Patents Assigned to Hamilton Sundstrand Corporation
  • AIRCRAFT PROPELLERS
    Publication number: 20130039765
    Abstract: An aircraft propeller taper bore insert apparatus includes an outer surface, the outer surface dimensioned and configured to fit within an aircraft propeller taper bore or an aircraft propeller balancing tube, and an inner surface, the inner surface defining an inner cavity configured to receive a balancing medium, the inner surface comprising a plurality of retention formations arranged thereon, and the plurality of retention formations being configured to support the balancing medium.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 14, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Blair A. Smith, David J. Grulke
  • LOW PRESSURE COMPRESSOR BLEED EXIT FOR AN AIRCRAFT PRESSURIZATION SYSTEM
    Publication number: 20130040545
    Abstract: An aircraft pressurization system, includes an auxiliary compressor for further compressing compressed air received from a low pressure compressor section of a gas turbine engine while the compressed air is below a predetermined pressure level; a bleed passage for fluidically connecting the auxiliary compressor to the low pressure compressor section; and an environmental control system coupled to an output of the auxiliary compressor for conditioning the compressed air to a predetermined level.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 14, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Adam M. Finney
  • HYBRID POWER SYSTEM ARCHITECTURE FOR AN AIRCRAFT
    Publication number: 20130036730
    Abstract: A hybrid power distribution system for an aircraft generates hydraulic power from one of a plurality of power sources based on which power source provides energy most efficiently. Power sources includes an electric power distribution bus that distributes electrical energy onboard the aircraft, a pneumatic distribution channel that distributes pneumatic energy onboard the aircraft, and mechanical power provided by one or more engines associated with the aircraft.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J. Bruno, Anthony C. Jones, Todd A. Spierling, Gregory L. DeFrancesco
  • HIGH ALTITUDE, HIGH VOLTAGE TERMINAL BLOCK ASSEMBLY
    Publication number: 20130036602
    Abstract: A method of installing the terminal block assembly onto a generator includes the step of providing a terminal block with multiple terminal studs. Protrusions that are integral with the terminal block are aligned with corresponding bores in a generator housing. The terminal block is mounted on the generator housing with the protrusions received in the bores. A terminal lead assembly is inserted through the protrusion, and a terminal pad of the terminal lead assembly is arranged over the terminal stud. A terminal lug is fastened to the terminal stud. A terminal cover is secured to the terminal block over the terminal with a boss of the terminal block received in a corresponding recess of the terminal cover.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 14, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: HAMILTON SUNDSTRAND CORPORATION
  • FILTER CIRCUIT FOR A MULTI-PHASE AC INPUT
    Publication number: 20130039105
    Abstract: A filter circuit is employed to filter undesirable harmonics in a multi-phase AC input and provide damping for oscillations associated with the filter circuit. The filter circuit includes a damping circuit connected between phases of the multi-phase AC input. The damping circuit including a rectifier for rectifying harmonics in the multi-phase AC input and a single damping resistor connected across the rectifier.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 14, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Gregory I. Rozman, Thomas A. Duclos, Duane A. James
  • Multi-level parallel phase converter
    Patent number: 8374009
    Abstract: A multi-level parallel phase power converter has a power source, a converter, and an electrical node. The converter includes multiple converter modules. Each of the converter modules has multiple multi-level power converters, a poly-phase interphase inductor, and a set of poly-phase power summing connections. The summed power of each of the multiple converter modules are connected together to form a single poly-phase power converter.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 12, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Frank Z. Feng, Waleed M. Said
  • Terminal lead insulator assembly for wound field synchronous machine
    Patent number: 8373318
    Abstract: A terminal lead insulator assembly for use in a wound field synchronous machine has a generally cylindrical skirt extending in a first direction from a radially larger face. The radially larger face is formed with a plurality of radially outwardly extending ears. The ears include central openings for receiving electrical connections. A rotor assembly, a wound field synchronous machine and a method of assembling such a rotor assembly, each of which include the terminal lead insulator assembly as mentioned above, are also disclosed and claimed.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: February 12, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Dhaval Patel, Jan Henry Abels, Eric J. Cunningham
  • STARTING/GENERATING SYSTEM WITH MULTI-FUNCTIONAL CIRCUIT BREAKER
    Publication number: 20130033038
    Abstract: A starting/generating system includes a rotor portion and a stator portion. The stator portion is connected to a DC power source during starting operations and to a DC load during generating operations, and includes a DC link having a first and second DC link bus, a DC link capacitor connected between the DC link buses, and an inverter/rectifier that converts AC power to DC power and vice versa. A switching device is connected in series on the first DC link bus and is controlled by a controller that turns the switching device On and Off to provide various functionality to the starting/generating system.
    Type: Application
    Filed: October 1, 2012
    Publication date: February 7, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Hamilton Sundstrand Corporation
  • GAS TURBINE START ARCHITECTURE
    Publication number: 20130031912
    Abstract: A gas turbine starting architecture is used to start a gas turbine engine having at least a first spool. The architecture includes an electric power distribution bus, a motor, a compressor, a pneumatic distribution circuit, an air turbine starter, and a first tower shaft. The motor converts electric power provided by the electric power distribution bus to mechanical power. In turn, the mechanical power provided by the motor is converted to pneumatic power by the compressor for provision to a pneumatic distribution circuit. The air turbine starter converts pneumatic power from the pneumatic distribution circuit to mechanical power is provided via the first tower shaft to the at least one spool on the gas turbine engine.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 7, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Adam M. Finney, Michael Krenz
  • POWER MANAGEMENT FOR LOADS SUPPLIED WITH POWER FROM WILD SOURCES
    Publication number: 20130033246
    Abstract: A solid-state power regulator (SSPR) regulates power delivered to a frequency tolerant load from a wild-source generator. The SSPR includes a solid-state switching device and a controller. The solid-state switching device is turned On to deliver power from the wild-source generator to the frequency-tolerant load and Off to prevent the delivery of power to the frequency-tolerant load. The controller monitors the power delivered to the frequency-tolerant load and selectively modulates the solid-state switching device to regulate the power delivered.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Michael Krenz, Carl A. Wagner, Todd A. Spierling
  • SYSTEM AND METHOD FOR INTERFACING BURST MODE DEVICES AND PAGE MODE DEVICES
    Publication number: 20130033945
    Abstract: A burst read control circuit acts as an interface to allow a burst-read capable device to execute burst reads from a page-mode capable memory device. The burst read control circuit coordinates burst read requests from the burst-read capable device and subsequent responses from the page-mode capable memory device by accessing subsequent and contiguous memory locations of the page-mode capable memory device.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 7, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Dean Anthony Rametta
  • Systems and methods for minimizing stray current in capacitive sensor data
    Patent number: 8365574
    Abstract: A method for minimizing stray current in capacitive sensor data includes receiving a first input from a first wire of a wire harness, the wire harness comprising a plurality of twisted wires, the first input comprising a first signal comprising first sensor data and stray current; receiving a second input from a second wire of the wire harness, the second input comprising a second signal comprising stray current; and subtracting the second signal from the first signal to determine the first sensor data. A system for minimizing stray current in capacitive sensor data is also provided.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: February 5, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Dennis E. Schmidt, Joseph A. James, Lawrence A. Cogsdill
  • Transformer assembly with enhanced air cooling
    Patent number: 8368497
    Abstract: A cooling system for a transformer comprises a fan duct and a housing which together enclose an interior space. A transformer located in the interior space is mounted on the fan duct, and has a plurality of core sections surrounded by windings and separated by gaps. An air channeling structure is located between the transformer and the fan duct. A cooling airflow path extends through the air channeling structure, and between core sections of the transformer.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 5, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, Mark W. Metzler, Frank Z. Feng
  • Deaerating method and assembly
    Patent number: 8366809
    Abstract: An example deaerator assembly includes a deaerating member disposed within a housing. The deaerating member includes an apertured stem extending from a pedestal. The apertured stem is configured to communicate air away from a mixture of air and coolant when the mixture of air and coolant is communicated about the apertured stem.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: February 5, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Michael J. Rollins, Melissa A. Bell
  • MOTOR WITH COOLED ROTOR
    Publication number: 20130025828
    Abstract: A fan includes an air movement implement including a blade and a motor that drives the air movement implement. The motor includes a rotor that includes an internal diameter heat exchanger and a heat pipe having a first end and a second end, the first end in thermal contact with the internal diameter heat exchanger and the second end in thermal contact with the blade.
    Type: Application
    Filed: July 26, 2011
    Publication date: January 31, 2013
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, Craig R. LeGros
  • Rotor position detection at standstill and low speeds using a PMG to operate a wound field synchronous machine
    Patent number: 8362728
    Abstract: A method of operating a WFSM in a motoring mode determines a relative position of a PMG rotor with respect to the WFSM rotor. A PMG is coupled to the WFSM via a coupling shaft. A relative difference between the WFSM rotor position and the PMG rotor position is determined based on carrier injection sensorless (“CIS”) stimulation signals. The relative difference between the PMG rotor and the WFSM main machine in conjunction with the PMG rotor position is used to determine the WFSM rotor position during motoring operation of the main machine. A stator of the WFSM main machine is energized to maintain operation of the WFSM in response to the detected main rotor position.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: January 29, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Dhaval Patel, Albert L. Markunas, Michael C. Harke
  • AIR TURBINE STARTER
    Publication number: 20130022454
    Abstract: A blade profile section for an air turbine starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge. The airfoil profile section is defined by a set of X-coordinates and Z-coordinates defined in any of Table I, Table II, Table III or Table IV scaled by a desired factor. The X-coordinate is the tangential direction, and the Z-coordinate is a radial direction between an airfoil root and an airfoil tip.
    Type: Application
    Filed: September 27, 2012
    Publication date: January 24, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: HAMILTON SUNDSTRAND CORPORATION
  • WIPER FOR TRANSLATING RAM
    Publication number: 20130019420
    Abstract: A wiper for a translating ram with recessed features includes a first element conforming to the recessed features of the translating ram; and a second element conforming to the external surface of the translating ram. The first element and second element conform to the cross-section of the translating ram when placed axially adjacent.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 24, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Timothy D. Gronli, Richard A. Himmelmann
  • THERMOELECTRIC CONVERSION OF WASTE HEAT FROM GENERATOR COOLING SYSTEM
    Publication number: 20130019917
    Abstract: An electrical generator includes a rotor, a stator core disposed axially around the rotor, a stator sleeve assembly disposed axially around the stator core, and a stator housing disposed axially around the stator sleeve assembly. The stator sleeve assembly includes a cylindrical stator sleeve and thermoelectric elements. The cylindrical stator sleeve has a radially inward facing surface and a radially outward facing surface. The thermoelectric elements are affixed to the radially outward facing surface of the cylindrical stator sleeve. The stator housing includes at least one coolant channel. The coolant channel is in thermal contact with the thermoelectric elements. The thermoelectric elements generate power as a function of the temperature difference between the cylindrical stator sleeve and the coolant channel.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Debabrata Pal
  • Aircraft Precooler Heat Exchanger
    Publication number: 20130020047
    Abstract: A heat exchanger is provided. The heat exchanger includes a first member having an inlet at a first end and a first flange at an opposite end. The first member is made from a nickel-chromium material. A second member is provided having a second flange one end coupled to the first flange. The second member further having an outlet on a second end opposite the second flange. The second member is made from titanium.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 24, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Donald E. Army, JR., Christina W. Millot