Abstract: A compressor arrangement for compressing fresh air for internal combustion engines includes a compressor wheel and an electric motor having at least one stator and at least one rotor having a rotor magnet and a rotor gap between the rotor and stator. The rotor gap is designed such that when the compressor wheel rotates, at least 50%, of the air mass flow to be compressed is fed through the rotor gap. The compressor wheel is mounted on a shaft or contains the shaft and at least one rotor magnet or a carrier for holding the rotor magnet and is mountable as a separate part on said shaft and may be bolted, splinted, glued, shrunk, or secured by form-fit to said shaft to prevent rotation.

Abstract: A turbocharger includes a turbine wheel, a compressor wheel connected thereto, an electric motor situated on the side of the compressor wheel which is distant to the turbine wheel, and a rotor connected to the compressor wheel in a rotationally fixed manner and designed in a freely projecting manner. A drive system for motor vehicles includes a turbocharger. The turbocharger is characterized by a very spontaneous response behavior, as well as the possibility for energy recovery.

Abstract: An electromotor or a generator for conveying gas and/or liquid media. The electromotor or the generator has a rotor with a rotor magnet. The rotor is surrounded by a stator. The stator has at least one stator groove limited by a stator tooth. At least a part of the stator groove serves as a medium passage opening.

Abstract: An electromotor including a rotor rotatably running on bearings on a rotor shaft and a stator surrounding the rotor. The stator has a short-circuit body and a winding which can be impinged by current. The short-circuit body receives at least partly the medium line(s).

Abstract: The present invention relates to a compressor arrangement for compressing fresh air for internal combustion engines, comprising a compressor wheel (3) and an electric motor (4) having at least one stator (4b) and at least one rotor (4a) having a rotor magnet (4c) and a rotor gap between the rotor (4a) and stator (4b), the rotor gap being designed such that when the compressor wheel rotates, at least 50%, preferably at least 90%, especially preferably 100% of the air mass flow to be compressed is fed through the rotor gap, wherein the compressor wheel (3) is mounted on a shaft (8) or contains said shaft (3a) and at least one rotor magnet (4c) or a carrier (20) for holding the rotor magnet is mountable as a separate part on said shaft and may be bolted, splinted, glued, shrunk, or secured by form-fit to said shaft to prevent rotation. Thus, an energy-saving and very fast-acting compressor for motor vehicles is provided that can particularly be produced on a large industrial scale, cost-effectively, and quickly.

Abstract: The present invention relates to a flexible-tubing motor for coupling dental instruments, containing a motor with a stator, with a rotor as well as with a coupling for coupling dental instruments, as well as a flexible tubing, wherein media conduits are led through the flexible tubing for the supply of media to the dental instrument, and the flexible tubing at the end which is distant to the motor may be connected to a drive and control unit for supplying and regulating media. The flexible-tubing motor according to the invention is distinguished by a very compact constructional manner, by which the operator is permitted to work without tiring, even over a long period of time.

Abstract: The present invention relates to an electric motor for the drive of a dental or medical instrument, with a rotor magnet mounted on a shaft, as well as with a stator and media conduits for leading through media to the dental instrument. A Gramme stator winding is provided in the electric motor, wherein at least regionally, media conduits run within the stator winding or between individual sections of the stator winding. The electric motor according to the invention is distinguished by a very compact constructional manner, by which the operator may work without getting tired, even over a long period of time.