AUTOMATIC COFFEE MACHINE WITH DEVICE FOR CLEANING COFFEE OUTLET CHANNEL Russian patent published in 2024 - IPC A47J31/36 

FIELD: beverage preparation devices.

SUBSTANCE: invention relates to an automatic coffee machine (1) comprising control circuit (60), dosing head (50) comprising at least one coffee outlet (51), and brewing device (10), wherein brewing device (10) comprises brewing chamber (12) provided with upper opening (16) for receiving ground coffee, and pressure piston (14) configured to move between an upper retracted position, in which it is located above brewing chamber (12), and a lower seal position, in which it enters brewing chamber (12) through upper opening (16), wherein hot water is supplied to brewing chamber (12), by means of pump (9), wherein said chamber is communicated with at least one coffee outlet (51) via coffee discharge channel (30) extending through pressure piston (14). In accordance with the invention, to outlet channel (30), air conduit (40) is connected in the area of connection zone (49) located next to pressure piston (14), wherein air conduit (40) comprises electric valve (47), which is controlled by control circuit (60), moving it from air conduit (40) closing position to air conduit (40) opening position immediately after pump (9) stops end of coffee brewing, so that coffee in outlet channel (30) after stopping of electric pump (9) flows out under action of gravity force continuously after already dispensed coffee.

EFFECT: creation of an automatic coffee machine, which has a simple design and is economical to use.

10 cl, 4 dwg