The present invention relates to a beverage production device for preparing a liquid comestible from a portioned food substance contained in a sealed capsule. The device includes a centrifugal unit for receiving the sealed capsule, a driving mechanism connected to the centrifugal unit for enabling a
The present invention relates to a beverage production device for preparing a liquid comestible from a portioned food substance contained in a sealed capsule. The device includes a centrifugal unit for receiving the sealed capsule, a driving mechanism connected to the centrifugal unit for enabling a rotational motion of the centrifugal unit, a liquid supply connected to the centrifugal unit, a flow rate or pressure measuring mechanism for the supplied liquid and a controller for controlling the rotational speed of the driving mechanism dependent on the measured flow rate or the measured pressure of the liquid.
대표청구항▼
1. A beverage production device for preparing a liquid comestible from a portioned food substance contained in a capsule or cell, comprising: a centrifugal unit for receiving the capsule or cell,driving means connected to the centrifugal unit for providing a rotational motion of the capsule or cell
1. A beverage production device for preparing a liquid comestible from a portioned food substance contained in a capsule or cell, comprising: a centrifugal unit for receiving the capsule or cell,driving means connected to the centrifugal unit for providing a rotational motion of the capsule or cell in the centrifugal unit,liquid supply means being connected to the centrifugal unit to supply liquid in the capsule or cell,means for measuring (1) the flow rate of the liquid that is to be supplied to the capsule or cell, or (2) the pressure of the liquid in the capsule or cell, anda control unit operatively associated with the measuring means for controlling one of the flow rate or pressure to match a flow rate reference or a pressure reference, respectively, in a control loop by automatically adjusting the rotational speed of the driving means during an extraction phase of the beverage production depending on the measured flow rate or the measured pressure. 2. The beverage production device according to claim 1, wherein the control unit controls the flow rate and the reference flow rate is a constant set point or a variable profile of flow rates stored in or calculated by the control unit. 3. The beverage production device according to claim 2, wherein the control unit is arranged for selecting or calculating different flow rate set points corresponding to respectively different beverage strengths. 4. The beverage production device according to claim 3, which further comprises a manual interface configured to enable at least a selection of the strength of the beverage during the beverage production process and the volume of the beverage to be prepared. 5. The beverage production device according to claim 3, which further comprises identification means for receiving information from a capsule code as to the strength or volume of the beverage to be prepared. 6. The beverage production device according to claim 1, wherein the liquid supply means comprises a pump which is designed for supplying fluid to the centrifugal unit and which is operated by the control means. 7. The beverage production device according to claim 1, wherein the centrifugal unit is designed to act as a centrifugal pump by drawing water from the liquid supply means. 8. The beverage production device according claim 2, wherein the control means is designed to detect electrical impulses of the flow meter in order to calculate the flow rate and the dispensing volume during the beverage production. 9. The beverage production device according to claim 8, wherein the means for measuring the flow rate is a pulse-coded flow metering turbine. 10. The beverage production device according to claim 1, wherein the control unit is arranged to control an extraction profile comprising at least a pre-wetting phase and an extraction phase which differ in at least the associated rotational speeds of the driving means. 11. The beverage production device according to claim 2, which further comprises flow restriction means at a delivery side of the centrifugal unit. 12. The beverage production device according to claim 11, wherein the flow restriction means comprises a valve. 13. The beverage production device according to claim 12, wherein the valve is adjustable. 14. A system for producing a beverage from portioned ingredients provided within a capsule, the system comprising: a beverage producing device having a centrifugal unit comprising at least two enclosing members for enclosing the capsule by a relative movement of the enclosing members,driving means connected to the centrifugal unit for enabling a rotational motion of the centrifugal unit,a liquid injection assembly designed to interact with the capsule provided to the device and connected to liquid supply means,means for measuring one of (1) the flow rate of the liquid that is to be supplied to the capsule or cell, or (2) the pressure of the liquid in the capsule or cell, andcontrol means operatively associated with the measuring means for controlling the flow rate or pressure to match a flow rate reference or the pressure reference in a control loop by automatically adjusting the rotational speed of the driving means during an extraction phase of the beverage production depending on the measured flow rate or measured pressure,wherein the capsule is designed to be removably inserted into the centrifugal unit of the device. 15. The system according to claim 14, wherein the capsule is a single-use capsule sealed in a protective atmosphere before use. 16. The system according to claim 14, wherein the capsule contains ground coffee, soluble coffee, tea, cocoa or milk. 17. A method for preparing a liquid comestible from a portioned food substance contained in a capsule or cell by passing liquid through the substance using centrifugal forces, which comprises: connecting the capsule or cell to a liquid supply,rotating the capsule or cell about its rotational axis to enable an interaction between the liquid and the portioned ingredients provided within the capsule,controlling one of (1) the flow rate of the liquid that is to be supplied to the capsule or cell, or (2) the pressure of supplied liquid in the capsule or cell to match a flow rate reference or a pressure reference in a control loop by automatically adjusting the rotational speed of the capsule or cell during the extraction phase of the beverage production based upon the measured flow rate or measured pressure. 18. The method according to claim 17, wherein the flow rate is controlled and the controlling is carried out in relation to a selection of the strength of the beverage. 19. The method according to claim 17, wherein the level of crema or foam of the beverage can be controlled by adjusting the load on a flow restriction valve at the exit of the capsule or cell.
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이 특허에 인용된 특허 (32)
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