HYDRAULIC DRIVE Russian patent published in 2003 - IPC

Abstract RU 2220334 C1

FIELD: hydraulic drives. SUBSTANCE: proposed hydraulic drive includes pump, actuating member connected with pump by means of pressure hydraulic line and two-position four-line hydraulic distributor whose control cavity is connected to pressure hydraulic line ; drive is also provided with one-sided hydraulic lock fitted in pressure hydraulic line after connection of hydraulic distributor; hydraulic distributor is differential and its control cavity is brought in communication with spring cavity through throttle valve and with control cavity of hydraulic lock through hydraulic distributor lines; it is also communicated with pressure hydraulic line from hydraulic lock to actuating member. Hydraulic lock may be provided with adjusting screw on side of control cavity for engagement with piston of hydraulic lock. EFFECT: reduced losses of working fluid. 2 cl, 2 dwg

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RU 2 220 334 C1

Authors

Ivantsov M.V.

Dates

2003-12-27—Published

2002-04-15—Filed