End wall configuration for gas turbine engine

Lohaus, Andrew S.

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Title: End wall configuration for gas turbine engine

Abstract

A contoured turbine airfoil assembly including an end wall (30a) formed by platforms (30) located circumferentially adjacent to each other, and a row of airfoils (34a, 34b) integrally joined to the end wall (30a) and spaced laterally apart to define flow passages (46) therebetween for channeling gases in an axial direction. A trough (62) is defined between a pressure side ridge (48) and a suction side ridge (58) located forward of each pair of airfoils (34a, 34b). Each trough (62) has a direction of elongation aligned to direct flow into the flow passage (46) centrally between each pair of airfoils (34a, 34b).

Inventors:: Lohaus, Andrew S.

Issue Date:: 2019-09-17

Research Org.:: Siemens Energy, Inc., Orlando, FL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1576303

Patent Number(s):: 10415392

Application Number:: 15/307,087

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

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D5/14 - Form or construction
F01D5/141 - {Shape, i.e. outer, aerodynamic form
F01D5/143 - {Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour}
F01D5/147 - {Construction, i.e. structural features, e.g. of weight-saving hollow blades

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F05D2240/12 - Fluid guiding means, e.g. vanes
F05D2240/124 - related to the suction side of a stator vane
F05D2240/303 - related to the leading edge of a rotor blade
F05D2240/306 - related to the suction side of a rotor blade
F05D2240/80 - Platforms for stationary or moving blades

Show less

DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 Jun 18

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Lohaus, Andrew S. End wall configuration for gas turbine engine.  United States: N. p., 2019. 
        Web.

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                    Lohaus, Andrew S. End wall configuration for gas turbine engine.  United States.

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                    Lohaus, Andrew S. Tue .  
        "End wall configuration for gas turbine engine".  United States.  https://www.osti.gov/servlets/purl/1576303.

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@article{osti_1576303,

  title        = {End wall configuration for gas turbine engine},

  author       = {Lohaus, Andrew S.},

  abstractNote = {A contoured turbine airfoil assembly including an end wall (30a) formed by platforms (30) located circumferentially adjacent to each other, and a row of airfoils (34a, 34b) integrally joined to the end wall (30a) and spaced laterally apart to define flow passages (46) therebetween for channeling gases in an axial direction. A trough (62) is defined between a pressure side ridge (48) and a suction side ridge (58) located forward of each pair of airfoils (34a, 34b). Each trough (62) has a direction of elongation aligned to direct flow into the flow passage (46) centrally between each pair of airfoils (34a, 34b).},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {9}

}

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Works referenced in this record:

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patent, May 2013

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Similar Records

Title: End wall configuration for gas turbine engine

Abstract

Citation Formats

Biformal platform turbine blade patent, May 2013

Endwall shape for use in turbomachinery patent, December 2003

Crescentic ramp turbine stage patent, May 2007

Endwall Contouring patent-application, April 2014

Funnel fillet turbine stage patent, July 2007

Aerofoil members for a turbomachine patent, June 2012

Turbine nozzle having non-axisymmetric endwall contour (EWC) patent, June 2016

Turbine Nozzle Having Non-Axisymmetric Endwall Contour (EWC) patent-application, April 2015

Airfoil Having Built-Up Surface with Embedded Cooling Passage patent-application, September 2011

Bladed ducting for turbomachinery patent, September 2001

Airfoil array with an endwall depression and components of the array patent, August 2013

Flow directing device patent, November 2005

Scalloped surface turbine stage patent, November 2006

Turbine blade cascade end wall patent, May 2012

Endwall with leading-edge hump patent, January 2012

Wall configuration of axial-flow machine, and gas turbine engine patent, April 2010

Curved platform turbine blade patent, June 2013

Methods and apparatus relating to improved turbine blade platform contours patent, July 2012

Scalloped Surface Turbine Stage with Purge Trough patent-application, August 2013

Fluted compressor flowpath patent, May 2003

Fillet energized turbine stage patent, May 2007

Scalloped surface turbine stage with trailing edge ridges patent, June 2012

Airfoil array with an endwall protrusion and components of the array patent, February 2011

Gas turbine engine with non-axisymmetric surface contoured vane platform patent, January 2013

Biformal platform turbine blade
patent, May 2013

Endwall shape for use in turbomachinery
patent, December 2003

Crescentic ramp turbine stage
patent, May 2007

Endwall Contouring
patent-application, April 2014

Funnel fillet turbine stage
patent, July 2007

Aerofoil members for a turbomachine
patent, June 2012

Turbine nozzle having non-axisymmetric endwall contour (EWC)
patent, June 2016

Turbine Nozzle Having Non-Axisymmetric Endwall Contour (EWC)
patent-application, April 2015

Airfoil Having Built-Up Surface with Embedded Cooling Passage
patent-application, September 2011

Bladed ducting for turbomachinery
patent, September 2001

Airfoil array with an endwall depression and components of the array
patent, August 2013

Flow directing device
patent, November 2005

Scalloped surface turbine stage
patent, November 2006

Turbine blade cascade end wall
patent, May 2012

Endwall with leading-edge hump
patent, January 2012

Wall configuration of axial-flow machine, and gas turbine engine
patent, April 2010

Curved platform turbine blade
patent, June 2013

Methods and apparatus relating to improved turbine blade platform contours
patent, July 2012

Scalloped Surface Turbine Stage with Purge Trough
patent-application, August 2013

Fluted compressor flowpath
patent, May 2003

Fillet energized turbine stage
patent, May 2007

Scalloped surface turbine stage with trailing edge ridges
patent, June 2012

Airfoil array with an endwall protrusion and components of the array
patent, February 2011

Gas turbine engine with non-axisymmetric surface contoured vane platform
patent, January 2013