EP 2459871 A2 20120606 - AEROGENERATOR WITH FREE INTERNAL FLOW ROTOR
Title (en)
AEROGENERATOR WITH FREE INTERNAL FLOW ROTOR
Title (de)
WINDGENERATOR MIT ROTOR MIT FREIEM INTERNEN FLUSS
Title (fr)
AÉROGÉNÉRATEUR DOTÉ D'UN ROTOR À ÉCOULEMENT INTERNE LIBRE
Publication
Application
Priority
- IT PI20090096 A 20090731
- IB 2010053481 W 20100730
Abstract (en)
[origin: WO2011013105A2] The present invention concerns an innovative rotor (1') for an aero-generator comprising an upper bulkhead (3), a lower bulkhead (2) and a rotational axis (7) around which the rotor is rotatable. A plurality of blades (1) are connected by one of their end to the upper bulkhead (3) and by the opposed end to the lower bulkhead (2) in such a way as to form an internal chamber (20), rotatable around the said rotational axis (7). The blades, of a predetermined airfoil, further result distanced among them to allow the passage through the chamber (20) of a flow, preferably an air flow, and are arranged according to a certain blade pitch angle in such a way that, in use, when the flow collides with the chamber (20), it can go into the chamber (20) from a side undergoing a first deviation and go out from the opposite side further undergoing a second deviation, generating lift on the blades that it collides with and therefore causing a rotation of the rotor (1'). In accordance with the invention, the blades have an airfoil with high curvature and are further arranged according to an angle of incidence comprised within a variable range between 30° and 60°, preferably between 37° and 52°, in such a way as to increase the lift forces.
IPC 8 full level
F03D 3/00 (2006.01); F03D 3/04 (2006.01); F03D 3/06 (2006.01)
CPC (source: EP)
F03D 3/005 (2013.01); F03D 3/049 (2013.01); F03D 3/061 (2013.01); F03D 3/068 (2013.01); F03D 7/06 (2013.01); F05B 2240/301 (2013.01); F05B 2250/232 (2013.01); F05B 2260/72 (2013.01); F05B 2260/79 (2013.01); Y02E 10/74 (2013.01)
Citation (search report)
See references of WO 2011013105A2
Citation (examination)
EP 0610905 A1 19940817 - FARRAR AUSTIN PACKARD [GB]
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 SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
WO 2011013105 A2 20110203; WO 2011013105 A3 20110407; EP 2459871 A2 20120606; IT 1397762 B1 20130124; IT PI20090096 A1 20110201
DOCDB simple family (application)
IB 2010053481 W 20100730; EP 10754561 A 20100730; IT PI20090096 A 20090731