HYDRAULIC CIRCUIT FOR MACHINE FOR PREPARATION OF INSTANT BEVERAGES, PRESSURE-RELIEF AND PROTECTION VALVE FOR SAID CIRCUIT AND METHOD OF INSTANT BEVERAGE PREPARATION Russian patent published in 2010 - IPC A47J31/46 

FIELD: food industry.

SUBSTANCE: invention relates to machines used for preparation of instant beverages. The hydraulic circuit for instant beverage machines contains a reservoir, an outlet tube for the water contained in the said reservoir, a flow metre connected to the said outlet tube, the first valve that suppresses vibrations, a boiler, the second pressure relief and protection valve, a tap for water/steam, the third valve of beverage flow, a return reservoir.

EFFECT: invention enables introduction of a technology based on a single solenoid valve and a single boiler.

16 cl, 6 dwg