Система керування регульованим насосом

Abstract

A system for control of variable-capacity pump includes controlled pump with control hydraulic cylinder that is connected to feeding hydraulic line and control hydraulic line, suction hydraulic line, discharge hydraulic line in which control valve is installed. A feed regulator with spring connected at same time by discharge hydraulic line to the variable-capacity pump, by hydraulic line of load pressure to control valve, by hydraulic line of feed regulator through control hydraulic line to control hydraulic cylinder, and by additional hydraulic line through drain hydraulic line to hydro-tank. The control hydraulic line through throttle is connected to the drain hydraulic line. Besides that, a pressure controller is included, this has a body recess placed between coaxial discharge and spring chambers, and a cup-like spool with spring mounted by open side to the discharge chamber, in the cup-like spool from the side of the discharge chamber a through slot is provided, with sections of different widths a and b.