Blades and systems with forward blowing slots

Zuteck, Michael D.; Zalusky, Leigh; Lees, Paul

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Title: Blades and systems with forward blowing slots

Abstract

A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge. The pressure side and suction side provide lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side. The blade includes one or more openings at the suction side, in some cases between the leading edge and the trailing edge. The one or more openings are configured to provide a pressurized fluid towards the leading edge of the blade, in some cases at an angle between about 0° and 70° with respect to an axis oriented from a centerline of the blade toward the leading edge.

Inventors:: Zuteck, Michael D.; Zalusky, Leigh; Lees, Paul

Issue Date:: 2021-03-02

Research Org.:: Kohana Technologies, Inc., Richmond, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1805573

Patent Number(s):: 10934995

Application Number:: 16/037,466

Assignee:: Kohana Technologies Inc. (Richmond, CA)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05B - INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY

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F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
F03D1/0675 - {of the blades}
F03D7/022 - {Adjusting aerodynamic properties of the blades}

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05B - INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
F05B2240/30 - Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
F05B2250/502 - Outlet

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E10/72 - Wind turbines with rotation axis in wind direction

Show less

DOE Contract Number:: AR0000022

Resource Type:: Patent

Resource Relation:: Patent File Date: 07/17/2018

Country of Publication:: United States

Language:: English

Citation Formats


                    Zuteck, Michael D., Zalusky, Leigh, and Lees, Paul. Blades and systems with forward blowing slots.  United States: N. p., 2021. 
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                    Zuteck, Michael D., Zalusky, Leigh, & Lees, Paul. Blades and systems with forward blowing slots.  United States.

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                    Zuteck, Michael D., Zalusky, Leigh, and Lees, Paul. Tue .  
        "Blades and systems with forward blowing slots".  United States.  https://www.osti.gov/servlets/purl/1805573.

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@article{osti_1805573,

  title        = {Blades and systems with forward blowing slots},

  author       = {Zuteck, Michael D. and Zalusky, Leigh and Lees, Paul},

  abstractNote = {A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge. The pressure side and suction side provide lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side. The blade includes one or more openings at the suction side, in some cases between the leading edge and the trailing edge. The one or more openings are configured to provide a pressurized fluid towards the leading edge of the blade, in some cases at an angle between about 0° and 70° with respect to an axis oriented from a centerline of the blade toward the leading edge.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2021},

  month        = {3}

}

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Turbine blades and systems with forward blowing slots

Patent Zuteck, Michael D.; Zalusky, Leigh; Lees, Paul

A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge. The pressure side and suction side provide lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side. The blade includes one or more openings at the suction side, in some cases between the leading edge and the trailing edge. The one or more openings are configured to provide a pressurized fluid towards the leading edge of the blade, in some casesmore » « less
Full Text Available
Turbine blades and systems with forward blowing slots

Patent Zuteck, Michael D.; Zalusky, Leigh; Lees, Paul

A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge. The pressure side and suction side provide lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side. The blade includes one or more openings at the suction side, in some cases between the leading edge and the trailing edge. The one or more openings are configured to provide a pressurized fluid towards the leading edge of the blade, in some casesmore » « less
Full Text Available
Magnetic refrigeration system with unequal blows

Patent Boeder, Andre Michael; Chell, Jeremy Jonathan; Jacobs, Steven Alan; ...

A magnetic refrigeration apparatus includes beds of magnetocaloric material with a hot side and a cold side. The apparatus also includes a magnet to apply a magnetic field to the beds, a heat transfer fluid, a pump to circulate the heat transfer fluid, a hot side heat exchanger, a cold side heat exchanger, and a controller to control the flow of heat transfer fluid from the cold side to the hot side of the beds when the magnetic field on the beds is high at an average flow rate of ΦH for a duration ΔtH. The controller also controls themore » « less
Full Text Available
High slot utilization systems for electric machines

Patent Hsu, John S [Oak Ridge, TN]

Two new High Slot Utilization (HSU) Systems for electric machines enable the use of form wound coils that have the highest fill factor and the best use of magnetic materials. The epoxy/resin/curing treatment ensures the mechanical strength of the assembly of teeth, core, and coils. In addition, the first HSU system allows the coil layers to be moved inside the slots for the assembly purpose. The second system uses the slided-in teeth instead of the plugged-in teeth. The power density of the electric machine that uses either system can reach its highest limit.
Full Text Available
Internal cooling system with converging-diverging exit slots in trailing edge cooling channel for an airfoil in a turbine engine

Patent Lee, Ching-Pang; Myers, Caleb; Johnson, Erik; ...

An airfoil (10) is disclosed for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more converging-diverging exit slots (20) configured to increase the effectiveness of the cooling system (14) at the trailing edge (34) of the airfoil (10) by increasing the contact of cooling fluids with internal surfaces (24, 30) of the pressure and suction sides (36, 38) of the airfoil (10). In at least one embodiment, the trailing edge cooling channel (18) may include one or more converging-diverging exit slots (20) to further pressurize the trailing edge cooling channelmore » « less
Full Text Available

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Title: Blades and systems with forward blowing slots

Abstract

Citation Formats

Aircraft patent, July 1963

Vehicular boundary layer control system and method patent, May 2000

Turbine blade trailing edge cooling openings and slots patent, January 2001

Turbine blades and systems with forward blowing slots patent, July 2018

Apparatus and methods for turbine blade cooling patent, January 2001

Centrifugal air flow control patent, March 2001

Wind Turbine Blade with Variable Aerodynamic Profile patent-application, March 2009

Jet spoiler arrangement for wind turbine patent, March 1985

Helicopter rotor blade control patent, January 1989

Ceramic matrix composite airfoil trailing edge arrangement patent, June 2006

Method and device for altering the separation characteristics of air-flow over an aerodynamic surface via intermittent suction patent, March 2005

Wind turbine blade joint assembly and method of making wind turbine blades patent, October 1984

Flatback Insert for Turbine Blades patent-application, June 2010

Pin and roller attachment system for ceramic blades patent, July 1995

System and Method of Assembling an Air Distribution System for Use in a Rotor Blade of a Wind Turbine patent-application, May 2011

System and method for converting wind into mechanical energy patent, April 2007

Turbine Blades and Systems with Forward Blowing Slots patent-application, January 2013

Circulation control aerofoils patent, June 1996

Apparatus and method for aerodynamic blowing control using smart materials patent, November 2000

Wind Turbine Blades with Controlled Active Flow and Vortex Elements patent-application, June 2011

Fluid flow control devices patent, May 1998

Oscillating air jets for reducing HSI noise patent, May 2001

Refractory component with ceramic matrix composite skeleton patent, August 2010

Wind-turbine wing with a pneumatically actuated spoiler patent, April 1992

System and method for converting wind into mechanical energy patent, June 2005

Wind Turbine with Boundary Layer Control patent-application, October 2010

Method of using an active flow control system for lift enhancement or destruction in a wind turbine blade patent, October 2015

Circulation controlled airfoil patent, May 2010

Turbine blades and systems with forward blowing slots patent, September 2015

Wind Turbine & Wind Turbine Blade patent-application, May 2010

Blade for a Rotor of a Wind Turbine Provided with Barrier Generating Means patent-application, August 2010

Interlocked CMC Airfoil patent-application, December 2010

Louvered horizontal wind turbine patent, January 2008

System and Method of Operating an Active Flow Control System to Manipulate a Boundary Layer Across a Rotor Blade of a Wind Turbine patent-application, August 2011

Active flow control system for wind turbine patent, February 2011

Wind Turbine and Rotor Blade with Reduced Load Fluctuations patent-application, January 2011

Striated cooling hole patent, July 2001

Blade for a Wind Turbine Rotor patent-application, November 2009

Active Curcilation Control of Aerodynamic Structures patent-application, April 2010

Element for generating a fluid dynamic force patent, November 2010

Foil formed structure for turbine airfoil trailing edge patent, April 2003

Turbine airfoil for gas turbine engine patent, August 2003

Cooled rotor blade patent, February 2010

Airfoil having multi-passage baffle patent, May 1993

Streamlined bodies with counter-flow fluid injection patent, January 2002

Propellers patent, August 1970

Air driven propeller patent, April 1980

Turbine airfoil for gas turbine engine patent, April 2003

Turbine Energy Generating System patent-application, August 2010

Active Flow Control System for Wind Turbine patent-application, June 2010

Mono-element combined supercritical high lift airfoil patent, June 1983

Active flow modifications on wind turbine blades patent, June 2008

Apparatus and method for aerodynamic blowing control using smart materials patent, August 1998

Active flow control for wind turbine blades patent-application, October 2007

Shell Structure of Wind Turbine Blade Having Regions of Low Shear Modulus patent-application, November 2010

Methods and apparatus for cooling turbine blade trailing edges patent, June 2008

Rotary Wing Aircraft patent, March 1949

Fluid-driven turbine with speed regulation patent, February 1982

System and method for converting wind into mechanical energy for a building and the like patent, February 2010

Channel-wing system for thrust deflection and force/moment generation patent, September 2006

Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same patent, March 2008

Pneumatic valve control for circulation control aircraft patent, March 1985

Power loss reduction in turbulent wind for a wind turbine using localized sensing and control patent, March 2011

Turbine energy generating system patent-application, August 2006

Active blowing system for rotorcraft vortex interaction noise reduction patent, September 1998

Wind turbine blade with deflectable flaps patent-application, January 2009

Turbine Blades and Systems with Forward Blowing Slots patent-application, April 2016

Methods and apparatus for deicing airfoils or rotor blades patent, May 2007

Advanced aerodynamic control system for a high output wind turbine patent, September 2005

Mono-element combined supercritical high lift airfoil patent, July 1984

Vertical axis wind turbines with blades for redirecting airflow patent-application, August 2009

Pneumatic aerodynamic force-augmentation, control and drag-reduction devices for racing cars and high-performance sports cars patent, January 1999

Helicopter Rotor patent, October 1967

Variable pitch propeller for use in conjunction with a vertical axis wind turbine patent, October 1993

Pneumatic aerodynamic control and drag-reduction system for ground vehicles patent, June 1999

Method and apparatus for using wind turbines to generate and supply uninterrupted power to locations remote from the power grid patent, August 2005

Consolidated member and method and preform for making patent, April 1994

Aircraft
patent, July 1963

Vehicular boundary layer control system and method
patent, May 2000

Turbine blade trailing edge cooling openings and slots
patent, January 2001

Turbine blades and systems with forward blowing slots
patent, July 2018

Apparatus and methods for turbine blade cooling
patent, January 2001

Centrifugal air flow control
patent, March 2001

Wind Turbine Blade with Variable Aerodynamic Profile
patent-application, March 2009

Jet spoiler arrangement for wind turbine
patent, March 1985

Helicopter rotor blade control
patent, January 1989

Ceramic matrix composite airfoil trailing edge arrangement
patent, June 2006

Method and device for altering the separation characteristics of air-flow over an aerodynamic surface via intermittent suction
patent, March 2005

Wind turbine blade joint assembly and method of making wind turbine blades
patent, October 1984

Flatback Insert for Turbine Blades
patent-application, June 2010

Pin and roller attachment system for ceramic blades
patent, July 1995

System and Method of Assembling an Air Distribution System for Use in a Rotor Blade of a Wind Turbine
patent-application, May 2011

System and method for converting wind into mechanical energy
patent, April 2007

Turbine Blades and Systems with Forward Blowing Slots
patent-application, January 2013

Circulation control aerofoils
patent, June 1996

Apparatus and method for aerodynamic blowing control using smart materials
patent, November 2000

Wind Turbine Blades with Controlled Active Flow and Vortex Elements
patent-application, June 2011

Fluid flow control devices
patent, May 1998

Oscillating air jets for reducing HSI noise
patent, May 2001

Refractory component with ceramic matrix composite skeleton
patent, August 2010

Wind-turbine wing with a pneumatically actuated spoiler
patent, April 1992

System and method for converting wind into mechanical energy
patent, June 2005

Wind Turbine with Boundary Layer Control
patent-application, October 2010

Method of using an active flow control system for lift enhancement or destruction in a wind turbine blade
patent, October 2015

Circulation controlled airfoil
patent, May 2010

Turbine blades and systems with forward blowing slots
patent, September 2015

Wind Turbine & Wind Turbine Blade
patent-application, May 2010

Blade for a Rotor of a Wind Turbine Provided with Barrier Generating Means
patent-application, August 2010

Interlocked CMC Airfoil
patent-application, December 2010

Louvered horizontal wind turbine
patent, January 2008

System and Method of Operating an Active Flow Control System to Manipulate a Boundary Layer Across a Rotor Blade of a Wind Turbine
patent-application, August 2011

Active flow control system for wind turbine
patent, February 2011

Wind Turbine and Rotor Blade with Reduced Load Fluctuations
patent-application, January 2011

Striated cooling hole
patent, July 2001

Blade for a Wind Turbine Rotor
patent-application, November 2009

Active Curcilation Control of Aerodynamic Structures
patent-application, April 2010

Element for generating a fluid dynamic force
patent, November 2010

Foil formed structure for turbine airfoil trailing edge
patent, April 2003

Turbine airfoil for gas turbine engine
patent, August 2003

Cooled rotor blade
patent, February 2010

Airfoil having multi-passage baffle
patent, May 1993

Streamlined bodies with counter-flow fluid injection
patent, January 2002

Propellers
patent, August 1970

Air driven propeller
patent, April 1980

Turbine airfoil for gas turbine engine
patent, April 2003

Turbine Energy Generating System
patent-application, August 2010

Active Flow Control System for Wind Turbine
patent-application, June 2010

Mono-element combined supercritical high lift airfoil
patent, June 1983

Active flow modifications on wind turbine blades
patent, June 2008

Apparatus and method for aerodynamic blowing control using smart materials
patent, August 1998

Active flow control for wind turbine blades
patent-application, October 2007

Shell Structure of Wind Turbine Blade Having Regions of Low Shear Modulus
patent-application, November 2010

Methods and apparatus for cooling turbine blade trailing edges
patent, June 2008

Rotary Wing Aircraft
patent, March 1949

Fluid-driven turbine with speed regulation
patent, February 1982

System and method for converting wind into mechanical energy for a building and the like
patent, February 2010

Channel-wing system for thrust deflection and force/moment generation
patent, September 2006

Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same
patent, March 2008

Pneumatic valve control for circulation control aircraft
patent, March 1985

Power loss reduction in turbulent wind for a wind turbine using localized sensing and control
patent, March 2011

Turbine energy generating system
patent-application, August 2006

Active blowing system for rotorcraft vortex interaction noise reduction
patent, September 1998

Wind turbine blade with deflectable flaps
patent-application, January 2009

Turbine Blades and Systems with Forward Blowing Slots
patent-application, April 2016

Methods and apparatus for deicing airfoils or rotor blades
patent, May 2007

Advanced aerodynamic control system for a high output wind turbine
patent, September 2005

Mono-element combined supercritical high lift airfoil
patent, July 1984

Vertical axis wind turbines with blades for redirecting airflow
patent-application, August 2009

Pneumatic aerodynamic force-augmentation, control and drag-reduction devices for racing cars and high-performance sports cars
patent, January 1999

Helicopter Rotor
patent, October 1967

Variable pitch propeller for use in conjunction with a vertical axis wind turbine
patent, October 1993

Pneumatic aerodynamic control and drag-reduction system for ground vehicles
patent, June 1999

Method and apparatus for using wind turbines to generate and supply uninterrupted power to locations remote from the power grid
patent, August 2005

Consolidated member and method and preform for making
patent, April 1994

Wind turbine rotor
patent, December 1985

Turbine airfoil for gas turbine engine
patent, April 2004

Blade for a rotor of a wind energy turbine
patent, April 2008