Invention Grant
US3713305A DEVICE FOR PRODUCING COLD AT TEMPERATURE LOWER THAN THAT OF lambda -POINT OF HELIUM 失效
用于生产低于HELIUM的λ-点温度的温度的装置

  • Patent Title: DEVICE FOR PRODUCING COLD AT TEMPERATURE LOWER THAN THAT OF lambda -POINT OF HELIUM
  • Patent Title (中): 用于生产低于HELIUM的λ-点温度的温度的装置
  • Application No.: US3713305D
    Application Date: 1969-12-16
  • Publication No.: US3713305A
    Publication Date: 1973-01-30
  • Inventor: STAAS FSEVERIJNS A
  • Applicant: PHILIPS CORP
  • Assignee: Philips Corp
  • Current Assignee: Philips Corp
  • Priority: NL6807903 1968-06-05; US88554269 1969-12-16
  • Main IPC: F25B9/12
  • IPC: F25B9/12 F25J1/00 F25B1/06
DEVICE FOR PRODUCING COLD AT TEMPERATURE LOWER THAN THAT OF lambda -POINT OF HELIUM
Abstract:
A device for cooling to temperatures lower than that of the lambda -point of helium, in which some high-pressure helium, after being cooled, expands to low-pressure and flows back to the compression device, and the remainder of the He is cooled to below its lambda -temperature forming superfluid He4 that flows through a superleak, and normal He4, and a vortex tube for communicating.
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