Salient-pole rotor

Abstract

Abstract PURPOSE: To prevent the temperature of cooling air in field pole gaps from exceeding that of cooling air in a rotor-stator gap, by mounting seal-up plates between the tops of the adjacent field poles and providing the seal-up plates with heat insulating parts which insulate heat between the field pole gaps and the stator-rotor gap. CONSTITUTION: The salient field poles 12 are secured on a rotor 4. Coils 5 are provided around the poles. Cooling air is supplied to the gap 8 between a stator 11 and the field poles 12. the seal-up plates 3 are mounted between the adjacent field poles. Each seal-up plate is provided with a heat insulating part 7 between non- magnetic parts 9 to insulate heat between the stator-rotor gap and the rotor gaps. As a result, the temperature of cooling air in the field pole gaps does not exceed that of cooling air in thestator-rotor gap and the cooling efficiency is improved. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Yasuhiro Yasaka
• 👤 Masatoshi Watabe
• 👤 Shigeo Higuchi

Bibliographic Details