Patent ID: 6892900
Filing Date: 2005-05-17
Classification: F16K,G05D,Y10T

Abstract:
1. A valve for a liquid or gaseous medium comprising a movable valve body, by way of which the internal through-flow cross-section is adjustable, wherein the valve has a pressure sensor for detecting the pressure P (act) of the medium, wherein the detected pressure P (act) is passed from the pressure sensor in the form of electrical signals and is supplied to a regulating device whose regulator operates the valve body in dependence on the signal from the pressure sensor, wherein the regulating device ascertains a pressure reference value P (ref) which it presets for its regulator, wherein viewed in the through-flow direction, the pressure sensor is arranged downstream of the valve body and the stem of the valve body is operatively connected at the drive side to a pressure chamber, wherein the pressure chamber is connected by way of a conduit or a through-flow opening to the intake-side volume flow of the liquid or gaseous medium and is acted upon thereby with pressure.