Lastdruckunabhängiges, hydraulisches System

摘要

A load sensing hydraulic system comprises two pump means (6,7), at least one hydraulic fluid consumer (3) and a pressure balance circuit (A), wherein a) in the case of no demand from the consumers hydraulic fluid flows from the pumps through the pressure balance and to tank; b) in the case of demand from the consumers for hydraulic fluid at a flow rate less than or equal to the flow rate provided by the first pump, hydraulic fluid from the first pump (6) flows to the consumers, and hydraulic fluid from the second pump (7) flows to tank; and c) in the case of a demand from the consumers for hydraulic fluid at a flow rate greater than the capacity of the first pump, hydraulic fluid from both pumps flow to the consumers.