| 摘要 |
A device for the distrihution under pressure of the hot water in coffee-machines, in particular for the water feeding to the chamber containing the coffee powder, the filtering of the obtained coffee infusion and its coming out.
<??>The hot water under pressure, fed by the pipe (5), passes through the hole (6) overcoming the action of a nonreturn valve (10) and is brought into the delivering chamber (2) on the below coffee powder (14) through duct (8) and the port (13) as well as through the port (12) of the hole (9) respectively.
<??>When the infusion is already partially obtained, it is pushed to pass through the crown betiveen the filtering disk (15) and the delivering chamber (2) and through the crown between the hole (16) and the shutting element (17), being the total passing surface of the infusion equivalent to the optimum surface of the usual filters. |
