Monitoring device of the feed to an electric household appliance of an operative fluid, in particular of a flow of water to a tank of a washing machine or dishwasher

Abstract

A monitoring device including first detector means of a flow rate of operative fluid in an electric household appliance towards a tank of the electric household appliance and second detector means of the level of such a fluid in the tank; wherein the first and second detector means are operatively and reciprocally associated to issue a single signal (S) characterised by at least two different parameters, a first parameter (F) correlated to the flow rate of the fluid and a second parameter (A) correlated to the level of fluid in the tank. Typically, the first and the second detector means consist of a turbine mounted so as to be crossed in use by the flow of operative fluid and thereby turned at a speed proportional to the flow rate of fluid; in a membrane mounted within a casing to fluid-tightly divide the same into a first and second chamber connected respectively to atmospheric pressure and to siphon means arranged within the tank; in sensor means mounted on the membrane integral with the same and in interaction means with the sensor means, angularly and integrally mounted on the turbine and in a position so as to periodically transit in use in front of the sensor means in consequence of the rotation of the turbine.