Machine for making beverage i.e. espresso coffee, has discharge valve arranged in upstream of activator and arranged in manner such that opening of discharge valve reduces pressure of fluid in upstream of activator

摘要

The machine has an infusion system (10) with an infusion chamber (7) that receives a product to be infused. A calibrated valve (120) is placed between a boiler and the chamber and arranged to avoid the flow of fluid toward the chamber when pressure of the fluid upstream from the valve is higher than a threshold. An outlet solenoid valve is placed on an outlet branch. A discharge valve is arranged in an upstream of an activator (40) and arranged in a manner such that an opening of the discharge valve reduces the pressure of the fluid in upstream of the activator.