HYDRAULIC SYSTEM Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: single-space and double-space motors are in communication with the delivery and drain hydraulic lines through a dispenser having spring-loaded slide valves. The slide valves are provided with locators which are hydraulically controlled by the pressure drop at the throttle mounted in the line between the delivery hydraulic line and the inlet of the safety valve. The flow rate pickup is mounted in the drain hydraulic line. The inlet of the double-position two-linear valve is connected with the inlet of the safety valve. The inlet of the second double-position two-linear valve is connected with the outlet of the first valve, and the outlet of the valve is connected with a tank. The second valve is controlled by the pressure drop at the flow rate pickup. The control space of the first valve is connected to the delivery hydraulic line. EFFECT: enhanced reliability. 1 dwg