ClassID:

144959

F05B2270/604 - CPC Classification

Classification description:

Control; Control system actuates through hydraulic actuators

Recent Application in this class:
#1
20260002514
2026-01-01

WIND TURBINE ROTOR BLADE PITCH CONTROL FOR TOWER FATIGUE REDUCTION

#2
20250215852
2025-07-03

HYDRAULIC DEVICE FOR A PITCH SYSTEM, A PITCH SYSTEM AND WIND TURBINE

#3
20240401564
2024-12-05

ADAPTIVE PITCH REFERENCE RATE FOR CONTROLLING WIND TURBINE BLADE PITCH

#4
20240191700
2024-06-13

ELECTRIC GENERATOR

#5
20230349360
2023-11-02

Hydraulic pitch drive system

#6
20220403820
2022-12-22

Method of controlling a wind turbine and controller for a wind turbine

#7
20220025867
2022-01-27

WIND TURBINE BLADE FLOW REGULATION

#8
20210372372
2021-12-02

Pitch control method and system of symmetrical-airfoil vertical axis wind turbine

#9
20210340953
2021-11-04

Pitch varying device, pitch varying method and pitch varying control device for wind turbine blade and wind turbine

#10
20210246872
2021-08-12

Velocity feedfoward control of a hydraulic pitch system

#11
20210207574
2021-07-08

Wind turbine pitch actuator mounting structure

#12
20210062782
2021-03-04

Power generation device

#13
20200256314
2020-08-13

Pitch system for a wind turbine

#14
20200102933
2020-04-02

Variable flow hydraulic circuit for a wind turbine

#15
20200072193
2020-03-05

Safety stop assembly

#16
20190186463
2019-06-20

Flow control arrangement for a wind turbine rotor blade

#17
20190078555
2019-03-14

Method for controlling hydraulic pitch force system

#18
20190055923
2019-02-21

Damping of a wind turbine tower oscillation

#19
20190055922
2019-02-21

Pitch control system for pitching wind turbine blade

#20
20190024639
2019-01-24

System and method for removing or installing rotor blade hardware of a wind turbine

#21
20190017552
2019-01-17

Clamping apparatus for positioning a main bearing of a wind turbine during an installation and/or repair procedure

#22
20190017520
2019-01-17

Servo governor by PWM

#23
20180372061
2018-12-27

Eccentrically rotating mass turbine

#24
20180274515
2018-09-27

Movable-blade operation system for hydraulic machine

#25
20180245571
2018-08-30

Gearbox for a wind turbine

#26
20180245565
2018-08-30

Control system for submersible electric motor drive control

#27
20180224063
2018-08-09

Wind turbine and method for controlling an access point in a closed area of a wind turbine

#28
20180058424
2018-03-01

Controlling rotational speed by changing blade profile

#29
20160356260
2016-12-08

Device for reversing a blade of a runner unit

#30
20160273517
2016-09-22

Wind turbine blade

#31
20160265508
2016-09-15

Wind turbine blade

#32
20150152842
2015-06-04

Wind energy system with a pitch adjustment system

#33
20140331797
2014-11-13

Yawing system comprising a preload mechanism

#34
20140328681
2014-11-06

Pitch system for a wind turbine

#35
20140328679
2014-11-06

Hydraulic pitch system for a wind turbine

#36
20140161613
2014-06-12

Pitch regulation apparatus for a wind turbine blade

#37
20140010661
2014-01-09

Wind turbine blade bearing removal apparatus and method

#38
20130323051
2013-12-05

WIND TURBINE GENERATOR AND VALVE FUNCTION CHECKING METHOD FOR WIND TURBINE GENERATOR

#39
20130302139
2013-11-14

Floating offshore wind turbine comprising an active nacelle tilt stabilization system

#40
20130149148
2013-06-13

CABLE TENSION BRAKE SYSTEM

#41
20130149146
2013-06-13

SHUFFLING CALIPER YAW ACTUATOR AND BRAKE SYSTEM

#42
20130098237
2013-04-25

Device for controlling the movement of a ring gate of a hydraulic machine and hydraulic machine comprising such a device

#43
20130032436
2013-02-07

HYDRAULIC BRAKING DEVICE FOR A YAW DRIVE OF A WIND TURBINE AND CONTROL DEVICE THEREFOR

#44
20120288372
2012-11-15

Teeter-restraint device for wind turbines

#45
20120251316
2012-10-04

INDEPENDENT BLADE PITCH CONTROL

#46
20120207597
2012-08-16

Method for positioning a hydraulic accumulator on a wind-powered electric generator

#47
20120187681
2012-07-26

Wind turbine and a method for powering one or more hydraulic pitch actuators

#48
20120134828
2012-05-31

WIND TURBINE WITH HYDRAULIC BLADE PITCH SYSTEM

#49
20120134827
2012-05-31

Pitch driving unit for wind-turbine rotor blade and wind power generator equipped with the same

#50
20120134816
2012-05-31

Pilot circuitry for controlling the emergency feathering of a wind turbine

#51
20120134806
2012-05-31

Wind turbine and a method for pitching a blade of a wind turbine

#52
20120134801
2012-05-31

Blade pitch controller, wind turbine generator, and method of controlling blade pitch

#53
20120063901
2012-03-15

Wind turbine blade pitch-control system, and wind turbine rotor and wind turbine generator provided with the same

#54
20120051907
2012-03-01

Independent blade pitch control

#55
20110268568
2011-11-03

APPARATUS AND METHOD FOR ADJUSTING THE YAW OF A NACELLE OF A WIND ENERGY SYSTEM

#56
20110142640
2011-06-16

CYLINDER DRIVING DEVICE

#57
20110038730
2011-02-17

Device for changing a pitch of a blade of an impeller/propeller and a fan comprising the device

#58
20110020136
2011-01-27

BLADE PITCH-ANGLE CONTROL APPARATUS AND WIND TURBINE GENERATOR

#59
20100232964
2010-09-16

ELECTRO-HYDRAULIC ACTUATOR FOR CONTROLLING THE PITCH OF A BLADE OF A WIND TURBINE

#60
20100226774
2010-09-09

Wind turbine control system and apparatus

#61
20100226772
2010-09-09

Blade control system

#62
20100215494
2010-08-26

Wind Turbine Rotor Blade

#63
20100209245
2010-08-19

Gearless pitch control mechanism for starting, stopping and regulating the power output of wind turbines without the use of a brake

#64
20100158705
2010-06-24

DEVICE AND METHOD FOR COLLECTING THE KINETIC ENERGY OF A NATURALLY MOVING FLUID

#65
20100135799
2010-06-03

Blade pitch control system

#66
20100117361
2010-05-13

Wind turbine, a method for compensating for disparities in a wind turbine rotor blade pitch system and use of a method

#67
20100014972
2010-01-21

System for rotating a wind turbine blade

#68
20090317254
2009-12-24

Pitch actuator for wind turbine generator, and wind turbine generator

#69
20090185902
2009-07-23

Device for Controlling the Blades of a Wind Turbine

#70
20090068012
2009-03-12

Teeter-restraint device for wind turbines

#71
20080145222
2008-06-19

Active tower damper

#72
20080030027
2008-02-07

Systems, methods and apparatuses for a wind turbine controller

#73
20070267873
2007-11-22

Method and system for wind turbine blade movement

#74
20060083615
2006-04-20

Pitch drive system for a wind turbine

#75
17952523
2023-10-31

Method and system for detection and mitigation of edge-wise vibrations in wind turbine blades