Railway lubricating oil

Details Railway lubricating oil Railway lubricating oil

1988-01-14

1989-04-11

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252565, 252 5, C10M10538

Patent

active

048204315

ABSTRACT:
Disclosed is a lubricating oil composition for enhanced protection against silver wear in railway diesel engines which is formulated with no chlorinated hydrocarbons or with reduced levels thereof. The composition comprises a silver protective compound selected from the group consisting of (1) C.sub.8 to C.sub.22 fatty acid esters of C.sub.1 to C.sub.12 polyhydroxy alcohols or mixtures of such esters, wherein the alcohol portion of the ester has at least two unesterified hydroxyl groups; and (2) a mixture comprising the polyhydroxy compound of (1), above, and a chlorinated paraffin.

REFERENCES:
patent: 3933659 (1976-01-01), Lyle et al.
patent: 4304678 (1981-12-01), Scheck et al.
patent: 4505829 (1985-03-01), Wisotsky
patent: 4734211 (1988-03-01), Kennedy

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