Cryogenic cooling system with cooldown and normal modes of operation

摘要

A cryogenic cooling system (10) for use with a superconductive electric machine (12) includes a first set of components (14) arranged in a first circuit and adapted to force flow of a cryogen in the first circuit (16) to and from a superconductive electric machine (12) and being operable in a cooldown mode for cooling the cryogen and thereby the superconductive electric machine (12) to a normal operating temperature, and a second set of components (18) arranged in a second circuit and adapted to force flow of a cryogen in the second circuit (20) to and from the superconductive electric machine (12) and being operable in a normal mode for maintaining the cryogen and thereby the superconductive electric machine (12) at the normal operating temperature. <IMAGE>