EP 1588050 A1 20051026 - WIND GENERATOR OF THE TYPE WITH AUTOMATIC POWER REGULATION
Title (en)
WIND GENERATOR OF THE TYPE WITH AUTOMATIC POWER REGULATION
Title (de)
WINDERZEUGER MIT AUTOMATISCHER ENERGIEREGELUNG
Title (fr)
EOLIENNE DE TYPE A AUTOREGULATION DE PUISSANCE
Publication
Application
Priority
- FR 0303888 W 20031223
- FR 0216930 A 20021231
Abstract (en)
[origin: WO2004061301A1] The invention relates to a wind generator of the type with automatic power regulation, comprising at least one propeller having at least two blades (21), whereby the efficiency of one propeller varies inversely to a variation in the wind energy, from a lower wind speed limit. The torque/speed characteristics of each propeller are determined such that the working point begins to move towards the areas of low aerodynamic efficiency when the wind speed approaches the value at which the generator reaches the maximum, safety-compliant power. The inventive wind generator is characterised in that it also comprises: at least one centrifugal counter weight system (24) which is arranged such as to reduce the pitch of at least one part of the blades when the speed of rotation is increasing; and at least one system comprising an end stop (30) and return (15) or compression (25) means which mechanically define the initial working pitch and the optimum working pitch up to the nominal speed. According to the invention, one part of the blades is pivot mounted to a shaft (23), thereby driving the end of at least one return spring (15) or compression spring (25) by means of at least one arm or lever (22) or similar device, said end maintaining the blade in contact with at least one fixed end stop element (30) defining the initial pitch.
IPC 1-7
IPC 8 full level
F03D 7/02 (2006.01)
CPC (source: EP US)
F03D 7/0224 (2013.01 - EP US); F05B 2260/77 (2013.01 - EP US); Y02E 10/72 (2013.01 - EP US)
Citation (search report)
See references of WO 2004061301A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2849475 A1 20040702; FR 2849475 B1 20050708; AU 2003303569 A1 20040729; CA 2512228 A1 20040722; EP 1588050 A1 20051026; RU 2003106378 A 20040920; US 2006171810 A1 20060803; US 7198469 B2 20070403; WO 2004061301 A1 20040722
DOCDB simple family (application)
FR 0216930 A 20021231; AU 2003303569 A 20031223; CA 2512228 A 20031223; EP 03814488 A 20031223; FR 0303888 W 20031223; RU 2003106378 A 20030306; US 54117705 A 20050630