EP 2567089 A2 20130313 - ROTOR BLADE PITCH ADJUSTMENT DEVICE
Title (en)
ROTOR BLADE PITCH ADJUSTMENT DEVICE
Title (de)
ROTORBLATTVERSTELLEINRICHTUNG
Title (fr)
DISPOSITIF DE RÉGLAGE DE PALES DE ROTOR
Publication
Application
Priority
- DE 102010019444 A 20100505
- DE 2011000374 W 20110408
Abstract (en)
[origin: WO2011137885A2] A rotor blade pitch adjustment device for a wind power installation is disclosed, having a motor/pump unit whose rotation speed and direction are variable and which is connected for fluid-flow purposes to a hydraulic actuator via a hydraulic open-loop/closed-loop control system. The actuator is mechanically coupled to at least one rotor blade of the wind power installation in order to rotate the rotor blade about its longitudinal axis. According to the invention, an electrical control circuit, which comprises an emergency power supply device, is provided for operation of the motor.
IPC 8 full level
F03D 7/02 (2006.01)
CPC (source: EP KR US)
F01D 7/00 (2013.01 - KR US); F03D 7/0224 (2013.01 - EP KR US); F03D 7/0264 (2013.01 - EP KR US); F05B 2260/406 (2013.01 - EP KR US); F05B 2260/76 (2013.01 - EP KR US); F05B 2260/79 (2013.01 - EP KR US); F05B 2270/107 (2013.01 - EP KR US); F05B 2270/328 (2013.01 - KR); F05B 2270/604 (2013.01 - EP KR US); Y02E 10/72 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2011137885A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010019444 A1 20111110; CN 102859185 A 20130102; EP 2567089 A2 20130313; KR 20130086130 A 20130731; US 2013243624 A1 20130919; WO 2011137885 A2 20111110; WO 2011137885 A3 20120426
DOCDB simple family (application)
DE 102010019444 A 20100505; CN 201180022293 A 20110408; DE 2011000374 W 20110408; EP 11735969 A 20110408; KR 20127028852 A 20110408; US 201113695891 A 20110408