Device and method for heating water in a machine for making and dispensing drinks
AssigneeRHEAVENDORS SERVICES S.p.A
InventorCarlo Doglioni Majer
Life of this patent
Estimating the term…
Abstract
A device for heating water in a machine for making and dispensing beverages is provided. The device includes at least one heating metallic duct and a winding of electromagnetic induction. The device is part of a heating and feeding assembly wherein, by a logical unit, it is possible to carry out a method in which, for every beverage type the machine can dispense, the temperature of heated water is led to a specific temperature value that can be selected by the user.
Claims19
An apparatus comprising a machine for preparing and dispensing beverages,
- said machine including a device for heating water, said device comprising at least one metal duct for water flow between a duct inlet and a duct outlet and at least one winding of electromagnetic induction, wherein loops of said winding are wound around a spool made of an electrically insulating material having a cavity inside which said metal duct is housed, and wherein an outer surface of said metal duct and an inner surface of said spool are separated by an air gap inside said cavity, said air gap extending uninterrupted from said outer surface of said metal duct to said inner surface of said spool.
An assembly for supplying and heating water in a machine for preparing beverages, comprising at least one pump with a pump inlet and a pump outlet, a duct for water supply and an outlet duct, the assembly characterized by comprising a device for heating water in said machine, said device comprising at least one metal duct for water flow between a duct inlet and a duct outlet and at least one winding of electromagnetic induction, characterized in that loops of said winding are wound around a spool made of an electrically insulating material having a cavity inside which said metal duct is housed and in that said metal duct and said spool are at least partially separated by a gap inside said cavity,
- further comprising at least one separating chamber with at least one chamber inlet and one chamber outlet for the water, wherein said pump inlet is hydraulically connected with said chamber outlet and said pump outlet is hydraulically connected with said duct inlet.
An apparatus comprising a machine for preparing and dispensing beverages, said machine including a device for heating water and a recirculation system,
- said device comprising at least one metal duct for water flow between a duct inlet and a duct outlet and at least one winding of electromagnetic induction, wherein loops of said winding are wound around a spool made of an electrically insulating material having a cavity inside which said metal duct is housed and said metal duct and said spool are at least partially separated by an air gap inside said cavity that extends uninterrupted from said metal duct to said spool,
- said recirculating system including a temperature sensor for sensing a temperature of water exiting said duct outlet and a three way valve for directing said water exiting said duct outlet, to a separating chamber upstream from said at least one metal duct.
Dependencies are inferred from the claim text.