DEVICE FOR COOLING ELECTRIC MOTOR FOR TURBINE FAN

摘要

FIELD: turbine fan engineering. SUBSTANCE: motor has shaft 16 which passes through motor 10 and carries impeller 20 of a turbine fan which is positioned outside of housing 11. The impeller of the turbine fan rotates with a speed that exceeds 50000 revolutions per minute thus forming the primary air flow which leaves the turbine fan through outlet port 35. Unit 20 of the turbine fan has a facility for generating the secondary air flow which at least partially cools the electric motor, is supplied from one or several outlet openings 28 and 30, and separated from the primary air flow. EFFECT: enhanced efficiency. 1 dwg