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Steven Lohmueller Phones & Addresses

  • 1309 3Rd St, Cincinnati, OH 45215 (513) 554-1923
  • Reading, OH
  • Columbus, OH
  • 1608 Sanborn Dr, Cincinnati, OH 45215

Work

Position: Clerical/White Collar

Education

Degree: High school graduate or higher

Emails

Publications

Us Patents

Method And Apparatus To Decrease Combustor Emissions

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US Patent:
6865889, Mar 15, 2005
Filed:
Feb 1, 2002
Appl. No.:
10/061148
Inventors:
Alfred A. Mancini - Cincinnati OH,
Michael L. Vermeersch - Hamilton OH,
Duane D. Thomsen - Loveland OH,
Allen M. Danis - Mason OH,
James N. Cooper - Hamilton OH,
Steven J. Lohmueller - Reading OH,
Hukam C. Mongia - Westchester OH,
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C007/00
US Classification:
60737, 60746, 60748
Abstract:
A method for operating a gas turbine engine facilitates reducing an amount of emissions from a combustor. The combustor includes a mixer assembly including a pilot mixer, a main mixer, and a centerbody that extends therebetween. The pilot mixer includes a pilot fuel nozzle and a plurality of axial swirlers. The main mixer includes a main swirler and a plurality of fuel injection ports. The method comprises injecting fuel into the combustor through the pilot mixer, such that the fuel is discharged downstream from the pilot mixer axial swirlers, and directing flow exiting the pilot mixer with a lip extending from the centerbody into a pilot flame zone downstream from said pilot mixer.

Differential Pressure Induced Purging Fuel Injectors

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US Patent:
6959535, Nov 1, 2005
Filed:
Jan 31, 2003
Appl. No.:
10/356237
Inventors:
Alfred Albert Mancini - Cincinnati OH,
Steven Joseph Lohmueller - Reading OH,
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C007/22
US Classification:
60 39094, 60740, 60742, 60748
Abstract:
A fuel injector includes an annular main fuel nozzle received within an annular nozzle housing, a main nozzle fuel circuit having at least one annular leg, and a pilot nozzle fuel circuit. Spray orifices of the leg extend through the fuel nozzle and spray wells through the housing are aligned with the orifices. The nozzle is designed to generate sufficient static pressure differentials between at least two different ones of the spray wells to purge the main nozzle fuel circuit. Spray well portions may be asymmetrically flared out with respect to a spray well centerline in different local streamwise directions. Some of the spray well portions may be asymmetrically flared out in a local upstream direction and others in a local downstream direction. The local streamwise direction may have an axial component parallel to a nozzle axis about which the annular nozzle housing is circumscribed and a circumferential component around the nozzle housing.

Method And Apparatus To Decrease Combustor Emissions

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US Patent:
7010923, Mar 14, 2006
Filed:
Aug 30, 2004
Appl. No.:
10/929805
Inventors:
Alfred A. Mancini - Cincinnati OH,
Michael L. Vermeersch - Hamilton OH,
Duane D. Thomsen - Loveland OH,
Allen M. Danis - Mason OH,
James N. Cooper - Hamilton OH,
Steven J. Lohmueller - Reading OH,
Hukam C. Mongia - Westchester OH,
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C 7/00
US Classification:
60776
Abstract:
A method for operating a gas turbine engine facilitates reducing an amount of emissions from a combustor. The combustor includes a mixer assembly including a pilot mixer, a main mixer, and a centerbody that extends therebetween. The pilot mixer includes a pilot fuel nozzle and a plurality of axial swirlers. The main mixer includes a main swirler and a plurality of fuel injection ports. The method comprises injecting fuel into the combustor through the pilot mixer, such that the fuel is discharged downstream from the pilot mixer axial swirlers, and directing flow exiting the pilot mixer with a lip extending from the centerbody into a pilot flame zone downstream from said pilot mixer.

Methods And Apparatuses For Assembling A Gas Turbine Engine

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US Patent:
7493771, Feb 24, 2009
Filed:
Nov 30, 2005
Appl. No.:
11/289965
Inventors:
Steven Joseph Lohmueller - Reading OH,
Robert P. Czachor - Cincinnati OH,
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C 7/20
US Classification:
60796, 60799, 415136
Abstract:
A method for assembling a gas turbine engine includes coupling an axisymmetric structure within the gas turbine engine, wherein the axisymmetric structure includes at least one mounting bushing extending from a radially outer surface of the axisymmetric structure, and inserting a pin having a crowned surface at least partially into the mounting bushing such that the pin provides both axial and tangential support to the axisymmetric structure, and securing the pin to the gas turbine engine utilizing a retaining assembly.

Method And Apparatus For Assembling Gas Turbine Engine

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US Patent:
7716931, May 18, 2010
Filed:
Mar 1, 2006
Appl. No.:
11/364914
Inventors:
Alfred A. Mancini - Cincinnati OH,
David L. Burrus - Cincinnati OH,
Steven J. Lohmueller - Reading OH,
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C 1/00
US Classification:
60748, 60737, 60752
Abstract:
A method for assembling a gas turbine engine is provided. The method includes providing a combustor having a combustor liner assembly defining a combustion chamber. An outer combustor liner includes a radially extending first end that defines a combustion chamber input opening. An axially extending second end of the outer combustor liner defines a combustion chamber output opening. The first end transitions into the second end to form an arcuate cross-sectional shape of the outer combustor liner. A dome assembly is coupled to the first end of the combustor liner that extends downstream from the dome assembly. A fuel nozzle is positioned within a cyclone formed on the dome assembly and configured in a radial configuration.

Gas Turbine Engine Combustor And Method For Delivering Purge Gas Into A Combustion Chamber Of The Combustor

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US Patent:
8459042, Jun 11, 2013
Filed:
Jan 19, 2012
Appl. No.:
13/353414
Inventors:
Steven Joseph Lohmueller - Reading OH,
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C 7/20
US Classification:
60800, 60796, 60754
Abstract:
In a gas turbine engine combustor and method for delivering purge gas thereto, a ferrule is generally coupled to the housing and moveable relative thereto. The ferrule has a primary opening through which a combustor component extends into a combustion chamber of the combustor. The ferrule further has a plurality of purge gas openings separate from and in transversely spaced relationship with the primary opening to allow purge gas to flow through the ferrule. In a first position of the ferrule at least one purge gas opening is blocked against the flow of purge gas therethrough and at least one other purge gas opening is unblocked against purge gas flow. In a second position of the ferrule at least one of the blocked purge gas openings of the first ferrule position is unblocked to permit the flow of purge gas therethrough.

Gas Turbine Engine Combustor And Method For Delivering Purge Gas Into A Combustion Chamber Of The Combustor

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US Patent:
8205457, Jun 26, 2012
Filed:
Dec 27, 2007
Appl. No.:
11/965397
Inventors:
Steven Joseph Lohmueller - Reading OH,
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C 7/20
US Classification:
60800, 60796, 60754
Abstract:
In a gas turbine engine combustor and method for delivering purge gas thereto, a ferrule is generally coupled to the housing and moveable relative thereto. The ferrule has a primary opening through which a combustor component extends into a combustion chamber of the combustor. The ferrule further has a plurality of purge gas openings separate from and in transversely spaced relationship with the primary opening to allow purge gas to flow through the ferrule. In a first position of the ferrule at least one purge gas opening is blocked against the flow of purge gas therethrough and at least one other purge gas opening is unblocked against purge gas flow. In a second position of the ferrule at least one of the blocked purge gas openings of the first ferrule position is unblocked to permit the flow of purge gas therethrough.

Method Of Assembling A Fuel Nozzle

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US Patent:
20090255120, Oct 15, 2009
Filed:
Mar 27, 2009
Appl. No.:
12/412523
Inventors:
Marie Ann McMasters - Mason OH,
Michael A. Benjamin - Cincinnati OH,
Alfred Mancini - Cincinnati OH,
Steven Joseph Lohmueller - Cincinnati OH,
International Classification:
B23P 15/04
B21D 39/03
US Classification:
298892, 29428
Abstract:
A method of assembling a fuel nozzle comprises the steps of forming a pilot assembly; coupling the pilot assembly to a unitary distributor such that the pilot assembly is in flow communication with a pilot flow passage in the unitary distributor; coupling a unitary swirler having an adaptor to the unitary distributor; coupling the adaptor to a stem housing; coupling the unitary distributor to the stem housing; and coupling a centerbody to the stem housing.
Steven J Lohmueller from Cincinnati, OH, age ~50 Get Report