Patents by Inventor James B. Hoke

James B. Hoke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10317081
    Abstract: A fuel injector assembly for a combustor is provided, including a fuel nozzle having an axial inflow swirler and one or more radial inflow swirlers spaced radially outward of the downstream end of the fuel nozzle and mounted to the combustor, wherein the airstreams produced by the swirlers airblast atomize fuel films produced by the fuel nozzle.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: June 11, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: James B. Hoke
  • Patent number: 10317080
    Abstract: A liner panel for use in a combustor for a gas turbine engine includes a forward region including a multiple of effusion passages each directed at an orientation consistent with a local swirl direction of combustion gases. Another liner panel for use in a combustor for a gas turbine engine includes a forward region forward of a dilution passage and an aft region aft of the forward region. The forward region includes a multiple of effusion passages each directed generally circumferentially. The aft region includes a multiple of effusion passages each directed at an orientation generally axially. A method of cooling a wall assembly within a combustor of a gas turbine engine includes orienting a multiple of effusion passages within a forward region consistent with a local swirl direction of combustion gases.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: June 11, 2019
    Assignee: United Technologies Corporation
    Inventors: John S. Tu, Jr., Timothy S. Snyder, James B. Hoke, James P. Bangerter, Dennis J. Duhamel, David A. Burns
  • Patent number: 10309314
    Abstract: A heat shield for a combustor of a gas turbine engine includes a cold side opposite a hot side, the cold side defines a grommet that surrounds an igniter aperture, the grommet includes a multiple of fins.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: June 4, 2019
    Assignee: United Technologies Corporation
    Inventors: James B. Hoke, James P. Bangerter
  • Publication number: 20190128187
    Abstract: Combustor panels including panel bodies with first and second sides, a pin array extending from the first side, wherein each pin extends a first height, has a pin diameter, and is separated from adjacent pins by a pin array separation distance. A structural protrusion extends from the first side. No pins of the pin array are located within a flashing distance that is equal to a protrusion separation distance plus half of the pin diameter, wherein a location of the pin is measured from a center point of the pin to a closest point on the exterior surface of the structural protrusion. At least one pin array extension is integrally formed with the structural protrusion, the pin array extension extending along the first side to a position that replaces a pin of the pin array that would be within the flashing distance.
    Type: Application
    Filed: October 27, 2017
    Publication date: May 2, 2019
    Inventors: Jason Shenny, John J. Rup, JR., Robert M. Sonntag, James B. Hoke, San Quach, Richard G. Ullrich
  • Patent number: 10260748
    Abstract: A method of tailoring a combustor flow for a gas turbine engine includes controlling an airflow into a swirler to be generally uniform and controlling an airflow into a quench zone to provide a desired pattern factor.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 16, 2019
    Assignee: United Technologies Corporation
    Inventors: Timothy S. Snyder, Randal G. McKinney, James B. Hoke
  • Patent number: 10260750
    Abstract: A combustor of a gas turbine engine including a combustor shell having an interior surface defining a combustion chamber, a first panel mounted to the interior surface at a first position, the first panel having a first surface and a first rail extending from the first surface toward the combustor shell, the first rail configured at a first angle relative to the first surface, and a second panel mounted to the interior surface at a second position axially adjacent to the first panel, the second panel having a second surface and a second rail extending from the second surface toward the combustor shell, the second rail configured at a second angle relative to the second surface. The first and second rails are proximal to each other and define a circumferential gap there between and at least one of the first or second angles is an acute angle.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: April 16, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: John S. Tu, James B. Hoke, Jonathan Jeffery Eastwood, Kevin Joseph Low, Sean D. Bradshaw
  • Patent number: 10240533
    Abstract: A fuel system for a gas turbine engine includes a plurality of duplex nozzles arranged on each side of top dead center and a plurality of simplex nozzles. A primary manifold is operable to communicate fuel to a primary flow jet in each of the plurality of duplex nozzles and a secondary manifold is operable to communicate fuel to a secondary flow jet in each of the plurality of duplex nozzles and a secondary flow jet in each of the plurality of simplex nozzles. An equalizer valve that is in communication with both the primary manifold and the secondary manifold distributes fuel at various pressures to both the primary and secondary manifolds.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 26, 2019
    Assignee: United Technologies Corporation
    Inventors: James B. Hoke, Timothy S. Snyder, David Kwoka, Robert M. Sonntag
  • Publication number: 20190078787
    Abstract: A combustor panel may include an attachment feature. Because conventional attachment features of conventional combustor panels may be insufficiently cooled, the present disclosure provides various combustor configurations for reducing hotspots in the vicinity of attachment features and/or for providing cooling airflow to and in the vicinity of attachment features.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 14, 2019
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Benjamin D Bellows, Brandon W Spangler, David J Hyland, Dennis M Moura, James B Hoke, Ricardo Trindade, Stephen K Kramer, Steven Bruce Gautschi
  • Publication number: 20190078788
    Abstract: A combustor panel may include an attachment feature. Because conventional attachment features of conventional combustor panels may be insufficiently cooled, the present disclosure provides various combustor configurations for reducing hotspots in the vicinity of attachment features and/or for providing cooling airflow to and in the vicinity of attachment features.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 14, 2019
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Tracy A Propheter-Hinckley, Atul Kohli, Benjamin D Bellows, Dustin W Davis, James B Hoke, Stephen K Kramer, Steven Bruce Gautschi, Trevor Rudy
  • Patent number: 10215411
    Abstract: A combustor of a gas turbine engine including a combustor shell having an interior surface, a first panel mounted to the interior surface at a first position and a second panel mounted to the interior surface at a second position. The first panel has a first end, a first combustion chamber surface parallel with the interior surface, a first rail extending from the first combustion chamber surface toward the interior surface of the combustor shell, and a first extension extending axially from the first rail to the end of the first panel. The second panel has a second end, a second combustion chamber surface, and a second rail extending from the second combustion chamber surface toward the interior surface of the combustor shell. The first end and the second end are proximal to each other and define a circumferentially extending gap there between.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: February 26, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: John S. Tu, James B. Hoke, David Kwoka, Jonathan Jeffery Eastwood
  • Publication number: 20180298819
    Abstract: Combustor panels for use in gas turbine engine combustors having a panel body having a peripheral rail around a periphery of the panel body, a first boss formed on the panel body and surrounding a first aperture that passes through the panel body, and a first webbing that extends from the peripheral rail toward the first boss. A first annular channel is formed between the first webbing and the first boss and surrounds the first boss and a first web pocket is formed within the first webbing between the peripheral rail and the first boss and defines a local extension of the first annular channel extending from the first boss to the peripheral rail.
    Type: Application
    Filed: April 18, 2017
    Publication date: October 18, 2018
    Inventors: Dennis M. Moura, James B. Hoke, Reza Rezvani
  • Publication number: 20180283687
    Abstract: A combustor for a gas turbine engine includes a combustor shell having a shell opening therethrough, a combustor panel having a stud attached thereto, the stud extending through the shell opening. The stud includes a standoff to define an intermediate passage between the combustor shell and the combustor panel. A retainer is attached to the stud. A washer surrounds the stud and is positioned between the retainer and the combustor shell. The washer at least partially defines a cooling flow passage configured to direct a cooling airflow through the shell opening to impinge the cooling flow on at least one of the stud or the standoff.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 4, 2018
    Inventors: Tracy A. Propheter-Hinckley, Mark F. Zelesky, Atul Kohli, Dustin W. Davis, Ricardo Trindade, Steven Bruce Gautschi, Brandon W. Spangler, Trevor Rudy, Benjamin Bellows, Dave J. Hyland, James B. Hoke, Stephen K. Kramer, Dennis M. Moura
  • Patent number: 10088159
    Abstract: A liner assembly for a combustor of a gas turbine engine according to one disclosed non-limiting embodiment of the present disclosure includes a grommet with a multiple of grommet cooling passages.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 2, 2018
    Assignee: United Technologies Corporation
    Inventors: Nurhak Erbas-Sen, James B. Hoke, John S. Tu, Monica Pacheco-Tougas
  • Patent number: 10077903
    Abstract: Aspects of the disclosure are directed to a cooling design feature for inclusion in a liner of an aircraft, comprising: a plurality of angled holes, and at least one through hole separating all combinations of any two of the angled holes, wherein the at least one through hole is oriented at an angle that is substantially perpendicular to a surface of the liner, and wherein each of the plurality of angled holes are non-parallel to the at least one through hole.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: September 18, 2018
    Assignee: United Technologies Corporation
    Inventors: John S. Tu, James B. Hoke, Monica Pacheco-Tougas, Timothy S. Snyder, Dennis M. Moura, Anthony Van
  • Patent number: 9958162
    Abstract: A combustor assembly includes a first wall, a second wall, a bulkhead and a plurality of fuel injectors. The bulkhead forms a combustion chamber with the first and the second walls. The fuel injectors are configured with the first wall in a unique and/or a fluctuating pattern.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: May 1, 2018
    Assignee: United Technologies Corporation
    Inventors: Zhongtao Dai, Jeffrey M. Cohen, Kristin Kopp-Vaughan, James B. Hoke
  • Publication number: 20180003387
    Abstract: A fuel injection system may comprise a mixer and a fuel injector disposed within the mixer. The mixer may comprise an outer housing with an exit port and a bluff body extending across the exit port of the outer housing. A flared surface of the mixer may match a contour of the bluff body.
    Type: Application
    Filed: September 19, 2017
    Publication date: January 4, 2018
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Albert K. Cheung, James B. Hoke, Randal G. McKinney
  • Patent number: 9797601
    Abstract: A combustor is provided. The combustor may include an axial fuel injection system, and a radial fuel injection system aft of the axial fuel injection system. The axial fuel injection system includes a mixer having a bluff body at an exit port of the mixer, and a fuel injector disposed within the mixer. A fuel and air mixer is also provided and comprises an outer housing with an exit port and a bluff body. The bluff body extends across the exit port of the outer housing. A fuel injection system is also provided. The systems comprise a mixer having a bluff body at an exit port of the mixer and a fuel injector disposed within the mixer.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: October 24, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Albert K. Cheung, James B. Hoke, Randal G. McKinney
  • Publication number: 20170254538
    Abstract: A combustor of a gas turbine engine including a combustor shell having an interior surface, a first panel mounted to the interior surface at a first position and a second panel mounted to the interior surface at a second position. The first panel has a first end, a first combustion chamber surface parallel with the interior surface, a first rail extending from the first combustion chamber surface toward the interior surface of the combustor shell, and a first extension extending axially from the first rail to the end of the first panel. The second panel has a second end, a second combustion chamber surface, and a second rail extending from the second combustion chamber surface toward the interior surface of the combustor shell. The first end and the second end are proximal to each other and define a circumferentially extending gap there between.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 7, 2017
    Inventors: John S. Tu, James B. Hoke, David Kwoka, Jonathan Jeffery Eastwood
  • Publication number: 20170184306
    Abstract: A combustor of a gas turbine engine including a combustor shell having an interior surface defining a combustion chamber, a first panel mounted to the interior surface at a first position, the first panel having a first surface and a first rail extending from the first surface toward the combustor shell, the first rail configured at a first angle relative to the first surface, and a second panel mounted to the interior surface at a second position axially adjacent to the first panel, the second panel having a second surface and a second rail extending from the second surface toward the combustor shell, the second rail configured at a second angle relative to the second surface. The first and second rails are proximal to each other and define a circumferential gap there between and at least one of the first or second angles is an acute angle.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 29, 2017
    Inventors: John S. Tu, James B. Hoke, Jonathan Jeffery Eastwood, Kevin Joseph Low, Sean D. Bradshaw
  • Patent number: 9650903
    Abstract: A turbine vane downstream of a combustor section includes an arcuate outer vane platform defined about an axis, the arcuate outer vane platform includes a segment of the arcuate outer vane platform along the axis which follows an outer combustor liner panel structure and an arcuate inner vane platform defined about the axis, the arcuate inner vane platform includes a segment of the arcuate inner vane platform along the axis which follows an inner combustor liner panel structure.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: May 16, 2017
    Assignee: United Technologies Corporation
    Inventors: James B. Hoke, Philip J. Kirsopp