Title:
PULSE TUBE REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2021/192721
Kind Code:
A1
Abstract:
A pulse tube refrigerator 10 comprising: a pulse tube 50; a two-way flow passage 52 that is connected to the pulse tube 50, and through which a pulse tube inflow 56 and a pulse tube outflow 58 alternately flow; a DC flow generator 40 that is disposed in the two-way flow passage 52, causes a first pressure loss in the pulse tube inflow 56, and causes a second pressure loss, which is different from the first pressure loss, in the pulse tube outflow 58; and a flow-rate controller 80 that is disposed in the two-way flow passage 52 in series with the DC flow generator 40, and controls the flow rate of the pulse tube inflow 56 and the pulse tube outflow 58.
Inventors:
HIRAYAMA TAKASHI (JP)
Application Number:
PCT/JP2021/005500
Publication Date:
September 30, 2021
Filing Date:
February 15, 2021
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
F25B9/00
Foreign References:
| JP2005106297A | 2005-04-21 | |||
| JP2012057871A | 2012-03-22 | |||
| JP2008051408A | 2008-03-06 | |||
| JP2014169852A | 2014-09-18 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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