摘要:
A method and device for determining the motor moment constant kM of an electric motor by measuring motor parameters on the running motor. For reduction of the previously considerable measuring effort it is proposed that firstly the generator voltage UEMK produced by the motor is measured, and in that the motor moment constant kM is calculated by division of the generator voltage UEMK and the speed of rotation fMot of the motor, taking into consideration at least one further constant. The method and the device are suitable for DC motors and for 3-phase synchronous motors.
摘要:
The invention concerns a method and a device for determining the motor moment constant kM of an electric motor by measuring motor parameters on the running motor. For reduction of the previously considerable measuring effort it is proposed that firstly the generator voltage UEMK produced by the motor is measured, and in that the motor moment constant kM is calculated by division of the generator voltage UEMK and the speed of rotation fMot of the motor, taking into consideration at least one further constant. The method and the device are suitable for DC motors and for 3-phase synchronous motors.
摘要:
An assembly for manufacturing a hose with a nozzle, which is connected with a hose via an annular outlet and preferably has a perforation inside the annular outlet, the hose having a mount on its end opposing the nozzle and the mount having a perforation. This makes it possible to also lead a cooling medium against the direction of the extrusion through the extruded hose.
摘要:
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.
摘要:
An electric motor for conveying media includes (a) a stator; (b) a rotor including a rotor magnet; and (c) a media throughput opening between the stator and the rotor. A smallest inner diameter of the stator is 1.5- to 8-times as large as a largest outer diameter of the rotor magnet.
摘要:
A turbocharger includes a compressor arrangement for compressing fresh air for internal combustion engines, containing a compressor wheel as well as an electric motor with a rotor and stator. A rotor magnet of the rotor is designed such that it is partially or completely integrated into the compressor wheel, and the smallest diameter of the stator is 1.5- to 8-times the size of the largest outer diameter of the rotor. The turbocharger has a very spontaneous response behaviour in the transient range, as well as the possibility of an exact real-time regulation of the mass flow. It furthermore renders possible the energy recovery and this contributes to increasing the total efficiency.
摘要:
The invention relates to a method for adhering an object (12) having an adhesive tape (16) preferably having a liner (26), wherein the object having the adhesive tape contacts and is applied to the object during transport of the object having the likewise transported adhesive tape and wherein the speed of the object and the speed of the adhesive tape are synchronized during the adhesion. In order to enable adhesion of the object without influencing the adhesive tape, whereby the adhesive effect could be negatively influenced, according to the invention the object is transported by means of a handling arrangement and both the velocity and acceleration curves of the object are transferred to the transport of the adhesive tape via an axis of the handling device.
摘要:
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.
摘要:
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 characterised by a very spontaneous response behaviour, as well as the possibility for energy recovery.
摘要:
A window pane (1), in particular an automobile window pane, is adhesively bonded to a frame (8) of a window opening by an adhesive bead (6), and carries a profiled bead (3) provided with a recess (4) extending longitudinally and a tear-away cord (8) laid therein. Tear-away cord (8) is designed for breaking the adhesive bond between window pane (1) and frame (7). A contact surface is provided for adhesive bead (6) alongside profiled bead (3). In the fitted state, recess (4) is open toward adhesive bead (6) so that the tear-away cord may be pulled without exerting a high force directly in the adhesive bead that abuts the opening of the recess.