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Coffee machine with pre-infusion system

A coffee machine, coffee technology, applied in the direction of coffee, kitchen utensils, home utensils, etc., can solve problems such as damage, imperfect pre-fill, efficiency, etc.

Active Publication Date: 2018-12-11
SIMONELLI GRP SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] This prior art pre-filling system suffers from the drawback of the time it takes to fully heat the water in the heater
Furthermore, by completely and continuously wetting the coffee portion during the priming step, imperfect priming and efficiency issues are encountered during extraction of the beverage

Method used

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Examples

Experimental program
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Embodiment Construction

[0020] Referring to the accompanying drawings, a coffee machine according to the invention is generally indicated with the reference number 1 .

[0021] refer to figure 1 and figure 2 , the coffee machine 1 comprises a filter holder 2 having a housing 20 adapted to receive one or more coffee servings 3 . The coffee is in the form of ground coffee or ground coffee and is compressed in the housing 20 of the filter holder. The filter holder 2 has an extraction nozzle 21 communicating with said housing 20, from which the beverage is extracted.

[0022] The filter holder 2 is arranged in a dispensing unit 4 with a dispensing nozzle 40 to supply hot water to the coffee dose 3 .

[0023] The dispensing nozzles 40 of the dispensing unit are connected to the water supply system 5 . The water supply system 5 comprises a pump 50 for supplying pressurized water at a pressure of about 9-11 bar, usually from a water tank (not shown in the figure).

[0024] The heater 6 is arranged in ...

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PUM

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Abstract

A coffee machine (1) comprises: a filter holder (2) intended to contain at least one coffee dose (3), a dispensing unit (4) with dispensing nozzles (40) intended to send a flow of hot water on the coffee dose (3), a water supply system (5) provided with a pump (50) to supply pressurized water towards the dispensing nozzles (40), a heater (6) to heat the water to be supplied to the dispensing nozzles (40), a dispensing valve (7) to enable / disable the supply of hot water towards the dispensing nozzles, and a pre-infusion valve (9) disposed upstream the dispensing valve (7); the pre-infusion valve (9) being set in such a way as to operate in a pulsed mode for a pre-infusion time of at least 4 seconds, with opening and closing time equal to or lower than 1 second.

Description

technical field [0001] This patent application for industrial invention relates to a coffee machine with a pre-fill system. Background technique [0002] As is known, coffee machines comprise a filter holder in which ground coffee is placed in the form of a compressed powder. A filter holder with coffee dose is arranged below the dispensing unit of the machine. The dispensing unit has dispensing nozzles connected to a water supply system to supply high-pressure hot water (approximately 9-11 bar). However, it has been proven that in such high pressure (9-11 bar) hot water, the water flow in the coffee portion decreases rather than increases, as the coffee portion is reduced due to excessive migration of fines (i.e. the finest coffee particles). Overcompressed. Therefore, the extraction of the beverage is insufficient. [0003] EP2959808 describes such a technical problem and provides a solution for wetting coffee doses (priming) before supplying hot water under pressure. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J31/46
CPCA47J31/465A47J31/002A23F5/262A47J31/56A47J31/34A47J31/54A47J31/0615A47J31/0657
Inventor S·佛格利亚
Owner SIMONELLI GRP SPA
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