Patent ID: 7975598
Filing Date: 2011-07-12
Classification: E02F,F15B

Abstract:
1. A hydraulic valve arrangement with a supply connection arrangement comprising a high-pressure connection and a low-pressure connection, a working connection arrangement comprising two working connections, which is connected to a motor, a directional valve arrangement located between the supply connection arrangement and the working connection arrangement, and a compensation valve acted upon in a first activation direction by a pressure in a first pressure chamber, which is connected to a load-sensing pipe, and in a second activation direction opposite to the first activation direction by a pressure downstream of the directional valve arrangement, said pressure downstream acting in a second pressure chamber, the compensation valve having an inlet and an outlet, wherein each working connection is connected to a control system, which amplifies the effect of the pressure in the first pressure chamber on the compensation valve in dependence of a pressure ruling at the working connection; wherein the control system pressure-relieves the second pressure chamber.