Title:
CRYOGENIC REFRIGERATION MACHINE, CRYOGENIC REFRIGERATION MACHINE DIAGNOSTIC DEVICE AND CRYOGENIC REFRIGERATION MACHINE DIAGNOSTIC METHOD
Document Type and Number:
Japanese Patent JP2020134007
Kind Code:
A
Abstract:
To provide a cryogenic refrigeration machine that can acquire measurement data capable of being used in diagnosing a cryogenic refrigeration machine, and to provide a diagnostic technique for a cryogenic refrigeration machine based on such the measurement data.SOLUTION: A cryogenic refrigeration machine 10 includes: a refrigerator cylinder 16; a pressure selector valve 40 for generating periodical pressure variation inside the refrigerator cylinder 16; and a sensor 50 for measuring periodical deformation of the refrigerator cylinder 16 due to the periodical pressure variation inside the refrigerator cylinder 16. The sensor 50 may be used for measuring the periodical pressure variation inside the refrigerator cylinder 16.SELECTED DRAWING: Figure 1
Inventors:
MIZUNO YOJI
SHINOHARA KOHEI
SHINOHARA KOHEI
Application Number:
JP2019027744A
Publication Date:
August 31, 2020
Filing Date:
February 19, 2019
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES
International Classes:
F25B9/00; G01M99/00
Domestic Patent References:
| JP2015178910A | 2015-10-08 | |||
| JP2003329325A | 2003-11-19 | |||
| JP2017040386A | 2017-02-23 | |||
| JP2013242112A | 2013-12-05 | |||
| JPH0618110A | 1994-01-25 | |||
| JP2004340299A | 2004-12-02 |
Foreign References:
| EP0720006A1 | 1996-07-03 |
Attorney, Agent or Firm:
Sakaki Morishita
Tomisho Teruo
Tomisho Teruo