FIELD: engines and pumps.
SUBSTANCE: pump (800) for the beverage preparation machine (1) has: a pump inlet (810); a pump outlet (820); a master element (815, 816) for pressure injection liquid and liquid circulation from the pump inlet to the pump outlet; and the delivery channel (870, 871, 872) of the pump which functionally connects the master element for liquid to with the pump outlet. The delivery channel of the pump contains the liquid dampener (860) for absorption of vibrations upstream the pump outlet in the named liquid which are created by the master element for liquid for the purpose of circulation through the pump outlet of dampened liquid under pressure from the master element for liquid.
EFFECT: design improvement.
15 cl, 5 dwg
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