LIQUID-COOLED ELECTROMOTOR

摘要

Hydraulic drive systems require compact, efficient motor-pump aggregates. These requirements are met by integrating, as far as possible, an electromotor and one or more pumps into one device. This does however present this problem that only a special type of pump can then be integrated into the motor. Very different types of pumps can be easily connected to the inventive electromotor without compromising the advantages of conventional aggregates, i.e. the inherent liquid cooling and lubrication of the electromotor. To this end, the cover of the motor housing is at least partially hollow for the purpose of holding a liquid coolant and at least one connecting channel is provided in the bearing ends, for conveying liquid coolant from the cover cavity to the bearings.