| 摘要 |
An automatic arrangement is provided for control of the flow of vaporized coolant used for removing heat from each of the current leads carrying current to the rotor winding of a superconducting rotor. That portion of each lead extending from a coolant vapor return duct (through which the leads enter the machine) into the rotor winding chamber is formed as a hollow insulated (electrically and thermally) structure. The terminal length thereof is turned radially outward and the open outer end thereof is disposed below the surface of the pool of liquid coolant in the rotor winding chamber. A vapor trap is defined in the hollow lead, the vapor therein having a pressure greater than the pressure in the vapor core in the rotor winding chamber, this pressure differential being accommodated by a difference between the liquid level of the pool and the level of the liquid entering into the outer end of the hollow lead.
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