SOURCE OF HYDRAULIC SUPPLY FOR HYDRAULIC SYSTEMS Russian patent published in 1994 - IPC

FIELD: hydraulics. SUBSTANCE: pump with valve distribution is connected to delivery main of hydraulic system and has working chamber with pistons. One piston is linked with reciprocating motion drive. Second piston is loaded with flexible member and is linked with rod of displacer of accumulator which has rod chamber. Flexible member is made in form of spring mounted for direct contact with piston. Rod chamber of accumulator is connected to delivery main of hydraulic system. Connection of rod with second piston is effected by means of wedge mechanism which has groove in piston body and wedge linked with rod. EFFECT: enhanced reliability. 1 dwg