Beverage dispensing unit of a beverage maker, and beverage maker

Description

[0001] A beverage dispensing unit of a beverage maker is provided, comprising a first valve for controlling the dispensing of a beverage, which has two ports, an open switching position and a closed switching position, a first valve inlet fluid line with an inlet end that is connectable to or connected with a first fluid line of a beverage maker, and an outlet end that is fluidically connected to a first port of the first valve, as well as a first valve outlet fluid line with an inlet end that is fluidically connected to a second port of the first valve, and an outlet end that is suitable for dispensing a beverage into an external environment of the beverage dispensing unit, characterized in that the first valve outlet fluid line has a length of ≤ 5 cm and an inner diameter in the range of > 0 to ≤ 7 mm.

[0002] A beverage dispensing unit is the central component for a coffee machine's beverage dispenser. In modern coffee machines, this component typically houses several fluid paths, such as those for freshly brewed coffee or frothed milk. Additional fluid paths are possible (for example, for syrup, hot water, various milk alternatives, etc.).

[0003] Viewed in the direction of fluid flow, the beverage dispenser is immediately followed by a beverage dispensing unit, typically located below a drinking container. If the beverage is dispensed to only one drinking container, this is referred to as single dispensing. Conversely, it is possible to dispense the beverage to two drinking containers simultaneously, in which case it is referred to as double dispensing. Therefore, the beverage dispenser must have at least two outlets for the same type of fluid (coffee, frothed milk, syrup, white water, etc.) to enable both single and double dispensing. Furthermore, it is advantageous if each fluid path of the beverage dispenser is connected to a drain that leads into a spout. This allows, for example, rinsing processes for cleaning the fluid paths and / or the drainage of excess fluid into the spout.

[0004] In general, beverage dispensers known in the prior art have an outlet for dispensing beverages to a drinking container and a drain to a spout, and are equipped with discrete valves, such as 3 / 2-way hinged valves.

[0005] DE 600 05 276 T2 discloses a beverage maker comprising a water supply unit, a water intake unit, water channels for water supply, and channels for receiving water. A water distributor is provided that selectively allows the flow of water from the water supply unit to the channels for receiving water. For this purpose, the water distributor has a rotating plate driven by an electric motor and a recess suitable for connecting an outlet end of the water supply channels to an inlet end of the channels for receiving water by rotating the plate to a specific angular position. The rotating plate is not located in the beverage dispensing unit of the beverage maker.

[0006] DE 10 2008 041122 A1 discloses a ceramic disc valve for the distribution of hot water and / or steam in a hot beverage dispenser. The ceramic disc valve has a valve housing with valve discs arranged in a stack therein, of which at least one valve disc is an adjustable control disc with at least one channel bore, and at least one valve disc is a fixed valve disc. A distribution recess is provided in an inlet section and / or in an outlet section, connecting several inlet channels and / or several outlet channels. The ceramic disc valve is not located in the beverage dispensing unit of the beverage dispenser.

[0007] Generally, it is desirable to have a beverage, such as coffee or a coffee-based mixed drink, prepared by a beverage maker that offers optimal taste, temperature, and visual appeal. This is not reliably achievable if the beverage maker is not designed to prevent dripping from a freshly prepared beverage into the beverage container. In common beverage makers, the valves are positioned relatively far from the dispensing unit, making it difficult to reliably prevent dripping.

[0008] It is known in the prior art to reduce this problem by switching the valves of the beverage dispensers to a position that connects the beverage line to a drain of the dispenser after a beverage has been dispensed. However, this measure only partially succeeds in reliably preventing dripping, as it cannot be guaranteed that beverages located in a line downstream of the valve will not reach the outlet and cause dripping. This can negatively affect the quality of the beverage dispensed from the dispenser and also of any subsequent beverages dispensed from the dispenser, i.e., negatively impair their taste (e.g., making them less fresh or bland) and deteriorate their appearance (e.g.,This can result in an inconsistent appearance of the beverage between a single and a double serving of the same beverage, as well as undesirably altering its temperature (e.g. reducing it to an undesirably low temperature).

[0009] DE 11 2018 002 571 T5 discloses a coffee machine that proposes a further solution to this problem. This coffee machine has a coffee nozzle whose distal end is positioned above a coffee cup and whose proximal end has an intermediate storage nozzle suitable for supplying coffee to the coffee nozzle. Furthermore, a side surface of the coffee nozzle has a lateral discharge section suitable for diverting a portion of the coffee, whose flow rate is reduced compared to a conventional flow rate during preparation (for example, at the end of preparation), directly from the intermediate storage nozzle into a drain (i.e., preventing it from reaching the coffee nozzle in the first place), thereby reducing dripping of coffee from the coffee nozzle.A significant drawback, however, is that the drainage mechanism depends on the flow rate of the brewed coffee through the intermediate storage nozzle. This creates a risk that at least some of the coffee will be mistakenly diverted into the drain before brewing is complete. This can make the brewing process inefficient and makes it difficult to reliably dispense the optimal (i.e., desired) amount of coffee.

[0010] US Patent 2023 / 045194 A1 discloses a combined hot water dispenser and beverage maker comprising a water heating section and a water storage section, wherein the water heating section includes a boiler tank, a heating element, a first water drain mechanism and a second drain mechanism, and the water storage section includes a cold water tank and a hot water tank arranged above the boiler tank.

[0011] US 9 271 604 B2 discloses a distributor for a liquid dispensing system comprising at least two layers, wherein the first layer has several through holes along its thickness direction and one or more liquid channels perpendicular to the thickness direction, and the second layer has one or more through holes along its thickness direction, each of which is connected to one of the through holes of the first layer, and also one or more liquid channels perpendicular to the thickness direction.

[0012] DE 21 60 512 A1 discloses a dispensing valve, in particular a dispensing valve for the selective dispensing of one of five syrup-enriched, carbonated mixed drinks, carbonated water alone and / or non-carbonized water alone.

[0013] Based on this, the object of the present invention was to provide a beverage dispensing unit for a beverage dispenser, as well as a beverage dispenser itself, that overcomes at least one of the disadvantages of the prior art. In particular, the beverage dispensing unit and the beverage dispenser should make it possible to reliably prevent dripping of beverage after dispensing and to economically dispense a beverage that has optimal properties (i.e., a desired taste, a desired temperature, a desired beverage volume, and a perfect appearance). Preferably, it should also be possible to dispense a beverage with the beverage dispensing unit and the beverage dispenser that has an appearance that does not differ between a single and a double dispensing of the beverage (e.g., an identical appearance with regard to milk foam crema).

[0014] The problem is solved by the beverage dispensing unit with the features of claim 1 and the coffee machine with the features of claim 14. Preferred embodiments of the items according to the invention are listed in the dependent claims.

[0015] According to the invention, a beverage dispensing unit of a beverage maker is provided, comprising: a) a first valve (e.g. a first coffee valve) for controlling the dispensing of a beverage (e.g. coffee), wherein the first valve has at least two ports, an open switching position and a closed switching position; b) a first valve inlet fluid line with an inlet end that is connectable to or connected with a first fluid line of a beverage maker and an outlet end that is fluidically connected to a first port of the first valve; c) a first valve outlet fluid line with an inlet end that is fluidically connected to a second port of the first valve and an outlet end (i.e. a beverage outlet) suitable for dispensing a beverage into an external environment of the beverage dispensing unit; characterized in that the first valve outlet fluid line has a length of ≤ 5 cm and an inner diameter in the range of > 0 mm to ≤ 7 mm, wherein the first valve has at least three ports, wherein the beverage dispensing unit further comprises: i) a second valve for controlling the dispensing of liquid into a drain, wherein the second valve has at least two ports, an open switching position and a closed switching position; ii) a second valve inlet fluid line with an inlet end fluidically connected to a third port of the first valve and an outlet end fluidically connected to a first port of the second valve; and iii) a second valve outlet fluid line with an inlet end fluidically connected to the second port of the second valve and an outlet end suitable for dispensing a beverage into a drain of the beverage dispensing unit.

[0016] If the first valve outlet fluid line does not have a round cross-section (but, for example, a rectangular cross-section), the specification of the inner diameter refers to the maximum extent that the interior of the first valve outlet fluid line has in a spatial direction that extends along a cross-section of the first valve outlet fluid line (i.e., lies on the cross-section or is parallel to the cross-section). This can also apply to further valve outlet fluid lines, optionally all valve outlet fluid lines, that the beverage dispensing unit according to the invention has (see below).

[0017] The beverage dispensing unit makes it possible to reliably prevent dripping of beverage from the outlet end of the first valve outlet fluid line and to economically provide a beverage with optimal properties (i.e., desired taste, desired temperature, desired beverage volume and perfect appearance).

[0018] One reason for this is that the beverage dispensing unit contains a valve that controls the flow of a beverage. Switching the valve to its closed position at the end of the beverage preparation prevents further beverage from flowing from the valve inlet fluid line to the fluid outlet fluid line; in other words, the flow of beverage can be interrupted by controlling the valve. Furthermore, switching the valve to the closed position creates a vacuum on any remaining liquid column within the valve outlet fluid line, reducing the risk of this column escaping and causing dripping. This minimizes the risk of dripping. Additionally, switching the fluid path via the valve prevents any beverage from accidentally entering the drain during preparation.the "drain"), which allows for a more economical provision of a beverage and better ensures that an optimal (i.e. desired) beverage volume is provided.

[0019] Furthermore, the internal volume of the valve outlet fluid line is very small due to its dimensions (i.e., its short length and small inner diameter), meaning that even if a negative pressure restraining the liquid column in the valve outlet fluid line fails when the valve is closed, and a restraining capillary action due to its small inner diameter fails, only minimal and brief dripping can occur. Overall, a beverage with optimal drinking properties and a low risk of dripping can therefore be provided with a high degree of certainty.

[0020] Another advantage is that the small internal volume of the valve outlet fluid line allows for warm and hygienic rinsing right up to the outlet end (i.e., to the spout) of the beverage dispensing unit using a small amount of cleaning agent and without any liquid leaking from the spout. Different types of beverages (e.g., coffee and / or milk varieties) can be dispensed with virtually no cross-contamination. Furthermore, the beverage temperature can be higher after a warm rinse, meaning an optimal beverage temperature can be better ensured even after a warm rinse. With sporadic warm rinses, disruptive warning signals are no longer necessary. Additionally, contamination in the dispensing area of ​​the beverage unit can be reduced, as sporadic warm rinsing right up to the spout is possible. If a drip tray is located under the beverage dispensing unit, little to no beverage (e.g., coffee) will remain on the spout.Coffee and / or milk foam) are in the drip tray.

[0021] An additional advantage is that maintenance of the first valve is made easier, as the outlet is very easily accessible from the outside due to the short valve outlet fluid line; i.e., the beverage dispensing unit does not need to be opened to access the first valve.

[0022] The first valve outlet fluid line can have a length of ≤ 4 cm, preferably ≤ 3 cm, particularly preferably ≤ 2 cm, and especially ≤ 1 cm. Furthermore, the first valve outlet fluid line can have an inner diameter in the range of > 0 mm to ≤ 6 mm, preferably in the range of > 0 mm to ≤ 5 mm, particularly preferably in the range of > 0 mm to ≤ 4 mm, and most preferably in the range of > 0 mm to ≤ 3 mm, and especially in the range of > 0 mm to ≤ 2 mm. The shorter the length and the smaller the inner diameter, the smaller the internal volume of this valve outlet fluid line and the greater the advantages of the invention.

[0023] According to the invention, the first valve of the beverage dispensing unit has at least three connections, the beverage dispensing unit further comprising: i) a second valve (= drain valve) for controlling the dispensing of liquid into a drain, wherein the second valve has at least two ports, an open switching position and a closed switching position, and wherein the second valve is optionally a check valve; ii) a second valve inlet fluid line with an inlet end fluidically connected to a third port of the first valve and an outlet end fluidically connected to a first port of the second valve; and iii) a second valve outlet fluid line with an inlet end fluidically connected to the second port of the second valve and an outlet end suitable for dispensing a beverage into a drain of the beverage dispensing unit.

[0024] The second valve (the drain valve) allows excess beverage to be dispensed into the drain. For example, if the first valve (e.g., the first coffee valve) is open and the second valve (e.g., the drain valve) is closed, a beverage is dispensed from the outlet of the first valve's fluid line (i.e., the first valve's outlet). Conversely, if the first valve is closed, a beverage is dispensed into the drain. The valves can be actuated by a common actuator and lever (i.e., reciprocally / complementarily) or independently by two separate actuators. The drain valve can also be designed as a passive check valve.

[0025] The first valve is preferably configured such that, in its closed position, a fluid-conducting connection exists between its first and third ports. The advantage of this is that, when the first valve is closed (i.e., when the beverage dispenser is closed), a beverage can flow through the first valve into the drain. This more reliably prevents unwanted dripping from the outlet.

[0026] The beverage dispensing unit may also feature: i) a third valve (e.g. a second coffee valve) for controlling the dispensing of a beverage (e.g. coffee), wherein the third valve has at least two ports, an open switching position and a closed switching position; ii) a third valve inlet fluid line with an inlet end fluidically connected to the first valve inlet fluid line and an outlet end fluidically connected to a first port of the third valve; and iii) a third valve outlet fluid line with an inlet end fluidically connected to a second port of the third valve and an outlet end suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0027] The advantage of feature ii) is that a beverage (e.g., coffee) can flow from the first beverage intake fluid line of the beverage dispensing unit (which can be connected to the beverage maker) into the third valve via the third beverage intake fluid line, thus allowing the beverage to be dispensed (simultaneously) from both the outlet end of the first valve's output fluid line and the outlet end of the third valve's output fluid line. This also enables switching between single and double dispensing.

[0028] The third valve outlet fluid line can have a length of ≤ 5 cm, preferably ≤ 4 cm, particularly preferably ≤ 3 cm, most preferably ≤ 2 cm, and more preferably ≤ 1 cm. Furthermore, the third valve outlet fluid line can have an inner diameter in the range of > 0 mm to ≤ 7 mm, preferably in the range of > 0 mm to ≤ 6 mm, particularly preferably in the range of > 0 mm to ≤ 5 mm, most preferably in the range of > 0 mm to ≤ 4 mm, and more preferably in the range of > 0 mm to ≤ 3 mm, and optionally in the range of > 0 mm to ≤ 2 mm. The shorter the length and the smaller the inner diameter, the smaller the internal volume of this valve outlet fluid line and the greater the advantages of the invention.

[0029] The third valve can have at least three ports, with the third port of the third valve being fluidically connected to the second valve inlet fluid line of the second valve. The advantage here is that the third valve has a connection to the drain, allowing excess beverage to be discharged into the drain, thus preventing dripping even more reliably.

[0030] The second valve inlet fluid line can have an inlet end that is fluidically connected to a third port of the first valve and an outlet end that is fluidically connected to a first port of a second valve of the beverage maker.

[0031] Furthermore, the third valve can be configured such that, in its closed position, a fluid-conducting connection exists between the first and third ports of the third valve. The advantage of this is that, with the third valve closed (i.e., the beverage dispenser closed), a beverage can flow through the third valve into the drain, thus preventing dripping even more reliably.

[0032] In addition, the beverage dispensing unit may also contain: i) a fourth valve (e.g. a centrally located milk valve) for controlling the dispensing of a beverage (e.g. milk or milk foam), wherein the fourth valve has at least two ports, an open switching position and a closed switching position; ii) a fourth valve inlet fluid line with an inlet end that is connectable to or connected with a second fluid line of a beverage maker and an outlet end that is fluidically connected to a first port of the fourth valve; iii) a fourth valve outlet fluid line with an inlet end that is fluidically connected to a second port of the fourth valve and an outlet end that is suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0033] The advantage here is that a beverage (e.g., milk or milk foam) can also be dispensed via the fourth valve (e.g., centrally into a beverage container). Another advantage is that the beverage (e.g., milk or milk foam) can be dispensed from the fourth valve in both single and double dispensing scenarios, meaning that, in the case of a centrally located fourth valve, it is positioned concentrically with the cup. This results in an identical and visually appealing beverage appearance for both single and double dispensing. Unsightly double peaks in the beverage container (e.g., a cup) are prevented.

[0034] The fourth valve outlet fluid line can have a length of ≤ 5 cm, preferably ≤ 4 cm, particularly preferably ≤ 3 cm, most preferably ≤ 2 cm, and in particular ≤ 1 cm. Furthermore, the fourth valve outlet fluid line can have an inner diameter in the range of > 0 mm to ≤ 7 mm, preferably in the range of > 0 mm to ≤ 6 mm, particularly preferably in the range of > 0 mm to ≤ 5 mm, most preferably in the range of > 0 mm to ≤ 4 mm, and in particular in the range of > 0 mm to ≤ 3 mm, optionally in the range of > 0 mm to ≤ 2 mm. The shorter the length and the smaller the inner diameter, the smaller the internal volume of this valve outlet fluid line and the greater the advantages of the invention. If the fourth valve is a milk valve, the milk foam quality can also be increased with minimal loss of milk foam (i.e., economically) by "cutting off" the beginning and end of the milk foam output.

[0035] The beverage dispensing unit may also contain: i) a fifth valve (e.g., a decentralized first milk valve) for controlling the dispensing of a beverage (e.g., milk or milk foam), wherein the fifth valve has at least two ports, an open switching position, and a closed switching position; ii) a fifth valve inlet fluid line with an inlet end that is fluidically connectable to, or is connected to, a third fluid line of a beverage maker, or to a third port of the fourth valve, and an outlet end that is fluidically connected to a first port of the fifth valve; iii) a fifth valve outlet fluid line with an inlet end that is fluidically connected to a second port of the fifth valve and an outlet end suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0036] The advantage here is that a beverage (e.g., milk or milk foam) can also be dispensed via the fifth valve (e.g., decentrally into a beverage dispenser, for example, on the left). If the inlet end of the fifth valve's fluid line is fluidically connected to a third fluid line of a beverage dispenser (e.g., an almond milk line), then a beverage different from the one dispensed via the fourth valve can be dispensed (with strict local separation) via the fifth valve (e.g., almond milk via the fifth valve and cow's milk via the fourth valve).

[0037] The fifth valve outlet fluid line can have a length of ≤ 5 cm, preferably ≤ 4 cm, particularly preferably ≤ 3 cm, most preferably ≤ 2 cm, and in particular ≤ 1 cm. Furthermore, the fifth valve outlet fluid line can have an inner diameter in the range of > 0 mm to ≤ 7 mm, preferably in the range of > 0 mm to ≤ 6 mm, particularly preferably in the range of > 0 mm to ≤ 5 mm, most preferably in the range of > 0 mm to ≤ 4 mm, and in particular in the range of > 0 mm to ≤ 3 mm, optionally in the range of > 0 mm to ≤ 2 mm. The shorter the length and the smaller the inner diameter, the smaller the internal volume of this valve outlet fluid line and the greater the advantages of the invention.

[0038] The fourth valve can be configured such that, in its closed position, a fluid connection exists between the first and third ports of the fourth valve. This has the advantage that, when the fourth valve is closed, the beverage (e.g., milk) can flow to the fifth valve. Thus, while the beverage is not dispensed via the fourth valve (e.g., a centrally located milk valve), it is dispensed via the fifth valve (e.g., a first, decentralized milk valve), allowing for location-selective dispensing of a beverage (e.g., milk or milk foam).In principle, this measure allows a different beverage to be dispensed via the fifth valve than via the fourth valve, for example almond milk instead of cow's milk, if a user manually changes the milk source of a beverage maker connected to the second fluid line, or if the beverage maker is configured to change the milk source (e.g., configured to switch between different milk sources).

[0039] The fifth valve can have at least three ports, wherein the third port of the fifth valve is fluidically connected to a third port of a second valve of the beverage dispensing unit. Preferably, the fifth valve is configured such that, in a closed switching position of the fifth valve, a fluid-conducting connection exists between the first and third ports of the fifth valve. This has the advantage that a beverage can still enter the drain even when the fifth valve is closed, thus preventing dripping even more reliably.

[0040] The beverage dispensing unit may also contain: i) a sixth valve (e.g., a decentralized second milk valve) for controlling the dispensing of a beverage (e.g., milk or milk foam), wherein the sixth valve has at least two ports, an open switching position, and a closed switching position; ii) a sixth valve inlet fluid line with an inlet end that is fluidically connectable to, or is connected to, a fourth fluid line of a beverage maker, or to a fourth port of the fourth valve, and an outlet end that is fluidically connected to a first port of the sixth valve; iii) a sixth valve outlet fluid line with an inlet end that is fluidically connected to a second port of the sixth valve and an outlet end suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0041] The advantage here is that a beverage (e.g., milk or milk foam) can also be dispensed via the sixth valve (e.g., decentrally into a beverage dispenser, for example, decentrally on the right). If the inlet end of the fifth valve's fluid line is fluidically connected to a fourth fluid line of a beverage dispenser (e.g., an oat milk line), then a beverage different from the fourth and / or third valve can be dispensed via the fifth valve (e.g., oat milk via the sixth valve, almond milk via the fifth valve, and cow's milk via the fourth valve).

[0042] The sixth valve outlet fluid line can have a length of ≤ 5 cm, preferably ≤ 4 cm, particularly preferably ≤ 3 cm, most preferably ≤ 2 cm, and more preferably ≤ 1 cm. Furthermore, the sixth valve outlet fluid line can have an inner diameter in the range of > 0 mm to ≤ 7 mm, preferably in the range of > 0 mm to ≤ 6 mm, particularly preferably in the range of > 0 mm to ≤ 5 mm, most preferably in the range of > 0 mm to ≤ 4 mm, and more preferably in the range of > 0 mm to ≤ 3 mm, and optionally in the range of > 0 mm to ≤ 2 mm. The shorter the length and the smaller the inner diameter, the smaller the internal volume of this valve outlet fluid line and the greater the advantages of the invention.

[0043] The fourth valve can be configured such that, in its closed position, a fluid connection exists between the first and fourth ports of the fourth valve. This has the advantage that, when the fourth valve is closed, the beverage (e.g., milk) can flow to the sixth valve. Thus, while the beverage is not dispensed via the fourth valve (e.g., a centrally located milk valve), it is dispensed via the sixth valve (e.g., a second, decentralized milk valve), allowing for location-selective dispensing of a beverage (e.g., milk or milk foam).This measure allows, in principle, a different beverage to be dispensed via the sixth valve than via the fourth valve, for example, oat milk instead of cow's milk, if a user manually switches a milk source of a beverage maker connected to the second fluid line, or if the beverage maker is configured to switch milk sources (e.g., to switch between different milk sources). Furthermore, it is conceivable that a beverage (e.g., milk or milk foam) is dispensed not via the fourth valve (e.g., as a central single dispensing point), but via both the fifth and sixth valves (e.g., as a decentralized dual dispensing point).

[0044] The sixth valve can have at least three ports, wherein the third port of the sixth valve is fluidically connected to a third port of a second valve of the beverage dispensing unit, and preferably the sixth valve is configured such that in a closed switching position of the sixth valve, a fluid-conducting connection exists between the first and third ports of the sixth valve. This has the advantage that a beverage can still enter the drain even when the sixth valve is closed, thus preventing dripping even more reliably.

[0045] The first valve can be selected from the group consisting of electrically switchable valves, hydraulically switchable valves, pneumatically switchable valves and combinations thereof, wherein the first valve is preferably an electrically switchable valve.

[0046] Furthermore, the first valve can have an actuator suitable for switching the first valve. The actuator is preferably selected from the group consisting of a solenoid, a linear motor, a piezoelectric element, and combinations thereof. A third valve of the beverage dispensing unit can also have the switchable actuator, which can be suitable for switching the first and third valves in the same way (i.e., simultaneously switching them to their open and / or closed positions). A second valve of the beverage dispensing unit (drain valve) can further include a second actuator suitable for switching the second valve. A fourth valve of the beverage dispensing unit can also include a third actuator suitable for switching the fourth valve.Furthermore, a fifth and sixth valve of the beverage dispensing unit may include a fourth actuator suitable for switching the fifth and sixth valves, preferably in the same way (i.e., switching them simultaneously to their open switching position and / or their closed switching position).

[0047] Furthermore, the first valve can have a plunger that, driven by an actuator of the first valve, is capable of switching the first valve by its movement. Preferably, the plunger has an axially and / or radially outwardly projecting lip at a contact surface with the inlet end of the first valve outlet fluid line. The advantage is that the inlet end of the first valve outlet fluid line can be sealed more reliably in a fluid-tight manner. The plunger preferably has an elastic element, particularly preferably a spring, that is capable of holding the first valve in its closed or open switching position. The valve can thus be considered a plunger valve.

[0048] Apart from that, the first valve can have an elastic material, preferably an elastic diaphragm, which is suitable for sealing the inlet end of the first valve outlet fluid line in a fluid-tight manner when the first valve is in a closed switching position. The valve can thus be considered a diaphragm valve.

[0049] The first valve can have at least one port whose internal cross-sectional area decreases in the direction of the fluid lines connected to that port, preferably decreasing from a larger internal cross-sectional area than the internal cross-sectional area of ​​the fluid lines to an internal cross-sectional area identical to the internal cross-sectional area of ​​the fluid lines. The advantage of this is that "resting zones" are created for the beverage, which can lead to a more homogeneous beverage (e.g., more homogeneous coffee and / or more homogeneous milk foam).

[0050] Optionally, at least one additional valve of the beverage dispensing unit, or optionally all valves of the beverage dispensing unit, may have at least one of the above-mentioned features (of the first valve).

[0051] The outlet end of the first valve outlet fluid line (i.e., the outlet) can be identical to the outlet end of the third, fourth, fifth, and / or sixth valve outlet fluid line (identical outlet). Furthermore, the outlet end of the first valve outlet fluid line (i.e., the outlet) can be different from the outlet end of the third, fourth, fifth, and / or sixth valve outlet fluid line (different outlet).

[0052] The outlet end of the first valve outlet fluid line can be configured to dispense a beverage along a substantially linear axis to the external environment of the beverage dispensing unit. The substantially linear axis is preferably arranged within an imaginary cylinder whose central cylinder axis is parallel to the substantially linear axis, the imaginary cylinder having a radius in the range of 3 to 6 cm, preferably 3.5 to 5.5 cm, particularly preferably 4 to 5 cm, and especially 4.5 cm.

[0053] The outlet end of the first valve outlet fluid line can have a distance to the central cylinder axis of the imaginary cylinder that is in the range of 0 to 6 cm, preferably 0.5 to 5 cm, particularly preferably 1 to 4 cm, most preferably 2 to 3 cm, in particular 2.5 cm.

[0054] Furthermore, the outlet end of a third valve outlet fluid line of the beverage dispensing unit can have a distance from the central cylinder axis of the imaginary cylinder in the range of 0 to 6 cm, preferably 0.5 to 5 cm, particularly preferably 1 to 4 cm, and most preferably 2 to 3 cm, particularly 2.5 cm. Optionally, the distance between the outlet end of the third valve outlet fluid line and the outlet end of the first valve outlet fluid line is in the range of 2 to 4 cm, preferably 2.5 to 3.5 cm, particularly 3 cm. The advantage is that the third valve outlet fluid line is located very close to the first valve outlet fluid line, and thus, during beverage dispensing, liquid flowing through the third valve can be dispensed into the same beverage container as liquid flowing through the first valve.

[0055] Furthermore, the outlet end of a fourth valve outlet fluid line of the beverage dispensing unit can have a distance from the central cylinder axis of the imaginary cylinder in the range of 0 to 2 cm, preferably 0.25 to 1.75 cm, particularly preferably 0.5 to 1.5 cm, and most preferably 0.75 to 1.25 cm, particularly 1 cm. Optionally, the distance between the outlet end of the fourth valve outlet fluid line and the outlet end of the first valve outlet fluid line is in the range of 2 to 4 cm, preferably 2.5 to 3.5 cm, particularly 3 cm. The advantage is that the fourth valve outlet fluid line is located very close to the first valve outlet fluid line, and thus, during beverage dispensing, a liquid flowing through the fourth valve can be dispensed into the same beverage container as a liquid flowing through the first valve.

[0056] Furthermore, the outlet end of a fifth valve outlet fluid line of the beverage dispensing unit can be located at a distance from the central cylinder axis of the imaginary cylinder of 1 to 4 cm, preferably 1.5 to 3.5 cm, and particularly preferably 2 to 3 cm, especially 2.5 cm. Optionally, the distance between the outlet end of the fifth valve outlet fluid line and the outlet end of the first valve outlet fluid line can be in the range of 3 to 7 cm, preferably 4 to 6 cm, and particularly 5 cm. The advantage is that the fifth valve outlet fluid line is located very close to the first valve outlet fluid line, thus allowing liquid flowing through the fifth valve to be dispensed into the same beverage container as liquid flowing through the first valve.

[0057] Furthermore, the outlet end of a sixth valve outlet fluid line of the beverage dispensing unit can have a distance from the central cylinder axis of the imaginary cylinder in the range of 1 to 4 cm, preferably 1.5 to 3.5 cm, particularly preferably 2 to 3 cm, and especially 2.5 cm, wherein the distance between the outlet end of the sixth valve outlet fluid line and the outlet end of a fifth valve outlet fluid line is optionally in the range of 2 to 5 cm, preferably 3 to 4 cm, and especially 3.5 cm. The advantage is that the sixth valve outlet fluid line is located very close to the first valve outlet fluid line, and thus, during beverage dispensing, a liquid flowing through the sixth valve can be dispensed into the same beverage container as a liquid flowing through the first valve.

[0058] According to the invention, a coffee machine is also provided, containing i) a beverage dispensing unit according to the invention, wherein preferably the inlet end of the first valve inlet fluid line of the beverage dispensing unit is connected to a first coffee line of the coffee machine and particularly preferably an inlet end of a fourth valve inlet fluid line of the beverage dispensing unit is connected to a milk line of the coffee machine; and ii) a control unit configured to control at least one valve, preferably all valves, of the beverage dispensing unit.

[0059] In a particularly preferred embodiment, not only is an inlet end of a fourth valve inlet fluid line connected to a milk line of the coffee machine, but also an inlet end of a fifth valve inlet fluid line and an inlet end of a sixth valve inlet fluid line. This results in a fluid path for the fluid medium milk or milk foam leading to at least three outlets of the beverage dispensing unit. Here, control for single dispensing (dispensing to a single beverage container) by the control unit ensures that only a single outlet is open, while control for dual dispensing (dispensing to two beverage containers simultaneously) by the control unit ensures that only a single outlet is open for each of the two beverage containers.Preferably, these three outlets are arranged in the beverage dispensing unit such that, in single dispensing, one of the three outlets is positioned centrally above the beverage container, and in double dispensing, two of the three outlets are positioned centrally above their respective beverage containers. This allows for the production of a beverage in the beverage container that is identical to the visual appearance of a double dispensing unit.

[0060] The coffee machine's control unit can be configured to open the first valve when the coffee machine has received a command to dispense coffee into a single beverage container.

[0061] Furthermore, the control unit can be configured to open the first valve and a third valve of the beverage dispensing unit when the coffee machine has received a command to dispense coffee into a single or two beverage containers.

[0062] Apart from that, the control unit can be configured to switch a second valve of the beverage dispensing unit complementary to the first valve, optionally also to a third, fourth, fifth and / or sixth valve of the beverage dispensing unit, preferably to close when the coffee machine has received a command to dispense a beverage and to open when the coffee machine has not received a command to dispense a beverage.

[0063] In addition, the control unit can be configured to open a fourth valve of the beverage dispensing unit when the coffee machine has received a command to dispense a fluid containing or consisting of milk into a single beverage container.

[0064] Furthermore, the control unit can be configured to open a fifth and sixth valve of the beverage dispensing unit and to close a fourth valve of the beverage dispensing unit when the coffee machine has received a command to dispense a fluid containing or consisting of milk into a single beverage container (dual dispensing into a single beverage container) or into two beverage containers (single dispensing into each beverage container).

[0065] The following figures are intended to explain the subject matter of the invention in more detail, without limiting it to the specific embodiments shown here.

[0066] Figure 1Figure 1 schematically shows a cross-section of a beverage dispensing unit according to the invention. The beverage dispensing unit comprises a first valve 1 (first coffee valve) for controlling the dispensing of a beverage (coffee), wherein the first valve 1 has three ports 2, 3, 10, an open switching position, and a closed switching position. Furthermore, the beverage dispensing unit has a first valve inlet fluid line 4 with an inlet end 5, which can be connected to a first fluid line of a beverage maker, and an outlet end 6, which is fluidically connected to a first port 2 of the first valve 1. In addition, the beverage dispensing unit has a first valve outlet fluid line (not shown) with an inlet end 8, which is fluidically connected to a second port 3 of the first valve 1, and an outlet end (not shown) suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0067] Furthermore, the beverage dispensing unit includes a second valve 11 (active or passive drain valve) for controlling the dispensing of liquid into a drain, wherein the second valve 11 has three ports 12, 13, 50, an open switching position, and a closed switching position. The beverage dispensing unit also includes a second valve inlet fluid line 14 with an inlet end 15 fluidically connected to a third port 10 of the first valve 11 and an outlet end 16 fluidically connected to a first port 12 of the second valve 11. Additionally, the beverage dispensing unit includes a second valve outlet fluid line (not shown) with an inlet end 18 fluidically connected to the second port 13 of the second valve 11 and an outlet end (not shown) suitable for dispensing a beverage into a drain of the beverage dispensing unit.

[0068] Apart from this, the beverage dispensing unit includes a third valve 20 (2nd coffee valve) for controlling the dispensing of a beverage (coffee), wherein the third valve 20 has three ports 21, 22, 29, an open switching position, and a closed switching position. Furthermore, the beverage dispensing unit has a third valve inlet fluid line 23 with an inlet end 24 that is fluidically connected to the first valve inlet fluid line 4, and an outlet end 25 that is fluidically connected to a first port 21 of the third valve 20. Additionally, the beverage dispensing unit has a third valve outlet fluid line (not shown) with an inlet end 27 that is fluidically connected to a second port 22 of the third valve 20, and an outlet end (not shown) suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0069] Furthermore, the beverage dispensing unit includes a fourth valve 30 (central milk valve) for controlling the dispensing of a beverage (milk or milk foam), wherein the fourth valve 30 has four ports 31, 32, 39, 51, an open switching position, and a closed switching position. The beverage dispensing unit also includes a fourth valve inlet fluid line 33 with an inlet end 34 that can be connected to a second fluid line (not shown) of a beverage maker, and an outlet end 35 that is fluidically connected to a first port 31 of the fourth valve 30. Additionally, the beverage dispensing unit includes a fourth valve outlet fluid line (not shown) with an inlet end 37 that is fluidically connected to a second port 32 of the fourth valve 30, and an outlet end (not shown) suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0070] The beverage dispensing unit further includes a fifth valve 40 for controlling the dispensing of a beverage, wherein the fifth valve 40 has three ports 41, 42, 49, an open switching position, and a closed switching position. The beverage dispensing unit also includes a fifth valve inlet fluid line 43 with an inlet end 44 fluidically connected to a third port 39 of the fourth valve 30, and an outlet end 45 fluidically connected to a first port 41 of the fifth valve 40. Additionally, the beverage dispensing unit includes a fifth valve outlet fluid line (not shown) with an inlet end 47 fluidically connected to a second port 42 of the fifth valve 40 and an outlet end (not shown) suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0071] Additionally, the beverage dispensing unit includes a sixth valve 52 for controlling the dispensing of a beverage, wherein the sixth valve 52 has three ports 53, 54, 61, an open switching position, and a closed switching position. Furthermore, the beverage dispensing unit includes a sixth valve inlet fluid line 55 with an inlet end 56 fluidically connected to a fourth port 51 of the fourth valve 30, and an outlet end 57 fluidically connected to a first port 53 of the sixth valve 52. The beverage dispensing unit also includes a sixth valve outlet fluid line (not shown) with an inlet end 59 fluidically connected to a second port 54 of the sixth valve 52, and an outlet end (not shown) suitable for dispensing a beverage into an external environment of the beverage dispensing unit.

[0072] The first, second, third, fourth, fifth, and sixth valve outlet fluid lines (not shown) each have a length of only ≤ 5 cm and an inner diameter ranging from > 0 to ≤ 3 mm. This reliably reduces dripping of beverage at the outlet end of each valve outlet fluid line, i.e., at the outlet of the respective valves.

[0073] Furthermore, the beverage dispensing unit contains another valve 100, which can be an active or passive additional drain valve.

[0074] Valve 100 and / or valve 11 can each be connected separately or together to an actively or passively controlled valve in the fluid flow.

[0075] Figure 2Figure 1 schematically shows a low-angle view of a beverage dispensing unit according to the invention. In this view, the first valve outlet fluid line 7 (first coffee line) and its outlet end 9, the second valve outlet fluid line 17 (drain line) and its outlet end 19, the third valve outlet fluid line 26 (second coffee line) and its outlet end 28, the fourth valve outlet fluid line 36 (central milk line) and its outlet end 38, the fifth valve outlet fluid line 46 (first decentralized milk line) and its outlet end 48, and the sixth valve outlet fluid line 58 (second decentralized milk line) and its outlet end 60 are visible. The inlet end 5 of the first valve inlet fluid line (connected to a first fluid line of a beverage maker, e.g., a coffee machine) is also visible.a coffee line of a beverage maker, which can be connected) and the inlet end 34 of the fourth valve inlet fluid line (which can be connected to a second fluid line of a beverage maker, e.g. a milk line of a beverage maker) is shown. Furthermore, this beverage dispensing unit also features a multitude of lines 67, 67', 67", 67‴, 67ʺʺ for beverage syrup, each with inlet ends 68, 68', 68", 68‴, 68ʺʺ and outlet ends 69, 69', 69", 69‴, 69ʺʺ. In addition, this beverage dispensing unit also includes a line 70 for chocolate syrup with an inlet end 71 and an outlet end 72. The multiple lines 67, 67', 67", 67"', 67ʺʺ for beverage syrup and the line 70 for chocolate syrup each lack a valve; that is, flow is possible in these lines without the valves located in the beverage dispensing unit.

[0076] Figure 3Figure 1 schematically shows a structure of valves that can be included in the beverage dispensing unit according to the invention. These valves each have an elastic element 62 (here: a spring), a plunger 64, and an elastic material 65 (here: an elastic diaphragm). Each valve has an actuator 63, 63', 63", 63‴, which is suitable for switching the valves, i.e., switching them from their open switching position to their closed switching position and / or vice versa. For example, it is possible that the elastic element holds the respective valves in their closed switching position and the respective actuator 63, 63', 63", 63‴ is suitable for switching the respective valves to their open switching position. The reverse is, of course, also possible.

[0077] Figure 4 schematically shows in more detail a structure of one of the in Figure 3The valves shown, although the actuator is not shown, are depicted. In this illustration, the valve plunger 64 is visible, which, via the force of an elastic element 62 (here: a spring), presses against an elastic material 65 (here: an elastic diaphragm), thus holding the valve in its closed switching position. The plunger also has a lip 66, which enables a better seal between the inlet end 8 of the valve outlet fluid line and the second port 3 of the valve.

[0078] Figure 5Figure 1 schematically shows a top-down oblique view of a beverage dispensing unit according to the invention and a cross-section through the beverage dispensing unit according to the invention. In this view, the first valve 1 (e.g., first coffee valve), as well as the first port 2 and the second port 3 of the first valve 1, are visible, and the first valve inlet fluid line 4 with its inlet end 5 and its outlet end 6 is shown. Furthermore, the first valve outlet fluid line 7 with its inlet end 8 and its outlet end 9 is shown. In this case, the first valve 1 has a third port 10. The beverage dispensing unit also has a second valve 11 (drain valve), whose first port 12 and second port 13 are visible.Here, the second valve inlet fluid line 14, which opens into the second valve 11, is shown with its inlet end 15 and its outlet end 16, and the second valve outlet fluid line 17, which exits the second valve 11, is shown with its inlet end 18. This beverage dispensing unit also has a third valve 20 (e.g., a second coffee valve), whose plunger 64, first port 21, and second port 22 are visible. Here, the third valve inlet fluid line 23, which opens into the third valve 20, is shown with its inlet end 24 and its outlet end 25, and the inlet end 27 of the third valve outlet fluid line is shown. Here, the third valve 20 has a third port 29. Furthermore, this beverage dispensing unit has a fourth valve 30 (e.g., a centrally located milk valve), whose first port 31 is visible.Here, the fourth valve inlet fluid line 33, which opens into the fourth valve 30, is shown with its inlet end 34 and its outlet end 35, and the fourth valve outlet fluid line 36, which exits the fourth valve 30, is shown with its outlet end 38. Furthermore, this beverage dispensing unit has a sixth valve 52 (e.g., a decentralized milk valve) into which a sixth valve inlet fluid line 55 opens. The sixth valve 52 has a third port 61.

[0079] Figure 6Figure 1 schematically shows a top-down oblique view of a cross-section through the beverage dispensing unit according to the invention. In this view, the first valve 1 (e.g., the first coffee valve) and the second port 3 of the first valve 1 are visible, as is the first valve inlet fluid line 4 with its inlet end 5. Furthermore, the first valve outlet fluid line 7 is shown with its inlet end 8 and its outlet end 9. The beverage dispensing unit also includes a second valve 11 (drain valve) and a third valve 20 (e.g., the second coffee valve), whose second port 22 and plunger 64 are visible. The third valve inlet fluid line 23, which opens into the third valve 20, is shown with its inlet end 24, and the third valve outlet fluid line 26, which exits the third valve 20, is shown with its inlet end 27 and its outlet end 28.Furthermore, a fourth valve inlet fluid line 33 with its inlet end 34 is visible, wherein the fourth valve inlet fluid line 33 leads into a fourth valve (not shown) of the beverage dispensing unit. The lip 66 of the plunger 64 of the third valve 20 is also visible here.

[0080] Figure 7Figure 1 schematically shows a top-down oblique view of a further cross-section through the beverage dispensing unit according to the invention. In this view, the first valve 1 (e.g., the first coffee valve) and the second port 3 of the first valve 1 are visible, as is the first valve inlet fluid line 4 with its inlet end 5. Furthermore, the first valve outlet fluid line 7 is shown with its inlet end 8 and its outlet end 9. The beverage dispensing unit also has a second valve 11 (drain valve) and a third valve 20 (e.g., the second coffee valve), whose second port 22 and plunger 64 are visible. The inlet end 27 of the third valve outlet fluid line, which exits the third valve 20, is shown. A fourth valve inlet fluid line 33, which leads to a fourth valve (e.g., a centrally arranged milk valve) of the beverage dispensing unit, with its inlet end 34, is also visible. Reference symbol list

[0081] 1: First valve (e.g., first coffee valve); 2: First connection of first valve; 3: Second connection of first valve; 4: First valve inlet fluid line; 5: Inlet end of first valve inlet fluid line; 6: Outlet end of first valve inlet fluid line; 7: First valve outlet fluid line; 8: Inlet end of first valve outlet fluid line; 9: Outlet end of first valve outlet fluid line; 10: Third connection of first valve; 11: Second valve (drain valve); 12: First connection of second valve; 13: Second connection of second valve; 14: Second valve inlet fluid line; 15: Inlet end of second valve inlet fluid line; 16: Outlet end of second valve inlet fluid line; 17: Second valve outlet fluid line; 18: Inlet end of the second valve outlet fluid line; 19: Outlet end of the second valve outlet fluid line; 20: Third valve (e.g.second coffee valve); 21: first connection of third valve; 22: second connection of third valve; 23: third valve inlet fluid line; 24: inlet end of third valve inlet fluid line; 25: outlet end of third valve inlet fluid line; 26: third valve outlet fluid line; 27: inlet end of third valve outlet fluid line; 28: outlet end of third valve outlet fluid line; 29: third connection of the third valve; 30: fourth valve (e.g., centrally located milk valve); 31: first connection of fourth valve; 32: second connection of fourth valve; 33: fourth valve inlet fluid line; 34: inlet end of fourth valve inlet fluid line; 35: outlet end of fourth valve inlet fluid line; 36: fourth valve outlet fluid line; 37: Inlet end of the fourth valve outlet fluid line; 38: Outlet end of the fourth valve outlet fluid line; 39: Third connection of the fourth valve; 40: Fifth valve (e.g.decentralized first milk valve); 41: first connection of fifth valve; 42: second connection of fifth valve; 43: fifth valve inlet fluid line; 44: inlet end of fifth valve inlet fluid line; 45: outlet end of fifth valve inlet fluid line; 46: fifth valve outlet fluid line; 47: inlet end of fifth valve outlet fluid line; 48: outlet end of fifth valve outlet fluid line; 49: third connection of fifth valve; 50: third connection of second valve; 51: fourth connection of fourth valve; 52: sixth valve (e.g.decentralized second milk valve); 53: first connection of sixth valve; 54: second connection of sixth valve; 55: sixth valve inlet fluid line; 56: inlet end of sixth valve inlet fluid line; 57: outlet end of sixth valve inlet fluid line; 58: sixth valve outlet fluid line; 59: inlet end of sixth valve outlet fluid line; 60: outlet end of sixth valve outlet fluid line; 61: third connection of the sixth valve; 62: elastic element (e.g., spring); 63: switchable actuator of the first and third valves (e.g., coffee valves); 63': switchable actuator of the second valve (drain valve); 63": Switchable actuator of the fourth valve (e.g., central milk valve); 63": Switchable actuator of the fifth and sixth valves (e.g., decentralized milk valves); 64: Valve plunger; 65: Elastic material (e.g.,elastic membrane); 66: lip of the piston; 67: first line for beverage syrup; 67': second line for beverage syrup; 67": third line for beverage syrup; 67‴: fourth line for beverage syrup; 67ʺʺ: fifth line for beverage syrup; 68: inlet end of the first line for beverage syrup; 68': inlet end of the second line for beverage syrup; 68": inlet end of the third line for beverage syrup; 68‴: inlet end of the fourth line for beverage syrup; 68ʺʺ: inlet end of the fifth line for beverage syrup; 69: outlet end of the first line for beverage syrup; 69': outlet end of the second line for beverage syrup; 69": Outlet of the third line for beverage syrup; 69‴: Outlet of the fourth line for beverage syrup; 69ʺʺ: Outlet of the fifth line for beverage syrup; 70: Line for chocolate syrup; 71: Inlet of the line for chocolate syrup; 72: Outlet of the line for chocolate syrup; 100: Further valve (drain valve).

Claims

1. A beverage dispensing unit of a beverage maker, comprising: a) a first valve (1) for controlling the dispensing of a beverage, wherein the first valve (1) has at least two ports (2, 3), an open switching position and a closed switching position, b) a first valve inlet fluid line (4) with an inlet end (5), which is connectable or is connected to a first fluid line of a beverage maker, and an outlet end (6), which is fluidically connected to a first port (2) of the first valve (1); c) a first valve outlet fluid line (7) with an inlet end (8) fluidically connected to a second port (3) of the first valve (1), and an outlet end (9) suitable for dispensing a beverage into an external environment of the beverage dispensing unit; characterized in that the first valve outlet fluid line (7) has a length of ≤ 5 cm and an inner diameter in the range from > 0 mm to ≤ 7 mm, wherein the first valve (1) has at least three ports (2, 3, 10), wherein the beverage dispensing unit further has: i) a second valve (11) for controlling a discharge of liquid into a drain, wherein the second valve (11) has at least two ports (12, 13), an open switching position and a closed switching position; ii) a second valve inlet fluid line (14) with an inlet end (15) fluidically connected to a third port (10) of the first valve (1), and an outlet end (16) fluidically connected to a first port (12) of the second valve (11); and iii) a second valve outlet fluid line (17) with an inlet end (18) fluidically connected to the second port (13) of the second valve (11), and an outlet end (19) suitable for dispensing a beverage into a drain of the beverage dispensing unit.

2. The beverage dispensing unit according to claim 1, characterized in that the first valve (1) is configured in such a way that, in a closed switching position of the first valve (1), there is a fluid-conducting connection between the first and third port (2, 10) of the first valve (1).

3. The beverage dispensing unit according to any one of the preceding claims, characterized in that the beverage dispensing unit further has i) a third valve (20) for controlling the dispensing of a beverage, wherein the third valve (20) has at least two ports (21, 22), an open switching position and a closed switching position, ii) a third valve inlet fluid line (23) with an inlet end (24) fluidically connected to the first valve inlet fluid line (4) and an outlet end (25) fluidically connected to a first port (21) of the third valve (20); and iii) a third valve outlet fluid line (26) with an inlet end (27) fluidically connected to a second port (22) of the third valve (20) and an outlet end (28) suitable for dispensing a beverage into an external environment of the beverage dispensing unit; wherein the third valve outlet fluid line (26) preferably has a length of ≤ 5 cm and an inner diameter in the range from > 0 mm to ≤ 7 mm.

4. The beverage dispensing unit according to claim 3, characterized in that the third valve (20) has at least three ports (21, 22, 29), wherein the third port (29) of the third valve (20) is fluidically connected to the second valve inlet fluid line (14) of the second valve (11), wherein preferably i) the second valve inlet fluid line (14) has an inlet end (15) fluidically connected to a third port (10) of the first valve (1) and an outlet end (16) fluidically connected to a first port (12) of a second valve (11) of the beverage maker; and / or ii) the third valve (20) is configured in such a way that, in a closed switching position of the third valve (20), there is a fluid-conducting connection between the first and third ports (21, 29) of the third valve (20).

5. The beverage dispensing unit according to any one of the preceding claims, characterized in that the beverage dispensing unit further includes: i) a fourth valve (30) for controlling the dispensing of a beverage, wherein the fourth valve (30) has at least two ports (31, 32), an open switching position and a closed switching position, ii) a fourth valve inlet fluid line (33) with an inlet end (34) which is connectable or is connected to a second fluid line of a beverage maker, and an outlet end (35) which is fluidically connected to a first port (31) of the fourth valve (30); iii) a fourth valve outlet fluid line (36) with an inlet end (37) fluidically connected to a second port (32) of the fourth valve (30) and an outlet end (38) suitable for dispensing a beverage into an external environment of the beverage dispensing unit; wherein the fourth valve outlet fluid line (36) preferably has a length of ≤ 5 cm and an inner diameter in the range from > 0 mm to ≤ 7 mm.

6. The beverage dispensing unit according claim 5, characterized in that the beverage dispensing unit further includes: i) a fifth valve (40) for controlling the dispensing of a beverage, wherein the fifth valve (40) has at least two ports (41, 42), an open switching position and a closed switching position, ii) a fifth valve inlet fluid line (43) with an inlet end (44) which is or may be fluidically connected to a third fluid line of a beverage maker, or is connected to a third port (39) of the fourth valve (30), and an outlet end (45) which is fluidically connected to a first port (41) of the fifth valve (40); iii) a fifth valve outlet fluid line (46) with an inlet end (47) fluidically connected to a second port (42) of the fifth valve (40) and an outlet end (48) suitable for dispensing a beverage into an external environment of the beverage dispensing unit; wherein the fifth valve outlet fluid line (46) preferably has a length of ≤ 5 cm and has an inner diameter in the range from > 0 mm to ≤ 7 mm, and optionally the fourth valve (30) is configured in such a way that in a closed switching position of the fourth valve (30) there is a fluid-conducting connection between the first (31) and third port (39) of the fourth valve (30).

7. The beverage dispensing unit according to claim 6, characterized in that the fifth valve (40) has at least three ports (41, 42, 49), wherein the third port (49) of the fifth valve (40) is fluidically connected to a third port (50) of a second valve (11) of the beverage dispensing unit, wherein the fifth valve (40) is preferably configured in such a way that, in a closed switching position of the fifth valve (40), there is a fluid-conducting connection between the first (41) and third port (49) of the fifth valve (40).

8. The beverage dispensing unit according to any one of claims 5 to 7, characterized in that the beverage dispensing unit further includes: i) a sixth valve (52) for controlling the dispensing of a beverage, wherein the sixth valve (52) has at least two ports (53, 54), an open switching position and a closed switching position, ii) a sixth valve inlet fluid line (55) with an inlet end (56) which is fluidically connectable or is fluidically connected to a fourth fluid line of a beverage maker, or is connected to a fourth port (51) of the fourth valve (30), and an outlet end (57) which is fluidically connected to a first port (53) of the sixth valve (52); iii) a sixth valve outlet fluid line (58) with an inlet end (59) fluidically connected to a second port (54) of the sixth valve (52) and an outlet end (60) suitable for dispensing a beverage into an external environment of the beverage dispensing unit; wherein the sixth valve outlet fluid line (58) preferably has a length of ≤ 5 cm and has an inner diameter in the range from > 0 mm to ≤ 7 mm, and optionally the fourth valve (30) is configured in such a way that in a closed switching position of the fourth valve (30) there is a fluid-conducting connection between the first (31) and fourth port (51) of the fourth valve (30).

9. The beverage dispensing unit according to claim 8, characterized in that the sixth valve (52) has at least three ports (53, 54, 61), wherein the third port (61) of the sixth valve (52) is fluidically connected to a third port (50) of a second valve (11) of the beverage dispensing unit, wherein the sixth valve (52) is preferably configured in such a way that, in a closed switching position of the sixth valve (52), there is a fluid-conducting connection between the first (53) and third port (61) of the sixth valve (52).

10. The beverage dispensing unit according to any one of the preceding claims, characterized in that the first valve (1) i) is selected from the group consisting of electrically switchable valve, hydraulically switchable valve, pneumatically switchable valve and combinations thereof, wherein the first valve is preferably an electrically switchable valve; and / or ii) has an actuator (63) suitable for switching the first valve (1), wherein the actuator is preferably selected from the group consisting of linear solenoid, linear motor, piezo element and combinations thereof; and / or iii) has a plunger (64) which is suitable for switching the first valve (1) by its movement, driven by an actuator of the first valve (1), wherein the plunger (64) preferably has an elastic element (62), particularly preferably a spring, which is suitable for holding the first valve (1) in its closed switching position or in its open switching position; and / or iv) has an elastic material (65), preferably an elastic diaphragm, which is suitable for sealing the inlet end of the first valve outlet fluid line (7) in a fluid-tight manner in a closed switching position of the first valve (1); wherein optionally all valves (1, 11, 20, 30, 40, 52) of the beverage dispensing unit have at least one of these features.

11. The beverage dispensing unit according to any one of the preceding claims, characterized in that the first valve (1) has at least one port of which the internal cross-sectional area decreases in the direction of the fluid lines connected to the respective port, preferably from a larger internal cross-sectional area than an internal cross-sectional area of the fluid lines to an internal cross-sectional area which is identical to the internal cross-sectional area of the fluid lines, wherein optionally all valves of the beverage dispensing unit have at least one of these features.

12. The beverage dispensing unit according to any one of the preceding claims, characterized in that the outlet end of the first valve outlet fluid line (7) is suitable for dispensing a beverage along a substantially linear axis to the external environment of the beverage dispensing unit, wherein the substantially linear axis is preferably arranged within an imaginary cylinder of which the central cylinder axis is parallel to the substantially linear axis, wherein the imaginary cylinder has a radius in the range from 3 to 6 cm, preferably 3.5 to 5.5 cm, particularly preferably 4 to 5 cm, in particular 4.5 cm.

13. The beverage dispensing unit according claim 12, characterized in that the outlet end i) of the first valve outlet fluid line (7) has a distance from the central cylinder axis of the imaginary cylinder which is in the range from 0 to 6 cm, preferably 0.5 to 5 cm, particularly preferably 1 to 4 cm, most preferably 2 to 3 cm, in particular 2.5 cm; and / or ii) of a third valve outlet fluid line (26) of the beverage dispensing unit has a distance from the central cylinder axis of the imaginary cylinder which is in the range from 0 to 6 cm, preferably 0.5 to 5 cm, particularly preferably 1 to 4 cm, most preferably 2 to 3 cm, in particular 2.5 cm, wherein a distance between the outlet end of the third valve outlet fluid line and the outlet end of the first valve outlet fluid line is optionally in the range from 2 to 4 cm, preferably 2.5 to 3.5 cm, in particular 3 cm; and / or iii) of a fourth valve outlet fluid line (36) of the beverage dispensing unit has a distance from the central cylinder axis of the imaginary cylinder which is in the range from 0 to 2 cm, preferably 0.25 to 1.75 cm, particularly preferably 0.5 to 1.5 cm, very particularly preferably 0,75 to 1.25 cm, in particular 1 cm, wherein a distance between the outlet end of the fourth valve outlet fluid line and the outlet end of the first valve outlet fluid line is optionally in the range from 2 to 4 cm, preferably 2.5 to 3.5 cm, in particular 3 cm; and / or iv) of a fifth valve outlet fluid line (46) of the beverage dispensing unit has a distance from the central cylinder axis of the imaginary cylinder which is in the range from 1 to 4 cm, preferably 1.5 to 3.5 cm, particularly preferably 2 to 3 cm, in particular 2.5 cm, wherein a distance between the outlet end of the fifth valve outlet fluid line and the outlet end of the first valve outlet fluid line is optionally in the range from 3 to 7 cm, preferably 4 to 6 cm, in particular 5 cm; and / or v) of a sixth valve outlet fluid line (58) of the beverage dispensing unit has a distance from the central cylinder axis of the imaginary cylinder which is in the range from 1 to 4 cm, preferably 1.5 to 3.5 cm, particularly preferably 2 to 3 cm, in particular 2.5 cm, wherein a distance between the outlet end of the sixth valve outlet fluid line and the outlet end of a fifth valve outlet fluid line is optionally in the range from 2 to 5 cm, preferably 3 to 4 cm, in particular 3.5 cm.

14. A coffee machine, comprising i) a beverage dispensing unit according to any one of the preceding claims, wherein preferably the inlet end of the first valve inlet fluid line of the beverage dispensing unit is connected to a first coffee line of the coffee machine and particularly preferably an inlet end (34) of a fourth valve inlet fluid line (33) of the beverage dispensing unit is connected to a milk line of coffee machine; and ii) a control unit configured to control at least one valve, preferably all valves, of the beverage dispensing unit.

15. The coffee machine according to claim 14, characterized in that the control unit is configured i) to open the first valve (1) when the coffee machine has received a command to dispense coffee into a single beverage container; and / or ii) to open the first valve (1) and a third valve (20) of the beverage dispensing unit when the coffee machine has received a command to dispense coffee into a single beverage container or two beverage containers; and / or iii) to switch a second valve (11) of the beverage dispensing unit in a manner complementary to the first valve (1), optionally also to a third (20), fourth (30), fifth (40) and / or sixth valve (52) of the beverage dispensing unit, preferably to close it when the coffee machine has received a command to dispense a beverage and to open it when the coffee machine has not received a command to dispense a beverage; and / or iv) to open a fourth valve (30) of the beverage dispensing unit when the coffee machine has received a command to dispense a fluid comprising or consisting of milk into a single beverage container; and / or v) to open a fifth (40) and sixth valve (52) of the beverage dispensing unit and to close a fourth valve (30) of the beverage dispensing unit when the coffee machine has received a command to dispense a fluid comprising or consisting of milk into a single beverage container or two beverage containers.