Hydraulic fluid system

Details Hydraulic fluid system Hydraulic fluid system

1974-02-11

1976-05-11

Pitlick, Harris A.

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 498, 252 56R, 252 79HF, C09K 300, C10M 340

Patent

active

039561542

ABSTRACT:
An aircraft hydraulic fluid comprising (1) a base stock material, and (2) a low molecular weight polyester additive consisting of C.sub.2 -C.sub.18 dicarboxylic acid and a C.sub.2 -C.sub.18 diol. By incorporating about 1 to about 20 percent by weight of said additive in said hydraulic fluid, an essentially shear stable hydraulic fluid results.

REFERENCES:
patent: 2542785 (1951-02-01), Walker
patent: 3513097 (1970-05-01), Langenfeld
patent: 3629114 (1971-12-01), Fairing
patent: 3637507 (1972-01-01), Gentit

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