Hydraulic control system with pressure governor and differential pressure valve

摘要

The system has a differential pressure valve with longitudinal slide with a mechanical pressure spring acting on the second slide face. The valve (70) contains an additional mechanical spring, acting on the first end face (101) of the slide (100). The spring creates a new, second, spring-centred, blocking central slide position. In a third system position, the system pressure is deflected to the spring-loaded consumer pressure side of the pressure governor (50). The valve may be connected to a pressure governor parallel to a measuring throttle, and a governor switched in series with a measuring throttle.