Mannesmann Rexroth Ag

Robert Boschgmbh

Werner Herfs

Michael Brand

Thomas Weickert

Jacques Maffini

Edwin Heemskerk

Mircea Chima

The invention concerns a hydraulic control circuit in which the pressure medium conveyed by a hydraulic pump of variable delivery (,) is fed, in each case via a metering aperture (,), as a priority to a first hydraulic consumer (,) and only secondly to a second hydraulic consumer (,). A priority control system is now produced without additional delivery losses and with sufficient amounts of pressure medium being conveyed in that the valve member (,) of the priority valve (,) can be acted upon in the closure direction of the connection between the first connection (,) and the second connection (,) by a pressure prevailing in a line section (,) upstream of the first metering aperture (,).

Growing community of inventors

Lohr/Main, Germany

Werner Herfs