Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Base oil of refrigerator oil, refrigerator oil, and work fluid composition for refrigerator

A technology for refrigerating machine oil and working fluid is applied in the field of refrigerating machine oil and working fluid composition for refrigerating machine, and can solve the problems of poor oil return, poor oil return, and poor lubrication of refrigerating machine oil.

Active Publication Date: 2021-02-26
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the refrigerating machine oil widely used as HFC refrigerant is difficult to be compatible with R32 refrigerant, which makes the refrigerating machine oil poor in oil return in the refrigerating system, resulting in a decrease in the amount of refrigerating machine oil inside the compressor and poor lubrication ; and the refrigeration oil with good compatibility with R32 refrigerant, mixed with R32 refrigerant working fluid composition, the viscosity is too small under the high temperature and high pressure working conditions of the refrigerator, resulting in poor lubrication, which increases the wear of the moving parts of the compressor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Base oil of refrigerator oil, refrigerator oil, and work fluid composition for refrigerator
  • Base oil of refrigerator oil, refrigerator oil, and work fluid composition for refrigerator
  • Base oil of refrigerator oil, refrigerator oil, and work fluid composition for refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] Hereinafter, the present invention will be more specifically described based on examples and comparative examples, but the present invention is not limited at all by the following examples. The base oils, additives and various index test methods used in each embodiment and comparative example are listed below. In Examples 1-25 and Comparative Examples 1-16, the following base oils 1-35 and additives 1-6 were blended so as to form the composition ratios shown in Tables 1-5 to prepare sample oils, And the proterties of the sample oil that embodiment 1-25 and comparative example 1-16 obtain and the index recorded by following each index test method are recorded in table 1-5, wherein in table 1-5 each component The proportioning form is mass percentage.

[0037] (base oil)

[0038] Base oil 1: Pentaerythritol is esterified with a mixed acid formed of 3-methylbutyric acid, 2-ethylhexanoic acid, and 3,5,5-trimethylhexanoic acid with a carboxyl molar ratio of 20:10:70 The r...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pour pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of refrigerating machine oil products, in particular to base oil of refrigerator oil, refrigerator oil containing the base oil and a working fluid composition for a refrigerating machine. The base oil of refrigerator oil is ester synthesized from pentaerythritol and a plurality of fatty acids, the fatty acids comprise a first fatty acid, the first fattyacid is a C5 straight-chain and / or branched-chain monobasic fatty acid; the fatty acids further comprise at least one of a second fatty acid and a third fatty acid, wherein the second fatty acid is aC8-C9 branched-chain monobasic fatty acid, and the third fatty acid is binary fatty acid of C5-C8. The refrigerating machine oil and the working fluid composition for the refrigerating machine provided by the invention can simultaneously consider the intermiscibility, lubricity, thermal stability and / or chemical stability of the refrigerant when the R32 refrigerant is used.

Description

technical field [0001] The present application relates to the technical field of refrigerating machine oil products, in particular, to a refrigerating machine oil base oil, and to refrigerating machine oil and a working fluid composition for refrigerating machine containing the refrigerating machine oil base oil. Background technique [0002] As the ozone layer is depleted, CFC (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons), conventionally used as refrigerants for refrigerating machines, are subject to regulation, and HFC (hydrofluorocarbons) refrigerants are replacing them. Among the HFC refrigerants, although HFC-134a, R407C, and R410A refrigerants have an ozone destruction coefficient (ODP) of 0, they have a high global warming coefficient (GWP), and are gradually being restricted. R32 (difluoromethane) refrigerant, as one of the chlorine-free HFCs and one of the candidate refrigerants with low GWP, has attracted the attention of the industry due to its enviro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C10M105/42C10M171/00C10M169/04C07C67/08C07C69/33C10N30/06C10N30/02C10N40/30C10N20/02C10N30/12
CPCC10M105/42C10M171/008C10M169/04C07C67/08C07C69/33C10M2207/026C10M2207/042C10M2215/223C10M2223/041C10M2207/2835C10M2207/301
Inventor 胡余生郭小青徐嘉史正良林新俊黄毓华
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com