Simplified load sensitive hydraulic system for use with a vehicle steering system

摘要

A simple load sensitive hydraulic system having a variable displacement pump, a priority dependent work circuit, at least one secondary work circuit, priority means preferencing fluid flow to the priority dependent work circuit over the secondary work circuit, flow and pressure compensating means responsive to requirements of either work circuit for controlling displacement of the variable displacement pump and a relief valve which when overridden allows fluid flow to the secondary work circuit.