Patents Assigned to The Garrett Corporation
  • Magnetic interpole apparatus for improving commutation characteristics of a dynamoelectric machine
    Patent number: 4435664
    Abstract: An interpole for a direct current dynamoelectric machine is provided at the tip thereof with a flux shift winding, or windings, to effect a shifted magnetic flux strength to counteract induced voltages of the commutated armature coils moving through the commutating zone.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: March 6, 1984
    Assignee: The Garrett Corporation
    Inventor: Walter F. Boesel
  • Foil bearing rubbing surface coating application methods
    Patent number: 4435839
    Abstract: A specially designed method is used to apply a graphite fluoride (CFx)-polyimide binder dry lubricant coating to the rubbing contact surface of a foil element used in a high speed gas foil bearing.
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: March 6, 1984
    Assignee: The Garrett Corporation
    Inventors: Alston L. Gu, Alexander Silver
  • High speed accessory disconnect apparatus and methods
    Patent number: 4434881
    Abstract: A disconnect member is spline-connected to one end of the connecting drive shaft of an engine and a driven accessory, and is axially translatable into and out of coupling engagement with the engine. The disconnect member has a spiraled, axially ramped cam surface formed thereon which cooperates with a rotatable cam follower selectively movable into engagement therewith to axially drive the rotating disconnect member relative to the cam follower, thereby uncoupling the engine from its driven accessory. When the cam follower is disengaged from the cam surface, a reset spring automatically recouples the disconnect member to the engine.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: March 6, 1984
    Assignee: The Garrett Corporation
    Inventors: Jpseph Denk, William B. Martin
  • Heat exchanger method and apparatus
    Patent number: 4433723
    Abstract: In the apparatus of the present invention, air flow control inserts are disposed within the formed tube air outlet manifolds of a heat exchanger of the counterflow type wherein the manifolds have openings communicating with air passages of the heat exchanger core. Each insert is generally tubular in shape, having an intermediate cylindrical tube portion, and larger diameter, end portions, which are substantially equal to the diameter of an outlet manifold. Each intermediate insert portion is initially provided with a plurality of peripheral, longitudinally equally spaced slots, equal in number to the number of openings in a manifold, and of such circumferential lengths as to subtend angles substantially equal to the angles subtended by the manifold openings. Tube material adjacent the slots is then urged inwardly of the tube to form apertures, and adjacent louvers.
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: February 28, 1984
    Assignee: The Garrett Corporation
    Inventor: Kenneth O. Parker
  • Compressor bleed air control apparatus and methods
    Patent number: 4428194
    Abstract: A turbine engine accessory power unit has a compressor bleed air control system in which a surge bleed valve is proportionally and integrally controlled to maintain a constant minimum compressor bleed flow rate slightly above the compressor's surge flow rate. The system control parameter is automatically reset as a function of the position of the compressor's adjustable inlet guide vanes to assure optimum control system performance throughout the air delivery range of the compressor.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: January 31, 1984
    Assignee: The Garrett Corporation
    Inventors: Richard F. Stokes, James D. Timm, Stephen R. LaCroix, Milton R. Adams
  • Nitridation and brazing of assemblies with titanium-containing iron based alloys
    Patent number: 4427461
    Abstract: A method of internally nitriding and brazing assemblies having iron based components to which titanium has been internally added prior to casting. A brazed assembly includes iron based components to which titanium is added prior to casting and is dispersion strengthened by nitridation to form an array of titanium nitride particles.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: January 24, 1984
    Assignee: The Garrett Corporation
    Inventor: Lynn E. Kindlimann
  • Turbocharger shaft bearing
    Patent number: 4427309
    Abstract: A bearing for supporting a turbocharger shaft comprises a one-piece cylindrical bearing sleeve for rotational floating between a turbocharger housing and shaft. The bearing includes an inner diameter configured to define a plurality of axially extending arcuate lands formed on a common radius and separated by oil-receiving recesses.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: January 24, 1984
    Assignee: The Garrett Corporation
    Inventor: James E. T. Blake
  • Fuel injection
    Patent number: 4425893
    Abstract: A method and apparatus for injecting timed pulses of fuel of variable quantity into a high speed compression-ignition engine.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: January 17, 1984
    Assignee: The Garrett Corporation
    Inventors: Robert W. McJones, Robert S. McCarty, Joseph S. Cardillo
  • Flywheel assisted electro-mechanical drive system
    Patent number: 4423794
    Abstract: A vehicle propulsion system combines an electric motor-generator and battery with a flywheel as regenerative power sources. A planetary differential gear train couples together the shafts from the flywheel and the motor-generator. A controller connected between the battery and the motor-generator serves to maintain the current level to or from the battery with a range which develops optimum efficiency of battery energy utilization while causing the flywheel to absorb the relatively large peaks in battery power requirements.In one embodiment, the controller is made up of a transistorized chopper, a free-wheeling diode, a regenerative diode, a current sensor, and a switch to change the controller between the motor and generator modes of operation. The motor-generator is a separately excited, DC machine.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: January 3, 1984
    Assignee: The Garrett Corporation
    Inventor: William H. Beck
  • Duct lining
    Patent number: 4421455
    Abstract: A duct lining exposing a substantially smooth, liquid impermeable outer surface to fluid flowing therealong.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: December 20, 1983
    Assignee: The Garrett Corporation
    Inventor: Raymond H. Tomren
  • Face seal system
    Patent number: 4420160
    Abstract: A face seal system for sealing passage of a rotatable shaft through a wall separating regions subject to differential fluid pressure. A seal member is pressure compensated for sealing the passage with a sealing force responsive to the pressure differential across the passage.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: December 13, 1983
    Assignee: The Garrett Corporation
    Inventor: Herman C. Laham
  • Fluidic thruster control and method
    Patent number: 4413795
    Abstract: A fluidic thruster control system and method for guided missiles and the like, which utilizes a fluidic jet interaction device for controlling a downstream fluidic vortex amplifier to modulate exhaust flow through thrust nozzles.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: November 8, 1983
    Assignee: The Garrett Corporation
    Inventor: William F. Ryan
  • Brake control system
    Patent number: 4414631
    Abstract: The discharge of a capacitor energizes a relay to actuate the dump valve of a braking system to interrupt braking action upon the occurrence of wheel slide.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: November 8, 1983
    Assignee: The Garrett Corporation
    Inventor: Arden L. Schug
  • Iron-based brazing alloy compositions and brazed assemblies with iron based brazing alloys
    Patent number: 4410604
    Abstract: An economical brazing alloy composition includes high amounts of iron. A brazed assembly includes iron-based brazing alloys.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: October 18, 1983
    Assignee: The Garrett Corporation
    Inventors: Matthew J. Pohlman, Lynn E. Kindlimann
  • Analog fluidic speed sensor
    Patent number: 4406166
    Abstract: An analog fluidic speed sensor including novel structure enhancing the signal-to-noise ratio of the sensor.
    Type: Grant
    Filed: November 27, 1981
    Date of Patent: September 27, 1983
    Assignee: The Garrett Corporation
    Inventor: John T. Itamoto
  • Turbocharger control actuator
    Patent number: 4403538
    Abstract: A control actuator for a turbocharger comprises an actuator rod coupled within an actuator housing to a pressure responsive diaphragm biased by a spring, and projecting out of the housing for connection to a turbocharger wastegate valve. A seal assembly on the rod accommodates sealed axial rod displacement, and includes a spherical seat maintained by a second spring in relatively low pressure pivotally sealing relation with the housing.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: September 13, 1983
    Assignee: The Garrett Corporation
    Inventor: Leif Rise
  • Throttle linkage control
    Patent number: 4401077
    Abstract: A differential throttle linkage control for controlling the flow of fuel to an engine receives a main input from the throttle lever, and a second input from a trim actuator motor through a movable portion of a programmed split cam. The throttle control algebraically sums the inputs to produce a single output operably connected to the fuel metering device of the engine. The programmed split cam modifies or neutralizes the effects of the trim input through selected ranges of the throttle lever input stroke.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: August 30, 1983
    Assignee: The Garrett Corporation
    Inventor: Robert W. Earl
  • Apparatus and method for centrifuging
    Patent number: 4397637
    Abstract: A centrifuge having automatic purging elements for discharging contaminants from the centrifuge in response to the rotational speed of the centrifuge.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: August 9, 1983
    Assignee: The Garrett Corporation
    Inventor: Theodore W. Place
  • Static pressure probe and method
    Patent number: 4393692
    Abstract: A static pressure probe capable of measuring the static pressure of an airstream in which particle contamination and/or ice formation at the airflow receiving orifice of the probe is minimized by method and apparatus presenting a stagnant air pocket directly adjacent and downstream of the orifice.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: July 19, 1983
    Assignee: The Garrett Corporation
    Inventors: Walter L. Clark, Trevor G. Sutton
  • Gas turbine fan blade
    Patent number: D273037
    Type: Grant
    Filed: January 15, 1981
    Date of Patent: March 13, 1984
    Assignee: The Garrett Corporation
    Inventor: Paul R. Dodge