Machine for preparing a drink and method for preparing a drink using such a machine

a technology for preparing a beverage and a machine, which is applied in the field of preparing a beverage machine and a beverage preparation process, can solve the problems of excessive size of the machine described in the state of the art, insufficient number of components, and inability to meet the needs of domestic applications

Inactive Publication Date: 2018-05-10
MINIMMA ESPRESSO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a machine that can continuously supply liquid to an infusion chamber, even when the resistance of the product in the chamber is low. This is achieved by using a hydraulic accumulator device that allows the storage under pressure of a fraction of the liquid injected by the injection means. The speed at which the distribution piston performs its return stroke to the resting position is regulated to guarantee the correct extraction, regardless of the type of product used for infusion. This ensures that the beverage always has the optimal quality, without the need for the user to adjust the discharge (flow rate) of the liquid from the infusion chamber.

Problems solved by technology

However, it has been observed that the machine described in said state of the art has a drawback.
For example, it has been detected that its size is still excessive for portable use.
Furthermore, it has also been observed that the number of components is still too high, which negatively affects its manufacturing cost.

Method used

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  • Machine for preparing a drink and method for preparing a drink using such a machine
  • Machine for preparing a drink and method for preparing a drink using such a machine
  • Machine for preparing a drink and method for preparing a drink using such a machine

Examples

Experimental program
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first embodiment

[0020] said injection means are configured to exert a pressure on said piston or said membrane lower than 4 bar. This embodiment makes it possible to transmit to the liquid a pressure which is suitable for preparing beverages from soluble liquid products or solid products of instantaneous dissolution disposed in capsules or bags in the infusion chamber. It would also be suitable for preparing beverages from solid products with a low degree of extraction of soluble substances.

[0021]According to a second embodiment, said injection means are configured to exert a pressure on said distribution piston or said membrane equal to or greater than 4 bar. This second embodiment makes it possible to transmit to the liquid a pressure which is suitable for preparing beverages from solid products with a medium to high degree of extraction of soluble substances, such as, for example, the beverage called espresso coffee.

second embodiment

[0022]Preferably, according to said second embodiment, said injection means are configured to exert a pressure on the piston or the membrane between 7 and 9 bar. These pressures are suitable for preparing beverages with a high degree of extraction of soluble substances and aroma (high quality espresso coffee).

[0023]Advantageously, said means for injecting a liquid comprise at least one pump cylinder and piston assembly which is associated with an external independent storage reservoir of said liquid, said pumping assembly allowing the injection of the liquid into the accumulator device cavity in order retract said distribution piston or said membrane.

[0024]This pump cylinder and piston assembly (one or more pistons moving alternately to pump) is configured to be able to suction the liquid from an independent reservoir disposed adjacently to an external distribution cylinder and piston assembly or to an external membrane of the accumulator device. In this way, it is possible to obtai...

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Abstract

An infusion chamber (2) for housing a dose of product and means for supplying a liquid under pressure to said infusion chamber, said supply means comprising a hydraulic accumulator device (4a, 4b) susceptible of storing under pressure a liquid from liquid injection means (8, 8a, 8b, 9, 25) of said machine (1, 1′), characterised in that said liquid injection means (8, 8a, 8b, 9, 25) and said hydraulic accumulator device (4a, 4b) are configured and disposed interconnected to the infusion chamber (2), so that a first fraction of injected liquid is susceptible of being stored under pressure in a cavity (5) of said accumulator device (4a, 4b), while a second fraction of the injected liquid is simultaneously distributed or supplied to the exterior through the infusion chamber (2) of the machine (1, 1′), allowing said accumulator device (4a, 4b) to store a fraction of liquid configured to ensure the continuous supply of a certain flow (Qc) during a predetermined beverage preparation time or distribution time (te). The process comprises the steps of retracting the distribution cylinder (4a) piston (4b) or an element of said accumulator device to its active position through the injection of a liquid from an independent storage reservoir (9), and simultaneously supplying the liquid injected under pressure.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This patent application is a continuation application of U.S. patent application Ser. No. 14 / 653,159, which was filed on Jun. 17, 2015. U.S. patent application Ser. No. 14 / 653,159 is a national-stage filing of International Patent Application No. PCT / ES2013 / 070882, which was filed on Dec. 17, 2013. International Patent Application No. PCT / ES2013 / 070882 claims priority from EP 12197606.2, filed on Dec. 17, 2012. U.S. patent application Ser. No. 14 / 653,159, International Patent Application No. PCT / ES2013 / 070882, and EP 12197606.2 are incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to a machine for preparing a beverage and a process for preparing a beverage used by said machine.[0003]The machine and process described are suitable for preparing a beverage by infusion of a solid or liquid product from a liquid which is supplied under pressure. In particular, the machine claimed is suitable for preparing a be...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A47J31/36A47J31/54A47J31/38A23L2/52
CPCA47J31/36A47J31/54A47J31/38A23L2/52A47J31/3623A23V2002/00A23F5/262A23F5/26
Inventor SAMSO BESORA, XAVIER
Owner MINIMMA ESPRESSO
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