| 摘要 |
Dispensing unit for the automatic preparation and dispensing of coffee, comprising a cylindrical body (2) with an infusion chamber (3) for containing a specified measured quantity of grounded coffee, with a closed base (8) provided with an opening (9) for dispensing the prepared beverage, and provided with an open top (7), and a pistonlike body (1) provided with a channel (13) for supplying heated pressurized water to the said chamber (3) for preparing the beverage, the said pistonlike body (1) being movable in a reciprocating way with respect to the said cylindrical body (2) to close and open the said chamber (3) by moving into and out of the said cylindrical body. The channel (13) of the pistonlike body (1) is provided with insulating means (19) made from materials having a low heat transfer coefficient so as to reduce the conduction towards the said pistonlike body (1) of the heat of the measured quantity of water flowing through the said channel.
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