HYDRAULIC ARRANGEMENT COMPRISING HYDRAULIC SYSTEMS

Patentradars sammanfattning

The invention from Steelwrist AB describes a pressure-compensated hydraulic arrangement comprising multiple hydraulic systems, each with a proportional flow control valve and a main spool valve assembly controlling individual actuators. A central method collects actuator pressure signals, identifies the highest load-sense pressure (PLS), adds the highest set differential pressure (DPset) across any proportional flow control valve, and commands a pressure relief valve to open when supply pressure P exceeds PLS+DPset. This electronic load-sensing approach replaces complex mechanical compensation networks, reducing component count, heat losses, and energy consumption particularly relevant for electrified construction machinery such as tilt rotators.

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