Title:
WORKING MEDIUM FOR REFRIGERANT COMPRESSION-TYPE REFRIGERATION CYCLE DEVICE, AND REFRIGERATION CYCLE DEVICE USING SAID WORKING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/025152
Kind Code:
A1
Abstract:
[Problem] To provide a working medium for a refrigerant compression-type refrigeration cycle device, said working medium comprising a hydrocarbon-containing refrigerant and a refrigerating machine oil, wherein the refrigerating machine oil achieves at least one of the following advantages, i.e., appropriate compatibility with the refrigerant, low viscosity and high heat stability. [Solution] A working medium for a refrigerant compression-type refrigeration cycle device, said working medium comprising a refrigerant which contains a hydrocarbon having 1-8 carbon atoms and a refrigerating machine oil containing a polyalkylene glycol which is represented by general formula (1): R1-(OR2)n-OH [where: R1 represents a straight chain or branched alkyl group having 1-8 carbon atoms; OR2's are the same or different and represent an oxyalkylene group having 2 and/or 3 carbon atoms; and n represents the addition mole number of the oxyalkylene group represented by OR2] and which has an average molecular weight of 200-1000. In general formula (1), OR2 includes an oxypropylene group, the ratio of the oxypropylene group is 80 mol% or more relative to the total addition mole number of OR2, and the content of an alkylene glycol of general formula (1), in which n is 1, is 3 mass% or less relative to the total mass of the polyalkylene glycol.
Inventors:
TAKAHASHI FUJIO (JP)
KUBO KOJI (JP)
ISHIZUKA GAKU (JP)
SAKATA TATSUHIKO (JP)
KUBO KOJI (JP)
ISHIZUKA GAKU (JP)
SAKATA TATSUHIKO (JP)
Application Number:
PCT/JP2020/030409
Publication Date:
February 11, 2021
Filing Date:
August 07, 2020
Export Citation:
Assignee:
AOKI OIL IND CO LTD (JP)
International Classes:
C10M169/04; C09K5/04; C10M107/34; F25B1/00; C10M129/10; C10M129/76; C10M133/04; C10N20/00; C10N20/02; C10N20/04; C10N30/00; C10N30/02; C10N40/30
Domestic Patent References:
| WO2011162391A1 | 2011-12-29 | |||
| WO2005095557A1 | 2005-10-13 |
Foreign References:
| JP2000129275A | 2000-05-09 | |||
| JP2012233091A | 2012-11-29 | |||
| JP2000096074A | 2000-04-04 | |||
| JPH0284491A | 1990-03-26 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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