Hybrid apparatus for preparing beverages
a technology for preparing beverages and hybrid apparatuses, which is applied in the field of hybrid apparatuses for preparing beverages, can solve the problems of difficult movement of these preparation apparatuses, inability to adapt to the heating system to prepare espresso, and inability to optimally operate the machine, so as to improve the distribution of combustibles from the supply conduit to the combustion area
Inactive Publication Date: 2015-10-08
NESTEC SA
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Benefits of technology
[0047]Such a flameless or flame-inhibited combustion may reduce the combustion noise during heating and also prevents the formation of undesirable and possibly dangerous flames extending out of the heating device, especially when an elevated heating power is needed.
[0054]A common combustion supply conduit can be associated with a plurality of control valves, in particular parallel valves, the outlets of which join in or upstream the common combustion supply conduit. In a variation, the common combustion supply conduit may be replaced by a plurality of common combustion conduits having their inlets in fluid connection, the outlets of the valves being directly or indirectly connected to the connected conduit inlets. In this case, the distribution of the combustible delivered by the supply conduits to the combustion area may be improved.
Problems solved by technology
It is therefore difficult to move these preparation apparatuses, for example on a trolley or simply by carrying them.
Whereas this type of flame heating of the water may prove to be convenient to circulate boiling / evaporated water under the effect of pressure for the purpose of making drip coffee, this heating system is not appropriate to be adapted to prepare an espresso.
The autonomy of such beverage machines can be of a few hours and thus provides a solution when their use is intended within a relatively short period from the time after the water has been preheated, for instance in trains, planes, cinemas. . . . However, this machine is not optimal when intended to be used only several hours or days after preheating the water.
Even though combustion heaters may constitute an interesting alternative to electric heating for certain type of mobile or portable coffee machines, the known use of a combustion heater leads to boiling and / or evaporation of the water, which is not desirable for the preparation of espresso-type coffee or even tea.
Method used
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Embodiment Construction
[0063]FIG. 1 discloses a water circulation and heating system 1 of a liquid beverage preparation device, in particular a coffee, espresso and / or tea preparation machine, in accordance with the invention.
[0064]System 1 comprises a reservoir 2 for containing the liquid, in particular water, a pump 3 for promoting the circulation of the liquid, in particular under pressure, a thermoblock 4 with an electric thermal resistance 5 and a burner 6 with a combustible tank 7 for heating the circulating liquid and an extraction head 8 with a beverage supply exit 9.
[0065]Thermoblock 4 has a mass of metal, in particular an aluminium body incorporating a steel passage such as a steel tube extending through the body, through which the liquid is circulated from pump 3 towards extraction head 8 and thereby appropriately heated. This thermoblock's mass forms a thermal capacity to smooth or absorb the effect of variable heat supply by resistor 5 or burner 6 and / or variable heat consumption by the circu...
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A device for preparing hot beverages is provided and includes an arrangement for circulating a liquid to a beverage supply exit; and a combustion heating means, such as a burner, for supplying combustion heat to the liquid that is circulated to the supply exit. The combustion heating means can be associated: with an electric heating means for supplying electric heat to the liquid that is circulated to the supply exit and / or with a means for regulating the heat supplied to the liquid from the combustion heating means. The present disclosure further provides a device for heating a liquid comprising combustion heating means and a cathalic device for inhibiting flame formation.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a divisional application of U.S. application Ser. No. 12 / 811,336, filed Jun. 30, 2010, which is a U.S. national stage filing of International Application No. PCT / EP09 / 050684, filed Jan. 22, 2009, which claims priority to European Patent Application No. 08100917.7, filed Jan. 25, 2008, and European Patent Application No. 08152433.2, filed Mar. 7, 2008, the entire contents of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to an apparatus for preparing beverages. The invention more precisely relates to dispensing machines, such as mobile or portable coffee machines.[0003]For the purpose of the present description, a “beverage” is meant to include any liquid food, such as tea, coffee, hot or cold chocolate, milk, soup, baby food, etc.BACKGROUND ART[0004]The beverage preparation apparatuses of the coffee machine type which use prepacked or non-packed portions of a...
Claims
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IPC IPC(8): A47J31/56
CPCA47J31/56A47J27/21A47J31/005A47J31/54A47J31/545
InventorBOUSSEMART, CHRISTOPHE S.KOLLEP, ALEXANDREHODEL, THOMASPREISIG, PETER
OwnerNESTEC SA