Lubricants for refrigeration compressors

Details Lubricants for refrigeration compressors Lubricants for refrigeration compressors

1989-01-10

1989-07-25

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252565, 252 67, 252 68, C10M10534, C10M10536

Patent

active

048511447

ABSTRACT:
Lubricant base compositions for compression refrigeration are composed of 95 to 5% by weight of polyether polyols having a number average molecular weight from about 400 to about 5000 and 5 to 95% of esters made from polyhydric alcohols with alkanoic acids or esters made from alkanedioic acids with alkanols. A refrigeration fluid is made from the base composition with the addition of selected hydrochlorofluorocarbons and hydrofluorocarbons so that the base composition is miscible with the refrigerant in the range from -20.degree. C. to greater than 65.degree. C.

REFERENCES:
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patent: 4501616 (1985-02-01), Fink et al.
patent: 4751012 (1988-06-01), Ward
patent: 4755316 (1988-07-01), Magid et al.
Research Disclosure 17463; Research Disclosure Oct. 1978.
H. H. Druse et al. "Fundamentals of Lubrication in Refrigerating Systems and Heat Pumps" pp. 763-783, ASHRAE Transactions vol. 90, Part 2B, 1984.
K. S. Sanvordenker et al. "A Review of Synthetic Oils for Refrigeration Use" ASHRAE Symposium, Nassau, Jun. 29, 1972.

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