Hydraulic control arrangement for supplying pressure medium to load, has spring arrangement with steeper gradient of spring characteristic after defined stroke than at start of control movement

摘要

The arrangement has a control valve with a sliding element in a bore (138) with which at least one working connection (A,B) can be connected to a pressure (P) or tank (T) connection and that is biased into a base position by a spring arrangement with a progressive spring characteristic in both action directions. The gradient of the spring characteristic is steeper after a defined stroke than at the start of control movement.