Infusion unit for drinks with hydraulic closing system

摘要

The infusion unit (3) comprises a moving element (9) with a seat (15) for ingredients for making said beverages, forming an infusion chamber (15) and shifting from a position for charging the ingredients to an infusion position, wherein the seat is between a hot water dispensing device (41) and a beverage outlet nozzle (35) opposite one another. The hot water dispensing device (41) comprises a cylinder-piston actuator (43, 47) fed by a first conduit (48) of water under pressure that controls a closing movement of the dispensing device (41) towards the seat (15) in infusion position. Moreover, the piston (47) of the actuator is associated to a conduit (57) of hot water under pressure. The piston exhibits a feeding chamber (55) of the hot water under pressure with an outlet port on a closing surface (53A) of the infusion chamber.