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Patent Searching and Data


Title:
CRYOGENIC REFRIGERATOR AND PIPING SYSTEM FOR CRYOGENIC REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2019/172144
Kind Code:
A1
Abstract:
A cryogenic refrigerator 10 comprising: high-pressure lines 24 through which a refrigerant gas can flow from a first compressor 12 and a second compressor 14 to a high-pressure port 16a of a cold head 16 through a convergence part 25; and low-pressure lines 26 through which the refrigerant gas can flow from a low-pressure port 16b of the cold head 16 to the first compressor 12 and the second compressor 14 through a branching part 27. The high-pressure lines 24 comprise a first high-pressure sub-line 24b connecting the first compressor 12 to the convergence part 25 and having a first check valve 28, and a second high-pressure sub-line 24c connecting the second compressor 14 to the convergence part 25 and having a second check valve 29. The low-pressure lines 26 comprise a first low-pressure sub-line 26b connecting the branching part 27 to the first compressor 12 and having a third check valve 30, and a second low-pressure sub-line 26c connecting the branching part 27 to the second compressor 14 and having a fourth check valve 31.

Inventors:
MARUYAMA Toru (LTD. Tanashi Works 1-1, Yato-cho 2-chom, Nishitokyo-shi Tokyo 85, 〒1888585, JP)
Application Number:
JP2019/008209
Publication Date:
September 12, 2019
Filing Date:
March 01, 2019
Export Citation:
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Assignee:
SUMITOMO HEAVY INDUSTRIES, LTD. (1-1 Osaki 2-chome, Shinagawa-ku Tokyo, 25, 〒1416025, JP)
International Classes:
F25B9/00; F25B9/14; F25B49/02
Attorney, Agent or Firm:
MORISHITA Sakaki (2-11-12, Ebisu-Nishi Shibuya-ku Tokyo, 21, 〒1500021, JP)
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