| 摘要 |
Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to the rotor of a superconducting generator using a cryogenic fluid transfer joint cantilevered on the collector end of the rotor. Pressure of the boil-off coolant is employed to prevent the liquid coolant from entering a relative-motion gap about the bayonet, while the boil-off coolant flows through the gap to reduce heating of the bayonet. Flow of noncryogenic gas is used to regulate flow of the boil-off coolant and to minimize contamination of the coolant by bearing lubricant.
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