Electrical machine with cryogenic cooling
    3.
    发明授权
    Electrical machine with cryogenic cooling 失效
    电机采用低温冷却

    公开(公告)号:US4227102A

    公开(公告)日:1980-10-07

    申请号:US904430

    申请日:1978-05-10

    IPC分类号: H02K9/20 H02K55/04 H02K9/00

    摘要: An electrical machine with cryogenic cooling having a superconducting exciting winding secured to the rotor shaft and accommodated in a cavity in the rotor filled with a coolant. At the places where the superconducting winding is secured to the rotor shaft, there are provided grooves which communicate with a channel for the supply of the coolant, extending along the axis of the shaft at one of its ends, and with a channel for the removal of the coolant, extending along the axis of the shaft at its opposite end. The coolant is removed from the rotor cavity through channels provided at both ends of the rotor shaft. The rotor shaft accounts for an improved thermal protection of the superconducting exciting winding which is cooled only by the liquid phase of the coolant at a temperature of about 4.5 K.

    摘要翻译: 具有低温冷却的电机具有固定在转子轴上的超导励磁绕组,并且被容纳在填充有冷却剂的转子的空腔中。 在超导绕组固定到转子轴的位置处,设置有与用于供应冷却剂的通道连通的槽,其在其一端处沿着轴的轴线延伸,并且具有用于去除的通道 的冷却剂,在其相对端沿轴的轴线延伸。 通过设置在转子轴两端的通道将冷却剂从转子腔中移除。 转子轴对于在约4.5K的温度下仅由冷却剂的液相冷却的超导励磁绕组进行改进的热保护。