Patent ID: 6536218
Filing Date: 2003-03-25
Classification: F25B,F25D,H01F,H02K,Y02E

Abstract:
A superconducting device, comprising:a rotor, mounted so as to rotate about a rotation axis and including a winding of conductors including superconductor material; and a refrigeration unit, designed for a working gas and including, at least one regenerative cryocooler including at least one cold head arranged in the rotor and thermally coupled to the winding, for indirect cooling of the winding, a stationary compressor unit located outside the rotor, and a transfer unit, arranged between the cold head and the compressor unit, including a sealing device and a gas coupling for conveying the working gas between the stationary and rotating parts, wherein a direct connection for the working gas is provided between the gas coupling and the cold head.