Abstract: Device for erecting a wind turbine with a floating foundation, a tower arranged on the floating foundation and two booms extending from the tower, with an energy conversion unit that is arranged in each case at a free end of a boom and has a rotor, characterized by an auxiliary tower with a rope system, connected to a winch, for lifting the energy conversion units that are connected by the booms to the tower of the wind turbine.

Abstract: The invention relates to a single-point mooring wind turbine having a rotor arranged on a tower, characterized by a design counteracting sway of the wind turbine caused by the rotor torque.

Abstract: Coupling for connecting a wind turbine to a power grid, the coupling comprising a first support having at least one first electrical connector and a second support having at least one second electrical connector that is complementary to the first electrical connector, the first support and the second support being rotatable with respect to one another, characterized in that at least one of the connectors is movable transversely to the plane of the supports relative to the other connector in order to form and disconnect an electrical plug connection and the connectors are sealed against the penetration of moisture both when they are interconnected and when they are separated.

Abstract: A wind turbine includes a floating foundation having a plurality of buoyancy bodies, the buoyancy bodies being formed from a plurality of buoyancy body elements designed as hollow bodies, which are arranged adjacent to one another in a first plane concentrically around each central element extending from the floating foundation and are connected to said central element. Each buoyancy body element has a surface supported on the central element, a convex surface arranged opposite the central element, and two lateral surfaces each supported on a lateral surface of an adjacent buoyancy body element.

Abstract: Coupling for connecting a wind turbine to a power grid, the coupling comprising a first support having at least one first electrical connector and a second support having at least one second electrical connector that is complementary to the first electrical connector, the first support and the second support being rotatable with respect to one another, characterized in that at least one of the connectors is movable transversely to the plane of the supports relative to the other connector in order to form and disconnect an electrical plug connection and the connectors are sealed against the penetration of moisture both when they are interconnected and when they are separated.

Abstract: The invention relates to a wind turbine comprising a floating base designed as a semi-submersible, a tower arranged on the floating base, at least two arms extending from the tower, a respective energy conversion unit arranged at the free end of each arm, and a cable system connecting the base to the energy conversion units and connecting the energy conversion units to one another in order to introduce the thrust forces acting on the tower, the arms and the energy conversion units into the base, wherein the cable system has a pre-tensioning, the value of which is greater than the loads to be expected during the operation of the wind turbine and acting against the pre-tensioning.

Abstract: The invention relates to a single-point mooring wind turbine having a rotor arranged on a tower, characterized by a design counteracting sway of the wind turbine caused by the rotor torque.

Abstract: The invention relates to a unit, having a floating wind turbine, which has a floating foundation, and having a floating mooring buoy, which can be connected to the floating foundation of the floating wind turbine and which has at least one anchoring means for anchoring the mooring buoy to the bed of a body of water, characterized in that the floating foundation of the floating wind turbine has a hole for holding the mooring buoy.

Abstract: An offshore wind farm with a plurality of foundation elements which are arranged so as to form the corners of a plurality of parquetted hexagons and with a plurality of floating offshore wind turbines. Each floating offshore wind turbine within a hexagon is connected to the foundation elements which form the hexagon. The invention is characterized in that the floating offshore wind turbines are connected to the foundation elements by means of connection means designed as a chain and/or a cable or a combination of a chain and a cable. The connection means have a length which allows the offshore wind turbines to drift within a circular area with a radius of up to 10% of the hexagon circumradii about the respective hexagon center.

Abstract: The invention relates to a wind turbine comprising a tower; a drive train which has a rotor, a rotor bearing, preferably a transmission, and a generator; a cylinder, the longitudinal axis of which extends transversely to the longitudinal axis of the tower and which receives some sections of the drive train on one side; and a dome which closes the other side of the cylinder. The invention is characterized in that the drive train has means for conducting cooling air between the drive train end face opposite the rotor and the lateral surface of the drive train, the cylinder receives an inner cylinder (42) which separates the interior of the cylinder into an outer cylinder intermediate space and an inner cylinder interior, and the dome is designed as an air/air heat exchanger, wherein the inner cylinder is communicatively connected to the drive train end face opposite the rotor and the dome, thereby forming a closed cooling circuit.

Abstract: The invention relates to a unit, having a floating wind turbine, which has a floating foundation, and having a floating mooring buoy, which can be connected to the floating foundation of the floating wind turbine and which has at least one anchoring means for anchoring the mooring buoy to the bed of a body of water, characterized in that the floating foundation of the floating wind turbine has a hole for holding the mooring buoy.

Abstract: The invention relates to a wind turbine comprising a floating base designed as a semi-submersible, a tower arranged on the floating base, at least two arms extending from the tower, a respective energy conversion unit arranged at the free end of each arm, and a cable system connecting the base to the energy conversion units and connecting the energy conversion units to one another in order to introduce the thrust forces acting on the tower, the arms and the energy conversion units into the base, wherein the cable system has a pre-tensioning, the value of which is greater than the loads to be expected during the operation of the wind turbine and acting against the pre-tensioning.

Abstract: A floating downwind turbine comprising: a floating foundation; a tower which is rotationally fixed on the floating foundation; an energy conversion unit which is mounted on the tower, comprises a rotor and is rotationally fixedly connected to the tower; and at least one tensioning element which connects the tower or the energy conversion unit to the foundation in the upwind direction, the foundation having three legs, one leg of which is longer than the other two legs, the legs being interconnected in a Y shape and the tower, being arranged on the foundation in the connecting region of the legs, and the longest leg extending in the upwind direction and being connected to the tower or to the energy conversion unit by the tensioning element.

Abstract: An offshore wind farm with a plurality of foundation elements which are arranged so as to form the corners of a plurality of parquetted hexagons and with a plurality of floating offshore wind turbines. Each floating offshore wind turbine within a hexagon is connected to the foundation elements which form the hexagon. The invention is characterized in that the floating offshore wind turbines are connected to the foundation elements by means of connection means designed as a chain and/or a cable or a combination of a chain and a cable. The connection means have a length which allows the offshore wind turbines to drift within a circular area with a radius of up to 10% of the hexagon circumradii about the respective hexagon center.

Abstract: Air-cooled oil tank comprising a plurality of pipes which are designed to conduct cooling air therethrough, have substantially the same diameter and extend through the oil tank, characterized by a second pipe which is designed to conduct cooling air therethrough and extends through the oil tank and within the diameter of which a fan is arranged, the diameter of the second pipe being greater than the diameter of the first pipes.

Abstract: A wind turbine, including a transmission, a transmission shaft acting as transmission output, a generator, a generator shaft acting as generator drive and a coupling connecting the transmission shaft and the generator shaft to one another, is characterized in that the generator shaft is designed as a hollow shaft, the coupling is disposed such that the coupling is connected to the generator shaft on the side of the generator facing away from the transmission, and the transmission shaft passes through the generator shaft and is connected to the coupling.

Abstract: A floating downwind turbine comprising: a floating foundation; a tower which is rotationally fixed on the floating foundation; an energy conversion unit which is mounted on the tower, comprises a rotor and is rotationally fixedly connected to the tower; and at least one tensioning element which connects the tower or the energy conversion unit to the foundation in the upwind direction, the foundation having three legs, one leg of which is longer than the other two legs, the legs being interconnected in a Y shape and the tower, being arranged on the foundation in the connecting region of the legs, and the longest leg extending in the upwind direction and being connected to the tower or to the energy conversion unit by the tensioning element.

Abstract: A wind turbine includes a tower, a nacelle rotatably arranged on the tower, and a helicopter landing pad arranged on the nacelle. The wind turbine has a rotor having at most two rotor blades and a locking device for locking the rotor in a position in which the rotor blades extend horizontally, and the helicopter landing pad is arranged on the nacelle in such a way that the cross-section of the upper tower section lies completely within the outer contour of the helicopter landing pad in the top view.

Abstract: A rotor for an electric machine includes a base body and a plurality of support bodies that are fixed on the base body and support permanent magnets. The rotor is characterized in that two first support bodies that are located at a distance from one another form a receiving region for a second support body, allowing the first support body to be positively connected to the second support body.

Abstract: A wind turbine, including a transmission, a transmission shaft acting as transmission output, a generator, a generator shaft acting as generator drive and a coupling connecting the transmission shaft and the generator shaft to one another, is characterized in that the generator shaft is designed as a hollow shaft, the coupling is disposed such that the coupling is connected to the generator shaft on the side of the generator facing away from the transmission, and the transmission shaft passes through the generator shaft and is connected to the coupling.