Patent ID: 8661809
Filing Date: 2014-03-04
Classification: F15B

Abstract:
1. A method for operating a hydraulic system comprising the steps of: supplying a volumetric flow of pressurized fluid from at least one hydraulic pump to each of different hydraulic consumers via respective adjustable metering orifices depending on opening sizes thereof; controlling the supply of the volumetric flow of the pressurized fluid by selectively supplying respective pilot pressures to respective face sides of respective valve spools of directional control valves, to change the respective opening sizes of respective metering orifices; when at least one of the hydraulic consumers is undersupplied in volumetric fluid flow, sharing equally a deficit in the volumetric flow to the at least one hydraulic consumer with at least one other of the hydraulic consumers, by selectively supplying a synchronous pressure, generated by a synchronous compensator, to respective face sides of the respective valve spools of the at least one other of the hydraulic consumers, which reduces the opening size of the respective metering orifices of the at least one other of the hydraulic consumers; and one of selector valves and a hydraulic logic circuit selectively supplying the pilot pressure and the synchronous pressure to respective face sides of the respective valve spools.