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    • 57. 发明申请
    • Multi-stage pulse tube cryocooler
    • 多级脉冲管低温冷却器
    • US20050274124A1
    • 2005-12-15
    • US11141876
    • 2005-06-01
    • Chao Wang
    • Chao Wang
    • F25B9/00F25B9/14
    • F25B9/145F25B9/10F25B2309/1408F25B2309/1412F25B2309/14241F25B2309/1425F25D19/006
    • A three-stage pulse-tube cryocooler, in which the third stage pulse tube is arranged below the second stage pulse tube, with a gas flow conduit between the second stage pulse tube heat exchanger and the cold end of the second stage regenerator. The design of the invention is much simpler than a conventional three-stage parallel pulse tube cooler, requiring only two pulse tubes at the warm (room temperature) end and two reservoirs, with a corresponding reduction in the number of associated orifices, passages, etc. In effect, this provides a three stage cryocooler with a two-stage warm end design by putting the second and third stage pulse tubes in series, with a gas flow passage providing gas flow between the second and third stages for gas expansion and refrigeration. The three-stage design allows an intermediate temperature connection between the temperatures of the first and third stages, for applications which require three cooling temperatures.
    • 在第二级脉冲管式热交换器和第二级再生器的冷端之间具有气体流路的三级脉冲管式低温冷却器,其中第三级脉冲管布置在第二级脉冲管的下方。 本发明的设计比传统的三级并联脉冲管冷却器简单得多,只需要温暖(室温)端的两个脉冲管和两个储存器,相应的孔,通道等的数量相应减少 实际上,这提供了通过将第二和第三级脉冲管串联放置的具有两级热端设计的三级制冷器,其中气流通道在第二级和第三级之间提供用于气体膨胀和制冷的气流。 三级设计允许在第一级和第三级的温度之间进行中间温度连接,用于需要三个冷却温度的应用。