Patent ID: 8695481
Filing Date: 2014-04-15
Classification: A47J

Abstract:
1. A hot water supplying device for coffee machines, comprising: a condensation chamber having at least one output duct for supplying hot water; a first duct arranged for injecting water or steam at a first temperature and at a first flow rate into said chamber; a second duct arranged for injecting water at a second temperature much lower than the first temperature and at a second flow rate into said chamber; interception means applied to at least one of said ducts and arranged for supplying at least a certain amount of water, by intercepting or not intercepting the water injection through said at least one of said ducts by time periods of interception or not interception in a certain time interval of a working cycle; a control unit, including executable program logic, and connected to said interception means, to perform: calculating, on the basis of a minimum reference amount and of said first and second flow rate, said time periods of interception or not interception and said certain time interval of the working cycle on the basis of supply parameters comprising at least different temperature values of the water to be supplied by the output duct; commanding said interception means according to said calculated time periods of interception or not interception and said certain time interval of the working cycle; repeating said working cycle until a supply interruption is operated.