Espresso machine has common control valve to operate hot water feed and infusion chamber closure

摘要

The infusion machine for beverages using hot water has an infusion chamber (1) connected to a hot water feed circuit. The chamber can be opened or closed by a closure operated by a hydraulic control circuit (10). The hot water distribution circuit and the control circuit have a common control valve. The closure can have a hydraulic cylinder (4) actuated by a hydraulic pump (12).