US2022298448A1PendingUtilityA1

Refrigerator oil, working fluid composition for refrigerators, and refrigerator

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Assignee: ENEOS CORPPriority: Aug 23, 2019Filed: Jul 28, 2020Published: Sep 22, 2022
Est. expiryAug 23, 2039(~13.1 yrs left)· nominal 20-yr term from priority
Inventors:Yohei ShonoFumiyuki Nara
F25B 1/00C10M 2207/2815C10N 2030/02C10M 2207/289C10M 2207/042C10M 2223/041C10M 171/008C10M 2223/047C10M 2203/1025C10N 2040/30C10N 2030/06C10M 2207/026C10N 2020/097C10M 2207/2835C10M 101/02F25B 41/00C10M 129/68C10M 2207/281C10N 2020/02C10M 169/045C10M 129/16F25B 31/002C10M 169/04C10M 2203/003C10M 2207/04C10M 101/00
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Claims

Abstract

The refrigerating machine oil according to the present invention contains a lubricating base oil having a kinematic viscosity at 40° C. of 10 mm 2 /s or less, and an oiliness agent containing at least one selected from the group consisting of an ester oiliness agent and an ether oiliness agent.

Claims

exact text as granted — not AI-modified
1 . A refrigerating machine oil comprising:
 a lubricating base oil having a kinematic viscosity at 40° C. of 10 mm 2 /s or less; and   an oiliness agent comprising at least one selected from the group consisting of an ester oiliness agent and an ether oiliness agent.   
     
     
         2 . The refrigerating machine oil of  claim 1 , wherein the lubricating base oil comprises a mineral oil. 
     
     
         3 . The refrigerating machine oil according to  claim 1 , wherein the oiliness agent comprises the ether oiliness agent. 
     
     
         4 . The refrigerating machine oil according to  claim 3 , wherein the ether oiliness agent is an alkyl or alkenyl glyceryl ether. 
     
     
         5 . A working fluid composition for a refrigerating machine, comprising:
 a refrigerant; and   the refrigerating machine oil according to  claim 1 .   
     
     
         6 . A refrigerating machine comprising a refrigerant circulation system wherein a compressor, a condenser, an expansion mechanism, and an evaporator are connected by piping in this order, wherein the refrigerant circulation system is filled with a refrigerant and the refrigerating machine oil according to  claim 1 .

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