Improvements in or relating to closed circulating cooling systems with external ventilating means for electric machines

摘要

274,486. Akt.-GÞs. Brown, Boveri, et Cie. July 16, 1926, [Convention date]. Dynamos and motors, cooling and ventilating. -The air in the casing of an electric machine is circulated over coolers d by a fan b. the coolers and the fan being mounted in a casing secured to, the casing of the machine. In a modification, the coolers are disposed at right-angles to the line A-B joining the centres of the fan and the. machine. In another arrangement, the fan is replaced by smaller fans b1 - - b4, Fig. 3.