| 摘要 |
FIELD: engines and pumps.SUBSTANCE: hydraulic system is intended for movement of working elements from one position to another. Hydraulic system comprises hydraulic fluid, which is contained and stored in reservoir for fluid medium, at least one electric hydraulic pump connected with reservoir for fluid delivery and suction, hydraulic fluid discharge, at least one mechanical hydraulic pump connected with reservoir for fluid delivery and suction, hydraulic fluid discharge, at least two check valves sequence each of which is connected to electric hydraulic pump and mechanical hydraulic pump, each of check valves sequence is normally open in first direction and prevents return of fluid in second direction, and double pressure valve, which is connected with tank for fluid and each of the check valves sequence for switching direction of hydraulic fluid output.EFFECT: prevention of sudden switching of movement of working members direction.11 cl, 2 dwg |
