Turbine exhaust diffuser with a gas jet producing a coanda effect flow control

Orosa, John; Montgomery, Matthew

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
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Title: Turbine exhaust diffuser with a gas jet producing a coanda effect flow control

Abstract

An exhaust diffuser system and method for a turbine engine includes an inner boundary and an outer boundary with a flow path defined therebetween. The inner boundary is defined at least in part by a hub structure that has an upstream end and a downstream end. The outer boundary may include a region in which the outer boundary extends radially inward toward the hub structure and may direct at least a portion of an exhaust flow in the diffuser toward the hub structure. The hub structure includes at least one jet exit located on the hub structure adjacent to the upstream end of the tail cone. The jet exit discharges a flow of gas substantially tangential to an outer surface of the tail cone to produce a Coanda effect and direct a portion of the exhaust flow in the diffuser toward the inner boundary.

Inventors:: Orosa, John; Montgomery, Matthew

Issue Date:: Tue Feb 11 00:00:00 EST 2014

Research Org.:: Siemens Energy, Inc., Orlando, FL, USA

Sponsoring Org.:: USDOE

OSTI Identifier:: 1124610

Patent Number(s):: 8647057

Application Number:: 12/944,177

Assignee:: Siemens Energy, Inc. (Orlando, FL)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D25/305 - {with fluid, e.g. liquid injection}

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DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Orosa, John, and Montgomery, Matthew. Turbine exhaust diffuser with a gas jet producing a coanda effect flow control.  United States: N. p., 2014. 
        Web.

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                    Orosa, John, & Montgomery, Matthew. Turbine exhaust diffuser with a gas jet producing a coanda effect flow control.  United States.

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                    Orosa, John, and Montgomery, Matthew. Tue .  
        "Turbine exhaust diffuser with a gas jet producing a coanda effect flow control".  United States.  https://www.osti.gov/servlets/purl/1124610.

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@article{osti_1124610,

  title        = {Turbine exhaust diffuser with a gas jet producing a coanda effect flow control},

  author       = {Orosa, John and Montgomery, Matthew},

  abstractNote = {An exhaust diffuser system and method for a turbine engine includes an inner boundary and an outer boundary with a flow path defined therebetween. The inner boundary is defined at least in part by a hub structure that has an upstream end and a downstream end. The outer boundary may include a region in which the outer boundary extends radially inward toward the hub structure and may direct at least a portion of an exhaust flow in the diffuser toward the hub structure. The hub structure includes at least one jet exit located on the hub structure adjacent to the upstream end of the tail cone. The jet exit discharges a flow of gas substantially tangential to an outer surface of the tail cone to produce a Coanda effect and direct a portion of the exhaust flow in the diffuser toward the inner boundary.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Feb 11 00:00:00 EST 2014},

  month        = {Tue Feb 11 00:00:00 EST 2014}

}

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Works referenced in this record:

Gas Turbine Power Plant with Diverse Combustion and Diluent Air Paths
patent, January 1953

Williams, Robert M.; Lawter, Curtis N.
US Patent Document 2625794
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2625794

Short subsonic diffuser for large pressure ratios
patent, June 1977

Fonda-Bonardi, Giusto
US Patent Document 4,029,430
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4029430

Draft tube for hydraulic turbine
patent, May 1985

Fisher, Jr., Richard K.
US Patent Document 4,515,524
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4515524

Gas turbine exhaust diffuser
patent, October 1995

Poux, Jacques; Gandia, Liberto; Rouget, Frederic
US Patent Document 5,462,088
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5462088

Gas turbine engine and a diffuser therefor
patent, October 1996

Richards, Stephen J.; Simmonds, Gabriel; Hatfield, John E.
US Patent Document 5,564,898
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5564898

Diffuser
patent, February 1997

Fonda-Bonardi, G.
US Patent Document 5,603,605
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5603605

Recoup turbojet engine
patent, July 1998

Lamando, Jr., Chester J.; Oliver, Wayne R.
US Patent Document 5,778,658
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5778658

Tangentially directed acoustic jet controlling boundary layer
patent, May 2002

McCormick, Duane C.; Gysling, Daniel L.
US Patent Document 6,390,418
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6390418

Annular flow diffusers for gas turbines
patent, December 2002

Owczarek, Jerzy A.
US Patent Document 6,488,470
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6488470

Axial-flow turbine having stepped portion formed in axial-flow turbine passage
patent, May 2004

Hiyama, Takashi; Ito, Eisaku
US Patent Document 6,733,238
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6733238

Fluidic actuation for improved diffuser performance
patent, May 2005

Graziosi, Paolo; Warren, Jr., Richard Edwin; Fric, Thomas Frank
US Patent Document 6,896,475
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6896475

Exhaust diffuser assembly with tunable velocity profile
patent, September 2007

Wiebe, David J.; Berrong, Eric C.
US Patent Document 7,272,930
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7272930

Gas turbine installation, cooling air supplying method and method of modifying a gas turbine installation
patent, May 2008

Noda, Masami
US Patent Document 7,373,773
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7373773

Multi-slot inter-turbine duct assembly for use in a turbine engine
patent, June 2009

Widenhoefer, James Fredric; Graziosi, Paolo; Kirtley, Kevin Richard
US Patent Document 7,549,282
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7549282

Coupled parametric design of flow control and duct shape
patent, October 2009

Florea, Razvan Virgil; Bertuccioli, Luca
US Patent Document 7,610,179
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7610179

Diffuser for terrestrial or aviation gas turbine
patent-application, July 2003

Nottin, Claude
US Patent Application 10/347446; 20030136102
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20030136102

Gas turbine installation, cooling air supplying method and method of modifying a gas turbine installation
patent-application, March 2005

Noda, Masami
US Patent Application 10/916396; 20050050898
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050050898

Exhaust diffuser assembly with tunable velocity profile
patent-application, March 2005

Wiebe, David James; Berrong, Eric Christopher
US Patent Application 10/671290; 20050066647
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050066647

Augmentor with Trapped Vortex Cavity Pilot
patent-application, March 2009

Woltman, Ivan Elmer; Archer, Sean Stacey; Bachman, Frank Gerald
US Patent Application 11/848587; 20090056340
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090056340

Combustion Turbine Including a Diffuser Section with Cooling Fluid Passageways and Associated Methods
patent-application, October 2009

Little, David A.; Paprotna, Hubertus E.; Light, Kevin M.
US Patent Application 12/106375; 20090263243
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090263243

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Similar Records

Title: Turbine exhaust diffuser with a gas jet producing a coanda effect flow control

Abstract

Citation Formats

Gas Turbine Power Plant with Diverse Combustion and Diluent Air Paths patent, January 1953

Short subsonic diffuser for large pressure ratios patent, June 1977

Draft tube for hydraulic turbine patent, May 1985

Gas turbine exhaust diffuser patent, October 1995

Gas turbine engine and a diffuser therefor patent, October 1996

Diffuser patent, February 1997

Recoup turbojet engine patent, July 1998

Tangentially directed acoustic jet controlling boundary layer patent, May 2002

Annular flow diffusers for gas turbines patent, December 2002

Axial-flow turbine having stepped portion formed in axial-flow turbine passage patent, May 2004

Fluidic actuation for improved diffuser performance patent, May 2005

Exhaust diffuser assembly with tunable velocity profile patent, September 2007

Gas turbine installation, cooling air supplying method and method of modifying a gas turbine installation patent, May 2008

Multi-slot inter-turbine duct assembly for use in a turbine engine patent, June 2009

Coupled parametric design of flow control and duct shape patent, October 2009

Diffuser for terrestrial or aviation gas turbine patent-application, July 2003

Gas turbine installation, cooling air supplying method and method of modifying a gas turbine installation patent-application, March 2005

Exhaust diffuser assembly with tunable velocity profile patent-application, March 2005

Augmentor with Trapped Vortex Cavity Pilot patent-application, March 2009

Combustion Turbine Including a Diffuser Section with Cooling Fluid Passageways and Associated Methods patent-application, October 2009

Gas Turbine Power Plant with Diverse Combustion and Diluent Air Paths
patent, January 1953

Short subsonic diffuser for large pressure ratios
patent, June 1977

Draft tube for hydraulic turbine
patent, May 1985

Gas turbine exhaust diffuser
patent, October 1995

Gas turbine engine and a diffuser therefor
patent, October 1996

Diffuser
patent, February 1997

Recoup turbojet engine
patent, July 1998

Tangentially directed acoustic jet controlling boundary layer
patent, May 2002

Annular flow diffusers for gas turbines
patent, December 2002

Axial-flow turbine having stepped portion formed in axial-flow turbine passage
patent, May 2004

Fluidic actuation for improved diffuser performance
patent, May 2005

Exhaust diffuser assembly with tunable velocity profile
patent, September 2007

Gas turbine installation, cooling air supplying method and method of modifying a gas turbine installation
patent, May 2008

Multi-slot inter-turbine duct assembly for use in a turbine engine
patent, June 2009

Coupled parametric design of flow control and duct shape
patent, October 2009

Diffuser for terrestrial or aviation gas turbine
patent-application, July 2003

Gas turbine installation, cooling air supplying method and method of modifying a gas turbine installation
patent-application, March 2005

Exhaust diffuser assembly with tunable velocity profile
patent-application, March 2005

Augmentor with Trapped Vortex Cavity Pilot
patent-application, March 2009

Combustion Turbine Including a Diffuser Section with Cooling Fluid Passageways and Associated Methods
patent-application, October 2009