Hydraulic Fluid
hydraulic fluid
[hī′drȯ·lik ′flü·əd]Hydraulic Fluid
a fluid used in machines and mechanisms to transmit forces. Hydraulic fluids should have a high resistance to oxidation, low frothing, inertness with respect to materials in the components of hydraulic systems, a flat viscosity curve, a low freezing point, and a high flash point. The petrochemical industry produces over 20 kinds of oils that are used in hydraulic systems (see Table 1).
Certain industrial and motor oils are utilized in a number of cases as hydraulic fluids. The majority of hydraulic fluids contain antioxidants, antifoamants, and other additives.
REFERENCE
Nefteprodukty: Spravochnik. Edited by B. V. Losikov. Moscow, 1966.Motornye i reaktivnye masla i zhidkosti, 4th ed. Edited by K. K. Papok and E. G. Semenido. [Moscow, 1964.]
N. G. PUCHKOV