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Title:
DILUTION REFRIGERATING MACHINE
Document Type and Number:
Japanese Patent JP2007333273
Kind Code:
A
Abstract:

To improve the handling and transporting properties of a dilution refrigerating machine by miniaturizing a body part (a part of a cryogenic container) while permitting long-time continuous operation, and to prevent the loss of the flexibility in the layout and controllability by avoiding the trouble caused by the vibration generated when a mechanical refrigerating machine such as a GM refrigerating machine is used.

The mechanical refrigerating machine is used for 3He (liquid helium) condensation. A part of the mechanical refrigerating machine (or the mechanical refrigerating machine and the part of a condenser) is separated from the body part of the mechanical refrigerating machine, and a pre-cooling refrigerant to transmit the cold heat generated in the mechanical refrigerating machine to the body part of the dilution refrigerating machine is actively pressed and circulated by a vacuum pump. 3He is condensed by liquid helium without using the mechanical refrigerating machine, and the part equivalent to a 1K pot in the condenser (the part to store the pre-cooling refrigerant for cooling/condensing 3He), or the part of the condenser itself is separated from the body part of the dilution refrigerating machine.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
YOSHIDA SHIGERU
UMENO TAKAHIRO
KOIKE YOSHIHIRO
Application Number:
JP2006164203A
Publication Date:
December 27, 2007
Filing Date:
June 14, 2006
Export Citation:
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Assignee:
TAIYO NIPPON SANSO CORP
International Classes:
F25B9/12; F25B9/14
Domestic Patent References:
JP2005090928A2005-04-07
JPH11108476A1999-04-23
JP2000220902A2000-08-08
JPH07142234A1995-06-02
JPS62175560A1987-08-01
Attorney, Agent or Firm:
豊田 武久