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Coffee machine infusion group

A technology of injection group and coffee machine, which is applied in the field of injection group and can solve the problems of large volume and complex structure of injection group

Active Publication Date: 2010-11-03
DE LONGHI SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The regret of this coffee machine can be that due to the specific placement and construction of the infusion group and the mechanism it houses, it is too bulky
[0006] The market is increasingly hearing about the need for injector cylinders to be detachable to be removed primarily for cleaning and / or maintenance, often resulting in increasingly complex structures for injector groups

Method used

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  • Coffee machine infusion group
  • Coffee machine infusion group
  • Coffee machine infusion group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The same components are denoted by the same reference numerals in the figures.

[0015] With reference to the figures above there is shown a coffee machine, all of which are indicated with the reference numeral 1 .

[0016] The coffee machine 1 comprises an infusion group comprising a closed piston 3 and an infusion cylinder 4 relative to the closed piston 3 in an engaged position forming an infusion chamber 5 and in a disengaged position for loading a load 200 of coffee powder can undergo reversible movement between them.

[0017] The injection group also includes a system for ejecting the spent coffee powder load from the injection cylinder 4 .

[0018] The expulsion system includes an expulsion piston 29 replaceably housed in the injection cylinder 4, and also includes a speed multiplying mechanism that operatively connects the injection cylinder 4 and the expulsion piston 29 so that they are There is a relative displacement between the position where the coffee po...

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PUM

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Abstract

The coffee machine infusion group comprises a closure piston (3) and an infusion cylinder (4) subjectable to a reversible roto-translation movement between a position of engagement with the closure piston (3) for the creation of an infusion chamber and a position of disengagement from the closure piston (3) for the loading of a coffee powder load, the infusion group having an expulsion system of the spent coffee powder load from the infusion chamber, the expulsion system comprising an expulsion piston (29) displaceably housed in the infusion cylinder (4), the expulsion system having mechanical driving means adapted for an interference with the expulsion piston (29), occurring due to the rotational component of the roto-translation movement, for displacement of the expulsion piston (29) relative to the infusion cylinder (4 ).

Description

technical field [0001] The invention relates to a filling group of a machine for preparing coffee beverages. Background technique [0002] A conventional automatic or semi-automatic coffee machine comprises an infusion group having: an infusion cylinder reversibly movable from a disengaged position to an engaged position; a hermetic piston for creating an infusion chamber; A channel leads to a closed piston and into the injection chamber. [0003] Instead, the filling cylinder has inside it an expulsion piston which moves in cooperation with a scraper for expulsion of the spent coffee powder load. [0004] Typically, the run cycle includes the following steps: loading of the coffee powder load into the interior of the infusion cylinder; movement of the infusion cylinder towards a position away from engagement with the hermetic piston for creating the infusion chamber and effecting the infusion; Disengagement to expel the spent coffee grounds load and return movement to loa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J31/36
CPCA47J31/3614A47J31/467A47J31/3619
Inventor G·德龙
Owner DE LONGHI SPA