Abstract: A permanent-magnetically excited electric machine comprising a stator part (2) and a moving part (30) movable relative to the stator part (2), as well as an air gap (8) between the stator part (2) and the moving part (30), with one of said stator part (2) and said moving part (30) having a flux path assembly for magnetic flux and winding coils (6) and the other one of said stator part (2) and said moving part (30) having a flux path assembly for magnetic flux and permanent magnets (36), characterized in that there is provided a flux conduction liquid (18) that is conductive for magnetic flux; and that in the region of the flux path assembly of the stator part (2) and/or of the moving part (30), there is provided at least one filling space (12; 16; 20; 38; 46; 48; 50) which, for changing the magnetic flux conductivity of the flux path assembly, may have optionally more or less flux conduction liquid supplied (18) thereto.

Abstract: A reluctance electric machine comprising: (a) a stator part (4) with stator teeth (12) of magnetically conductive material that are provided with coil windings (24); (b) and a rotor part (6) arranged coaxially with respect to the stator part (12) and located opposite the stator part (12) so as to leave free an air gap (8) therebetween; (c) the rotor part (6) having a number of discrete poles (20) of magnetically conductive material that project in the direction towards the stator part (12), characterized in (d) that cooling with channelled coolant flow is provided at least for partial sections of the coil windings (24) of the stator part (12).

Abstract: If an interturn short-circuit occurs in a stator coil winding of a permanent magnet excited electric machine, a short-circuit current is produced there that results in an electrically induced magnetic alternating flux which corresponds in its value to the permanent magnetic alternating flux flowing through the respective winding and which is opposite in phase. Such a sort-circuit current could lead to burn-off of the turn due to its considerable strength and the loss associated therewith. To prevent this, the invention suggests in case of detection of an interturn short-circuit, to entirely short-circuit at least the coil affected by the short-circuit or to apply thereto a corresponding in-phase current and to reduce the excessive short-circuit current in the individual turn or in the individual turn section by way of this overall short-circuit current in the coil. It is thus possible to prevent burn-off of the respective turn part.

Abstract: For enhancing the operational safety of an electric drive unit of a vehicle comprising a generator (G), which is operated by a combustion machine (V), and drive motors (M1, M2), which are connected to said generator via a direct-voltage intermediate circuit, the generator and drive motors are each subdivided into partial units (TG1, TG2; TM11-TM22), and these partial units have partial power electronics units (TGLE1, TGLE2; TM1LE1, TM1LE2 . . . ) associated therewith. The mutually corresponding partial units of generator, motors and power electronics units each constitute a drive circuit (AK1, AK2) of their own, with control signals being supplied to components thereof by a specifically assigned system control unit (1, 2). The system control units that are interconnected via an information exchange channel (IAK) can undertake compensation measures in their drive circuit or in the other drive circuits in the event of a complete or partial failure of a drive circuit (AK1, AK2).

Abstract: The invention relates to a non-railbound land vehicle (2) comprising a drive system with the following components; a combustion engine-generator unit (=VG unit) (14, 16); at least one electric drive motor (18, 20); a power control station (30) for the electric motor that can be operated by the driver of the vehicle and a control electronics (24) that is connected to the VG unit, the electric motor and the power control station.

Abstract: An electric machine (2) comprising a rotor (4) and a stator (6) arranged coaxially therewith, at least one of said rotor (4) and stator (6) being formed of a plurality of parts and there being provided a bandage (16) holding together the plurality of parts of said rotor and/or stator (6), wherein the bandage (16) is formed of an electrically non-conducting fiber material having a coefficient of thermal expansion similar to the coefficient of thermal expansion of the parts of said rotor (4) and/or stator (6).

Abstract: If an interturn short-circuit occurs in a stator coil winding of a permanent magnet excited electric machine, a short-circuit current is produced there that results in an electrically induced magnetic alternating flux which corresponds in its value to the permanent magnetic alternating flux flowing through the respective winding and which is opposite in phase. Such a short-circuit current could lead to burn-off of the turn due to its considerable strength and the loss associated therewith. To prevent this, the invention suggests in case of detection of an interturn short-circuit, to entirely short-circuit at least the coil affected by the short-circuit or to apply thereto a corresponding in-phase current and to reduce the excessive short-circuit current in the individual turn or in the individual turn section by way of this overall short-circuit current in the coil. It is thus possible to prevent burn-off of the respective turn part.

Abstract: For obtaining a compact superconductive power switch for rapid switching speeds and with high dielectric strength, several winding layers (10a . . . 10h) with several windings each are lined up adjacent each other in axial direction. Between individual layers (10a . . . 10h), there are provided cooling/heating elements (8a to 8d) in order to transfer the high-current switch unit (1) to the superconducting state and the normally conducting state, respectively, by cooling/heating, i.e. for closing and opening said unit, respectively. Mutually adjacent current conductors have the switching current flowing therethrough in opposite directions, so that the high-current switch unit (1) is of low induction, which permits fast switching times in particular when the switch is opened by an additional current pulse.

Abstract: An electric machine comprising the following features: (a) an outer, first stator part and an inner, second stator part, the two stator parts being coaxial and being radially spaced apart by an intermediate space; (b) each stator part has, facing the intermediate space, a circumferential series of stator poles, at least a partial number of which carries a winding; (c) a rotor part disposed in the intermediate space; (d) the rotor part has a circumferential series of alternating permanent magnets and magnetic flux conducting pieces, said permanent magnets being magnetized in circumferential direction; (e) the width of the permanent magnets—measured in circumferential direction—is larger on the central radius of the rotor part than radially outside and radially inside on the rotor part and the width of the magnetic flux conducting pieces—measured in circumferential direction—is correspondingly smaller on the central radius of the rotor part than radially outside and radially inside on th

Abstract: An electric machine comprising a stator and a rotor (2) separated by an air gap (12), (a) the rotor (2) being composed with permanent magnets (8) magnetized substantially in circumferential direction, and with one magnetic flux conducting piece assembly (10) of at least one magnetic flux conducting piece (10a; 10b) between two adjacent permanent magnets each; (b) the permanent magnets (8)—when looking at the overall geometry—each having an increasing circumferential width from the head portion on the side of the air gap to the foot portion; (c) and the conducting piece assemblies (10) between two adjacent permanent magnets (8)—when looking at the overall geometry—each having a decreasing circumferential width from the head portion on the side of the air gap to the foot portion, characterized in (d) that the conducting pieces (10a; 10b) at the foot end each have a widened portion in circumferential direction, having at least one shoulder (20) through which they are supported on an a

Abstract: A motor vehicle with a combustion engine (2), a transmission (8) and a mechanical drive line (6) comprises a coaxially disposed electric generator (10) for providing power to electric loads, said generator being coupled directly with the crankshaft (4) of the combustion engine. The rotor of the generator serves as a flywheel in particular when the generator is designed in outside rotor construction. Stator and rotor of the generator are each formed as hollow cylinders and have a small axial length in comparison to the mounting diameter of the generator. The generator can also be used as a starter motor when operated as a motor. An additional possibility of application is for damping the torsional vibration of the crankshaft of the combustion engine, the transmission and the mechanical drive line.

Abstract: An electric pump includes an impeller, a shaft and a motor having at least one permanent magnet rotor and a stator. The impeller is coupled by the shaft to the at least one permanent magnet rotor of the electric motor. A hermetically sealed housing is provided in which the shaft is supported and which has openings for delivery side and suction side connections for material to be pumped. The rotor is disposed inside the housing and the stator of the electric motor is disposed outside the housing. At least one stator carrier is attached to the housing, the stator being mounted in the at least one stator carrier. The at least one stator carrier is of one-piece configuration so as to enclose the housing across an entire circumference thereof in a cup-shaped manner. The at least one stator carrier holds a liquid for cooling the at least one stator.

Abstract: An electric machine comprising a winding-carrying stator part (4) and an armature part (6) movable relative thereto. The stator poles (10) and their winding (12) are mounted on a stator support (8) of U-shaped cross-section. The stator support (8) has formed therein flow spaces (30, 32) for a cooling fluid (34) flowing at least across partial regions of the stator pole winding (12).

Abstract: A shoe with a shaft that encloses the front of the wearer's foot and is attached to a sole component. The upper section and lower section of the shaft and an inserted strip that extends along their outer edges in the vicinity of the attachment are attached along at least one hand-laced seam. The strip can be inserted between the edges of the sections of the shaft and can also overlap the edge of the lower section of the shaft. One embodiment includes a two-layer strip with two halves sewn together along the edge of an incision. This strip can be inserted as a whole or with only one half between the sections of the shaft. In the later event the second half of the strip will overlap the outside of the edge of the lower section of the shaft.

Abstract: An electric machine includes an exciter part and an induction part disposed adjacent the exciter part. The exciter part and the induction part define an air gap there-between and are movable relative to one another thereby defining a direction of movement. The induction part includes teeth disposed adjacent one another and projecting in a direction toward the air gap. The teeth define grooves therebetween, each of the teeth having a tooth base and a tooth tip adjacent the air gap. In addition, each of a plurality of the teeth further includes a middle portion having two ends and a constant width defined in a direction along the air gap and perpendicular to the direction of movement; and a pair of tooth widening portions, each of the tooth widening portions having a free end and a transition end and being located at one of the two ends of the middle portion at the transition end thereof for forming one of the plurality of the teeth with the middle portion.

Abstract: An inductive superconducting current storage (2), characterized in that it comprises an inner coil (4) wound from superconducting material and an outer coil (6) wound from superconducting material and disposed around the inner coil (4) in spaced manner therefrom, said inner coil (4) and said outer coil (6) in operation having current flowing therethrough in opposite directions so that the same magnetic flux as in the inner space (14) of the inner coil (4), but of opposite direction, is present in the annular space (12) between inner coil (4) and outer coil (6).

Abstract: A linear accelerator has at least one longitudinal stator section that defines a linear path of movement and that comprises several stator coils as well as a rotor with several rotor coils that can be accelerated along the path of movement. The stator is designed as a tubular body from the inner wall of which project coil carriers with coil conductors that are mutually offset by 90 degrees. The cavities thus formed are engaged by the rotor coils that comprise each an electrically non-conductive carrier on the sides on which are arranged meandering coil conductors. The design and arrangement of the rotor coils and stator coils allow a circular magnetic field to be generated, with the result that the rotor is axially accelerated. The rotor is supplied with current by conductor rails by a cable entrained with the rotor an/or by charge accumulation in the coils before acceleration begins.

Abstract: A pump of compact design, which is hermetically sealed to the outside and has no shaft lead-outs to the outside, includes a housing with an internal partition dividing the inside of the housing into a drive section and a pump section. A single shaft, which is supported in the partition, carries on one side the rotor of an electric drive motor and on the other side the impeller of the pump. In the cavity of the drive section, a gas pressure is generated which assists in preventing the pumping material from passing into the drive section.

Abstract: A non-rail bound vehicle comprising at least two drive electromotors (8), the one thereof being provided for driving a driving wheel (12) on the left side of the vehicle and the other one thereof being provided for driving a driving wheel (12) on the fight side of the vehicle, characterized in that each of the two electromotors (8) has its own motor control (30) associated therewith for presetting the instantaneous nominal power and/or the instantaneous nominal speed of the respective electromotor (8); and that a superior central control (28) connected to the central controls (30) is provided which controls the two electromotors (8) via the motor controls (30) so as to prevent drive slip and/or brake locking and/or to provide a fight/left drive differential that is favourable in terms of movement dynamics, with the central control (28) and/or the motor controls (30) taking into account information on the instantaneous actual electrical power and/or the instantaneous actual speed of the two electromotors (8).

Abstract: An electric machine includes an armature which has a permanent-magnetic excitation part of the machine and a stator which has an induction part of the machine. The induction part includes a first and a second region, each region equipped with current conductors. The armature and the stator are movable relative to each other. The machine includes an electronic commutator which has electronic components. An adjustment to purposefully change a voltage induced in the induction part during operation of the machine, by adjustment of the relative phase of the voltages induced in the two regions of the induction part is achievable due to the first region of the induction part being physically adjustable relative to the second region of the induction part in the direction of relative movement of the armature and the stator. In addition, a sensor is provided in the second region for detecting the instantaneous relative position of the armature and the stator.