Global Patent Index - EP 2771568 A1

EP 2771568 A1 20140903 - ROTOR BLADE FOR A WATER TURBINE, IN PARTICULAR FOR A TIDAL POWER STATION, AND METHOD FOR OPERATING SAME

Title (en)

ROTOR BLADE FOR A WATER TURBINE, IN PARTICULAR FOR A TIDAL POWER STATION, AND METHOD FOR OPERATING SAME

Title (de)

ROTORBLATT FÜR EINE WASSERTURBINE, INSBESONDERE FÜR EIN GEZEITENKRAFTWERK, UND VERFAHREN FÜR DESSEN BETRIEB

Title (fr)

PALE DE ROTOR POUR UNE TURBINE HYDRAULIQUE, EN PARTICULIER POUR UNE USINE MARÉMOTRICE, ET PROCÉDÉ DE FONCTIONNEMENT DE LADITE PALE DE ROTOR

Publication

EP 2771568 A1 20140903 (DE)

Application

EP 12748168 A 20120811

Priority

  • DE 102011117176 A 20111028
  • EP 2012003445 W 20120811

Abstract (en)

[origin: CA2853693A1] The invention relates to a rotor blade for a water turbine having a hydrodynamic profile, with which a suction side and a pressure side is associated, comprising a plurality of overflow channels that are arranged in the hydrodynamic profile and that establish a hydraulic connection between the suction side and the pressure side and with each of which a valve unit is associated. The invention is characterized in that the valve unit is closed below a predetermined maximum load threshold for the rotor blade and open above the maximum load threshold, wherein, in the open position of the valve arrangement, each overflow channel reduces the power coefficient and/or the thrust coefficient of the rotor blade with respect to the closed position thereof.

IPC 8 full level

F03B 3/12 (2006.01); F03B 11/00 (2006.01); F03B 15/18 (2006.01)

CPC (source: EP US)

F03B 3/121 (2013.01 - EP US); F03B 3/123 (2013.01 - US); F03B 3/145 (2013.01 - US); F03B 11/004 (2013.01 - EP US); F03B 13/26 (2013.01 - US); F03B 15/18 (2013.01 - EP US); F05B 2270/1095 (2013.01 - EP US); Y02E 10/20 (2013.01 - EP US); Y02E 10/30 (2013.01 - EP US); Y02E 10/72 (2013.01 - EP US)

Citation (search report)

See references of WO 2013060399A1

Citation (examination)

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 102011117176 A1 20130502; CA 2853693 A1 20130502; EP 2771568 A1 20140903; JP 2014530987 A 20141120; KR 20140085561 A 20140707; US 2015050146 A1 20150219; WO 2013060399 A1 20130502

DOCDB simple family (application)

DE 102011117176 A 20111028; CA 2853693 A 20120811; EP 12748168 A 20120811; EP 2012003445 W 20120811; JP 2014537503 A 20120811; KR 20147014133 A 20120811; US 201214353386 A 20120811