Patent ID: 7907835
Filing Date: 2011-03-15
Classification: A47J,F24H

Abstract:
1. Device for heating a fluid for preparing hot beverages, comprising a body comprising a duct for circulating a fluid, the duct having a fluid inlet and a fluid outlet and being associated with at least one electrical heating body, a supply of power to which is controlled by a switch connected to a control; the duct comprising at least first and second duct portions joined together by a third duct portion forming a connecting conduit; the first and second duct portions each being associated with at least one heating body; the connecting conduit being associated with an intermediate temperature sensor connected to the control; the intermediate temperature sensor measuring a temperature of the fluid flowing through the conduit; a flow meter measuring the amount of fluid passing through the duct and the control and switch controlling the heating body of the second duct portion according to an amount of energy that needs to be supplied in the second duct portion in order to bring the fluid that is to be heated from an intermediate temperature measured by the intermediate temperature sensor up to a reference temperature at an outlet of the device; the amount of energy being calculated by the control as a function of the amount of fluid measured by the flow meter, of the intermediate temperature measured and of the reference temperature at the outlet of the device, and the amount of energy being distributed to the heating body of the second duct portion by the control and switch at determined time intervals.