HYDROPNEUMATIC ACCUMULATOR AND METHOD OF CHANGING IT Russian patent published in 1999 - IPC

Abstract RU 2133887 C1

FIELD: hydraulic system at varying working pressures. SUBSTANCE: hydropneumatic accumulator includes first compensator having hydraulic and pneumatic cavities separated by divider. Subsequent compensators have pneumatic cavities and are connected with pneumatic of first compensator through bores of spool valve, thus increasing the charging pressure. Relative mean pressure and charging pressure are determined by point of curve (for example, polytropic curve P_o•Vno

= Const at exponent "n") in whose zone working range is determined. EFFECT: reduced overall dimensions and mass; enhanced reliability. 6 cl, 2 dwg

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RU 2 133 887 C1

Authors

Deev O.I.

Deev S.O.

Deeva T.O.

Deev P.N.

Dates

1999-07-27—Published

1997-10-01—Filed