Refrigerator oil for refrigerant

A technology for refrigerating oil and refrigerant, applied in the direction of cooler, application, additives, etc., can solve the problems of high flash point and difficulty, and achieve the effect of high flash point, small impact and good stability

Active Publication Date: 2009-09-30
JAPAN ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of combinations of aliphatic saturated branched monoalkyl carboxylic acid esters and fatty acid polyol esters is enormous, and it is neces

Method used

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  • Refrigerator oil for refrigerant
  • Refrigerator oil for refrigerant
  • Refrigerator oil for refrigerant

Examples

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Embodiment

[0081] Hereinafter, although this invention is demonstrated in more detail based on an Example and a comparative example, this invention is not limited to an Example.

[0082] In order to evaluate the present invention, refrigerating machine oils (test oils) for refrigerants of Examples and Comparative Examples were prepared. The base oil and additives used for the test oil are as follows.

[0083] base oil

[0084] Monoesters 1 to 8: Monoesters shown in Table 1

[0085] Table 1

[0086]

[0087] Polyol Ester 1 (PE-1): Valerate of Neopentyl Glycol (NPG)

[0088] Polyol Ester 2 (PE-2): Caproate of NPG

[0089] Polyol Ester 3 (PE-3): 2-Ethylhexanoate of NPG

[0090] Mineral oil 1 (MO-1): paraffinic lubricating oil base oil (40 ° C kinematic viscosity: 7.8mm 2 / s)

[0091] Mineral oil 2 (MO-2): paraffinic lubricating oil base oil (40 ° C kinematic viscosity: 5.2mm 2 / s)

[0092] Mineral oil 3 (MO-3): naphthenic lubricating oil base oil (40 ℃ kinematic viscosity: 5.0mm...

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Abstract

The invention provides a refrigerator oil for refrigerant used together with hydrogen containing Freon coolant without chlorine contained or hydrocarbon refrigerant without halogen atom and having smaller greenhouse effect, which has low viscosity, great stability. A refrigerator oil for refrigerant includes a monoester represented by a general formula (1) as a main component, has kinematic coefficient of viscosity lower than 7mm2/s under 40 DEG C.. In the formula, R[1] represents an alkyl group with 5-9 carbons, R[2] represents an alkyl group with 8-10 carbons, R[1] and R[2] being in branched chain or direct chain, and total carbon number being 13-17.

Description

technical field [0001] The present invention relates to a refrigerant compression type refrigerating cycle device which can be favorably used for refrigerants having a low ozone layer destruction coefficient and a low global warming coefficient, such as chlorine-free hydrogen-containing freon refrigerants and hydrocarbon refrigerants. Refrigerant oil for refrigerant. In addition, the present invention relates to a low-viscosity refrigerating machine oil having excellent energy saving properties, a working fluid for refrigerating machines and a refrigerator using the same. Background technique [0002] Conventionally, refrigerant compression refrigeration cycle devices used in refrigerators, air conditioners, refrigerators, etc. have been using, for example, R-11 (trichlorofluoromethane), R12 (dichlorodifluoromethane) and Freon, which uses fluorine and chlorine as constituent elements such as hydrochlorofluorocarbon (HCFC) R-22 (chlorodifluoromethane), is used as a refrigera...

Claims

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Application Information

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IPC IPC(8): C10M105/34C10M161/00C09K5/04F25D11/00C10N40/30
Inventor 高桥仁松本朋也
Owner JAPAN ENERGY CORP
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