FIELD: food industry.
SUBSTANCE: invention relates to a beverage preparation device provided with a liquid reservoir, a dispensing line connected to reservoir, and a pump for displacing liquid from liquid reservoir to dispensing line, wherein pump is connected to a control unit and is configured to supply liquid to dispensing line at a first flow rate and at a second flow rate, which is greater than first flow rate, wherein dispensing line comprises an outlet passage with a peripheral wall provided with at least one elastically deformable wall section, which peripheral wall surrounds a relatively small dispensing opening at first flow rate and surrounds a larger dispensing opening at a second flow rate. Peripheral wall forms a closed contour, which is star-shaped and has three points and deformable wall sections at points, as well as between adjacent points.
EFFECT: achieving suitable shape for stable supply of liquid, constant flow rate in a range close to atmospheric pressure, which prevents turbulence of liquid which makes outlet of liquid unreliable.
6 cl, 6 dwg
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