Paul R Angel

US Patent:

6758045, Jul 6, 2004

Filed:

Aug 30, 2002

Appl. No.:

10/233356

Inventors:

Mina Dimov - Cincinnati OH
Paul R. Angel - Fairfield OH
Steven Marakovits - Mason OH
Daniel Dale Brown - Fairfield OH

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 314

US Classification:

60804, 60747, 60772

Abstract:

A method enables a gas turbine engine multi-domed combustor including an outer liner and an inner liner that define a combustion chamber therebetween to be assembled. The method comprises coupling a first dome including a heat shield that includes an annular endbody that extends a first distance axially from the heat shield to the combustor outer liner, and coupling a second dome including a heat shield that includes an annular endbody that extends a second distance axially from the heat shield to the first dome, such that the second dome is radially aligned with respect to the first dome, and wherein the second dome second distance is less than the first dome first distance.

US Patent:

56807660, Oct 28, 1997

Filed:

Jan 2, 1996

Appl. No.:

8/581818

Inventors:

Narendra D. Joshi - Cincinnati OH
Paul R. Angel - Fairfield OH
James M. Caldwell - Alexandria KY
Paul V. Heberling - Cincinnati OH
Anthony J. Dean - Scotia NY

Assignee:

General Electric Company - Cincinnati OH

International Classification:

F02C 100

US Classification:

60746

Abstract:

An air fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct in which a fuel manifold is provided in flow communication with a fuel supply and control means, a set of inner and outer counter-rotating swirlers adjacent the upstream end of the mixing duct for imparting swirl to an air stream, a hub separating the inner and outer annular swirlers to allow independent rotation of the air stream, and a centerbody located axially along and substantially the full length of the mixing duct. In order to inject one type of fuel into the mixing duct, fuel is supplied to the outer annular swirlers which include hollow vanes with internal cavities, wherein the internal cavities of the outer swirler vanes are in fluid communication with the fuel manifold in the shroud. The outer swirler vanes further include a plurality of fuel passages therethrough in flow communication with the internal cavities. A second fuel can be injected into the mixing duct by means of a plurality of orifices in the centerbody wall which are in flow communication with a fuel supply and control means.

US Patent:

61419672, Nov 7, 2000

Filed:

Jan 9, 1998

Appl. No.:

9/005343

Inventors:

Paul R. Angel - Fairfield OH
James M. Caldwell - Alexandria KY
Narendra D. Joshi - Cincinnati OH
Steven Marakovits - Mason OH
Kelley A. Foresman - Cincinnati OH
Steven G. Goebel - Clifton Park NY
Richard E. Warren - Schenectady NY

Assignee:

General Electric Company - Cincinnati OH

International Classification:

F02C 100
F23R 314

US Classification:

60737

Abstract:

An apparatus for premixing fuel and air prior to combustion in a gas turbine engine, including: a linear mixing duct having a circular cross-section defined by a wall; a centerbody located along a central axis of the mixing duct and extending substantially the full length of the mixing duct, the centerbody having a plurality of orifices therein to inject fuel into the mixing duct with an axial velocity component; a fuel supply in flow communication with the centerbody orifices; an outer annular swirler located adjacent an upstream end of the mixing duct and including a plurality of circumferentially spaced vanes oriented so as to swirl air flowing therethrough in a first direction; an inner annular swirler located adjacent the mixing duct upstream end and including a plurality of circumferentially spaced vanes, the vanes having an outer radial portion having a leading edge and a trailing edge oriented so as to swirl air flowing therethrough in a second direction opposite the first swirl direction by the outer annular swirler vanes and an inner radial portion with a leading edge and a trailing edge oriented so as to provide a boundary layer of air substantially along the centerbody; and, a hub separating the inner and outer annular swirlers to permit independent rotation of an air stream therethrough. The outer annular swirler may also include vanes having an inner radial portion with a leading edge and a trailing edge oriented so as to swirl the air flow therethrough and an outer radial portion having a leading edge and a trailing edge oriented so as to provide a boundary layer of air substantially along the mixing duct wall. High pressure air is injected from a compressor into the mixing duct through the inner and outer annular swirlers and fuel is injected into the mixing duct so that the high pressure air and the fuel is uniformly mixed therein, whereby minimal formation of pollutants is produced when the fuel/air mixture is exhausted out the downstream end of the mixing duct into a combustor and ignited.

US Patent:

57786763, Jul 14, 1998

Filed:

Jan 2, 1996

Appl. No.:

8/581817

Inventors:

Narendra D. Joshi - Cincinnati OH
Paul R. Angel - Fairfield OH
James M. Caldwell - Alexandria KY
Paul V. Heberling - Alexandria KY
Anthony J. Dean - Scotia NY

Assignee:

General Electric Company - Cincinnati OH

International Classification:

F02C 100
F02G 300

US Classification:

60746

Abstract:

An air fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct in which a fuel manifold is provided in flow communication with a fuel supply and control means, a set of inner and outer counter-rotating swirlers adjacent the upstream end of the mixing duct for imparting swirl to an air stream, a hub separating the inner and outer annular swirlers to allow independent rotation of the air stream, and a centerbody located axially along and substantially the full length of the mixing duct. In order to inject one type of fuel into the mixing duct, fuel is supplied to the outer annular swirlers which include hollow vanes with internal cavities, wherein the internal cavities of the outer swirler vanes are in fluid communication with the fuel manifold in the shroud. The outer swirler vanes further include a plurality of fuel passages therethrough in flow communication with the internal cavities. A second fuel can be injected into the mixing duct by means of a plurality of orifices in the centerbody wall which are in flow communication with a fuel supply and control means.

US Patent:

56759711, Oct 14, 1997

Filed:

Jan 2, 1996

Appl. No.:

8/581813

Inventors:

Paul R. Angel - Fairfield OH
James M. Caldwell - Alexandria KY
Paul V. Heberling - Cincinnati OH
Anthony J. Dean - Scotia NY
Narendra D. Joshi - Cincinnati OH

Assignee:

General Electric Company - Cincinnati OH

International Classification:

F02C 100
F02G 300

US Classification:

60746

Abstract:

An air fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct in which a fuel manifold is provided in flow communication with a fuel supply and control means, a set of inner and outer counter-rotating swirlers adjacent the upstream end of the mixing duct for imparting swirl to an air stream, a hub separating the inner and outer annular swirlers to allow independent rotation of the air stream, and a centerbody located axially along and substantially the full length of the mixing duct. In order to inject one type of fuel into the mixing duct, fuel is supplied to the outer annular swirlers which include hollow vanes with internal cavities, wherein the internal cavities of the outer swirler vanes are in fluid communication with the fuel manifold in the shroud. The outer swirler vanes further include a plurality of fuel passages therethrough in flow communication with the internal cavities. A second fuel can be injected into the mixing duct by means of a plurality of orifices in the centerbody wall which are in flow communication with a fuel supply and control means.

US Patent:

20170191750, Jul 6, 2017

Filed:

Dec 28, 2016

Appl. No.:

15/392914

Inventors:

- Schenectady NY, US
Michael Ralph Storage - Beavercreek OH, US
Paul Richmond - Amelia OH, US
Paul R. Angel - Fairfield OH, US
David Stanley - Plymouth MA, US

International Classification:

F25J 1/02
F02C 3/06
F02C 7/143
F25J 1/00

Abstract:

A method includes compressing an air flow to a first pressure, transferring heat from the air flow to a liquefaction fluid via an intercooler heat exchanger, compressing the air flow to a second pressure greater than the first pressure, combusting the air flow and a fuel to generate a combustion product flow, and driving a turbine with the combustion product flow. The turbine is configured to drive machinery of a liquefaction system. The liquefaction fluid includes at least one of a pre-cooling fluid, a refrigerant, and a liquefied product of the liquefaction system.