Synthetic break-in lubricant for a refrigeration compressor

Details Synthetic break-in lubricant for a refrigeration compressor Synthetic break-in lubricant for a refrigeration compressor

1995-06-07

1996-12-03

Howard, Jacqueline V.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic -co- compound

508481, 508482, 508496, C10M12952

Patent

active

055804837

ABSTRACT:
Certain organic diesters and triesters have been found to be useful as a break-in lubricant compressors used in conjunction with HFC-based refrigeration systems. These include compositions of the formula: R.sub.1 OOC--Q--COOR.sub.2, ##STR1## and mixtures thereof, wherein Q is a straight- or branched-chain hydrocarbon group having from 2 to 10 carbon atoms and R.sub.1, R.sub.2 and R.sub.3 can be the same or different and are straight- or branched-chain hydrocarbon groups containing from 6 to 13 carbon atoms. In use as a break-in lubricant, the break-in lubricant is added and the compressor is run for about 1 to 4 hours. This lubricant is then drained.

REFERENCES:
patent: 4755316 (1988-07-01), Magid et al.
patent: 4948525 (1990-08-01), Sasaki et al.
patent: 5342533 (1994-08-01), Kondo et al.
patent: 5391311 (1995-02-01), Ishida et al.
patent: 5391313 (1995-02-01), Antika et al.
patent: 5395544 (1995-03-01), Hagihara et al.
patent: 5452586 (1995-09-01), Hamid

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