ClassID:

142434

F03D7/0252 - CPC Classification

Classification description:

Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking with aerodynamic drag devices on the blades

Recent Application in this class:
#1
20250035083
2025-01-30

WIND TURBINE WITH BLADES INCLUDING OPENINGS FOR CONTROLLING ROTATIONAL SPEED

#2
20230220827
2023-07-13

DEVICE AND METHOD OF CONTROLLING AN OPERATION OF A WIND TURBINE TO REDUCE LOAD AT YAW MISALIGNMENT

#3
20220403822
2022-12-22

Stopping a wind turbine rotor using pre-set pitch rates

#4
20220228556
2022-07-21

Method of shutting down a wind turbine

#5
20220003209
2022-01-06

Wind energy installation and a method of operating a wind energy installation

#6
20220003208
2022-01-06

Wind energy installation and a method of operating a wind energy installation

#7
20210199089
2021-07-01

Wind turbine drive control device, wind turbine power supply device, wind power generation device, and control method

#8
20190285051
2019-09-19

Relating to wind turbines having blades equipped with boundary layer control system

#9
20180291875
2018-10-11

Method and device for controlling floating body wind turbine power generating apparatus, and floating body wind turbine power generating apparatus

#10
20180171975
2018-06-21

MULTI-FUNCTIONAL FLAP USED AS A BACK-FLOW FLAP

#11
20160076516
2016-03-17

Wind turbine air deflector system control

#12
20150354536
2015-12-10

Wind turbine blade

#13
20150330362
2015-11-19

Method and device for controlling floating body wind turbine power generating apparatus, and floating body wind turbine power generating apparatus

#14
20150308403
2015-10-29

Flow deflection device of a wind turbine

#15
20150204306
2015-07-23

Rotatable aerodynamic surface features for wind turbine rotor blades

#16
20150030447
2015-01-29

Centrifugally driven aerodynamic rotor blade brake assembly

#17
20150010400
2015-01-08

Wind turbine rotor blade having a spoiler

#18
20140152201
2014-06-05

Electric motor clamping system

#19
20140050579
2014-02-20

System and method for braking a wind turbine rotor at an overspeed condition

#20
20130078092
2013-03-28

DEVICE AND METHOD FOR CONTROLLING ROTATION SPEED OF A VERTICAL AXIS WINDMILL BY USING ROTATING CENTRIFUGAL FORCE OF ROTOR BLADES

#21
20130028734
2013-01-31

MAGNETIC ACTIVE FLAP

#22
20120282094
2012-11-08

Wind turbine blade tip brake apparatus and method

#23
20120263601
2012-10-18

Wind turbine with deployable air deflectors

#24
20120134814
2012-05-31

WIND TURBINE ROTOR BLADE WITH FAIL-SAFE AIR BRAKE FLAPS

#25
20120134803
2012-05-31

Method for shut down of a wind turbine having rotor blades with fail-safe air brakes

#26
20120063896
2012-03-15

Load mitigation device for wind turbine blades

#27
20110255969
2011-10-20

Wind turbine with control system

#28
20110223022
2011-09-15

ACTUATABLE SURFACE FEATURES FOR WIND TURBINE ROTOR BLADES

#29
20110142634
2011-06-16

OVERSPEED PROTECTION SYSTEM AND METHOD

#30
20110110777
2011-05-12

ACTIVE FLOW CONTROL DEVICE AND METHOD FOR AFFECTING A FLUID BOUNDARY LAYER OF A WIND TURBINE BLADE

#31
20110002772
2011-01-06

Control device and method for an aerodynamic brake of a wind energy converter

#32
20100296935
2010-11-25

Centrifugally driven aerodynamic rotor blade brake assembly

#33
20100215493
2010-08-26

Wind Turbine Blade And Method For Controlling The Load On A Blade

#34
20100209258
2010-08-19

BLADE FOR A ROTOR OF A WIND TURBINE PROVIDED WITH BARRIER GENERATING MEANS

#35
20100021300
2010-01-28

VERTICAL AXIS WINDMILL

#36
20090285682
2009-11-19

Wind turbine with deployable air deflectors

#37
20090028705
2009-01-29

Wind turbine blade with deflectable flaps

#38
20080309090
2008-12-18

Power generating system including modular wind turbine-generator assembly

#39
20080227378
2008-09-18

Blade For Vertical Axis Wind Turbine and Lift Type Vertical Axis Wind Turbine Having the Same

#40
20070116572
2007-05-24

Method and apparatus for wind turbine braking