Beverage preparation machine

Abstract

The invention relates to a beverage preparation machine (1), particularly a coffee machine, which comprises two brewing chambers (2, 3) for receiving a beverage substrate (4) for extraction, and a valve (10) for switching a liquid supply to the individual brewing chambers (2, 3), said valve (10) being a membrane valve and comprising an inlet opening (12) for the liquid supply, a first outlet opening (14) for the first brewing chamber (2), a second outlet opening (15) for the second brewing chamber (3), and a closing membrane (18).

Description

technical field [0001] The invention relates to a beverage preparation machine with two brewing chambers, and in particular a coffee machine, according to the preamble of claim 1 . Background technique [0002] Many beverage preparation machines are known from the prior art, which can accommodate two different capsules, which are processed simultaneously and / or sequentially, for the preparation of mixed drinks, for example in the form of coffee with milk or cappuccino. Valves are required for the targeted supply of water to the two brewing chambers. Typically hose pinch valves, solenoid valves or ceramic valves are used. [0003] For example EP1961351B1 shows a coffee machine with two brewing chambers which can be operated sequentially. To switch the water supply from the first to the second brewing chamber, a two-way ceramic valve is used. This document also mentions that solenoid valves can be used instead of ceramic valves. [0004] A disadvantage of the prior art is ...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the prior art is that the valves become fouled and thus quickly affect the valve tightness

Although this problem is solved with the hose pinch valve, the hose pinch valve is therefore exposed to high mechanical loads during each closing process and thus only achieves a short service life

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