Abstract: Mounting arrangement of the blades on the hub (5) of a wind power turbine comprising a bearing (11) between each blade root (13) and the corresponding hub connection (15) having an inner ring (25) and an outer ring (23) with a stiffening plate (33) attached at least on a part of the outer ring (23), preferably in a perpendicular plane to the blade axis, on the opposed side (29) to the side (37) joined to the hub connection (15).

Abstract: Wind turbine comprising a tower (11), a supporting frame (13) mounted on the tower (11), a drive train including a permanent magnet generator (41) which is directly driven by a wind rotor (15), comprising a wind rotor hub (17) and at least one blade (18), through a generator shaft (43) rigidly connected to a main shaft (29); the wind rotor (15) and the generator (41) being located at opposite sides with respect to the tower (11); the generator (41) being supported by the generator shaft (43) by means of a bearing unit; the wind rotor hub (17) being supported by the supporting frame (13) through a main bearing (27) that do not allow the transmission of bending moments; the connections between the main bearing (27), the main shaft (29) and the generator shaft (43) being adapted to transmit the wind rotor torque to the generator shaft (43) without bending movements.

Abstract: A system for driving a wind turbine blade (46) into a feathered position during an emergency stopping process of a wind turbine rotor. The system comprises a hydraulic actuator (3) functionally connected to the blade (46) for changing the pitch of the blade (46) during movement of the hydraulic actuator (3) and an emergency accumulator (8) connected to the hydraulic actuator (3) for driving the hydraulic actuator (3) with fluid from the emergency accumulator (8). The emergency accumulator (8) comprises a resilient member for accumulating the fluid in the emergency accumulator (8) under resilient pressure or a weight member (74) comprising a weight member upon the fluid in the emergency accumulator. The resilient member (14) or weight member (74) is configured for driving the fluid out of the emergency accumulator due to the expansion or retraction of the resilient member.

Abstract: A system for driving a wind turbine blade (46) into a feathered position during an emergency stopping process of a wind turbine rotor. The system comprises a hydraulic actuator (3) functionally connected to the blade (46) for changing the pitch of the blade (46) during movement of the hydraulic actuator (3) and an emergency accumulator (8) connected to the hydraulic actuator (3) for driving the hydraulic actuator (3) with fluid from the emergency accumulator (8). The emergency accumulator (8) comprises a resilient member for accumulating the fluid in the emergency accumulator (8) under resilient pressure or a weight member (74) comprising a weight member upon the fluid in the emergency accumulator. The resilient member (14) or weight member (74) is configured for driving the fluid out of the emergency accumulator due to the expansion or retraction of the resilient member.

Abstract: Mounting arrangement of the blades on the hub (5) of a wind power turbine comprising a bearing (11) between each blade root (13) and the corresponding hub connection (15) having an inner ring (25) and an outer ring (23) with a stiffening plate (33) attached at least on a part of the outer ring (23), preferably in a perpendicular plane to the blade axis, on the opposed side (29) to the side (37) joined to the hub connection (15).