Patent ID: 6026730
Filing Date: 2000-02-22
Classification: E02F,F15B

Abstract:
A pressurized fluid flow control apparatus in a hydraulic circuit in which a hydraulic pump has a discharge path that is provided with a plurality of directional control valves in parallel to one another, each of whose outlet side is connected via a pressure compensation valve to a hydraulic actuator, respectively, and in which each of the pressure compensation valves is adapted to be set under a discharge pressure of said pump and a maximum of load pressures of the hydraulic actuators,characterized in thatsaid discharge path of the hydraulic pump is provided with an auxiliary directional control valve whose outlet side is connected via another pressure compensation valve to one of said hydraulic actuators that is in turn connected to a particular one of said directional control valves, and said another pressure compensation valve is adapted to be set under the discharged pressure of said pump and the maximum of load pressures of the hydraulic actuators.