| 摘要 |
The invention relates to a device for influencing a flow-medium pressure prevailing in an elastic line (1) through which flow takes place, having at least one detector (6 and/or 7) for determining the pressure prevailing within the line (1), and having an elastic hose (2) which can be looped closely around the line (1) and, via an inlet valve (3), can be provided, by a pressure-medium source (4), with a pressure medium, preferably compressed air, the hose (2) constricting the line (1), and it being possible to discharge, via a discharge valve (5), the pressure medium which has been let into the hose (2). For a rapid and precise response capacity along with an extremely simple structure, said device is designed either such that the inlet valve (3) and/or the outlet valve (5) is or are formed by a valve or valves with a continuously changeable throughflow rate, or such that signals derived from the measurement values of the detector (6 and/or 7) or of the detectors (6, 7) are fed back to the inlet and/or outlet valve (3 and/or 5) preferably in a modulated and/or amplified form in order to regulate the flow-medium pressure and/or the pressure drop at the location of the elastic hose (2) which is looped around the line (1). <IMAGE> |
