REFRIGERANT COMPOSITION AND BINARY REFRIGERATOR USING THE SAME

Japanese Patent JP2983969

B2

PROBLEM TO BE SOLVED: To obtain a compsn. which has a sufficient refrigerant capability by mixing an azeotropic mixture of chlorodifluoromethane and octafluoropropane with n-pentane in a specified amt. based on the amt. of the azeotropic mixture.
SOLUTION: This compsn. is prepd. by mixing an azeotropic mixture having an azeotropic point of -47°C and comprising chlorodifluoromethane having a b.p. of -40°C and octafluoropropane having a b.p. of -36.7°C with n-pentane in an amt. of 14 wt.% or lower of the amt. of the azeotropic mixture. Though n-pentane has a high b.p. (36.0°C), it is well compatible with a compressor oil; therefore, a specified amt. of n-pentane mixed enables the oil in the state of being dissolved in n-pentane to be returned to a compressor, thus enabling troubles such as locking of a compressor due to oil-up to be prevented. When a specified amt. of dichloromonofluoromethane is added to the azeotropic mixture, effects similar to one obtd. by n-pentane can be obtd. without the necessity for installing an oil separator for separating the oil.

JP5251237	Fin tube type heat exchanger, refrigeration equipment and hot water supply equipment equipped with this
JP2021127896	COOLING DEVICE
WO/2020/256133	COMPOSITION CONTAINING REFRIGERANT, USE OF SAME, FREEZER HAVING SAME, AND METHOD FOR OPERATING SAID FREEZER

TAKEMASA KAZUO
YOSHIDA FUKUJI
YUZAWA JIRO

JP24981198A

November 29, 1999

September 03, 1998

Click for automatic bibliography generation  

SANYO DENKI KK

F25B1/00; C09K5/04; F25B7/00; (IPC1-7): C09K5/04; F25B1/00; F25B7/00

Koji Yasutomi (1 person outside)

Previous Patent: 弾球遊技機の風車

Next Patent: PRODUCTION OF INTERMEDIATE FOR PRODUCING NEW QUINOLYLOXAZOL-2-ONES USEFUL AS PROTEASE KINASE C INHIB...