Patents Assigned to Hamilton Sundstrand Corporation
  • HIGH VOLTAGE DC POWER GENERATION
    Publication number: 20120119711
    Abstract: A DC power generating system includes a permanent magnet generator (PMG), an active rectifier in electrical communication with the PMG, and a controller in electrical communication with the active rectifier, wherein the controller is configured to regulate d-q components of a stator current of the PMG in a synchronous reference frame.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 17, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Gregory I. Rozman, Steven J. Moss, Si J. Fang
  • Method and apparatus for evaluation of coated parts
    Patent number: 8177953
    Abstract: A method of verifying performance of a coated part includes calculating a deflection value as a function of a predetermined strain threshold value and a total thickness of a test coupon that comprises a coating on a substrate. The coating of the test coupon is co-deposited in a deposition process for producing a coated part. The test coupon is bent in an amount equal to the calculated deflection value and then evaluated as an indication of whether a mechanical characteristic of the coated part meets a specified level.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: May 15, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Aaron T. Nardi, Blair A. Smith
  • INTEGRATED PERMANENT MAGNET ALTERNATOR AND COOLING FAN
    Publication number: 20120112575
    Abstract: A permanent magnet alternator includes a permanent magnet alternator stator attached to a housing. A shaft is rotatable with respect to the housing with a permanent magnet alternator rotor attached to the shaft. The permanent magnet alternator rotor is positioned with respect to the permanent magnet alternator stator so as to generate electricity when the shaft rotates. A cooling fan is also attached to the shaft and is positioned in a gas flow path for flowing air through the gas flow path.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Michael R. Blewett, Harold W. Hipsky, Gerald P. Dyer
  • AIR TURBINE STARTER ONE-PIECE AIR EXIT PORT BAFFLE
    Publication number: 20120114475
    Abstract: A one-piece air exit port baffle for containment for an air start turbine includes a circular arc section with a circumferentially corrugated circular arc section and a flange section. The circumferentially corrugated circular arc section has a plurality of openings. The flange section is axially adjacent to the circumferentially corrugated circular arc section and configured for attachment adjacent to an air exit port of an air turbine starter.
    Type: Application
    Filed: November 10, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Dean A. Norem
  • SEAL ASSEMBLY FOR METERING VALVE
    Publication number: 20120112103
    Abstract: A seal assembly for an electric component includes a generally cylindrical plug, a first O-ring seal and a second O-ring seal. The plug includes a sidewall extending between first and second end walls. An annular groove circumscribes the sidewall. A first O-ring seal is disposed in the annular groove. A first through-bore extends between the first end wall and the second end wall. A first counter-bore circumscribes the first through-bore in the first end wall. A second O-ring seal is disposed within the first counter-bore.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Sandeep Krishnan
  • RAM AIR TURBINE STARTUP
    Publication number: 20120114485
    Abstract: A ram air turbine (RAT) in which a cam follower is operably coupled to turbine blades such that a cam follower position determines turbine blade pitch.
    Type: Application
    Filed: November 4, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: David Everett Russ
  • COMBINED AIR TURBINE STARTER, AIR-OIL COOLER, AND FAN
    Publication number: 20120111022
    Abstract: An air turbine starter assembly includes a starter turbine housing having a turbine gas flow path and a fan gas flow path, and a shaft rotatable with respect to the starter turbine housing. A plurality of turbine blades are connected to the shaft. A plurality of fan blades are also connected to the shaft.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Gerald P. Dyer
  • HEAT TRANSFER ASSEMBLY FOR ELECTRIC MOTOR ROTOR
    Publication number: 20120112578
    Abstract: A motor driven assembly comprises a motor shaft, a rotor, a passage, and a corrugated fin heat transfer structure. The motor shaft is mounted for rotation about a rotational axis. The rotor is located radially about the shaft. The passage extends through the rotor alongside the motor shaft. The corrugated fin heat transfer structure is disposed within the passage radially aligned with the rotor.
    Type: Application
    Filed: November 10, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Robert Telakowski, Debabrata Pal
  • MOTOR DRIVEN CABIN AIR COMPRESSOR WITH VARIABLE DIFFUSER
    Publication number: 20120114463
    Abstract: An air cycle machine is provided and includes a compressor section having a variable area diffuser, a turbine section having an inlet nozzle with a variable size, a motor to drive the compressor and a common rotating shaft on which the compressor section, the turbine section and the motor are mounted, the turbine section driving rotation of the shaft to drive the compressor section with the motor.
    Type: Application
    Filed: November 4, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Craig M. Beers, Christopher McAuliffe
  • THERMAL MANAGEMENT SYSTEM WITH STAGED COOLING
    Publication number: 20120111046
    Abstract: A thermal management system comprises a first heat exchanger having an inlet and an outlet, a second heat exchanger having an inlet and an outlet, a fluid loop, a first heat pump, and a second heat pump. The fluid loop circulates a fluid, and forms a continuous path between the first and second heat exchangers. The first heat pump is connected to the fluid loop and is disposed between the outlet of the second heat exchanger and the inlet of the first heat exchanger. The second heat pump is connected to the fluid loop and is disposed between the outlet of the first heat exchanger and the inlet of the second heat exchanger.
    Type: Application
    Filed: January 19, 2012
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: George Eugene Wilmot, JR., Diane G. Drew, Gregory M. Ott
  • AQUEOUS BASED COOLING OF COMPONENTS HAVING HIGH SURFACE AREA LEVELS OF ALUMINUM OR NICKEL
    Publication number: 20120111536
    Abstract: An aqueous-based coolant for cooling and reducing corrosion potential in applications having high aluminum or nickel surface area to coolant volume ratios has a pH between 8 and 9 and includes about 35 weight % to about 65 weight % propylene glycol, about 1.0 weight % to about 4.0 weight % 2-ethylhexanoic acid, about 0.25 weight % to about 1.0 weight % sebacic acid, about 0.25 weight % to about 1.0 weight % benzoic acid and about 0.03 weight % to about 0.1 weight % molybdate oxyanion. A cooling system includes an aluminum or nickel surface and the aqueous-based coolant. A method of cooling a component surface containing aluminum or nickel includes delivering the aqueous-based coolant to the component surface and cooling the component surface with the aqueous-based coolant.
    Type: Application
    Filed: November 10, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: John W. Steele, Durwood M. Beringer, Mark R. Jaworowski, Jerome D. Varsik, Jesse Morenz, Brian Tull
  • VERTICAL SHAFT PUMPING SYSTEM
    Publication number: 20120114504
    Abstract: A vertical shaft pumping system includes a hollow shaft with an inner bore, an inlet end and an outlet end, the outlet end with at least one liquid distribution hole. It further includes an impeller positioned at the lower inlet end of the shaft, with a cylindrical base portion with a lower end, a central hole for drawing fluid into the shaft, and a plurality of teeth extending upwards from the cylindrical base portion and extending radially from the central hole to the outer cylindrical circumference for increasing tractive force of liquid in the shaft when the impeller and shaft are rotating; and a motor for rotating the shaft with the impeller to centrifugally pump a liquid vertically in the shaft from the lower inlet end to the upper outlet end.
    Type: Application
    Filed: November 10, 2010
    Publication date: May 10, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Robert Telakowski, Lino S. Italia, James R. Morin
  • Pitch change actuation system for a counter-rotating propeller
    Patent number: 8172530
    Abstract: A system for adjusting the pitch of a counter-rotating propeller has a propeller shaft, a forward propeller driven by the propeller shaft, and an aft propeller connected with the forward propeller. The forward propeller has a hub, blades mounted within the hub, and an actuator connected with an end of the blades. The aft propeller has a hub, blades mounted within the hub, and a cam assembly connected with an end of the blades. The actuator of the forward propeller has a forward end and an aft end, wherein the aft end is connected with the cam assembly of the aft propeller. Thus, when the actuator moves in an axial direction, the cam assembly moves relative to the actuator and the pitch of the forward propeller blades and the pitch of the aft propeller blades are simultaneously adjusted.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: May 8, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Robert H. Perkinson
  • Compartment cooling loss identification for efficient system operation
    Patent number: 8171745
    Abstract: A galley cooling system comprises a plurality of galley cooling units each to be associated with separate galleys. A sensor senses a condition within each of the galleys. A control determines whether a sensed condition is indicative of efficient operation of a particular galley cooling unit, and the control is operable to decrease cooling capacity delivered to a galley cooling unit which is experiencing inefficient operation. An aircraft galley system incorporating the above cooling unit, and a method of operating a galley cooling unit are also disclosed and claimed.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: May 8, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Bruce R. Schroder
  • Radial compressor of asymmetric cyclic sector with coupled blades tuned at anti-nodes
    Patent number: 8172510
    Abstract: A gas turbine engine includes a radial compressor having first and second blades. The first blade has a tuned leading edge that prevents either blade from exciting at a natural frequency at speeds within an expected operating speed range.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: May 8, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Loc Q. Duong, Shiv C. Gupta, Xiaolan Hu
  • Accessory gearbox system with compressor driven seal air supply
    Patent number: 8172512
    Abstract: An accessory gearbox system for a gas turbine engine includes an accessory compressor mounted to a gearbox housing. The gearbox housing defines a seal air core, and the gearbox housing communicates a seal airflow through the seal air core.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: May 8, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Keith E. Short, Jeffrey M. Makulec, Brian Kent Rockwell, Michael F. Cass, Gregory W. Vermillion
  • PARTIAL COARSE PITCH START RAM AIR TURBINE WITH ENHANCED SPRING SUPPORT
    Publication number: 20120107119
    Abstract: A Ram Air Turbine (RAT) is provided and includes a turbine hub having an end plate and a nose cone attached thereto at trailing and leading ends, respectively, a governor shaft, to which turbine blades are connected, which is coupled to the end plate and supported within the nose cone to be rotatable with the turbine blades about a central axis thereof and axially movable from a first position relative to the turbine hub to a second position relative to the turbine hub and a hub assembly operably coupled to the turbine hub, the governor shaft and the turbine blades whereby the hub assembly biases the governor shaft toward the first position at low rotational speeds such that the turbine blades assume a partial coarse pitch angle, and the second position at high rotational speeds such that the turbine blades assume a fine pitch angle.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 3, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: David G. Bannon
  • ANTI-ROTATION MECHANISM FOR PITOT TUBE
    Publication number: 20120103108
    Abstract: A valve assembly is provided and includes a pitot tube having an angled tip to extract from a duct formed by a housing a sample of a fluid to be communicated to an actuator configured to operate the duct, the pitot tube being disposed within the housing whereby the pitot tube is fixed longitudinally between the actuator and the housing and laterally within the housing and an anti-rotation mechanism coupled with the pitot tube to rotationally secure the pitot tube such that the angled tip is fixed to face rearwardly.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 3, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Josh Kamp, Michael T. Burnickas
  • MOTOR ASSISTED FINE PITCH STARTUP RAM AIR TURBINE
    Publication number: 20120107086
    Abstract: A startup assistance apparatus for a fine pitch Ram Air Turbine (RAT) is provided and includes a generator to provide motive power to the RAT when operating in a first mode and to generate electricity from RAT operation when operating in a second mode and a control unit, including a speed sensing unit configured to sense an operating condition of the generator and a controller operably coupled to the generator and configured to control the generator to operate in the first or the second mode based on the sensed operating condition.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 3, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: David G. Bannon, Scott J. Marks
  • Shunt Regulator for Overvoltage Protection at Transformer Rectifier Unit of Electrical Generating System
    Publication number: 20120106007
    Abstract: An electrical system includes an alternating current (AC) source; a transformer rectifier unit (TRU) connected to the AC source, the TRU configured to receive AC power from the AC source, convert the AC power to direct current (DC) power, and output DC power; a DC bus configured to receive the DC power output by the TRU; at least one DC load powered by the DC bus; and a shunt regulator connected to the output of the TRU, the shunt regulator configured to overload the output of the TRU in the event of an overvoltage condition at the output of the TRU, such that a voltage available to the DC bus during the overvoltage condition does not exceed a reference voltage.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Bruce D. Beneditz