Patent ID: 8262361

Claim:
A wind turbine blade comprising at least one central spar longitudinal section ( 7 ) and at least two shell longitudinal sections ( 5 , 9 ), wherein: a) each central spar section ( 7 , 7 ′, 7 ″) is composed of only two cap prefabricated panels ( 15 , 17 ) and two single-piece web prefabricated panels ( 19 , 21 ) placed side by side in a box shape; b) each shell section ( 5 , 5 ′, 5 ″, 5 ′″, 5 ″″; 9 , 9 ′, 9 ″, 9 ′″) forming, respectively, a leading edge and a trailing edge of the corresponding blade section is placed adjacently to a central spar section ( 7 , 7 ′, 7 ″); c) each shell section ( 5 , 5 ′, 5 ″, 5 ′″, 5 ″″; 9 , 9 ′, 9 ″, 9 ′″) is composed of at least a single prefabricated panel ( 31 , 33 ); d) an aerodynamic surface of the blade is composed of just said cap panels ( 15 , 17 ) and shell prefabricated panels ( 31 ; 33 ); and e) joints between panels are carried out by chemical and/or mechanical joints.