REFRIGERANT COMPRESSOR AND REFRIGERATING PLANT USING THIS REFRIGERANT COMPRESSOR

PROBLEM TO BE SOLVED: To provide a lubricant for a refrigerant compressor for use in a refrigerating plant using an HFC based refrigerant and an ether or ester based composite oil, which contains less oligomer solving out of an insulating film of an electric motor and which is superior in thermal st...

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Bibliographic Details
Main Authors SUNAGA TAKASHI, SAKAI KAZUMA, OBOKATA YOSHINOBU, HASEBE SACHIKO, YAMAGUCHI WATARU, MIZUNO TAKAYUKI
Format Patent
LanguageEnglish
Published 06.03.2001
Edition7
Subjects
BLASTING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a lubricant for a refrigerant compressor for use in a refrigerating plant using an HFC based refrigerant and an ether or ester based composite oil, which contains less oligomer solving out of an insulating film of an electric motor and which is superior in thermal stability and oxidation stability as a refrigerating machine oil and less in hydrolysis and wear at a sliding portion. SOLUTION: As an insulating film, a copolymeric film 32 of polyethylene terephthalate and polyethylene naphthalate is used and a refrigerator oil is incorporated with at least one of antioxidant, acid trapper and extreme pressure additive, thereby preventing the deterioration of a refrigerating plant and the locking malfunction of a refrigerant compressor.
Bibliography:Application Number: JP19990235846