| 摘要 |
A device (24) for preparing a hot beverage, especially coffee, includes a water reservoir (4), a heating unit (11) connected to the water reservoir (4), delivery elements (16) connected to the heating unit with a delivery opening (19) for delivering hot water to a container (20) which during use contains an extract from which a beverage is to be made, water transport elements (12, 14) for transporting water from the heating unit (11) to the delivery element (16), and an air supply conduit (27) for supplying air to the hot water. The air supply conduit (27) discharges in or near the delivery element (16), upstream of the container (20), for cooling the water to be delivered by the delivery element (16) to the container (20), wherein the hot water before cooling has a temperature of at least 95° C., preferably at least 97° C., more preferably a temperature around the boiling point. |
| 主权项 |
1. A device (24) for preparing a hot beverage, comprising:
a water reservoir (4); a heating unit (11) connected to the water reservoir (4), the heating unit (11) comprising a heating device (12); delivery means (16) connected to the heating unit with a delivery opening (19) for delivering hot water to a container (20) which during use contains an extract from which a beverage is to be made, the heating unit (11) being situated at a lower position than the delivery opening (19); water transport means (12, 14) for transporting water from the heating unit (11) to the delivery means (16), the water transport means comprising a discharge conduit (14) connected to the heating unit (11) and the delivery means (16), and the heating device (12) and the discharge conduit (14) configured to transport heated water through the discharge conduit (14) to the container (20) where the heated water, in use, is heated in the heating unit (11) to the boiling point to form vapor bubbles so that the vapor bubbles enter the discharge conduit (14) and transport the heated water to the delivery means (16); and an air supply conduit (27), for supplying air to the hot water, comprising an air pump (23) connected to a control unit (25) for controlling air flow, wherein the air supply conduit (27) discharges in the delivery means (16), in or near the delivery opening of the delivery means (16), and upstream of the container (20), such that the delivery means (16) discharge only an air/water-mixture from the delivery opening, wherein the container (20) for containing the extract from which a beverage is to be made is detached from the delivery means (16), wherein the delivery means (16) are arranged to discharge directly onto the extract in the container (20), wherein the hot water is cooled before being discharged from the delivery means (16), and a degree of cooling of the hot water is caused within the delivery means by air entering through the air supply conduit in or near the delivery opening before the water enters the container and before the water reaches the extract in the container, wherein the hot water before the cooling has a temperature of at least 95° C., wherein the air pump (23) is adjustable, via the control unit (25), so that, due to the air flow, the temperature of the hot water at the delivery opening (19) decreases by at least 1° C., and wherein the air flow of the air pump is adjustable by the manufacturer during production of the device or by a user via a control panel during operation of the device, so that the air flow and correspondingly the water temperature is adaptable to the type of beverage during preparation. |
