초록 ▼

An arrangement for dosing fluids, such as beverages, comprising a flow meter arranged in the fluid dosing duct, an on-off valve arranged in the dosing duct downstream of the flow meter for releasing or cutting the flow of fluid, and an evaluation circuit that transmits a switching off control signal

An arrangement for dosing fluids, such as beverages, comprising a flow meter arranged in the fluid dosing duct, an on-off valve arranged in the dosing duct downstream of the flow meter for releasing or cutting the flow of fluid, and an evaluation circuit that transmits a switching off control signal (closing signal) to the on-off valve when a predetermined amount of fluid has passed through the flow meter. The flow meter and on-off valve are preferably an impeller flow meter and an electrically actuable on-off valve, respectively. In order to improve the dosing accuracy, a sensor is provided with the flow meter for sensing the speed of flow given, for example, by the frequency of rotation of the impeller and for supplying, to the evaluation circuit, a preferably electric sensor signal that corresponds to the speed of flow. The evaluation circuit supplies a preferably electric switching off signal to the on-off valve when the sensor signal either falls below a predetermined lower value or exceeds a predetermined upper value. Also disclosed is a beverage dispensing system provided with such a dosing arrangement.

대표청구항 ▼

[ What is claimed is:] [1.] A fluid dosing system comprising:a dosing line through which is to pass a stream of fluid;an on-off valve disposed in said line to open and close dosing of the fluid therefrom;a flow meter disposed in said dosing line at a position upstream of said valve for indicating a

[ What is claimed is:] [1.] A fluid dosing system comprising:a dosing line through which is to pass a stream of fluid;an on-off valve disposed in said line to open and close dosing of the fluid therefrom;a flow meter disposed in said dosing line at a position upstream of said valve for indicating a flow rate of fluid passing through said line;a sensor operable to detect the flow rate indicated by said flow meter and to generate a signal representative thereof; andevaluation means operably connected to said sensor for receiving said signal therefrom and operably connected to said valve for closing said valve when said signal falls below a predetermined lower value or exceeds a predetermined upper value.