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Patent Searching and Data


Title:
FREEZER FOR REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/1992/012223
Kind Code:
A1
Abstract:
A freezer for a refrigerator using 1,1,1,2-tetrafluoroethane as a refrigerant, wherein a lubricating oil (10) for a compressor mainly comprises an ester prepared by the reaction of at least one dihydric or higher alcohol bearing eight or less carbon atoms and having a viscosity of 2 to 8 cst at 100 �C with at least one linear or branched monobasic fatty acid bearing 5 to 8 carbon atoms and the moisture content in the freezer is kept below the saturation moisture content in the lubricating oil (10), thereby solving the problems of the return of the oil to the compressor and the inhibition of the circulation of the refrigerant by the moisture contained in the oil, and maintaining a stable performance for long.

Inventors:
KATAOKA YOSHITAKA (JP)
Application Number:
PCT/JP1991/001769
Publication Date:
July 23, 1992
Filing Date:
December 26, 1991
Export Citation:
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Assignee:
MATSUSHITA REFRIGERATION (JP)
International Classes:
C09K5/04; C10M105/38; C10M171/00; C10N20/02; C10N40/30; (IPC1-7): C10M105/38; C10N20/02; C10N40/30
Foreign References:
JPH02276894A1990-11-13
JPH02140297A1990-05-29
JPH02140298A1990-05-29
EP0435253A11991-07-03
EP0406479A11991-01-09
JPH0388892A1991-04-15
JPH03227397A1991-10-08
JPH03243697A1991-10-30
Other References:
See also references of EP 0522167A4
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