| 主权项 |
1. Brushless electrical machine comprising drive shaft supported through corresponding bearings in front and rear end bells, having stationary fit up on the drive shaft rotor set, enveloped by cylindrical stator, on its inner surface is even distributed multitude of slots, where are laid one or more multiphase windings with a number of phases more than two, whereas the brushless electrical machine is provided with a fan and ventilating ducts, characterized by that at least one third of said cylindrical stator /5/ is covered by aluminum body /8/, centering on the outer surface of said cylindrical stator /5/, composed of fore-part /8a/, united with said front end bell /16/ and mirror located to said fore-part /8a/ rear part /8b/, which is united with said rear end bell /13/, whereas said covering aluminum body /8/ at least in the part covering said cylindrical stator /5/ and partially outside it has four longitudinal walls, among which are arranged corner zones, whereas ventilating ducts /9/ are at least two and are formed in each corner zone of the two parts /8a and 8b/ of said aluminum body /8/, separated by a partition internal ribs /10/, whereas said rear part /8b/ is pressed to said fore-part /8a/ so that said ducts /9/ and said partition internal ribs /10/ belonging to said fore-part /8a/ and to said rear part /8b/ of said aluminum body /8/ are an extension for one another. |
