REFRIGERATION APPARATUS

PROBLEM TO BE SOLVED: To enable realization of a novel refrigeration cycle by changing at least one of a refrigerant or refrigeration machine oil of a conventional refrigeration cycle. SOLUTION: In a refrigeration cycle constituted of at least a compressor 40, a condenser 41, an expansion system 42...

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Bibliographic Details
Main Authors TANAKA MAKOTO, NAKA REIJI, KOSOKABE HIROKATSU, IWATA HIROSHI, IIZUKA TADASHI, HATAKE HIROAKI, FUKUDA KATSUMI, NARIYOSHI KOJI, HONMA KICHIJI
Format Patent
LanguageEnglish
Published 06.06.2000
Edition7
Subjects
ADHESIVES
BLASTING
CHEMISTRY
COMBINED HEATING AND REFRIGERATION SYSTEMS
DYES
FUELS
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
LUBRICANTS
LUBRICATING COMPOSITIONS
MANUFACTURE OR STORAGE OF ICE
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
MECHANICAL ENGINEERING
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
POLISHES
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To enable realization of a novel refrigeration cycle by changing at least one of a refrigerant or refrigeration machine oil of a conventional refrigeration cycle. SOLUTION: In a refrigeration cycle constituted of at least a compressor 40, a condenser 41, an expansion system 42 and an evaporator 43, at least part of a refrigerant of the refrigeration cycle using as the refrigerant a fluorocarbon containing chlorine is replaced with a fluorocarbon not containing chlorine. Preferably, a refrigeration machine oil having a critical temperature of at least 40 deg.C and viscosities of 2-70 cSt at 40 deg.C and 1-9 cSt at 100 deg.C and comprising ester oil of a fatty acid, as a base oil, having at least two ester bonds (-O-CO-) in a molecule is used as the refrigeration machine oil.
Bibliography:Application Number: JP19990252296