises manufacturing a slot cooling fin to extend into a slot defined between a first tooth, a second tooth, and a stator yoke, and disposing a coil in the slot, wherein the slot cooling fin extends into the first coil.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: November 26, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jagadeesh Kumar Tangudu, Thomas M Yun, Andrew S Babel
  • Condensation catalyst systems and methods
    Patent number: 12151955
    Abstract: A reactor system may comprise a housing; and a condensation catalyst layer within the housing comprising a condensation catalyst comprised of at least one of a base-substituted zeolite, a stannous salt, or a phosphonitrile chloride. The condensation catalyst layer may be configured to catalyze a condensation reaction of a plurality of silane diols in water flowing through the housing into a plurality of siloxanes.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: November 26, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: John W. Steele, Barbara M. Peyton, Tony Rector
  • Built-in memory tests for aircraft processing systems
    Patent number: 12154642
    Abstract: Examples described herein provide a method for testing a memory associated with a processing system of an aircraft. The method includes performing, during operation of the processing system, an operational built-in test on the memory. The method further includes, responsive to detecting an error in the memory during the operational built-in test, performing a focused memory test at a location in the memory of the error. The method further includes, responsive the error being confirmed by the focused memory test, causing the processing system to be taken offline.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: November 26, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Christopher Brian Noll
  • Customized foam structures
    Patent number: 12152647
    Abstract: A shock resistant body comprises a non-metallic lattice structure having a first region with a first foam density in a first region and a second foam density in a second region that is lower from the first foam density. The first region has solid lattice members of a larger cross-sectional area than those in the second region and the first region has smaller interstices between solid lattice members than those in the second region.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: November 26, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Ricardo O. Brown, Travis H. Marshall
  • COIL LEAD TENSION CLENCH LOCK SLOT
    Publication number: 20240388153
    Abstract: An electric machine assembly includes a rotor core. The rotor core includes a plurality of winding poles extending between a first axial face and a second axial face of the rotor core. A clench lock slot is defined in the first axial face. The clench lock slot includes a first channel section having a first channel width, a second channel section having a width equal to the first channel width, and a converging-diverging section connecting between the first channel section and the second channel section. A first end of the converging-diverging section connects to the first channel section and has a width equal to the first channel width. A second end of the converging-diverging section connects to the second channel section and has a width equal to the first channel width. A clench point of the converging-diverging section is defined where the converging-diverging section is narrowest.
    Type: Application
    Filed: May 19, 2023
    Publication date: November 21, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Andrew R. Wilkinson, Mary Christelle Ann Calacal
  • Dual valve fuel metering systems
    Patent number: 12146461
    Abstract: A dual valve fuel metering system comprising a flow path defined between a fuel inlet and a fuel outlet. The flow path includes a primary flow path and a secondary flow path, wherein the fuel outlet is configured and adapted to be in fluid communication with at least one engine fuel manifold. A primary flow metering valve configured and adapted to meter flow on the primary flow path. A secondary flow metering valve configured and adapted to meter flow on the secondary flow path.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: November 19, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Sachin Ramprashad, Todd Haugsjaahabink
  • Hydraulic actuator including a multi-head piston for hydraulic gearing
    Patent number: 12145719
    Abstract: A hydraulic actuator system includes a hydraulic actuator having a housing with a piston having a piston shaft arranged within the housing. The housing is formed to have first, second and third regions, wherein the first region is between the second and third regions and has a larger major dimension than the second and third regions. The system also includes first, second, and third piston heads connected to the piston shaft with the first piston head being tween the second and third piston, wherein the first position head is within the first region and divides the first region into two volumes, the second piston head is in the second region and defines a first volume and the third piston head is in the third region and defines a fourth volume. The system also includes a mode selection device operably connected to the first, second, third and fourth volume.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: November 19, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Frank Perrelli, Morgan O'Rorke
  • Flyweight damper
    Patent number: 12146534
    Abstract: A vibration damping assembly for use with a second shaft nested within an interior of a first shaft is provided including a collar rotatable with the first shaft, and a cage rotatable with the second shaft and having at least one window formed therein. The collar and the cage are mounted concentrically. At least one damping mechanism is positioned within the at least one window. The at least one damping mechanism includes at least one flyweight and at least one support wedge. The at least one flyweight movable relative to the cage to frictionally engage an adjacent surface of the collar.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: November 19, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Aaron Cooling, Glenn C. Lemmers, Jr., Joshua A. Lehs
  • Dual pump fuel systems
    Patent number: 12146478
    Abstract: A fuel pump system includes a main fuel pump between a system fuel inlet and a system fuel outlet, a fuel flow path at least partially defined between the main fuel pump and the system fuel outlet, and a support fuel pump between the system fuel inlet and the system fuel outlet. The support fuel pump is sized to provide more flow to the system fuel outlet, when in an active state, than the main fuel pump. The system includes a valve assembly in fluid communication with the support fuel pump configured and adapted to connect the support fuel pump to the system fuel outlet, and a pressure regulating valve in fluid communication with the fuel flow path between the main fuel pump and the system fuel outlet. The system includes an EHSV in fluid communication with the fuel flow path between the PRV and the system fuel outlet.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: November 19, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Morgan O′Rorke, Ryan Susca, Ryan Shook
  • Permanent magnet generator brakes with press slip fit
    Patent number: 12149151
    Abstract: A system includes a permanent magnet generator (PMG) with a generator shaft defining a longitudinal axis. A brake system includes a brake shaft with a first end operatively connected to the generator shaft for selectively rotating with the generator shaft or braking to slow the generator shaft. A shear shaft is operatively connected to a second end of the brake shaft axially opposite the first end along the longitudinal axis. The brake system includes a press fit sleeve engaged about the brake shaft and an actuator. The actuator is operatively connected to actuate a pawl between a first position spaced apart from the press fit sleeve for normal operation of the PMG, and a second position engaged with the press fit sleeve to apply braking forces to the press fit sleeve and to the generator shaft.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: November 19, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Aaron Cooling, Glenn C. Lemmers, Jr., Andreas C. Koenig
  • Embedded liquid cooled rotor cooling
    Patent number: 12149129
    Abstract: A rotor for an electrical machine includes a core including a plurality of rotor poles circumferentially spaced apart from one another about a hub. A winding is wound about the rotor poles. The winding passes longitudinally through a respective winding gap between each circumferentially adjacent pair of rotor poles. A cooling tube extends through at least one of the respective winding gaps.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: November 19, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Debabrata Pal
  • System and method for input power detection of two power sources using single monitoring circuit
    Patent number: 12146922
    Abstract: A voltage supply system that includes a first power supply branch and a second power supply branch. Both branches includes a voltage supply; a serially connected diode and switch connected between the voltage supply and an output of the voltage supply system; and a gate driver connected to the first switch to control operation of the switch. The system also includes a voltage monitor/controller configured to perform a built-in test of the system by controlling the state of the first and second switches by controlling enable signals provided to the first and second gate drivers.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: November 19, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Vaibhav Kumar Somani, Alagan Thiruvarul Selvakkumaran Sathyan
  • Hybrid propulsion systems
    Patent number: 12145734
    Abstract: A hybrid propulsion system can include a turbomachine having a compressor, a combustion chamber, and a compressor turbine. The compressor can be connected to the compressor turbine via a first shaft. The system can include a hybrid drive assembly which can include a power turbine in fluid communication with an outlet of the compressor turbine to be driven by compressor turbine exhaust to drive a second shaft that is disconnected from the first shaft. The hybrid drive assembly can also include an electrical machine mechanically coupled to the second shaft either to convert rotational energy to electrical energy or to convert electrical energy to rotational energy of the second shaft.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 19, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Leo J. Veilleux, Jr., Lubomir A. Ribarov
  • Cooling for power distribution systems
    Patent number: 12144156
    Abstract: In accordance with at least one aspect of this disclosure, a power distribution system having integrated cooling includes a chassis defining an interior cavity, an electronics bus structure housed within the interior cavity, and an electrical contactor operatively connected to the electronics bus structure to receive a voltage therefrom. One or more heat dissipation fins can be included extending away from the chassis and configured to dissipate heat from the electronics bus structure to an ambient environment external to the chassis. In embodiments, the electronics bus structure can be sealed within the interior cavity.
    Type: Grant
    Filed: May 14, 2022
    Date of Patent: November 12, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, Eric A. Carter, Scott R. Bouras
  • Fluid delivery system
    Patent number: 12140079
    Abstract: A fluid delivery system can include a main pump disposed in a primary fluid line configured to receive a low pressure fluid on a low pressure side and output a high pressure fluid on a high pressure side to provide flow from the fluid source to a fluid destination via the primary fluid line. An interconnected valve system can be disposed in the primary fluid line configured to control flow through the primary fluid line.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: November 12, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Morgan O'Rorke, Ryan Susca, Todd Haugsjaahabink