A coffee machine having water heating means, a pump for supplying water into the heating means and a dispensing unit for extracting the coffee with the heated water is described. The heating means include a tubular element inside which the water supplied by the pump flows, and a heating element, sep
A coffee machine having water heating means, a pump for supplying water into the heating means and a dispensing unit for extracting the coffee with the heated water is described. The heating means include a tubular element inside which the water supplied by the pump flows, and a heating element, separated from the tubular element by an air cavity; the pump and the heating element are connected and regulated by an electronic board, so as to supply into the dispensing unit the heated water in at least two different modes and at a same preset temperature, the different modes corresponding to different types of coffee to be dispensed.
대표청구항▼
1. A coffee machine, comprising: a water heater;a pump configured to supply water into the water heater; anda dispensing unit configured to extract coffee with the heated water;wherein the water heater includes: a tubular element inside which the water supplied by the pump can flow; anda heating ele
1. A coffee machine, comprising: a water heater;a pump configured to supply water into the water heater; anda dispensing unit configured to extract coffee with the heated water;wherein the water heater includes: a tubular element inside which the water supplied by the pump can flow; anda heating element separated from the tubular element by an air cavity;wherein: the pump and the heating element being connected and regulated by an electronic board so as to supply into the dispensing unit the heated water in at least two different modes and at a same preset temperature, the different modes corresponding to different types of coffee to be dispensed;the tubular element is made of steel, and has a length of between 15 cm and 25 cm and diameter of between 0.5 cm and 2 cm; andthe tubular element is disposed inside an outer tube of diamagnetic insulating material, with a diameter of between 3 cm and 5 cm, the heating element is wound in a spiral about the outer tube. 2. The coffee machine according to claim 1, wherein the electronic board is configured to regulate a flowrate of water from the pump, the flowrate being higher for dispensing coffee in a first dispensing mode and lower for dispensing coffee in a second dispensing mode. 3. The coffee machine according to claim 2, wherein the electronic board is programmed to supply into the dispensing unit at least two different amounts of heated water including a greater amount and a smaller amount corresponding, respectively, to the first and second dispensing modes. 4. The coffee machine according to claim 2, wherein the dispensing unit includes at least two outlets for heated water, which can be selectively associated with the first and second dispensing modes. 5. The coffee machine according to claim 1, wherein the dispensing unit includes a coffee container and a coffee container holder. 6. The coffee machine according to claim 5, wherein the coffee container is a powder coffee filter container. 7. The coffee machine according to claim 5, wherein the coffee container is a pod or a capsule for espresso or a capsule for Americano coffee (K-cup), and wherein the dispensing unit includes an adaptor configured to adapt the container holder to the pod or capsule. 8. The coffee machine according to claim 5, wherein the dispensing unit includes a mechanical valve configured to increase a pressure of the heated water inside the coffee container. 9. The coffee machine according to claim 8, wherein the mechanical valve is inside an adaptor. 10. The coffee machine according to claim 4, wherein an adaptor with mechanical valve is applied to at least one of the outlets. 11. The coffee machine according to claim 1, wherein the preset temperature is between 92° C. and 94° C. 12. The coffee machine according to claim 1, wherein the different dispensing modes correspond to different types of coffee to be dispensed including, respectively, espresso coffee and Americano coffee. 13. The coffee machine according to claims 4, further comprising an electrovalve connected to the electronic board, the electrovalve configured to intercept the fluid towards one of the outlets. 14. The coffee machine according to claim 1, wherein the dispensing unit includes a temperature sensor connected to the electronic board, the temperature sensor is configured measure a temperature of the water downstream of the tubular element. 15. The coffee machine according to claim 1, further comprising a flowmeter situated along the fluid path between the pump and the water heater and connected to the electronic board, the flowmeter is configured to measure a water flowrate towards the water heater. 16. A coffee machine, comprising: a water heater;a pumping system configured to supply water into the water heater; anda dispensing unit configured to extract coffee with the heated water;wherein the water heater includes:a plurality of tubular elements inside which the water supplied by the pumping system can flow; anda plurality of heating elements corresponding to the plurality of tubular elements and separated from the plurality of tubular elements by respective air cavities;wherein the pumping system includes a plurality of pumps, each of the plurality of pumps being associated with a respective one of the plurality of heating elements, and the plurality of pumps and the plurality of heating elements are connected and regulated by an electronic board so as to supply the heated water into the dispensing unit;wherein the dispensing unit including a plurality of outlets, each of the plurality of outlets being associated with a respective heating element through which the coffee may be dispensed:substantially simultaneously and at a same preset temperature, in different modes corresponding to different types of coffee to be dispensed, or in a same mode; orselectively at the preset temperature, in one or more selected outlets, in one mode or in different modes, corresponding to different types of coffee to be dispensed. 17. The coffee machine according to claim 16, wherein the electronic board is programmed to supply into the dispensing unit at least two different amounts of heated water including a greater amount and a smaller amount corresponding, respectively, to the first and second dispensing modes. 18. The coffee machine according to claim 16, wherein the dispensing unit includes at least two outlets for heated water, which can be selectively associated with the first and second dispensing modes. 19. The coffee machine according to claim 16, wherein the dispensing unit includes a coffee container and a coffee container holder. 20. The coffee machine according to claim 19, wherein the dispensing unit includes a mechanical valve configured to increase a pressure of the heated water inside the coffee container. 21. A coffee machine, comprising: a water heater;a pump configured to supply water into the water heater; anda dispensing unit configured to extract coffee with the heated water;wherein the water heater includes: a tubular element inside which the water supplied by the pump can flow; anda heating element separated from the tubular element by an air cavity;wherein: the pump and the heating element being connected and regulated by an electronic board so as to supply into the dispensing unit the heated water in at least two different modes and at a same preset temperature, the different modes corresponding to different types of coffee to be dispensed;the tubular element is disposed inside an outer tube of diamagnetic insulating material, the heating element is wound in a spiral about the outer tube. 22. The coffee machine according to claim 21, wherein the electronic board is configured to regulate a flowrate of water from the pump, the flowrate being higher for dispensing coffee in a first dispensing mode and lower for dispensing coffee in a second dispensing mode.
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이 특허에 인용된 특허 (7)
Vitous Charles J. (Berwyn IL), Coffee brewer apparatus.
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