Patents by Inventor Brandon P. Williams

Brandon P. Williams 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: 10429071
    Abstract: A staged fuel injector comprises a pilot inner air swirler arranged along a centre axis of the injector, a pilot fuel swirler arranged radially outboard of the pilot inner air swirler, a main inner air swirler arranged radially outboard of the pilot fuel swirler and a main fuel swirler arranged radially outboard of the pilot fuel swirler. A fuel feed arm is arranged in fluid communication with the pilot fuel swirler and the main fuel swirler for delivering fuel to the pilot fuel swirler and the main fuel swirler and a heat protective casing enclosing the fuel feed arm, the pilot fuel swirler and the main fuel swirler.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 1, 2019
    Assignee: Rolls-Royce plc
    Inventor: Brandon P. Williams
  • Patent number: 10295187
    Abstract: A fuel nozzle for a gas turbine engine is disclosed which includes a nozzle body having a longitudinal axis, an elongated annular air passage defined within the nozzle body, and a plurality of circumferentially spaced apart axially extending swirl vanes disposed within the annular air passage, wherein each swirl vane has multiple joined leads and a variable thickness along the axial extent thereof.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 21, 2019
    Assignee: Rolls-Royce plc
    Inventors: Brandon P. Williams, Kevin E. Thompson, Robert R. Fogarty
  • Patent number: 10077714
    Abstract: A fuel injector for a lean direct injection fuel nozzle has a pilot air swirler which sits radially outboard of a pilot fuel swirler radially outer wall. The air swirler is bounded on its radially outer side by joined wall portions. One wall portion extends axially and another wall portion converges radially. On the radially inwardly facing surface, the wall portions meet to provide a continuing wall surface of the air swirler which transitions from axial extension to radial convergence over a smooth radius. The curvature of this surface broadly mirrors the radially outwardly facing profile of the pilot fuel swirler radially outer wall. The axially extending wall portion is extended axially to form a first part of a join interface. The radially converging portion is extended in a radial direction to provide a second part of the join interface.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: September 18, 2018
    Assignee: Rolls-Royce plc
    Inventors: Randall D. Siders, Peter J. Schnoebelen, Brandon P. Williams, Neal Thomson, Philip E. O. Buelow, David H. Bretz
  • Publication number: 20170284673
    Abstract: A staged fuel injector comprises a pilot inner air swirler arranged along a centre axis of the injector, a pilot fuel swirler arranged radially outboard of the pilot inner air swirler, a main inner air swirler arranged radially outboard of the pilot fuel swirler and a main fuel swirler arranged radially outboard of the pilot fuel swirler. A fuel feed arm is arranged in fluid communication with the pilot fuel swirler and the main fuel swirler for delivering fuel to the pilot fuel swirler and the main fuel swirler and a heat protective casing enclosing the fuel feed arm, the pilot fuel swirler and the main fuel swirler.
    Type: Application
    Filed: March 16, 2017
    Publication date: October 5, 2017
    Inventor: Brandon P. Williams
  • Publication number: 20170130652
    Abstract: A fuel injector for a lean direct injection fuel nozzle has a pilot air swirler which sits radially outboard of a pilot fuel swirler radially outer wall. The air swirler is bounded on its radially outer side by joined wall portions. One wall portion extends axially and another wall portion converges radially. On the radially inwardly facing surface, the wall portions meet to provide a continuing wall surface of the air swirler which transitions from axial extension to radial convergence over a smooth radius. The curvature of this surface broadly mirrors the radially outwardly facing profile of the pilot fuel swirler radially outer wall. The axially extending wall portion is extended axially to form a first part of a join interface. The radially converging portion is extended in a radial direction to provide a second part of the join interface.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 11, 2017
    Inventors: Randall D. Siders, Peter J. Schnoebelen, Brandon P. Williams, Neal Thomson, Philip E.O. Buelow, David H. Bretz
  • Patent number: 9617919
    Abstract: A valve includes a valve housing having a fluid inlet and a fluid outlet with a longitudinal axis defined through the valve housing. The valve also includes a toggle mechanism configured and adapted to cycle flow from the fluid inlet to the fluid outlet through a plurality of different flow rates in response to repeated impulses. The toggle mechanism is also configured to hold flow rate steady between impulses.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 11, 2017
    Assignee: Delavan Inc.
    Inventors: Brandon P. Williams, Neal A. Thomson
  • Publication number: 20170038072
    Abstract: A fuel nozzle for a gas turbine engine is disclosed which includes a nozzle body having a longitudinal axis, an elongated annular air passage defined within the nozzle body, and a plurality of circumferentially spaced apart axially extending swirl vanes disposed within the annular air passage, wherein each swirl vane has multiple joined leads and a variable thickness along the axial extent thereof.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 9, 2017
    Inventors: Brandon P. Williams, Kevin E. Thompson, Robert R. Fogarty
  • Publication number: 20160102614
    Abstract: A valve includes a valve housing having a fluid inlet and a fluid outlet with a longitudinal axis defined through the valve housing. The valve also includes a toggle mechanism configured and adapted to cycle flow from the fluid inlet to the fluid outlet through a plurality of different flow rates in response to repeated impulses. The toggle mechanism is also configured to hold flow rate steady between impulses.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 14, 2016
    Inventors: Brandon P. Williams, Neal A. Thomson
  • Patent number: 9239167
    Abstract: A fuel injector for a gas turbine engine includes a nozzle body defining a central axis and having a main fuel circuit. An air circuit is formed within the nozzle body inboard of the main fuel circuit. A primary pilot fuel circuit is formed within the nozzle body inboard of the air circuit. A secondary pilot fuel circuit is formed within the nozzle body inboard of the air circuit and outboard of the primary pilot fuel circuit.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: January 19, 2016
    Assignee: Rolls-Royce plc
    Inventors: Brandon P. Williams, Jeremy T. Rhyan
  • Patent number: 9217511
    Abstract: A valve includes a valve housing having a fluid inlet and a fluid outlet with a longitudinal axis defined through the valve housing. The valve also includes a toggle mechanism configured and adapted to cycle flow from the fluid inlet to the fluid outlet through a plurality of different flow rates in response to repeated impulses. The toggle mechanism is also configured to hold flow rate steady between impulses.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: December 22, 2015
    Assignee: Delavan Inc.
    Inventors: Brandon P. Williams, Neal A. Thomson
  • Publication number: 20140042347
    Abstract: A valve includes a valve housing having a fluid inlet and a fluid outlet with a longitudinal axis defined through the valve housing. The valve also includes a toggle mechanism configured and adapted to cycle flow from the fluid inlet to the fluid outlet through a plurality of different flow rates in response to repeated impulses. The toggle mechanism is also configured to hold flow rate steady between impulses.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 13, 2014
    Applicant: Delavan Inc
    Inventors: Brandon P. Williams, Neal A. Thomson
  • Publication number: 20140041390
    Abstract: A fuel injector for a gas turbine engine includes a nozzle body defining a central axis and having a main fuel circuit. An air circuit is formed within the nozzle body inboard of the main fuel circuit. A primary pilot fuel circuit is formed within the nozzle body inboard of the air circuit. A secondary pilot fuel circuit is formed within the nozzle body inboard of the air circuit and outboard of the primary pilot fuel circuit.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 13, 2014
    Applicant: Delavan Inc.
    Inventors: Brandon P. Williams, Jeremy T. Rhyan
  • Patent number: 8607571
    Abstract: A fuel injector for a gas turbine engine includes a nozzle body defining a central axis and having a main fuel circuit. An air circuit is formed within the nozzle body inboard of the main fuel circuit. A primary pilot fuel circuit is formed within the nozzle body inboard of the air circuit. A secondary pilot fuel circuit is formed within the nozzle body inboard of the air circuit and outboard of the primary pilot fuel circuit.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: December 17, 2013
    Assignee: Delavan Inc
    Inventors: Brandon P. Williams, Jeremy T. Rhyan
  • Patent number: 8291707
    Abstract: A multi-stage check valve includes a valve housing defining an internal valve chamber. A main valve member within the valve chamber of the valve housing has an internal valve chamber. In the first position thereof the main valve member blocks fuel below a predetermined main pressure from flowing through a main fuel path. In the second position thereof the main valve member is displaced to allow fuel above the predetermined main pressure to flow through the main fuel path. The multi-stage check valve also includes a pilot valve member within the valve chamber of the main valve member. In the first position thereof, the pilot valve member blocks fuel below a predetermined pilot pressure from flowing through a pilot fuel path. In the second position thereof, the pilot valve member is displaced to allow fuel above the predetermined pilot pressure to flow through the pilot fuel path.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: October 23, 2012
    Assignee: Delavan Inc
    Inventors: Brandon P. Williams, Nathan J. James
  • Publication number: 20120247119
    Abstract: A method of actively controlling pattern factor in a gas turbine engine includes the steps of issuing fuel into a combustion chamber of a gas turbine engine through one or more circumferentially disposed fuel injectors, determining an initial circumferential pattern factor in the combustion chamber, and adjusting fuel flow through one or more selected fuel injectors based on the initial circumferential pattern factor, to yield a modified circumferential pattern factor in the combustion chamber. The step of determining the circumferential pattern factor can include the steps of detecting a chemiluminescent signature within the combustor, correlating the chemiluminescent signature to an equivalence ratio, and computing the initial circumferential pattern factor based on the equivalence ratio.
    Type: Application
    Filed: May 22, 2012
    Publication date: October 4, 2012
    Applicant: DELAVAN INC
    Inventors: Brandon P. Williams, Jerry L. Goeke
  • Publication number: 20120227410
    Abstract: A method of actively controlling pattern factor in a gas turbine engine includes the steps of issuing fuel into a combustion chamber of a gas turbine engine through one or more circumferentially disposed fuel injectors, determining an initial circumferential pattern factor in the combustion chamber, and adjusting fuel flow through one or more selected fuel injectors based on the initial circumferential pattern factor, to yield a modified circumferential pattern factor in the combustion chamber. The step of determining the circumferential pattern factor can include the steps of detecting a chemiluminescent signature within the combustor, correlating the chemiluminescent signature to an equivalence ratio, and computing the initial circumferential pattern factor based on the equivalence ratio.
    Type: Application
    Filed: May 22, 2012
    Publication date: September 13, 2012
    Applicant: DELAVAN INC
    Inventors: Brandon P. Williams, Jerry L. Goeke
  • Patent number: 8200410
    Abstract: A method of actively controlling pattern factor in a gas turbine engine includes the steps of issuing fuel into a combustion chamber of a gas turbine engine through one or more circumferentially disposed fuel injectors, determining an initial circumferential pattern factor in the combustion chamber, and adjusting fuel flow through one or more selected fuel injectors based on the initial circumferential pattern factor, to yield a modified circumferential pattern factor in the combustion chamber. The step of determining the circumferential pattern factor can include the steps of detecting a chemiluminescent signature within the combustor, correlating the chemiluminescent signature to an equivalence ratio, and computing the initial circumferential pattern factor based on the equivalence ratio.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: June 12, 2012
    Assignee: Delavan Inc
    Inventors: Brandon P. Williams, Jerry L. Goeke
  • Patent number: 8156746
    Abstract: A lean direct injection fuel nozzle for a gas turbine is disclosed which includes a radially outer main fuel delivery system including a main inner air swirler defined in part by a main inner air passage having a radially inner wall with a diverging downstream surface, an intermediate air swirler radially inward of the main inner air swirler for providing a cooling air flow along the downstream surface of the radially inner wall of the main inner air passage, and a radially inner pilot fuel delivery system radially inward of the intermediate air swirler.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: April 17, 2012
    Assignee: Delavan Inc
    Inventors: Philip E. O. Buelow, Brandon P. Williams, David H. Bretz, Michael Spooner, Caroline Mohamed, Helen Gill
  • Patent number: 8141368
    Abstract: Methods of managing fuel temperatures in fuel injectors for gas turbine engines include cooling fuel circuits by initiating fuel flow therethrough using opened, closed, and semi-open control techniques. A fuel injector for a gas turbine engine includes a feed arm having a fuel inlet fitting for delivering fuel to at least one fuel conduit extending through the feed arm. A nozzle body depends from the feed arm and has at least one fuel circuit extending therethrough. The fuel circuit is configured and adapted to receive fuel from the feed arm and to issue fuel from an exit orifice of the nozzle body. Sensing means are provided adjacent to the at least one fuel circuit. The sensing means are configured and adapted to provide temperature feedback in order to control fuel flow in the at least one fuel circuit to maintain fuel temperature within a predetermined range.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: March 27, 2012
    Assignee: Delavan Inc
    Inventors: Jerry L. Goeke, Neal A. Thomson, Brandon P. Williams
  • Publication number: 20120047903
    Abstract: An injector includes a main nozzle body defining a central axis and having a main fuel circuit. A pilot nozzle body is mounted inboard of the main nozzle body. The pilot nozzle body includes a pilot air circuit on the central axis with fuel circuitry radially outboard of the pilot air circuit for delivering fuel to a fuel outlet in a downstream portion of the pilot nozzle body. The fuel circuitry includes a primary pilot fuel circuit configured and adapted to deliver fuel to the fuel outlet and a secondary pilot fuel circuit configured and adapted to deliver fuel to the same fuel outlet.
    Type: Application
    Filed: November 9, 2011
    Publication date: March 1, 2012
    Applicant: Delavan Inc.
    Inventors: Brandon P. Williams, Viraphand Cholvibul, David H. Bretz