| 摘要 |
<p>The invention concerns a brewing unit comprising a body (10) with a longitudinal axis (V) containing an infusion chamber (31) capable of receiving a pressing plunger (62) mounted mobile along the axis (V) by means of a drive mechanism (59), pumping means (40) for circulating water and brew, and a boiler (60) for heating the water for the preparation of the brew in the chamber (31). The invention is characterised in that the boiler (60) and the body (10) are formed in one single piece made of a heat conducting material with heating electrical resistance (26), water heating and passage channels (30) whereof the inlets (33) are connected to a cold water reservoir (R) and the ends (33') emerge in the brewing chamber (31); and the pressing plunger (62) has a conduit (42) for the passage of the brew emerging through an outlet (42b), whereas the pumping means (40) are adapted to generate an ascending circulation of water in the brewing chamber (31) towards the conduit (42). The invention is applicable in particular to espresso coffee brewing machines.</p> |
