The invention relates to an adjustable magnetic coupling assembly for coupling of a first rotary shaft and a second rotary shaft, the magnetic coupling assembly comprising a first and second rotary hub connectable to the first shaft and second shaft, respectively and a central shaft, a first and a second rotatable inductor rotor connected to the central shaft, the inductor rotors being configured to be rotated by the central shaft and to be movable in axial direction along the central shaft by a positioning mechanism and a rotatable central magnet rotor connected to the second rotary hub and arranged centrally between the first and second rotatable inductor rotor. The assembly further comprises a positioning mechanism coupled to the first and second rotatable inductor rotors and configured to selectively move the inductor rotors to adjust the axial distances between the magnet rotor and the respective inductor rotor.

The invention relates to a magnetic coupling assembly for associating a first rotatable shaft to a second rotatable shaft, the magnetic coupling assembly comprising:a rotatable first hub to be connected to the first rotatable shaft, the first hub comprising a magnet rotor comprising a plurality of permanent magnets;a rotatable second hub to be connected to the second rotatable shaft, the second hub comprising a conductor housing comprising at least one conductor positioned at a distance from a side of the magnet rotor facing the second rotatable shaft; wherein at least one of the second hub and first hub comprises an inner hub part and an outer hub part, wherein the hub parts are configured to allow the outer hub part to be axially movable over the inner hub part to adjust the axial position of the at least one conductor relative to the magnet rotor.

A magnetic coupling assembly for coupling of a first rotary shaft and a second rotary shaft. The magnetic coupling assembly includes a first and second rotary hub, a sleeve, coaxial with the first rotary hub and arranged to be rotatable with respect to the first rotary hub, a first and second displacement element threadingly connected to the sleeve, and a first and a second rotatable inductor rotor arranged to co-rotate with the rotation of the first rotary hub. The first and second rotatable inductor rotors are connected to the first and second displacement element, respectively, and rotatable central magnet rotor. The sleeve includes threaded outer surfaces of opposite threading engaged by the first and second displacement elements so as to displace the first and second displacement elements in opposite directions.

A vibration absorber which, in the broadest sense, is based on a pendulum device for dampening undesirable vibrations which occur in a very slender structure, such as a wind turbine. The undesirable vibrations are caused by an acting force, in particular wind force. The invention thereby relates to vibration absorbers in which the pendulum mass can be temporarily stopped or braked, either entirely or partially, by an electromagnetic brake. The power supply or the current regulation of the electromagnetic brake correspondingly controls the braking function of the electromagnetic brake.

Described herein are eddy current brakes and associated methods of their use, particularly configurations that have a kinematic relationship with at least two rotational degrees of freedom used to tune operation of the brake or apparatus in which the brake is located.

A velocity control device for controlling the velocity of a load on a flexible tension member. The device can include a housing having a housing peripheral surface, with a portion of the housing peripheral surface defining an exit opening. The device can also include a phasing induction brake, the phasing induction brake being adjustable to control flux density in a magnetic circuit.

A toothed holding brake for a vehicle door has a shaft, an armature plate, a magnet device and a detection device. The armature plate has a first and second main surfaces arranged opposite one another, wherein an armature-plate toothed rim having a plurality of armature teeth is arranged on the second main surface. The armature plate is arranged in a locking position such that the armature teeth mesh in the carry-along teeth to prevent rotation of the shaft in at least one direction, and is arranged in a release position such that the armature teeth are arranged at a distance from the carry-along teeth to enable rotation of the shaft in both directions. The magnet device has a magnet main surface arranged facing the armature plate, wherein the magnet device is designed to move the armature plate between the locking position and the release position.

A roller device for a traction mechanism drive of a motor vehicle, with a roller element for introducing a torque provided via the traction mechanism and a driven shaft for driving an auxiliary unit. The roller device has a magnetic coupling for non-positive torque transfer between the roller element and the driven shaft. The magnetic coupling has a primary-side unit connected to the roller element with a primary magnetic element and a secondary-side unit connected to the driven shaft with a secondary-side magnetic element. The magnetic elements are permanent and/or electromagnetic elements. The non-positive torque transfer is realized by magnetic fields of the primary-side and secondary-side magnetic elements. At least one magnetic element of the two units for changing the magnetic field overlap of the magnetic fields of the primary-side and secondary-side magnetic elements is movably arranged within its unit. A corresponding traction mechanism drive and method are provided.

A turning device for a turbomachine comprises a plurality of electromagnets connectable to an electric power source; a rotor magnetically coupled with the electromagnets, connectable to a main shaft of the turbomachine and having a rotation axis, the electromagnets are arranged facing the rotor in order to induce eddy currents on a surface of the rotor and apply a torque to the rotor, thus rotating the main shaft.

A personal escape device includes a main housing, a shaft, a magnet housing, and a plurality of magnets. The shaft is rotatably coupled with the main housing and is rotatable about a rotational axis. The magnet housing is positioned in the main housing and is coupled with the shaft such that the magnet housing rotates together with the shaft. The plurality of magnets is coupled with the magnet housing such that the plurality of magnets rotates together with the magnet housing. The stator assembly is coupled with the main housing and surrounds the magnet housing. The stator assembly and the magnet housing are radially spaced from each other to define an air gap therebetween.