Abstract: A coil device with at least one electrical coil winding with superconducting conductor material and a vacuum container is described in which the vacuum container surrounds the coil winding. The coil winding is part of a self-contained circuit for the formation of a continuous current. The closed circuit has a switchable conductor section, the conductor of which can be switched between a superconducting state and a normally conducting state by a magnetic device. The magnetic device has an internal part arranged inside the vacuum container and an external part arranged outside the vacuum container.

Abstract: A superconducting machine is disclosed, in particular for use as a generator in a stand-alone power system. In at least one embodiment, the superconducting machine includes a stator and a rotor capable of rotating with respect to the stator. At least one superconducting coil for generating at least two magnetic poles is provided on at least one component part, in particular the rotor, which superconducting coil is cooled via a cooling device; and at least two parallel winding elements are provided on the respective other component part, in particular the stator, in the armature winding for each phase, which winding elements can be connected either in series or in parallel via at least one switching device.

Abstract: A rotor for an electric machine includes a pole core having a coolable magnetisable rotor section which is made of a super-conducting material. The rotor section has a rotationally symmetric geometry. The pole core is formed as a cylinder and the rotor section is arranged on an outer surface of the cylinder so as to be encircling.

Abstract: A rotor for an electric machine includes a pole core having a coolable magnetisable rotor section which is made of a super-conducting material. The rotor section has a rotationally symmetric geometry. The pole core is formed as a cylinder and the rotor section is arranged on an outer surface of the cylinder so as to be encircling.

Abstract: A device for potting coils, in particular superconducting coils, and an operating method for said device are provided. The device comprises an outer potting container , a potting chamber for accommodating at least one coil to be potted, and a device for filling with potting mass. The outer potting container is lined with an inner potting container , the material of which has a diamond pyramid hardness number below 500 and a melting point between 45 degrees Celsius and 200 degrees Celsius. In the operating method, the shape of the inner potting container is achieved by mechanical or thermal processing, at least one coil to be potted is positioned in the potting chamber, a potting mass is filled into the remaining hollow space in the potting chamber, the potting mass is hardened, and the potted coil is removed from the device.

Abstract: A superconducting machine is disclosed, in particular for use as a generator in a stand-alone power system. In at least one embodiment, the superconducting machine includes a stator and a rotor capable of rotating with respect to the stator. At least one superconducting coil for generating at least two magnetic poles is provided on at least one component part, in particular the rotor, which superconducting coil is cooled via a cooling device; and at least two parallel winding elements are provided on the respective other component part, in particular the stator, in the armature winding for each phase, which winding elements can be connected either in series or in parallel via at least one switching device.

Abstract: The invention relates to an electric machine (101) comprising a stator (103), a rotatably mounted rotor (105) having a magnetizable and coolable rotor section (107) made of a super-conducting material (417), a control unit (109) designed to control a stator flow for inducing a magnetic flow through the superconducting material (417). The invention also relates to a method for operating an electric machine (101).

Abstract: A rotor for an electric machine includes a pole core having a coolable magnetisable rotor section which is made of a super-conducting material. The rotor section has a rotationally symmetric geometry. The pole core is formed as a cylinder and the rotor section is arranged on an outer surface of the cylinder so as to be encircling.

Abstract: A super conductor is disclosed, in particular a high temperature super conductor of a synchronous machine, including a cooling circuit for a coolant. The liquefied coolant in the cold head provided with a condenser is guided to the super conductor which is to be cooled, in particular in the rotor of the synchronous machine and is returned to the condenser in a gaseous form. In order to guide the coolant from the condenser to the super conductor, pressure generated by a component of the coolant evaporated by a heat source is used.

Abstract: A connecting point between first and a second devices is sealed with respect to the passage of liquids through the connecting point by applying a soft solid onto the surface and pressing the soft solid into depressions in the surface for sealing purposes.

Abstract: A superconductive synchronous machine having superconductive magnetic bearings. A superconductor (6) on the stator side as a first bearing part is disposed opposite from a second bearing part (12) on the rotor side, the second being part being magnetically and mechanically connected via a flux feed section (11) to the pole core (9) of the rotor. A superconductive exciting coil (10) in the rotor pole core (9) excites both the pole core (9) and the second bearing part (12). In order to cool the superconductive exciting coil (10), coolant feeds (16, 16?, 24, 25) are provided, which are sealed in relation to the rotor shaft (8, 8?) by ferrofluid seals (26). The power for the exciting coil is fed via slip rings (21) or by being inductively connected (29) at the rotor shaft (8?).

Abstract: The invention relates to a bearing device (100) for the contactless bearing of a rotor in relation to a stator (101). Said bearing device (100) comprises a rotor provided with a shaft (102) and at least one rotor disk (103), and a stator (101) provided with at least two stator disks (105, 106). Said stator (101) at least partially surrounds the rotor at a certain distance and the rotor disks (103) protrude into the intermediate chamber (104) between the rotor disks thus forming a bearing gap (107). Said bearing device (100) also comprises a magnetic bearing part for bearing the rotor in a radial manner and an air bearing part for bearing the rotor in an axial manner.

Abstract: The invention relates to a bearing device (100) having a magnetic bearing (210) for mounting a shaft (101) and a damping device (200). The damping device (200) comprises a first disc-shaped damper part (201) that is part of the shaft (101), and a yoke-shaped second damper part (202) that comprises side parts (211) guiding the magnetic flow and means (212) for producing a magnetic field. The side parts (211) guiding the magnetic flow are disposed at a distance from one another to form an annular-cylindrical intermediate chamber in the axial direction relative to the axis (A). The first damper part (201) protrudes into said intermediate chamber in a radial fashion relative to the axis (A). The second damper part (202) completely surrounds the disc-shaped first damper part (201).

Abstract: A superconductive synchronous machine having superconductive magnetic bearings. A superconductor (6) on the stator side as a first bearing part is disposed opposite from a second bearing part (12) on the rotor side, the second being part being magnetically and mechanically connected via a flux feed section (11) to the pole core (9) of the rotor. A superconductive exciting coil (10) in the rotor pole core (9) excites both the pole core (9) and the second bearing part (12). In order to cool the superconductive exciting coil (10), coolant feeds (16, 16?, 24, 25) are provided, which are sealed in relation to the rotor shaft (8, 8?) by ferrofluid seals (26). The power for the exciting coil is fed via slip rings (21) or by being inductively connected (29) at the rotor shaft (8?).

Abstract: A rectangular coil has several successive windings which are made of a strip-shaped super conductor, which contains at least one core which is embedded in a normal conductive matrix material and which is made of a high-Tc-super conductor material. The coil is made of a strip-shaped superconductor and does not have additional insulation.

Abstract: A rectangular coil has several successive windings which are made of a strip-shaped super conductor, which contains at least one core which is embedded in a normal conductive matrix material and which is made of a high-Tc-super conductor material. The coil is made of a strip-shaped superconductor and does not have additional insulation.

Abstract: The invention relates to an insulated container (11) which can be evacuated and has an application (12) to be cooled, in which insulated container (11) a vacuum can be built up by means of a vacuum pump (22). In order to allow the vacuum pump (22) to be switched off during normal operation, a getter material (26) is arranged in the insulated container and binds gas components which penetrate into the insulated container as a result of unavoidable leakages. The invention provides for the getter material to be accommodated in maintenance areas (20), which can be disconnected by means of valves (21) from the working area (18) which contains the application (12). This allows the getter materials (26) in each maintenance area to be replaced or regenerated, while the operation of the application (12) to be cooled can be maintained owing to the partitioning of the working area (18) from the maintenance area (20).

Abstract: A first bearing part is arranged fixedly in terms of rotation on a rotor shaft with permanent magnetic elements arranged next to one another and flux guide elements arranged between them. A second bearing part, separated from the first bearing part by a bearing gap, is provided on the stator and has a structure formed of superconductive high-Tc material. The bearing gap is sealed against penetration of ambient air, but allows movement of the first bearing part with respect to the second bearing part while maintaining the seal.

Abstract: The invention relates to an insulated container (11) which can be evacuated and has an application (12) to be cooled, in which insulated container (11) a vacuum can be built up by means of a vacuum pump (22). In order to allow the vacuum pump (22) to be switched off during normal operation, a getter material (26) is arranged in the insulated container and binds gas components which penetrate into the insulated container as a result of unavoidable leakages. The invention provides for the getter material to be accommodated in maintenance areas (20), which can be disconnected by means of valves (21) from the working area (18) which contains the application (12). This allows the getter materials (26) in each maintenance area to be replaced or regenerated, while the operation of the application (12) to be cooled can be maintained owing to the partitioning of the working area (18) from the maintenance area (20).

Abstract: A method involves sheathing a superconductor with a thermoplastic insulation material on all sides. The conductor exits a guide channel that extends in the propulsion direction. A melt hose is extruded from the molten insulation material in the propulsion direction and through a nozzle that has an outlet which embraces the conductor, whereby a distance is kept on all sides. The melt hose is stretched via the propulsion of the conductor. The hose is drawn to the surface of the conductor and is compacted by cooling. The method can especially be used for sheathing band-shaped high-Tc-superconductors. Materials having processing temperatures between 200° C. and 450° C., are selected as thermoplastic insulation materials.