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Boiler for a machine for preparing beverages

A technology for beverage preparation machines and boilers, which is applied in the field of boilers to achieve the effect of increasing heating speed and reducing thermal inertia

Inactive Publication Date: 2014-03-26
CIE MEDITERRANEENNE DES CAFES CARROS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

boiler with deformation chamber

Method used

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  • Boiler for a machine for preparing beverages
  • Boiler for a machine for preparing beverages

Examples

Experimental program
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Effect test

Embodiment Construction

[0042] The boiler has a body 5 and a heating element which together with the body 5 forms a heating space into which liquid is intended to flow and be heated. More particularly, the heating element has at least one diffuser 1 with a first wall 2 for being arranged in contact with the liquid to be heated. The first wall 2 is used to abut against the inner surface of the body 5 to define a heating chamber.

[0043] In the example shown, the heating space defines a serpentine flow channel 6 . The channel 6 seen in section has, for example, two transverse walls and two side walls. The first transverse wall 2 is carried by the first wall 2 of the diffuser 1 , while the second transverse wall 3 is carried by the inner surface of the body 5 . The side walls are carried by the body 5 and extend in the direction of the diffuser 1 . exist figure 1 and 2 , the channel is sectioned along its length.

[0044] In a variant embodiment not shown, it is provided that the side walls are c...

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Abstract

A boiler for a machine for preparing beverages, wherein a fluid is brought to a pressure of at least 8 bars, including at least one diffuser (1) having a first wall (2) to be placed in contact with the fluid to be heated, a second wall (3) opposite the first wall (2) and provided with at least one heating element, at least one body (5) defining, together with the first wall (2) of the diffuser (1), at least one heating chamber, wherein the heating element is a screen-printed or photoengraved resistor. The boiler has a deformation chamber (7). The chamber is arranged such that, when subjected to the pressure in the heating chamber, the diffuser (1) elastically deforms in the deformation chamber (7) so as at least partially to absorb the pressure force.

Description

technical field [0001] The present invention relates to a boiler for hot beverage preparation machines capable of heating a fluid brought to a higher pressure. The invention applies in particular to boilers for coffee machines. Background technique [0002] In a known manner, a boiler for a hot beverage preparation machine has a metal device defining a heating chamber, inside which a resistive element is embedded. The disadvantages of these boilers are the high thermal inertia and the long time required to heat the liquid. In addition, the acquisition of these boilers entails large material costs. [0003] In order to obtain a hot drink in a short time, boilers have been proposed which rapidly increase the temperature of the liquid used for preparing the drink. These boilers usually have a heating element of the screen printed resistance type, which is incorporated into a diffuser. [0004] However, these boilers are not used for the preparation of beverages which requir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47J31/54
CPCA47J31/542A47J31/54
Inventor J-P·勃朗A·戈林
Owner CIE MEDITERRANEENNE DES CAFES CARROS