Title:
GM REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2018/163728
Kind Code:
A1
Abstract:
This GM refrigerator 10 is provided with: a compressor 12 having a compressor discharge port 12a and a compressor suction port 12b; a displacer 20 capable of reciprocating in an axial direction; a displacer cylinder 26 for accommodating the displacer 20; a drive piston 22 connected to the displacer 20 so as to drive the displacer 20 to move axially; a drive chamber 46 in which the drive piston 22 is driven; a primary pressure switching valve 60 configured to alternately connect the displacer cylinder 26 to the compressor discharge port 12a and the compressor suction port 12b; a secondary pressure switching valve 62 configured to alternately connect the driving chamber 46 to the compressor discharge port 12a and the compressor suction port 12b; and a buffer volume 68 connected between the secondary pressure switching valve 62 and the compressor 12.
Inventors:
XU MINGYAO (JP)
Application Number:
PCT/JP2018/004998
Publication Date:
September 13, 2018
Filing Date:
February 14, 2018
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
F25B9/14
Foreign References:
| JP2013083428A | 2013-05-09 | |||
| JPH05302764A | 1993-11-16 | |||
| JPH031053A | 1991-01-07 | |||
| JP3439651B2 | 2003-08-25 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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