Title:
STIRLING REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2016/121418
Kind Code:
A1
Abstract:
An expander (13) is provided with: a displacer (22) that extends in the axial direction; a cold accumulator (38) that is installed around the displacer (22) so as to guide reciprocation of the displacer (22) in the axial direction; and an expander case (20). The expander case (20) has a connecting port (56) that is formed at a first circumferential position and that connects a compression space (36) to a connecting pipe (12), and is provided with a case section that extends from the connecting port (56) in the circumferential direction and that surrounds the compression space (36). A first working-gas area (60) of the compression space (36) is formed, at the first circumferential position, between the connecting port (56) and the displacer (22). A second working-gas area (62) of the compression space (36) is formed, at a second circumferential position that is different from the first circumferential position, between the case section and the displacer (22). A second radial width of the second working-gas area (62) is smaller than a first radial width of the first working-gas area (60).
Inventors:
NAKANO KYOSUKE (JP)
HIRATSUKA YOSHIKATSU (JP)
YUMOTO KENTA (JP)
HIRATSUKA YOSHIKATSU (JP)
YUMOTO KENTA (JP)
Application Number:
PCT/JP2016/050127
Publication Date:
August 04, 2016
Filing Date:
January 05, 2016
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
F25B9/14
Foreign References:
| JP2008292084A | 2008-12-04 | |||
| JP2003075007A | 2003-03-12 |
Attorney, Agent or Firm:
MORISHITA SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
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