Windmill

Details Windmill Windmill

F - Mech Eng,Light,Heat,Weapons

03

D

F03D 9/00 (2006.01) F03D 11/00 (2006.01) F03D 11/02 (2006.01)

Patent

CA 2426407

Wind power plant with a wind turbine with a turbine shaft (8) which with a generator shaft (22), which can be an extension of the turbine shaft, is connected to the rotor (12) of an electric generator (11). The turbine shaft (8) is journalled in two bearing housings (6, 7) with bearings (9, 10) arranged on a base (4) at the top of a tower (1). The generator shaft (22) is integrated with or rigidly connected to a flexing turbine shaft (8). The stator (19) and rotor (12) are carried by the generator shaft (22), to allow the generator (11) to follow the flexing movement of the turbine shaft (8). the stator (19) is locked against turning by a non-rotatable coupling (20) which transfers substantially no bending moment or axial force acting against the flexing of the turbine shaft (8) due to the bending moment acting on the turbine shaft (8) from its hub, the bearings (9 and 10) being provided to allow flexing of the turbine shaft.

L'invention concerne une éolienne comprenant une turbine munie d'un arbre (8) relié au rotor (12) d'une génératrice électrique, l'arbre de la génératrice (22) pouvant constituer un prolongement de l'arbre de la turbine. L'arbre de la turbine (8) traverse deux corps de palier (6, 7) renfermant des roulements (9, 10), disposés sur une base (4), au sommet d'un mât (1). L'arbre de la génératrice (22) est intégré dans l'arbre de la turbine souple (8) ou relié de façon rigide à ce dernier. Le stator (19) et le rotor (12) sont portés par l'arbre de la génératrice (22), ce qui permet à la génératrice (11) de suivre le mouvement de fléchissement de l'arbre de la turbine (8). Le stator (19) est verrouillé contre tout mouvement de rotation par un élément d'assemblage fixe (20) permettant d'éliminer sensiblement tout transfert de moment de flexion ou de force axiale agissant contre le fléchissement de l'arbre de la turbine (8) en raison du moment de flexion agissant sur l'arbre de la turbine (8) depuis son moyeu, les roulements (9, 10) permettant le fléchissement de l'arbre de la turbine.

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