FR2506592A1 - Heater for express coffee - has separate replaceable sections and metal alloy heater which is interchangeable - Google Patents

Heater for express coffee - has separate replaceable sections and metal alloy heater which is interchangeable Download PDF

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Publication number
FR2506592A1
FR2506592A1 FR8111032A FR8111032A FR2506592A1 FR 2506592 A1 FR2506592 A1 FR 2506592A1 FR 8111032 A FR8111032 A FR 8111032A FR 8111032 A FR8111032 A FR 8111032A FR 2506592 A1 FR2506592 A1 FR 2506592A1
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Prior art keywords
coffee
heater
machine according
water
metal alloy
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FR8111032A
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French (fr)
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FR2506592B1 (en
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LETALLEC FRANCOIS
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LETALLEC FRANCOIS
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Priority to FR8111032A priority Critical patent/FR2506592B1/en
Publication of FR2506592A1 publication Critical patent/FR2506592A1/en
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Publication of FR2506592B1 publication Critical patent/FR2506592B1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/54—Water boiling vessels in beverage making machines
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A47J31/30—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under steam pressure

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

The express coffee-maker comprises one or more separate coffee-making units. Each coffee- or steam-making unit consists of a metal alloy heating-container (2) which is movable and replaceable. At a water pressure of three to eight bars, the machine is able to operate without a pump or suppressor. The machine can be electric or gas operated. A pressure-reducing valve with manometer regulates the water intake. An inlet duct (18) moistens the ground coffee with warm water.

Description

La présente invention concerne une machine à café express avec production d'eau chaude et de vapeur pour réchauffer les liquides, pour hotels, bars, restaurants, col Lectivités, à corps de chauffe autonomes et interchangeables. The present invention relates to an express coffee machine with hot water and steam production for heating liquids, for hotels, bars, restaurants, Lectivities neck, with autonomous and interchangeable heating bodies.

Il existe dans la technique des machines à café à usage professionnel, différents systèmes qui comportent une chaudière unique, de capacité variable en fonction du nombre de groupes de production de café dont dispose la machine. In the technique of coffee machines for professional use, various systems which include a single boiler, of variable capacity according to the number of groups of coffee production available to the machine.

Cette chaudière contient, pour environ la moitié de sa capacité, de l'eau qui doit ètre portée à ébulition et proluire de la vapeur ( le café ne pouvant être produit avant que la pression de vapeur atteigne 2 bars environ, ce qui @écessite un temps de chauffe variant de 15 à 40 minutes selon l'importance de la machine et la puissance du chauffage. This boiler contains, for about half of its capacity, water which must be brought to boiling point and produce steam (coffee cannot be produced before the steam pressure reaches approximately 2 bars, which requires a heating time varying from 15 to 40 minutes depending on the size of the machine and the heating power.

Il n'est donc pas intéressant pour l'utilisateur d'inter- rompre le chauffage pendant la nnit ou les heures d'inectivi- té de l'établissement. It is therefore not advantageous for the user to interrupt the heating during the end or during the hours of inactivity of the establishment.

D'autre part, le fait de la cuve unique oblige l'utilisateur à acquérir un appareil pouvant satisfaire la demande maximale et, il en résulte une consommation excessive d'éner- gie aux heures de service réduit. On the other hand, the fact of the single tank obliges the user to acquire an apparatus capable of satisfying the maximum demand and, this results in an excessive consumption of energy during the reduced operating hours.

Ces machines sont généralement chauffées par résistan- ces blindées (thermoplongeurs) à fortes charges spécifiques ze qui risque d'occasionner une formation de tartre ou calamine sur la gaine de la résistance par agglutination des composants minéraux contenus dans l'eau et qui, formant écran à la diffusion de la chaleur, sont facteurs d'une consommation excessive d'électricité.  These machines are generally heated by armored resistors (immersion heaters) with high specific charges ze which risks causing scale or scale formation on the resistance sheath by agglutination of the mineral components contained in the water and which, forming a screen to the diffusion of heat, are factors of an excessive consumption of electricity.

Four éviter des inconvénients, il serait souhaitable de diposer de groupes de production de café, totalement indépen- dants mais, pouvant ètre mis en service simultanément. To avoid disadvantages, it would be desirable to have coffee production groups, which are completely independent but which can be put into service simultaneously.

Tour obtenir tn avantage appréciable, il est nécessaire que le chauffage de chaque groupe soit rapide et ne soit pas supérieur à quelques minutes sans qu'il en résulte une consommation excessive d'énergie. In order to obtain an appreciable advantage, it is necessary that the heating of each group is rapid and is not more than a few minutes without this resulting in excessive consumption of energy.

L'objectif de la présente invention consiste à apporter les avantages sus-mentionnés en réalisant un appareil à production et consommation modulables, simplet peu onéreux en consommation et entretion. The objective of the present invention is to provide the above-mentioned advantages by producing an apparatus for modular production and consumption, which is simple and inexpensive in consumption and maintenance.

Cette machine se caractérise en ce que dans une structure(I) est incorporé un corps de chauffe amovible(2) constitué par un serpontin(3), noyé dans une masse en alliage de métaux ayant un bon coefficient de conduction thermique et dans lequel est incorporée une résistance électrique(4),régulée par thermostat à bulbe, dont l'emplacement(7) est situé près de l'entrée d'eau dans le corps de chauffe,
Sous le corps de chauffe est placée une rampe à gaz ('2) à régulation identique.This machine is characterized in that in a structure (I) is incorporated a removable heating body (2) constituted by a serpontin (3), embedded in a mass of metal alloy having a good coefficient of thermal conduction and in which is incorporated an electrical resistance (4), regulated by a bulb thermostat, the location (7) of which is located near the water inlet in the heating body,
Under the heating body is placed a gas manifold ('2) with identical regulation.

L'utilisation de ce corps de chauffe permet le détar- trage éventuel du serpentin d dune façon rapide, peu onéreuse sans arret de l'ensemble de la machine.  The use of this heating body allows the possible descaling of the coil in a rapid, inexpensive manner without stopping the entire machine.

Ce corps de chauffe est fixé à une forme métallique(6) supportant dans un porte-filtre, le filtre(5) destiné à contenir la mouture de café.  This heating body is fixed to a metallic form (6) supporting in a filter holder, the filter (5) intended to contain the coffee grounds.

L'eau circulant dans le serpentin peut ètre dirigée vers le filtre, l'ouverture du débit étant assuree par une électro-vanne à trois voies(8), assurant la décompression du conduit(18) et, dece fait, un assèchement du marc de café en fin d'opération, ou vers un robinet(9), permettant d'obtenir de l'eau chaude pour la préparation de boissons. The water circulating in the coil can be directed to the filter, the opening of the flow being ensured by a three-way solenoid valve (8), ensuring the decompression of the conduit (18) and, as a result, drying of the marc of coffee at the end of the operation, or to a tap (9), making it possible to obtain hot water for the preparation of drinks.

La disposition du conduit I8 est telle qu'en période de non-utilisation, sa température est inférieure à celle du corps de chauffe et de son support, et p#ermet d'humecter lapoudre de café avec une infime quantité d'eau tiède suivie suivie d'une eau très chaude. The arrangement of the conduit I8 is such that in periods of non-use, its temperature is lower than that of the heater and its support, and allows to moisten the coffee powder with a tiny amount of lukewarm water followed followed by very hot water.

Cette particularité permet de préparer le café selon la méthode ancienne et d'obtenir un savoureux café. This feature makes it possible to prepare coffee according to the old method and to obtain a tasty coffee.

La pression de l'eau, pour le bon fonctionnement ae l'appareil doit ètre convenable et régulière ( entre 3 et 8 bars ). Bn cas de pression infériéure, il eat nécessaire d'équiper l'appareil d'un petit surpresseur(10), fonctiont nant en cas d'ouverture de l'électro-vanne 8,et situé entre l'admission d'eau dans le Corps de chauffe et une autre élec- tro-vanne à trois voies (11) qui fermée, permet de rétablir dans le corps de chauffe une pression équivalente à celle du réseau, évitant ainsi des surpressions dans la machine en période de non-utilisation. The water pressure, for the proper functioning of the device must be suitable and regular (between 3 and 8 bars). In case of lower pressure, it is necessary to equip the device with a small booster pump (10), operating when the solenoid valve 8 is open, and located between the water intake in the Heating body and another three-way solenoid valve (11) which, when closed, makes it possible to re-establish a pressure in the heating body equivalent to that of the network, thus avoiding overpressures in the machine during periods of non-use.

La production de vapeur peut ètre obtenue par élévation de la température dans le corps de chauffe et la réduction de l'introduction d'eau par la manoeuvre de la vanne(13),si- multanée à l'ouverture du robinet 9, ou par un petit ensemble autonome(14), de type identique au oorps de chauffe 2, d@@t le dispositif d'admission d'eau(I5) est placé en amont et régulé par un détendeur réglable à manomètre(16)
L'opdration de chauffage à la vapeur consiste à introdui- re le bec de vaporisation articulé (I7) dans le liquide à chauffer, ouvrir l'admission (15); l'eau pénètre instantanément sous faible pression dans le corps de chauffe dont la température est constamment à environ 150 et sort en vapeur. The production of steam can be obtained by raising the temperature in the heating body and reducing the introduction of water by operating the valve (13), simultaneous with the opening of the valve 9, or by a small autonomous assembly (14), of the type identical to the heating body 2, d @@ t the water intake device (I5) is placed upstream and regulated by an adjustable pressure regulator with pressure gauge (16)
The steam heating operation consists in introducing the articulated spray nozzle (I7) into the liquid to be heated, opening the inlet (15); the water instantly penetrates under low pressure into the heating body, the temperature of which is constantly around 150 and leaves in vapor.

L'opération de fabrication du café consiste après un temps de chauffage de quelques minutes (lors de la première mise en service)à; Mettre la poudre de café dans le filtre 5 placé sous le bloc 6, cette pièce étant un élément d'échange thermique entre le corps de chauffe et le filtre,actionner l'ouverture de l'électro-vanne 8 jusqu'à obtention de la quantité de café désiré@.  The coffee making operation consists of a heating time of a few minutes (during the first start-up) at; Put the coffee powder in the filter 5 placed under the block 6, this part being a heat exchange element between the heating body and the filter, actuate the opening of the solenoid valve 8 until the quantity of coffee desired @.

Claims (7)

REVENDICATIONS I) tachine à café express, caractérisée en ce qu'elle comporte un ou plusieurs groupes de production de café totalement indépendantsI) express coffee tachine, characterized in that it comprises one or more completely independent coffee production groups 2) Machine suivant la revendication I, caractérisée en ce que chaque groupe de production de café ou vapeur comporte un corps de chauffe en alliage de métaux, amovible, donc interchangeable.2) Machine according to claim I, characterized in that each coffee or steam production group comprises a heating body made of metal alloy, removable, therefore interchangeable. 3) Machine suivant les revendications I et 2, caractérisée en ce qu'à une pression d'eau de 7 à s bars, elle peut fonctionner sans pompe ou surpresseur.3) Machine according to claims I and 2, characterized in that at a water pressure of 7 to s bars, it can operate without a pump or booster. 4) Machine suivant les revendications I, 2 et 3 cractéri- sée en ce que l'admission dteau dans le corps de vaporisation est située en am#ont du dit corps et régulée par un détendeur à manomètre.4) Machine according to claims I, 2 and 3 characterized in that the water intake in the spray body is located in am # have said body and regulated by a pressure gauge. 5) Machine suivant l'ensemble des revendications 1,2,3 et4 caractérisée en ce qu'elle est équipée de possibilité de chauffage électrique ou au gaz.5) Machine according to all of claims 1,2,3 and4 characterized in that it is equipped with the possibility of electric or gas heating. 6) Machine suivant l'ensenble des revendications 1,2,3,4 et 5, caractérisée en ce que la disposition du conduit 18 permet d'humecter la mouture de caîé à lteau tiède.6) Machine according to the set of claims 1, 2, 3, 4 and 5, characterized in that the arrangement of the conduit 18 makes it possible to moisten the ground coffee with lukewarm water. 7) Machine suivant l'ensemble des revendications 1,2,3,4, 5 et 6, caractérisée en ce que le détartrage éventuel des circuits chauffants peut s'effectuer sans démontage total de la machine 7) Machine according to all of claims 1,2,3,4, 5 and 6, characterized in that the possible descaling of the heating circuits can be carried out without total disassembly of the machine
FR8111032A 1981-06-02 1981-06-02 EXPRESS COFFEE MACHINE WITH INDEPENDENT GROUPS Expired FR2506592B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8111032A FR2506592B1 (en) 1981-06-02 1981-06-02 EXPRESS COFFEE MACHINE WITH INDEPENDENT GROUPS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8111032A FR2506592B1 (en) 1981-06-02 1981-06-02 EXPRESS COFFEE MACHINE WITH INDEPENDENT GROUPS

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FR2506592A1 true FR2506592A1 (en) 1982-12-03
FR2506592B1 FR2506592B1 (en) 1987-02-27

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5259297A (en) * 1989-11-28 1993-11-09 Nuova Faema S.P.A. Professional espresso coffee maker for bar-room use
EP0607759A1 (en) * 1993-01-19 1994-07-27 C.G.F. S.r.l. Device for producing frothing steam, in particular for use in hot-beverage preparing apparatus
ES2234371A1 (en) * 2001-03-21 2005-06-16 Valentin Fuertes Aranda Autonomous heating, regulating and distribution unit for espresso coffee machines
ES2298046A1 (en) * 2006-06-29 2008-05-01 Vendiser, S.L. Packaging and dispensing system for liquid coffee, has boiler that communicate with network of water supply, and coil is provided where liquid coffee is circulated, which is heated by heat transfer from boiler to get ready for consumption
ES2302622A1 (en) * 2005-08-08 2008-07-16 Ya Horng Electronic Co. Ltd. Heater for hot drinks machine, comprises U-shaped heater tube welded to surrounding, helical stainless steel water pipe and cast into aluminum block
WO2008098683A3 (en) * 2007-02-12 2008-11-20 Volkswagen Ag Device for producing hot water or water vapour especially for vehicles, especially motor vehicles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673920A (en) * 1950-07-20 1954-03-30 Heat X Changer Co Inc Electric heater for water or the like
FR2425219A1 (en) * 1978-05-09 1979-12-07 Le Tallec Francois Expresso coffee and hot drinks preparation machine - has container with only liquid conducting heat and two electrical resistance coils

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673920A (en) * 1950-07-20 1954-03-30 Heat X Changer Co Inc Electric heater for water or the like
FR2425219A1 (en) * 1978-05-09 1979-12-07 Le Tallec Francois Expresso coffee and hot drinks preparation machine - has container with only liquid conducting heat and two electrical resistance coils

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5259297A (en) * 1989-11-28 1993-11-09 Nuova Faema S.P.A. Professional espresso coffee maker for bar-room use
EP0607759A1 (en) * 1993-01-19 1994-07-27 C.G.F. S.r.l. Device for producing frothing steam, in particular for use in hot-beverage preparing apparatus
ES2234371A1 (en) * 2001-03-21 2005-06-16 Valentin Fuertes Aranda Autonomous heating, regulating and distribution unit for espresso coffee machines
ES2302622A1 (en) * 2005-08-08 2008-07-16 Ya Horng Electronic Co. Ltd. Heater for hot drinks machine, comprises U-shaped heater tube welded to surrounding, helical stainless steel water pipe and cast into aluminum block
ES2298046A1 (en) * 2006-06-29 2008-05-01 Vendiser, S.L. Packaging and dispensing system for liquid coffee, has boiler that communicate with network of water supply, and coil is provided where liquid coffee is circulated, which is heated by heat transfer from boiler to get ready for consumption
WO2008098683A3 (en) * 2007-02-12 2008-11-20 Volkswagen Ag Device for producing hot water or water vapour especially for vehicles, especially motor vehicles

Also Published As

Publication number Publication date
FR2506592B1 (en) 1987-02-27

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