Patents for F03D 7 - Controlling wind motors (12,710)
07/1999
07/15/1999WO1999035395A1 Method for controlling the power of a rotary aero-generator and wind-driven rotary power-plant
07/15/1999CA2316893A1 Method for controlling the power of a rotary aero-generator and wind-driven rotary power-plant
07/01/1999WO1999033165A1 Wind turbine and method for operating a wind turbine
07/01/1999WO1999032789A1 Windmill blade with vibration damper
07/01/1999DE19756777A1 Verfahren zum Betreiben einer Windenergieanlage sowie Windenergieanlage A method for operating a wind turbine and wind turbine
06/1999
06/09/1999EP0921310A1 Improvements to eolian energy production systems
05/1999
05/25/1999US5907192 Method and system for wind turbine braking
05/14/1999WO1999023384A1 Drive mechanism for adjusting the rotor blades of wind power installations
04/1999
04/22/1999WO1999019208A1 Variable pitch marine propeller
04/22/1999CA2303922A1 Variable pitch marine propeller
04/14/1999EP0629165B1 Axyally compact ram air turbine
04/01/1999DE19741490A1 Flow profile with variable profile adaptation and rigid rib structure
03/1999
03/18/1999WO1999013219A1 Wind power plant with vertical axis of rotation
03/10/1999EP0900335A1 Yawing device and wind power plant comprising a yawing device
03/04/1999DE19739164A1 Wind power plant with rotor and rotor rotational located at horizontal axis of nacelle-tower
03/04/1999DE19739162A1 Wind power plant with tower and nacelle rotatable at vertical axis with rotor
03/04/1999DE19738278A1 Adaptive rotor for wind power plants
02/1999
02/24/1999CN1209087A Shaft phase control mechanism
02/18/1999WO1999007996A1 Variable speed wind turbine generator
02/04/1999WO1999005414A1 Wind energy installation
01/1999
01/28/1999DE19731918A1 Windenergieanlage Wind turbine
01/27/1999EP0892890A2 Apparatus for generating electric power using wind force
01/20/1999CN1205762A Wind turbine yaw system
12/1998
12/30/1998EP0569556B1 Variable speed wind turbine
12/16/1998EP0884833A1 Variable speed wind turbine
12/01/1998US5844323 Rotatable wheel for developing fluid kinetic energy by accepting action forces from multiple directions
11/1998
11/17/1998US5836800 Pinwheel
11/11/1998EP0530315B1 Free-yaw, free-pitch wind-driven electric generator apparatus
10/1998
10/28/1998CN1197502A Self-governing fluid energy turbine
10/22/1998DE19716645A1 Power transmission method used between fluctuating current generator and supply network
10/08/1998DE19713583A1 Machine remaining working life evaluation method
10/07/1998EP0869280A2 Apparatus for controlling orientation of a wind turbine
10/07/1998EP0868608A1 Wind turbine yaw system
10/01/1998WO1998042980A1 A wind turbine with a wind velocity measurement system
10/01/1998WO1998026177A3 Apparatus for generating electric power using wind force
09/1998
09/17/1998WO1998040627A1 Low speed direct driven wind turbine
09/16/1998EP0864748A1 Low speed gearless wind turbine
08/1998
08/25/1998US5798632 Variable speed wind turbine generator with zero-sequence filter
08/25/1998US5798631 Apparatus for maximizing output power
07/1998
07/23/1998WO1998031934A1 Rotor with multiplane blades and wind power engine comprising such rotors
07/09/1998DE19717059C1 Method for parking rotor blades of windmill when wind speed is high
06/1998
06/18/1998WO1998026177A2 Apparatus for generating electric power using wind force
06/17/1998EP0847496A1 Method of operating a wind power station
06/04/1998WO1998023474A1 A hydraulic braking system
06/04/1998CA2272489A1 A hydraulic braking system
05/1998
05/06/1998EP0840007A2 Self-Braking windmill
05/05/1998US5746576 Wind energy conversion device with angled governing mechanism
04/1998
04/30/1998WO1998017912A1 Hooded wind power engine
04/30/1998DE19644917A1 Wind power-to-electrical power converter with storm protection
04/30/1998DE19644705A1 Wind power generator station turbine rotor-blade setting device
03/1998
03/25/1998EP0830507A1 Self-governing fluid energy turbine
03/24/1998US5730581 Rotor blade
03/12/1998DE19635960A1 Wind power plant to mains connection
02/1998
02/26/1998WO1998007983A1 Improvements to eolian energy production systems
02/26/1998CA2263966A1 Improvements to eolian energy production systems
01/1998
01/15/1998DE19629579A1 Turbine wheel for wind-powered electrical energy generation
01/08/1998DE19626415A1 Wind-wheel with movable propeller blades
12/1997
12/11/1997WO1997034082A3 Fluid flow turbine with planetary linked paddles
12/04/1997DE19730211A1 Wind engine or wind power generator/plant with one or more rotors
11/1997
11/27/1997WO1997044674A1 Device for rendering visible the fluid flow over a surface
11/13/1997WO1997042409A1 Yawing device and wind power plant comprising a yawing device
10/1997
10/30/1997DE19629168C1 Wind turbine with tower, gondola, and brake
10/23/1997DE19634059C1 Rotor blade for wind power plant
10/22/1997EP0801711A1 Wind turbine with a darrieus h-rotor
10/14/1997US5676524 Vertical-axis wind turbine
10/09/1997DE19720025A1 Drive for angular displacement of wind-power generator rotor blades
09/1997
09/18/1997WO1997034082A2 Fluid flow turbine with planetary linked paddles
09/18/1997DE19628073C1 Wind-powered generation plant rotor blade angle correction method
08/1997
08/28/1997WO1997030813A1 Shaft phase control mechanism
08/12/1997US5656865 Wind conversion unit having cup shaped flow through blades and a centrifugal speed regulator
07/1997
07/29/1997US5652485 Fuzzy logic integrated electrical control to improve variable speed wind turbine efficiency and performance
07/24/1997DE19626402C1 Method of adjusting rotor blade of wind generator
06/1997
06/26/1997WO1997022804A1 Wind turbine yaw system
06/05/1997DE19544401A1 Wind power rotor blade adjuster
06/05/1997DE19544400A1 Wind power rotor blade adjuster in light wind
05/1997
05/20/1997US5630705 Rotor construction for windmill
04/1997
04/03/1997DE19634464A1 Eddy current retarder for wind power generator installation
04/01/1997US5616963 Wind power generator with automatic regulation of blade pitch in response to wind speed by means of spring mounted blades
03/1997
03/27/1997WO1997011272A1 Wind conversion unit
03/19/1997CA2158491A1 Vertical axis wind turbine
03/13/1997WO1997009531A1 Method of operating a wind power station
03/12/1997EP0761964A1 Wind turbine with twin rotor
03/06/1997DE19532409A1 Verfahren zum Betreiben einer Windenergieanlage und eine zugehörige Windenergieanlage A method for operating a wind turbine and associated wind turbine
02/1997
02/06/1997WO1997004521A1 A variable speed wind turbine generator system with zero-sequence filter
02/04/1997US5599168 Wind turbine adaptable to wind direction and velocity
01/1997
01/23/1997DE19526718A1 Wind energy converter with pivotable rotor blades and return spring
01/22/1997EP0754881A2 Drive mechanism
12/1996
12/27/1996WO1996041952A1 Self-governing fluid energy turbine
12/17/1996US5584655 Rotor device and control for wind turbine
12/04/1996EP0638142B1 Rotor construction for windmill
11/1996
11/05/1996US5570859 Aerodynamic braking device
10/1996
10/10/1996DE19528350A1 Adjustable propeller for ultra-light aircraft
09/1996
09/12/1996WO1996020343A3 Rotor device and control for wind turbine
09/11/1996EP0731272A1 Vertical axis wind or water turbine
07/1996
07/04/1996WO1996020343A2 Rotor device and control for wind turbine
06/1996
06/27/1996DE4403527A1 Wind generator blade adjustment
06/27/1996DE19528155C1 Helicopter rotor blade of glass fibre reinforced synthetic resin
06/18/1996US5527152 Advanced wind turbine with lift cancelling aileron for shutdown
06/18/1996US5527151 Advanced wind turbine with lift-destroying aileron for shutdown
06/05/1996DE4442861A1 Wind turbine with rotary axis at right angles to wind direction