초록 ▼

A coffee machine, particularly an espresso machine, comprising a brewing device (6) for producing and dispensing coffee via a coffee dispensing nozzle (11), as well as a hot water boiler (2) having a fresh water supply line (1) and a hot water line (10) coming out into a brewing chamber (5) of the b

A coffee machine, particularly an espresso machine, comprising a brewing device (6) for producing and dispensing coffee via a coffee dispensing nozzle (11), as well as a hot water boiler (2) having a fresh water supply line (1) and a hot water line (10) coming out into a brewing chamber (5) of the brewing device (6), and a control unit (4). The coffee dispensing is controllable by said control unit (4). A heating element (13) is disposed on the hot water line (10) between the hot water boiler (2) and the brewing chamber (5), by means of which heating element the water flowing from the hot water boiler (2) into the brewing chamber (5) is able to be brought to brewing temperature. The brewing temperature can thereby be maintained at a virtually constant value whereby improving the quality of the coffee dispensed.

대표청구항 ▼

The invention claimed is: 1. Coffee machine for producing and dispensing coffee beverages, in particular an espresso machine, which has a housing in which are disposed at least one brewing device (6), a container (26) for coffee beans, a grinding device (25) connected to this container (26), a feed

The invention claimed is: 1. Coffee machine for producing and dispensing coffee beverages, in particular an espresso machine, which has a housing in which are disposed at least one brewing device (6), a container (26) for coffee beans, a grinding device (25) connected to this container (26), a feed hopper (26) for feeding the ground coffee into a brewing chamber (5) of the brewing device (6), a stripper (28) for the leached ground coffee, at least one hot water boiler (2) having a fresh water supply line (1) and a hot water line (10) coming out into the brewing chamber (5) of the brewing device (6), a coffee dispensing nozzle (11) and a control unit (4) by means of which the dispensing of coffee is controllable, characterized in that between the hot water boiler (2) and the brewing chamber (5) a heating element (13) is disposed on the hot water line (10), with which element the water flowing from the hot water boiler (2) into the brewing chamber (5) is able to be brought to brewing temperature, and in that the hot water line (10), on which the heating element (13) is disposed, is equipped with means (9, 18) for draining off the residual water, said heating element (13) comprising a body (14) composed of a material able to conduct heat, through which the hot water is able to be led, and in which a temperature-controllable heating (15) and a temperature sensor (16) are integrated, said heating element (13) being installed in the immediate vicinity of the brewing chamber (5) after a valve (9), with which the supply of warm water into the brewing chamber (5) is controllable for producing coffee and which is disposed in the hot water line (10), between the hot water boiler (2) and the brewing chamber (5). 2. Coffee machine according to one of the claim 1, characterized in that the means of draining off the residual water in the hot water line (10) are formed by the valve (9), to which valve a residual water drain-off line (18) is added, whereby the hot water line (10) running between the valve (9) and the brewing chamber (5) is able to be connected to the residual water drain-off line (18) and emptied by switching the valve (9). 3. Coffee machine according to one of the claim 1, characterized in that a temperature sensor (17), with which the temperature of the hot water is determinable, is disposed in the region of the exit of the hot water line (10) from the heating element (13). 4. Coffee machine according to claim 3, characterized in that the temperature sensor (17) is connected to the control unit (4), by means of which the heating (15) of the heating element (13) is controllable according to the temperature measured. 5. Coffee machine according to one of the claim 1, characterized in that the heating (15) of the heating element (13) is able to be activated according to parameter values, which parameter values are storable in memory means (29) provided in the control unit (4).