Liquid concentrate/extract beverage dispenser with replaceable concentrate/extract cartridge

Apparatus including a dispenser for a liquid comprising: a housing (354) including a dispensing area (30, 330, 730, 830, 930, 1030) for dispensing a fluid; a reception cartridge (31, 131, 331, 531, 631, 931) in the housing (354); an actuator electromagnetic dispensing (38, 138, 238, 338, 538, 638, 738) located in the housing (354); a cartridge of concentrate / extract (50, 150, 250, 250, 350, 450, 550, 650, 750 850, 950, 1050) insertable removably in the receiving area of ​​the cartridge (31, 131, 331, 531, 631, 931) in a position to be actuated by the dispensing actuator (38, 138, 238, 338, 538, 638, 738), the cartridge of concentrate / extract (38, 138, 238, 338, 538, 638, 738) adapted to contain a fluid to be dispensed in the dispensing area (30, 330, 730, 830, 930, 1030) after placement in the receiving area of ​​the cartridge (31, 131, 331, 531, 631, 931), the cartridge of concentrate / extract (50, 150, 250, 250, 350, 450, 550, 650, 750 850, 950, 1050) comprising: a hollow body (51, 151, 251, 351, 451 ) adapted to contain the fluid to be dispensed; dispensing tube (54, 154, 254, 354, 454) connected to the hole (51, 151, 251, 351, 451) body; a piston (157, 257, 357, 457) located in the dispensing tube (54, 154, 254, 354, 454); and a valve (160, 260, 360, 460) having a valve stem (163, 263, 363, 463) passing through a port (183, 283, 383, 483) of a valve seat (167 , 267, 367, 467) connected to the dispensing tube (54, 154, 254, 354, 454), the port (183, 283, 383, 483) defining a flow passage through the dispensing tube (54, 154 , 254, 354, 454), and a valve body (164, 264, 364, 464) located at a second end of the valve stem (163, 263, 363, 463) in removable contact with the valve seat (167 , 267, 367, 467), for alternately opening and closing the port (183, 283, 383, 483); and a controller (80, 580, 680, 780, 980) located in the housing (354) to control the actuator (38, 138, 238, 338, 538, 638, 738) to discharge a desired amount of fluid to be dispensed from the cartridge (50, 150, 250, 250, 350, 450, 550, 650, 750 850, 950, 1050), characterized by the fact that the piston has an area of ​​flow passage of the piston, corresponding to an area flow openings in the piston added to a flow area through an annular space between the outer perimeter of the piston and an inner surface of the dispensing tube, of between 20% to 40% of a flow area defined by the inner surface of the dispensing tube, where the passage openings have a depth which is three to five times their respective width.