METHOD FOR OPERATING A PNEUMATIC DEVICE FOR THE METERED DELIVERY OF A LIQUID AND PNEUMATIC DEVICE

摘要

THE INVENTION CONCERNS THE OPERATION OF A PNEUMATIC DEVICE (1) FOR THE METERED DELIVERY OF A LIQUID AND A PNEUMATIC DEVICE PARTICULARLY SUITED FOR OPERATION IN ACCORDANCE WITH THE INVENTION. THE PNEUMATIC DEVICE HAS A PRESSURE TANK (8) THAT CAN BE CONNECTED TO A COMPRESSED AIR SOURCE BY MEANS OF AN INLET VALVE (10) AND WITH THE SURROUNDINGS BY MEANS OF AN OUTLET VALVE (11). FOR DELIVERY OF THE LIQUID, A PRESSURE PULSE IS APPLIED TO THE LIQUID CONTAINER (4) CONTAINING THE LIQUID IN THAT THE PRESSURE TANK (8) IS TEMPORARILY CONNECTED TO THE LIQUID CONTAINER (4) VIA A CHANGEOVER VALVE (17). AFTER THE END OF THE PRESSURE PULSE, THE PRESSURE PREVAILING IN THE PRESSURE TANK (8) IS INCREASED TO A VALUE THAT IS GREATER THAN THE SET VALUE TO BE ACHIEVED DURING THE PRESSURE PULSE. (FIG. 1)