| 摘要 |
The invention relates to an espresso machine, wherein water in the boiler (1) is superheated and kept at a temperature above 100 DEG C. for producing steam to be supplied to a dispenser nozzle (10), which superheated water is mixed with cold water at a mixing station (12), to obtain hot water having a temperature below 100 DEG C., supplied to the coffee brewing unit (13) and to the dispenser nozzle (10). According to the invention, the coffee brewing unit (13) is attached to the lower side of the boiler (1) and is connected to the mixing station (12) by means of a feed pipe (14), which is at least partly housed in the boiler (1). In the pipe (4) for feeding cold water to the boiler (1), a non return valve (16) is provided, which opens in the direction of flow into the boiler and is situated downstream from the branch point of the pipe (11) for feeding cold water to the mixing station (12).
|
