Patents Assigned to The Garrett Corporation
  • Fluid compressor control and operation
    Patent number: 4543036
    Abstract: A fluid compressor control and operation method wherein a tangential velocity is imparted to all or only a selected part of fluid flowing to a rotating impeller of the compressor. In a preferred embodiment, the impeller is of centrifugal radial flow configuration with an inlet duct effecting inlet flow radially inwardly, and then axially to the impeller. The compressor includes a plurality of axially elongate guide vanes disposed annularly of the inlet and axially moveable relatively thereof into and out of the inlet fluid flow.
    Type: Grant
    Filed: January 12, 1984
    Date of Patent: September 24, 1985
    Assignee: The Garrett Corporation
    Inventor: Donald L. Palmer
  • Method and apparatus for laser gear hardening
    Patent number: 4539461
    Abstract: Apparatus and method for laser hardening flank and root areas of gears are disclosed which utilize a non-linear scanning technique to produce a laser light bar which may be traversed over the flank and root areas of the gear to produce uniform case depth while preventing back-tempering by directing coolant flow on to gear tooth flanks opposite those currently being hardened.
    Type: Grant
    Filed: December 21, 1983
    Date of Patent: September 3, 1985
    Assignee: The Garrett Corporation
    Inventors: Gary F. Benedict, Jim Eskildsen
  • Gas turbine engine variable geometry combustor apparatus
    Patent number: 4532762
    Abstract: A variable geometry combustor for use in a gas turbine propulsion engine.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: August 6, 1985
    Assignee: The Garrett Corporation
    Inventors: Hukam C. Mongia, Edwin B. Coleman, Thomas W. Bruce
  • Method and apparatus for laser hardening of steel
    Patent number: 4533400
    Abstract: An apparatus and method is disclosed whereby a high power laser beam is mechanically split into two substantially identical beams which are focused and directed onto opposite working surfaces of a workpiece to simultaneously harden both working surfaces, thereby preventing back-temper.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: August 6, 1985
    Assignee: The Garrett Corporation
    Inventor: Gary F. Benedict
  • Intake vortex whistle silencing apparatus and methods
    Patent number: 4531356
    Abstract: A diametrically opposed pair of radially inwardly directed vortex-disturbing tabs are secured to a compressor intake assembly to eliminate vortex whistle therein.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: July 30, 1985
    Assignee: The Garrett Corporation
    Inventor: Charles G. Linder
  • Jet propulsion apparatus and methods
    Patent number: 4527388
    Abstract: A turbofan engine having a variable geometry exhaust nozzle.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: July 9, 1985
    Assignee: The Garrett Corporation
    Inventor: Frank B. Wallace, Jr.
  • Inflatable evacuation slide
    Patent number: 4526262
    Abstract: A sequenced, directional restraint system for an inflatable evacuation slide wherein three separate restraints are provided across the width of the fluid distensible member of the inflatable evacuation slide and a sequenced, directional method of deploying an inflatable evacuation slide from an elevated egress to a lower surface.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: July 2, 1985
    Assignee: The Garrett Corporation
    Inventor: Bruce Malcolm
  • Internal combustion engine having a variably engagable slipping wet clutch for driving a supercharger
    Patent number: 4519373
    Abstract: A supercharger includes a compressor system which is driven through an electro-magnetically actuated variable slipping wet clutch to supply boost to an engine in the form of compressed air according to load requirements. Apparatus and methods are disclosed for supplying boost to the engine by varying the drive torque via the clutch system to the compressor system.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: May 28, 1985
    Assignee: The Garrett Corporation
    Inventors: James A. Hardy, David L. Alfano
  • Turbocharger compressor valve
    Patent number: 4517803
    Abstract: A turbocharger, supercharger or like apparatus for delivering pressurized airflow to an engine, with a housing and valve structure associated with the compressor for permitting selective recirculating flow from the high pressure compressor exhaust to the inlet thereof. A diaphragm acts both as the valve and to define a signal chamber.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: May 21, 1985
    Assignee: The Garrett Corporation
    Inventor: Terry Jamison
  • Turbocharger combustor method
    Patent number: 4517802
    Abstract: A combustor system for use with a turbocharged combustion engine comprises a combustor connected for continuous passage of engine exhaust gases. The combustor includes a relatively low pressure fuel injection system for atomizing fuel for combustion in a substantially vitiated atmosphere, and a fuel control system for supplying fuel to the combustor in response to engine operating conditions.
    Type: Grant
    Filed: January 20, 1984
    Date of Patent: May 21, 1985
    Assignee: The Garrett Corporation
    Inventors: Robert J. Kobayashi, James H. Nancarrow, Jeffrey L. Alger
  • Supercharged diesel engine air inflow control system
    Patent number: 4515136
    Abstract: A control system is provided for a supercharged diesel engine to control engine air inflow in response to an operator-selected fuel flow and in accordance with a predetermined air-fuel ratio schedule chosen for minimizing undesirable exhaust emissions throughout a broad range of engine operating conditions.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: May 7, 1985
    Assignee: The Garrett Corporation
    Inventors: Robert L. Cholvin, Charles E. McInerney, James N. Nancarrow, Jack L. Gantz
  • Supercharged diesel engine air inflow control system
    Patent number: 4513730
    Abstract: A control system is provided for a supercharged diesel engine to control engine air flow in response to an operator-selected fuel flow and in accordance with a predetermined air-fuel ratio schedule chosen for minimizing undesirable exhaust emissions throughout a broad range of engine operating conditions. The control system includes a force-biased relief valve movable between closed and open positions in response to the pressure of air supplied to the engine, wherein the force-bias acting upon the relief valve is altered in response to the operator-selected fuel flow to the engine.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: April 30, 1985
    Assignee: The Garrett Corporation
    Inventors: Robert L. Cholvin, Charles E. McInerney, James N. Nancarrow, Jack L. Gantz
  • Heat exchanger support system providing for thermal isolation and growth
    Patent number: 4511106
    Abstract: Apparatus for supporting and constraining opposed end members of a heat exchanger frame structure while maintaining the high temperature portions of the heat exchanger thermally isolated from the frame and accommodating relative movement of the heat exchanger due to thermal growth. Thermal isolation with structural support is achieved by the use of strategically positioned, thin-walled metal members aligned in the direction of heat travel between high temperature portions of the heat exchanger and adjacent frame elements. Opposed portions of the heat exchanger are tied together by rods extending between them and secured thereto. Longitudinal growth of the heat exchanger core and associated ducting is accommodated by the provision of flange guides slidable on guide pins attached to the frame.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: April 16, 1985
    Assignee: The Garrett Corporation
    Inventor: Richard F. Graves
  • Air oxygen and nitrogen concentration device
    Patent number: 4508548
    Abstract: An air separation module is optimized for producing both an oxygen-concentrated and nitrogen-concentrated gas stream.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: April 2, 1985
    Assignee: The Garrett Corporation
    Inventor: Scott A. Manatt
  • Fuel mass flow measurement and control system
    Patent number: 4508127
    Abstract: A turbine engine fuel measuring and control system which incorporates a fluidic density sensor which is unaffected by variations in the physical characteristics of the fuel supplied to the engine.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: April 2, 1985
    Assignee: The Garrett Corporation
    Inventor: John F. Thurston
  • Three wheel center fan cooling turbine apparatus and associated methods
    Patent number: 4507939
    Abstract: A three wheel air cycle cooling machine has its fan positioned between its turbine and compressor on a common drive shaft, and utilizes pressurized turbine inlet air to lubricate the shaft's journal and thrust bearings.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: April 2, 1985
    Assignee: The Garrett Corporation
    Inventor: Kurt H. Wieland
  • Pressure regulator system
    Patent number: 4506690
    Abstract: A pressure regulator system for providing controlled reduction of fluid pressure from a relatively high pressure fluid source to a relatively low regulated fluid pressure output. The pressure regulator includes a pressure reduction regulator designed for stable flow under transonic conditions, and an improved solenoid valve assembly for switching the reduction regulator to an operational condition.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: March 26, 1985
    Assignee: The Garrett Corporation
    Inventor: John D. Mitchell
  • Fluid flow control apparatus and method
    Patent number: 4506594
    Abstract: A fluid flow control apparatus and method wherein a pair of output signals from a pair of fluid flow sensors having differing characteristics are blended according to a preselected law to produce a third signal controlling fluid flow.
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: March 26, 1985
    Assignee: The Garrett Corporation
    Inventors: Charles M. Rowland, James A. Denneny, Jr.
  • No-back gas generator and method
    Patent number: 4505105
    Abstract: An emergency power unit with a gas generator having a locking means which compensates for compaction and degradation in the catalyst bed to reduce destructive oscillatory vibration in the gas generator, thereby substantially extending the life and assuring dependable performance of the gas generator.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: March 19, 1985
    Assignee: The Garrett Corporation
    Inventor: Ronald J. Ness
  • Compact cooling turbine-heat exchanger assembly
    Patent number: 4503683
    Abstract: A compact air cycle refrigeration system utilizes a three wheel air cycle cooling machine having a fan mounted between a turbine and compressor on a common drive shaft. The fan is positioned between two series-mounted heat exchangers mounted in a ram air duct and used to cool hot engine bleed air which drives the turbine.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: March 12, 1985
    Assignee: The Garrett Corporation
    Inventors: Kurt H. Wieland, Donald M. Spencer, Robert C. Kinsell