Pumping system and method for a beverage production apparatus
AssigneeNestec S.A.
InventorsYoucef Ait Bouziad, Christian Janisch, Alfred Yoakim, Renzo Moser
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Abstract
The present invention presents a pumping system (1) with a preheated reservoir (2), a main pump (4) for pumping a preheated liquid (3) from the reservoir (2), and pressurizing means (5) for pressurizing the reservoir (2). Preferably, the pressurizing means set an absolute pressure of 0.5 to 1 bar in the reservoir (2). The liquid (3) in the reservoir (2) can be heated up to 90° C. or more. The present invention achieves a nearly complete suppression of the phenomenon of cavitation at the main pump entrance, and thus achieves an increased pumping performance at elevated liquid temperatures.
Claims15
Pumping system for a beverage production apparatus comprising:
- a reservoir for storing and heating a liquid;
- at least one main pump for pumping the liquid from the reservoir;
- and
- pressurizer for pressurizing the reservoir.
Pumping method for use in a beverage production apparatus comprising
- heating a liquid in a reservoir;
- pressurizing the reservoir with a pressurizer;
- and
- pumping the liquid from the reservoir with at least one main pump.
Dependencies are inferred from the claim text.