Patents Assigned to Hamilton
  • Power converter
    Patent number: 12176687
    Abstract: A power converter includes a field graded substrate, a plurality of power device dies attached to the field graded substrate, a polymer layer on the field graded substrate, one or more conductors over the polymer layer, and a plurality of power conditioning components mounted on the field graded substrate to form a power converter circuit. The field graded substrate includes a first conductor layer, a graded layer that blends conductor and insulator material, and a second conductor layer, the graded layer having an insulator core.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: December 24, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Chi Zhang, Jeffrey Ewanchuk
  • Multipad hybrid conical foil bearing
    Patent number: 12173751
    Abstract: A conical bearing includes a bearing sleeve, a bump foil, and a top foil. The bearing sleeve extends along an axis from a first open end to a second open end. The bearing sleeve has an axially tapered shape such that a first diameter of the bearing sleeve is greater than a second diameter of the bearing sleeve. An interior surface of the bearing sleeve has a non-circular profile. The bump foil is concentrically disposed within the bearing sleeve and includes bump foil pad segments extending circumferentially about the interior surface of the bearing sleeve. Each bump foil pad segment comprises a plurality of foil bumps and the plurality of foil bumps varies in stiffness along a circumference of the bump foil. The top foil is concentrically disposed within the bump foil and includes top foil pad segments extending circumferentially about an interior surface of the bump foil.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: December 24, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Ali Shakil, Zachary Alex Schuster
  • Assembly of torsional spring type roller jammer torque limiter
    Patent number: 12169010
    Abstract: A torque limiter (TL) is provided for torque transmission (TT) to downstream components. The TL includes an input shaft, an output shaft and a torsional spring which is preloadable by a preload torque whereupon the torsional spring is fittable about the output shaft with the output shaft fit about the input shaft. For input shaft rotation, first TT paths proceed from the input shaft to the output shaft through the torsional spring when downstream torque of the downstream components deceeds the preload torque and a second TT path proceeds from the input shaft to an external structure when the downstream torque exceeds the preload torque.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: December 17, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Swapnil Tukaram Shinde, Ramesh Babu
  • Shaft disconnects
    Patent number: 12168997
    Abstract: A shaft can include a first portion comprising a first material having first material properties, a disconnect portion comprising at least some of a second material having second material properties, and a third portion comprising a third material having third material properties. The disconnect portion can be positioned between the first portion and the third portion, the three material properties being configured such that the first portion is physically disconnected from the third portion in response to failure of the disconnect portion under at least one of a mechanical load and/or an electrical load and/or thermal load.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: December 17, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Kris H. Campbell
  • Hybrid ECS architecture to reduce engine bleed dependency for aircraft cabin pressure and temperature control
    Patent number: 12168518
    Abstract: An environmental control system includes an ambient air conduit and a bleed air conduit, an electric compressor connected to the ambient air conduit and a mechanical compressor connected to the electric compressor. The electric compressor is supported for rotation independent of the mechanical compressor. A turbine is operatively connected to the mechanical compressor, the turbine connected to both the ambient air conduit and the bleed air conduit to provide conditioned air to a conditioned air conduit. Computer program products and methods of providing conditioned air to conditioned air loads are also described.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: December 17, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: John John Kocherry, Santosh Kumar Tripathy, Tony Ho
  • DIRECT CONTROLLED VARIABLE DISPLACEMENT PUMP FUEL SYSTEMS WITH LOW PRESSURE THERMAL RECIRCULATION PUMPING
    Publication number: 20240410358
    Abstract: The system includes a main supply line. A variable displacement pump (VDP) is in fluid communication with an inlet line and with an outlet line. An actuator is operatively connected for direct control of the variable displacement mechanism. A pressure sensor is operatively connected to the outlet line to generate feedback indicative of pressure in the outlet line. A controller is operatively connected to receive the feedback from the pressure sensor, and operatively connected to the actuator to control the variable displacement mechanism based on the feedback. An actuation system is in fluid communication to be supplied with fluid from the outlet line for use in hydraulic actuation. The actuation system includes an actuation return line connecting the hydraulic actuation system in fluid communication to return fluid to the main supply line.
    Type: Application
    Filed: June 12, 2023
    Publication date: December 12, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Ryan Prescott Susca, Ryan Shook
  • Buck converters with light load function and logic
    Patent number: 12166408
    Abstract: A method of DC-DC power conversion includes converting a DC link voltage to a DC output voltage for a load that is lower than the DC link voltage using a buck converter. The method includes controlling the buck converter in a normal switching mode in response to the DC link voltage, the DC output voltage, and the current of the load being within respective predetermined thresholds. The method includes controlling the buck converter in a light load switching mode in response the DC link voltage, the DC output voltage, and/or the current of the load being at or beyond the respective predetermined thresholds.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: December 10, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventor: John Duward Sagona
  • Multi-surface sealing for two-position valves
    Patent number: 12163593
    Abstract: A valve includes a housing. A stroking valve is operatively connected to the housing for valve stroking movement relative to the housing in a direction of a longitudinal axis of the housing. The stroking valve has an open position for flow through the housing and a closed position for blocking flow through the housing. The stroking valve is configured to make sealing contact with a second face seal between the seal block and the stroking valve after a first portion of a stroke from the open position to the closed position prior to making sealing contact with a first face seal between the stroking valve and the housing.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: December 10, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Leo J. Veilleux, Jr.
  • Motor drive direct current link voltage measurement resolution improvement with fault detection
    Patent number: 12166445
    Abstract: A motor drive system includes a MUX circuit, a DC voltage scaling circuit, a fault detection circuit, an ADC, and an FPGA. The MUX circuit selectively establishes a MUX input signal path and a MUX output signal path. The DC voltage scaling circuit measures a DC link voltage. The fault detection circuit receives the output DC link voltage and outputs one of a normal operation signal or a fault signal in response to comparing the DC link voltage to one or both of a U/V reference voltage and an O/V reference voltage. The ADC converts one or more input analog voltages into respective corresponding output digital voltages. The FPGA is in signal communication with the ADC output (ADCOUT) and the MUX circuit, and is configured to control the motor drive system based on a comparison between one or more of the output digital voltages.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: December 10, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Nageswara Rao Kalluri, Swathika Sreedhar, Mahtab Ahmed, Raghavendra Ramachandra
  • Three way transfer valve for parallel electrohydraulic servo valve control of actuator
    Patent number: 12163537
    Abstract: A method includes using two parallel electrohydraulic servo valves EHSVs with a single transfer valve to move an actuator during a normal operation mode. The method includes upon failure of one of the EHSVs, using the single transfer valve to disconnect a non-operational one of the EHSVs and continuing to move the actuator with a functional one of the EHSVs in a backup mode.
    Type: Grant
    Filed: October 20, 2023
    Date of Patent: December 10, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Sachin Ramprashad, August M. Coretto, Frank Perrelli, Ryan Prescott Susca
  • Power generator cooling system
    Patent number: 12166405
    Abstract: A cooling system of a power generation system includes a generator cooling circuit having a first cooling fluid circulating therethrough. The generator cooling circuit includes a generator heat exchanger fluidly connected to a generator of the power generation system via the generator cooling circuit to cool the generator. A power converter cooling circuit has a second cooling fluid different from the first cooling fluid circulating therethrough. The power converter cooling circuit includes a power converter heat exchanger fluidly connected to a power converter of the power generation system via the power converter cooling circuit to cool the power converter.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: December 10, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Debabrata Pal
  • Rotating seal with oil slinger
    Patent number: 12163589
    Abstract: A face seal assembly includes a rotationally fixed first component at least partially defining an interior chamber containing a volume of lubricant. The first component includes a rotationally fixed seal element. A rotatable second component is rotatable about an axis of rotation relative to the first component. The second component includes a second component body extending along the axis of rotation from the interior chamber to outside of the interior chamber. An axially facing component surface is located in the interior chamber and is configured to engage with an axially-facing element surface of the seal element to define a seal interface of the face seal. A plurality of fins extend radially outwardly from the second component body in the chamber interior, such that the plurality of fins create a centrifugal force on the volume of lubricant to urge the volume of lubricant away from the seal interface.
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: December 10, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Joshua J. Krecklow
  • Ventilator with automatic detection of a fault in a flow sensor, taking into account spontaneous breathing
    Patent number: 12161806
    Abstract: The invention relates to a ventilator including a ventilation gas source, a ventilation tube assembly, a valve assembly, a flow sensor assembly comprising a distal flow sensor and a proximal flow sensor, a pressure sensor assembly for quantitatively detecting a gas pressure in the ventilation tube assembly a pressure-changing assembly for changing the gas pressure in the ventilation tube assembly and a control device which is designed at least to control the operation of the pressure-changing assembly on the basis of measurement signals from the proximal flow sensor, and on the basis of measurement signals from the proximal flow sensor and from the distal flow sensor, to infer the existence of a fault.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: December 10, 2024
    Assignee: Hamilton Medical AG
    Inventors: Christoph Schranz, Dominik Wolf, Dominik Novotni
  • Membrane bundle for fuel deoxygenation with enhanced durability
    Patent number: 12161952
    Abstract: A method of forming a degassing system includes the step of forming a bundle of hollow tube membrane members by wrapping hollow tube membrane members to form the bundle at a temperature above 100° F. (38° C.). Another method of forming a degassing system includes the step of the inserting bundle into an outer canister at a temperature above 100° F. (38° C.). A fuel supply system made by these methods is also disclosed.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: December 10, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Mark R. Gurvich, Richard E. Versailles, Jay W. Kokas, Rebecca R. Stoner, Andrew M Caldecutt, Alan F. Hunter, Haralambos Cordatos, Murtuza Lokhandwalla
  • Environmental control system for supersonic commercial aircraft
    Patent number: 12162607
    Abstract: An environmental control system includes a cooling circuit having at least one heat exchanger for cooling a first medium therein. At least one compressing device is operably coupled to the cooling circuit. The at least one compressing device includes a first compressor and a second compressor, wherein the first medium is provided to the first compressor and the second compressor in series, and a temperature of the first medium provided to an inlet of the second compressor is less than the temperature of the first medium at an outlet of the first compressor.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: December 10, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Tony Ho, Matthew Pess
  • Metal plated plastic ACM part with internal thermally adaptive structure
    Patent number: 12162606
    Abstract: A component, having: a base having beads formed of with first and second thermoplastic polymers, respectively having first and second coefficients of thermal expansion (CTE), where each of the beads has an outer surface and an inner surface that abut each other; a lower support section formed on the base, having a mixture of a third thermoplastic polymer and a catalyst formed with metal; an upper support section on the component, formed on the lower support section via electrolysis deposition, a metallic coating, to thereby control thermal expansion and contraction of the component; and reinforcement fibers embedded the base, the lower support section and the upper support section.
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: December 10, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Brent J. Merritt, Viktor Kilchyk
  • VANE PUMP ROTORS
    Publication number: 20240401591
    Abstract: In accordance with at least one aspect of this disclosure, a system includes a rotor configured to rotate about a rotor axis within a pump housing. In embodiments, the rotor includes, a first end face configured to interface with a stationary port plate, a plurality of vane slots defined in the rotor arranged circumferentially about the rotor axis configured to accept a respective vane therein, and a plurality of lands between each vane slot, wherein each land includes a portion of the first end face. The rotor also includes, a lubrication pad defined in the first end face of at least one land between neighboring vane slots such that the lubrication pad is fed by the neighboring vane slots to induce buildup of a lubrication film between the first end face and the stationary port plate in the lubrication pad.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 5, 2024
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Zachary Allen Ray Le Duc, Edward W. Goy
  • Permanent magnet generator brakes with dual wedges
    Patent number: 12160156
    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 wedge with a first position radially withdrawn from the brake shaft, and a second position radially pressed against the brake shaft for applying braking forces to the brake shaft and to the generator shaft.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: December 3, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Aaron Cooling, Andrew P. Grosskopf, Glenn C. Lemmers, Jr., Andreas C. Koenig
  • Aircraft airfoil formed from thermally adaptive materials and including damping element, stiffening element, and a thermoelectric junction
    Patent number: 12158085
    Abstract: An airfoil, having: a body defining a leading edge and a trailing edge, wherein the body comprises: a base having an outer boundary extending longitudinally from a first end to a second end and transversely from a first side to a second side; and beads within the outer boundary, wherein each of the beads has a bead void, and wherein one or more of the beads includes: damping element within the bead void; or stiffening element extending across the bead.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: December 3, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Viktor Kilchyk, Brent J. Merritt
  • Outer rotor machine with banding sleeve
    Patent number: 12160140
    Abstract: An electric motor/generator includes a stator, a rotor with a plurality of magnets and a rotor frame arranged to support the plurality of magnets in an outer rotor configuration so that the plurality of magnets are arranged to form an annular ring surrounding the stator. The electric motor/generator also includes a banding sleeve disposed on a circumferential portion of the rotor frame radially outwardly of the plurality of magnets. The banding sleeve may comprise a composite material such as a carbon fibre composite.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: December 3, 2024
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Andrew Page, Savvas Georgiou