COOLING MEDIUM SUPPLYING/DISCHARGING MECHANISM FOR SUPERCONDUCTING ROTARY ELECTRIC MACHINE, AND SUPERCONDUCTING ROTARY ELECTRIC MACHINE

To provide a simple structure so as to inhibit a temperature increase of a cooling medium, and inhibit a seal part from being excessively cooled.SOLUTION: A cooling medium supplying/discharging mechanism for a superconducting rotary electric machine according to an embodiment includes: a casing including a first fixed pipe that is used to supply a cooling medium, and a second fixed pipe that is used to discharge the cooling medium and that is disposed so as to surround at least a portion of the first fixed pipe; a rotor including a first rotary pipe that feeds the cooling medium supplied from the first fixed pipe to a certain space in a rotor coil, and a second rotary pipe that is disposed so as to surround at least a portion of the first rotary pipe and that feeds the cooling medium having passed through the rotor coil, to the second fixed pipe; and a seal part that prevents the cooling medium from leaking from an area between the second rotary pipe and an end of the second fixed pipe. The second fixed pipe is disposed so as to surround a portion of the second rotary pipe, and a cooling medium residence space where the cooling medium stays is formed between the surrounded portion of the second rotary pipe and the portion of the second fixed pipe.SELECTED DRAWING: Figure 1 【課題】 簡易な構成により、冷却媒体の昇温を抑えつつ、シール部が過度に冷却されることを抑える。【解決手段】 実施形態による超電導回転電機の冷却媒体給排機構は、冷却媒体の供給に使用される第１の固定配管と、冷却媒体の排出に使用され、前記第１の固定配管の少なくとも一部を内包するように配置される第２の固定配管と、を備えるケーシングと、前記第１の固定配管から供給される冷却媒体を回転子コイルのある空間へ送る第１の回転配管と、前記第１の回転配管の少なくとも一部を内包するように配置され、前記回転子コイルを通った冷却媒体を前記第２の固定配管へ送る第２の回転配管と、を備える回転子と、前記第２の回転配管と前記第２の固定配管の端部との間から冷却媒体が外部に漏れることを防ぐシール部と、を具備する。前記第２の固定配管は、前記第２の回転配管の一部を内包するように配置され、当該内包される前記第２の回転配管の一部と前記第２の固定配管の一部との間に冷却媒体が滞留する冷却媒体滞留空間が形成されている。【選択図】 図１