DE1454054C

DE1454054C - Hot water tank for coffee machines

Info

Publication number: DE1454054C
Application number: DE19631454054
Authority: DE
Inventors: Auf Nichtnennung Antrag
Original assignee: Barrera Markt, Jose, San Cugat del Valles (Spanien)
Priority date: 1962-04-16
Filing date: 1963-04-11
Publication date: 1973-01-25

Description

Dosierzylinder 10 liegt, der die Wassermenge für einen Kaffeeaufguß enthält. Wenn das Einlaßventil 7 geschlossen wird, wird selbsttätig das gleichfalls anDosing cylinder 10 is located, which contains the amount of water for a coffee infusion. When the inlet valve 7 is closed, it will also be activated automatically

keitsspiegel und an die Wasserleitung angeschlosse- 45 den Dosierzylinder 10. angeschlossene Auslaßventilkeitsspiegel and 45 connected to the water line the dosing cylinder 10. outlet valve

nen Abteil ist eine elektrische Heizvorrichtung untergebracht. Aus dem oberen als Dosiervorrichtung für das Brühwasser dienenden Abteil können mittels eines U-förmig gebogenen Heberrohres dosierte Mengen des heißen Brühwassers entnommen werden.An electric heater is housed in a compartment. From the top as a metering device for the compartment serving the brewing water can be dosed by means of a U-shaped bent siphon pipe of the hot brewing water.

Eine andere bekannte Kaffeemaschine hat einen mit einem verschiebbaren Kolben ausgestatteten Do-..sierzylinder. Ein federbelastetes Ventil.und ein Steuerkolben sind wechselweise offen bzw. geschlossen 11 geöffnet. Nun drückt der Wasserdruck innerhalb des Heißwasserbehälters den Kolben 12 des Dosierzylinders entgegen der Kraft der Feder 15 nach unten, so daß der Wasserinhalt des Dosierzylinders durch das geöffnete Auslaßventil 11 auf das Kaffeepulver fließt, das auf dem Sieb 14 der Patrone 13 liegt.Another known coffee machine has a dosing cylinder equipped with a displaceable piston. A spring-loaded valve and a control piston are alternately open and closed 11 open. Now the water pressure inside the hot water tank pushes the piston 12 of the dosing cylinder against the force of the spring 15 downwards, so that the water content of the metering cylinder through the open outlet valve 11 flows onto the coffee powder which is on the sieve 14 of the cartridge 13 located.

Wird nach erfolgtem Kaffeeaufguß das Auslaßventil 11 wieder geschlossen, wird selbsttätig das Einlaß-If the outlet valve 11 is closed again after the coffee has been brewed, the inlet valve is automatically

und arbeiten so,-daß wahlweise entweder das Ventil-:55 ventil 7 geöffnet. Nun kommt auf die Unterseite des den Zufluß von Heißwasser in den Dosierzylinder Kolbens 12 der gleiche Wasserdruck zur Einwirkung,and work so that either the valve: 55 valve 7 is open. Now comes to the bottom of the the inflow of hot water into the dosing cylinder piston 12 the same water pressure to act,

freigibt, dessen Kolben dadurch entgegen der Kraft einer Feder bis zu einem der Umsteuerung dienenden Anschlag verschoben wird, oder daß der Steuerkolben es zuläßt, daß der Kolben aus dem Dosierzylinder eine dosierte Heißwassennenge zur Brühschale drückt. Heißwassererzeuger und Dosierzylinder sind örtlich voneinander getrennt, so daß durch die Außenluft der mit Heißwasser gefüllte Dosierzylinderreleases, the piston of which thereby counteracts the force of a spring up to one of the reversing functions Stop is moved, or that the control piston allows the piston out of the metering cylinder presses a dosed amount of hot water to the brewing bowl. Hot water generator and dosing cylinder are locally separated from each other, so that the metering cylinder filled with hot water is exposed to the outside air

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abgekühlt wird.is cooled.

Mit der Erfindung soll eine solche unerwünschte Abkühlung der abgemessenen Brühwassermenge verder auch auf die Oberseite des Kolbens drückt, so daß sich die Wasserdrücke auf den Kolben ausgleichen. Jetzt wird der Kolben 12 durch die Feder 15 wieder in seine obere Lage gehoben, wobei sich der Dosierzylinder wieder mit heißem Wasser füllt.With the invention, such an undesirable cooling of the measured amount of brewing water should be verder also presses on the top of the piston so that the water pressures on the piston equalize. Now the piston 12 is lifted back into its upper position by the spring 15, the Refill the dosing cylinder with hot water.

Im vorstehenden wurde eine bevorzugte Ausführungsform der Erfindung beispielsweise beschrieben und es ist klar, daß Einzelteile dieser Ausfuhrungsform abgeändert werden können, ohne daß dabei die in den Patentansprüchen gekennzeichnete Erfindung verlassen wird.In the foregoing, a preferred embodiment of the invention has been described, for example and it is clear that items of this embodiment can be modified without affecting the invention characterized in the claims is left.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Claim:

Hot water tank for coffee machines, divided into two by a horizontal partition a pipe socket is divided into interconnected compartments, of which the lower, to the Water pipe attached compartment contains an electric heater and the upper compartment dispenses dosed amounts of hot water, characterized in that in the upper Compartment a dosing unit is housed, which consists of a cylinder (10) with a displaceable therein Piston (12) consists, the outside of which is constantly exposed to the water pressure in the container and on its inside constantly the pressure of a spring (15) and when filling the metering cylinder (10) the water pressure in the container also acts, whereby the dosing cylinder (10) is perpendicular continues through the lower compartment as a tube, the lower end of which optionally through an inlet valve (7) via a pipe (9) penetrating the lower compartment to or through the upper compartment an outlet valve (11) can be connected to the brewing bowl (13).

and thus the brewing water temperature can be kept constant.

For this purpose, the invention proposes that in a hot water tank of the type described above a dosing unit is housed in the upper compartment, which consists of a cylinder with a Piston consists, the outside of which is constantly exposed to the water pressure in the container and on its inside constantly the pressure of a spring and, when filling the dosing cylinder, the water pressure act in the container, whereby the dosing cylinder continues vertically through the lower compartment as a tube, its lower end optionally through an inlet valve via a pipe penetrating the lower compartment can be connected to the upper compartment or through an outlet valve to the brewing bowl.

The drawing represents a vertical section through an exemplary embodiment of the hot water tank represent.

The top closed by a lid 1 hot water tank 2 is through a horizontal Wall divided into two compartments. These two compartments are accessible through the upwardly directed pipe socket 5 and the downwardly directed pipe socket 6 connected to one another. Cold comes through the opening 4 Water from the water pipe into the compartment of the hot water tank located below. In this compartment is the electrical heating coil 3, which by a thermostat, not shown, to constant water temperature is regulated. Because of the different specific gravity of hot and cold Water enters through the upwardly directed pipe socket 5 hot water from the one below Compartment into the compartment above and through the

The invention relates to a hot water tank for coffee machines, which is through a horizontal Partition is divided into two compartments connected by a pipe socket, of "which

the lower nozzle 6, which is connected to the water pipe, discharges colder water part contains an electrical heating device and the upper in the lower. In this way, the upper compartment dispenses dosed amounts of hot water. upstairs compartment despite the dessert one

There is already a coffee machine known whose
The hot water tank is divided into two compartments by a horizontal partition, which is connected by a pipe which passes through the pipeline 9 and the opening 8 with the upper inlet compartment and an opening valve 7 which, in front of the supply line to the upper boundary wall of the upper compartment: Dosing cylinder 10
are connected to each other. In the lower one, at
a constant liquid water reservoir

Maintain constant water temperature. The top compartment of the hot water tank is over