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Title:
極低温混合冷媒システムのフリーズアウト防止方法
Document Type and Number:
Japanese Patent JP4277078
Kind Code:
B2
Abstract:
Refrigerant freezeout is prevented by the use of a controlled bypass flow that causes a warming of the lowest temperature refrigerant in a refrigeration system that achieves very low temperatures by using a mixture of refrigerants comprising at least two refrigerants with boiling points that differ by at least 50° C. This control capability enables reliable operation of the very low temperature system.

Inventors:
Frein, Kevin
Boyarski, Mikhail
Podcherniaev, Oleg
Application Number:
JP2003538655A
Publication Date:
June 10, 2009
Filing Date:
October 28, 2002
Export Citation:
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Assignee:
Brooks Automation Incorporated
International Classes:
F25B1/00; F25B9/00; F25B49/02; F25B47/00
Domestic Patent References:
JP4046667U
JP2242051A
JP9318205A
JP54135762U
JP5032969U
JP2195156A
JP2003535299A
JP2004502024A
Foreign References:
US3768273
US5946925
US4258553
US6047556
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Shinichi Iwata
Masaaki Ogata