EP2709502A1 - Dispositif permettant de monter le lait en mousse, appareil de préparation de boissons doté d'un tel dispositif et procédé permettant de monter le lait en moussedispo - Google Patents

Dispositif permettant de monter le lait en mousse, appareil de préparation de boissons doté d'un tel dispositif et procédé permettant de monter le lait en moussedispo

Info

Publication number
EP2709502A1
EP2709502A1 EP12722684.3A EP12722684A EP2709502A1 EP 2709502 A1 EP2709502 A1 EP 2709502A1 EP 12722684 A EP12722684 A EP 12722684A EP 2709502 A1 EP2709502 A1 EP 2709502A1
Authority
EP
European Patent Office
Prior art keywords
air
liquid
line
supply line
downstream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12722684.3A
Other languages
German (de)
English (en)
Inventor
Torsten Bönsch
Sander Dollner
Johannes Bais
Marcus Ludwig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WMF Group GmbH
Original Assignee
WMF GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WMF GmbH filed Critical WMF GmbH
Publication of EP2709502A1 publication Critical patent/EP2709502A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
    • 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
    • A47J31/4485—Nozzles dispensing heated and foamed milk, i.e. milk is sucked from a milk container, heated and foamed inside the device, and subsequently dispensed from the nozzle
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C9/00—Milk preparations; Milk powder or milk powder preparations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids

Definitions

  • the present invention relates to a device for foaming a liquid, in particular of cold and / or not actively heated milk, to a beverage maker containing such a device (in particular to an electrically operated coffee machine) and to a method for foaming a liquid.
  • the preparation of cold coffee drinks is experiencing growing demand. Especially in Asian countries there is a rich offer of such drinks in the summer months.
  • the preparation of such drinks is usually done by the hot-brewed coffee is dispensed into a jar of ice cubes.
  • the milk component for coffee specialties such as cappuccino cold or to produce cold milk foam.
  • WO 2008/083941 AI a device for producing milk foam, in which a single pump is provided both for conveying milk, as well as for sucking the necessary air for generating the foam.
  • Object of the present invention is therefore starting from the prior art, a device for foaming a liquid (especially milk) especially in cold, so not heated Form to provide, with the consistency of the foam produced (in particular milk ⁇ foam) in a simple manner influenced, that can be changed.
  • the object is moreover to provide such a device which has a simple and / or compact design and can be cleaned with little effort.
  • the object of the invention is to provide a beverage maker (in particular: fully automatic coffee machine), which is provided with a AufMuravor- inventive direction.
  • a corresponding on ⁇ foaming is object of the present invention.
  • a device has a liquid supply line with which, e.g. from a separate vessel such as a tetrapak, the liquid to be foamed can be passed into the device.
  • this liquid supply line opens an air supply, with the liquid to be foamed air can be supplied.
  • a discharge line is formed with which the mixture of liquid and air can be discharged, for example into an external vessel such as e.g. a cup.
  • a first conveyor unit is provided (in particular as a pump or
  • Breast pump may be formed) which serves to convey the liquid through the liquid supply and / or the mixture of liquid and air through the discharge. Downstream of the mouth of the air supply line into the liquid supply line, a mixing unit is provided, which serves to mix the liquid with the air (that is, for example, to disperse the air in bubble form in the liquid).
  • This mixing unit which can be formed in the simplest case as a pipe section of the discharge, in which a diaphragm is used to reduce the pipe inner cross-section, comprises at least one constriction or is formed as a bottleneck (s) of the derivative.
  • the above-described mixing unit can thus consist of only one bottleneck of the derivative, but also comprise several bottlenecks in the derivative.
  • This bottleneck (s) may in particular be a cross-sectional constriction (s) realized on the basis of an orifice (s).
  • a cross-sectional constriction realized on the basis of an orifice (s).
  • other embodiments are described below which lead to at least one cross-sectional constriction in the discharge (for example, an object to be flowed around can be arranged in the interior of the discharge, around which the mixture of liquid and air - with an overall increased outside diameter)
  • Derivation - must flow around, in which case, despite the increased outer diameter of the derivative at the site of the bottleneck given by the difference between the object cross section and Ab effetsquerites free cross section in the derivative is still reduced).
  • the device for the active introduction of air via the air supply line is formed in the liquid.
  • This can be realized, for example, by providing a further (active), ie second delivery unit (in particular: an air pump).
  • This second delivery unit is preferably arranged in the air supply line (wherein the device in this case thus has two delivery units, in a preferred variant exactly two delivery units).
  • Both the above-described first conveyor unit, and the second conveyor unit can be controlled, for example, with a microprocessor-based control unit, so that the amount of fluid delivered by the conveyor unit (s) per unit time (ie in the first conveyor unit, the amount of liquid delivered per unit time or also , Depending on the design of the device, the amount of the mixture of liquid and air conveyed per unit time and the amount of air delivered per unit time in the second conveyor unit) can be set within predetermined limits.
  • the consistency of the foam, in particular the milk foam ie the proportion of air in the foam
  • a storage unit may be provided, are stored in the appropriate mixing ratios for air / liquid in program form, which can then be selected via preselection keys on the housing of the device depending on the type of beverage to be prepared.
  • first and the second transport unit can be changed so ⁇ with the consistency of the foam produced with appropriate control or regulation of the ratio of the flow rate of the two conveyor units.
  • a compressed air tank can also be connected to the end of the air supply line facing away from the mouth of the air supply line (it is then additionally to provide a valve in the air supply line with which the above this compressed air tank per unit time can be regulated by the air supply introduced amount of air; this can also be realized on the basis of a microprocessor-based control unit).
  • a device according to the invention comprising such a compressed air tank has exactly one conveying unit in the form of a pump (the first conveying unit).
  • the mixing unit comprises a plurality of bottlenecks (eg a plurality of perforated diaphragms) which are spaced successively from one another into the discharge, each having the free inner cross section in the discharge at the location of its positioning in comparison to the respective ones reduce upstream and downstream drainage sections).
  • Adjacent bottlenecks are preferably with a distance in the range between 1 and 50 cm, preferably between 5 and 20 cm, firmly integrated into the derivative (but can also be realized as required as variable diaphragms, for example in the form of lamellar panels, which, for example by the triggered control unit, a change in the free inner cross section of
  • the above-described variant with at least two successive bottlenecks of the discharge causes a particularly good mixing and subsequent expansion of the air-liquid mixture or air-milk mixture.
  • the several successively flowed through bottlenecks in the discharge can also be formed nozzle-shaped or just as sharp-edged diaphragms.
  • the pressure drop in the derivative does not take place in one step, but at least in two stages.
  • Cross-sectional area F b of the downstream bottleneck in the range between 1 / 1.05 and 1/16, preferably in the range between 1 / 1.1 and 1 / 2.0.
  • the amount of foam, the porosity, the stability and consistency of foam generated (in particular milk foam) can be influenced as desired.
  • An important role is played by the choice of different aperture or throttle cross-sections, when the bottlenecks are designed in the form of apertures or throttles.
  • the corresponding bottleneck section of the discharge is designed as a removable and reusable derivation piece of the device according to the invention, then a simple cleaning of the mixing unit can be ensured (if desired, a flushing connection for supplying cleaning liquid into the corresponding section or also for other sections) where the liquid or the mixture of liquid ⁇ speed and air out, are integrated).
  • the bottleneck (s) can be configured as a throttle valve, as a needle valve or as a nozzle.
  • a training as a terminal in particular as a hose clamp is possible, with a flexible part of the derivative (eg, this part or the entire derivative may be formed as a flexible hose) for creating a bottleneck with a determined by the construction of the hose clamp, predetermined pressure can be compressed.
  • the hose clamp-based constriction is designed such that a progressive Venous constriction follows a degressive extension, ie, the cross-sectional reduction on the upstream input side of the constriction is realized on a comparatively ⁇ short distance of 0.5 cm, for example, whereas the extension of the cross section on the downstream side of the constriction with a lower slope, ie on a longer section the derivation takes place (eg over a distance of 3 to 5 cm).
  • the bottleneck (s) can (as already indicated) also be realized as a diaphragm (s).
  • the aperture can be introduced in particular as a cross-sectional narrowing aperture in a portion of the derivative.
  • the inner hole diameter may preferably be between 0.5 and 2 mm.
  • diaphragms of variable hole diameter in the above-described range e.g., louver diaphragms driven by the above-described control unit are also possible, as are diaphragms having a fixed inner hole diameter in the above-described range.
  • annular gap diaphragms with a variable gap width as well as with a defined gap width (in this case, the gap width can be varied, for example, in the range between 0.25 and 1 mm or fixed to a defined value from this range).
  • a construction of a constriction as in the downstream direction around a central cone steadily widening, elongated annular gap is possible.
  • the gap length can be in the flow direction in the range between 1 cm and 15 cm.
  • the gap width at the upstream end of the elongated annular gap can be between 0.25 and 1 mm, the annular gap then widens to downstream end to a final gap width in the range of eg between 1 and 5 mm.
  • the above-described variant of an elongate annular gap as constriction has the particular advantage that the mixture of liquid and air can relax relatively slowly and steadily, without forming unwanted coarse air bubbles: This results in a very good mixing and an optimized consistency of the produced foam.
  • the bottlenecks may be formed either with variable free cross-sectional area or with a fixed set free cross-sectional area.
  • a Stre ⁇ ckenabêt the derivative as a calming section with the turbulent portion of the flowing mixture of liquid and air can be reduced, so the laminar portion of this mixture can be increased.
  • This section can be realized in the simplest case by a line section with a constant free inner cross section, which preferably has a length between 5 and 50 cm, preferably between 30 and 50 cm (the section does not have to be formed as a straight section, but may also meander for example - mig).
  • the longer calming sections of 30 to 50 cm are advantageous, which lead to a gradual pressure drop with low pressure difference per unit length.
  • the first conveyor unit termeast pump or
  • the first delivery unit can be arranged upstream of the mouth of the air supply line in the liquid supply line.
  • the air is introduced after the first conveyor unit and thus forcibly active (via the second conveyor unit or the pressure vessel).
  • the first conveyor unit in the region of the above-described mouth (eg even to form this mouth as part of the first conveyor unit, for example by both an inlet for the liquid and an inlet for the air and an outlet for the mixture in the first conveyor unit are present).
  • the first conveying unit downstream of the above-described mouth so that in this case the air is introduced in front of the first conveying unit.
  • the device may be designed either to actively introduce the air, for example via an additional, second delivery unit, or to passively introduce air by the first delivery unit sucking in both the liquid and the air.
  • the mixing unit comprising at least one bottleneck is integrated into the discharge downstream of the first delivery unit.
  • the mixing unit in a downstream outlet of the first conveyor unit, ie to form the mixing unit as part of the first conveyor unit.
  • the discharge comprises a stream preferably downstream of the mixing unit.
  • unit formed additional mixing area in which opens a steam supply line.
  • steam from a steam generator or else a predetermined mixture of air and steam can additionally be added to the mixture of liquid and air flowing through the mixing area.
  • this mixing area is designed as a simple, T-shaped line piece.
  • a particular embodiment of the apparatus provided with a steam supply line according to the invention can be designed for the active introduction of air into the steam feed line (for producing the mixture of air and steam which is finally introduced into the mixture of liquid and air). This is done, for example, by a third delivery unit (in particular pump) for conveying air, e.g. may be integrated in a further air supply line opening into the steam supply line. It is also possible to provide a further compressed air tank, which is connected to the mouth of such a further air supply line in the steam supply end facing away from the other air supply line to the latter.
  • the above-described mixing region of the frothing device is designed as a Venturi nozzle.
  • the in the mixing area leading steam supply thereby forms the inlet of the Venturi nozzle and the portion of the discharge leading out of the mixing zone in the downstream direction, the outlet of the Venturi nozzle (these two sections can be formed as two oppositely directed cones, which in the place of their least
  • the upstream portion of the drain leading into the mixing region then forms the venturi's take-off tube (this drainage tube is then placed, for example, at the prescribed location of the smallest diameter).
  • the above-described embodiment variant may preferably be switched between a hot foam production mode and a cold foam production mode of operation (eg, by a preselection button on the apparatus):
  • steam is not supplied (eg, the steam path is through a valve)
  • liquid and air are supplied, mixed and discharged by means of the first or first and second feed units to the mixing unit
  • hot steam may additionally be added to the mixture of liquid and air
  • a bypass line may be provided which branches off the liquid feed line upstream of the first feed unit and either flows into the discharge downstream of the mixing unit or upstream of the Mi schatti, but downstream of the first conveyor unit in the liquid supply and / or the discharge opens.
  • the diversion of the bypass line from the liquid supply can take the form of a Multi-way switching unit (in particular: for example, three-way valve, but it may also be a hose clamp valve in the bypass line instead of such a valve may be present) may be formed, with the / said to ⁇ afferent liquid optionally either via the bypass line or on the first conveyance unit toward the discharge can be performed.
  • a Multi-way switching unit in particular: for example, three-way valve, but it may also be a hose clamp valve in the bypass line instead of such a valve may be present
  • the / said to ⁇ afferent liquid optionally either via the bypass line or on the first conveyance unit toward the discharge can be performed.
  • the path leading via the first conveying unit can thus be bypassed with the aid of the above-described bypass line (as well as the path section via the mixing unit), so that liquid flows via the steam flowing through the mixing region according to the known Venturi principle Bypass line is entrained (this entrained liquid is then foamed over the supplied steam or the supplied steam-air mixture in hot form).
  • the foaming device according to the invention can be integrated in particular in a beverage maker (coffee machine or electrically operated coffee machine). It is then preferably the
  • Figure 1 shows a first embodiment according to the invention for producing cold and hot milk foam with integrated venturi.
  • Figure 2 shows a second embodiment of the
  • Figure 2a shows a third embodiment of the
  • Figure 3 shows a fourth embodiment of the
  • FIG. 4 shows an example for producing only cold milk foam.
  • FIG. 1 shows a first foaming device according to the invention, which is integrated into a coffee machine.
  • the device comprises a Museumzulei ⁇ tion 1, in which a milk pump (first conveyor unit 5) is integrated.
  • the milk pump upstream end of the milk line 1 is immersed in an external container B with milk M in the form of a tetrapack. Between this end of the milk line 1 and the
  • Breast pump 5 is a three-way valve 16 integrated into the milk line 1.
  • An air supply line 2 opens by means of a designed as a simple T-shaped line piece mouth 3 downstream (in the direction of milk production) of the pump 5 in the milk line 1. At its mouth 3 facing away, upstream air end is a second conveyor unit (feed pump 8) in the air supply 2 integrated. In addition, another air supply line 30 opens between the air pump 8 and the mouth 3 in the air supply line 2. At this additional air supply line 30 is a check valve 20 and upstream of the check valve 20 (at the mouth in the air supply 2 end facing away) a compressed air tank. 9 educated.
  • the milk M flowing in the milk line 1 downstream of the milk pump 1 can thus be added in two different ways to air L in a predetermined amount: either (when the valve 20 is closed) Suction of air L from the environment by means of the air pump
  • the flow rate of milk M per unit time by the milk pump 5, the flow rate of air L per unit time by the air pump 8 and the degree of opening of the valve 20 can be adjusted by a microprocessor-based control unit, not shown here in each case to ei ⁇ nen desired value (which can be determined for example indirectly by means of a beverage selection button on the housing of the coffee machine, not shown here).
  • the ratio of per unit time e.g. The amount of milk M delivered by the pump 8 through the line 2 and the amount of milk M sucked in by the pump 5 thus determines the mixture M / L of milk M and air L discharged downstream of the mouth 3 (via the outlet 4): the higher the proportion of air compared to the milk content M, the stronger the aspirated milk is foamed.
  • the downstream side of the orifice 3 is designed as a discharge line 4, which ultimately serves for discharging the mixture M / L of milk M and air L into an external container in the form of a cup T (via the delivery head 19 of the coffee machine described below).
  • a mixing unit 6 is first formed downstream of the mouth 3 in the outlet 4.
  • this mixing unit 6 comprises two separate bottlenecks 7a and 7b in the discharge line 4.
  • the section of the discharge line provided with the mixing unit 6 is designed as a rigid pipe section, in which the two bottlenecks 7a, 7b in the form of the free in Cross-section of the discharge pipe reducing pinhole are formed.
  • the two bottlenecks or pinhole diaphragms 7a, 7b are here integrated at a distance of eg 10 cm (seen in the direction of flow of the mixture M / L) in the department 4. This distance can generally between 1 and 50 cm, preferably between 5 and 20 cm.
  • the upstream, the pump 5 facing first aperture 7a has a hole diameter of, for example, 1mm.
  • the downstream, the pump 5 facing away from the second aperture plate 7b has a hole diameter of, for example 1.5mm, ie a larger hole diameter than the first aperture 7a.
  • the hole diameter of the aperture can vary between 0.5 and 2 mm.
  • the free inner cross section of the discharge section of the discharge line 4, in which the two pinhole diaphragms 7a, 7b are integrated, has an inner diameter of, for example, 3 mm in the regions outside the pinhole diaphragms.
  • the upstream of the milk pump 5 formed in the Mich ein 1 three-way valve 16 allows in a first switching state, passing the milk M from the container B via the pump 5 and the mouth 3 in the derivative 4. In a second switching state, the three-way valve 16 connects the upstream the pump 5 lying part of the milk line 1 via a
  • a junction 17 formed as a simple T-shaped line piece.
  • the air feed line 2 opens with its downstream end between the milk pump 5 and the upstream aperture 7a in the liquid supply line 1.
  • the downstream end of the air supply line 2 (which is provided in this case with the reference numeral 2 ⁇ ) via an upstream of the pump 5 and the three-way valve 16 arranged mouth (reference numeral 3 ⁇ ) leads into the milk line 1.
  • the required pressure level for the air is lower and it is easier to prevent the unwanted ingress of milk into the air line.
  • air 2 is introduced downstream of the pump 5, the air pressure must be higher than if air 2 ⁇ is introduced upstream of the pump.
  • the penetration of milk into the air supply line 3 ⁇ is easier to prevent in the case of upstream introduction, since no pressure builds up before the pump 5.
  • Venturi nozzle V is formed, integrated.
  • Venturi nozzle is integrated in the dispensing head 19 of the Kaf ⁇ feevollautomaten (the outlet 4b of the
  • Venturi nozzle V forms a separate discharge this dispensing head 19; a further output line of the dispensing head 19, via which the coffee produced with the automatic coffee machine in cold or hot form can be dispensed into the external cup T, is only hinted here).
  • the inlet of the venturi V forms the
  • the outlet of the venturi nozzle forms the downstream end 4b of the discharge line 4 for discharging the mixture M / L from milk and air or M / L / D (see below) from milk, air and steam the cup T.
  • downstream end of the steam supply line 12 are formed by two oppositely directed cones, which are united at the location of their smallest diameter and there form the mixing area 11.
  • the take-off tube 4a of the Venturi nozzle V which is here formed by a downstream of the mouth 17 portion of the discharge line 4, placed.
  • the drain 4 comprises first the mixing unit 6, then the T-shaped mouthpiece 17, finally the take-off tube 4a of the venturi V and at the end the outlet 4b of the venturi V for discharging the mixture into the cup T.
  • the steam supply line 12 Upstream of the inlet into the Venturi nozzle V, the steam supply line 12 is formed as follows: upstream, the Venturi nozzle V opposite end of a known steam generator 18 is connected to the steam supply line 12. Between the steam generator 18 and the Venturidüsenzugewandten end of the steam supply line 12 is in the latter a check valve 21, with which the steam supply opened and can be stopped again integrated.
  • Another air supply line 14 opens at its downstream end via a simple T-shaped line piece between the valve 21 and the
  • Air pump 13 integrated with the air L sucked or promoted from the environment and can be added to the supplied via the valve 21 steam D.
  • the delivery rate of this pump is also controlled by the not shown, microprocessor-based control unit, so that the ratio of per unit time via the line 12 in the
  • Venturi nozzle V conveyed amounts of air L and steam D, ie the mixing ratio of in the
  • Venturi nozzle V introduced air-steam mixture L / D can be set to a desired value.
  • About this promotion of steam D or the air-vapor mixture L / D in the Venturi nozzle V is due to the constriction 11 (mixing area) sucked by the known Venturi principle milk M via the bypass line 15 and the section 4a and entrained (see below).
  • the valve 21 by controlling the three conveyor units 5, 8 and 13 (or the two conveyor units 5 and 13 and the valve 20) and the valve 21, a desired mixture of milk, air and steam M / L / D via the outlet 4b of
  • the ratio of sucked milk M (possibly adjustable via the setting of the valve 16) and the amount of steam D flowing through determines the temperature of the milk foam derived in the cup T.
  • both cold milk foam and hot milk foam with variable composition can thus be produced in two different operating modes:
  • a first operating mode cold milk foam
  • the valve 21 is closed and the delivery of air L is adjusted via the pump 13, so that only the power path 4a, 4b of the Venturi nozzle or the delivery head 19 is used for delivery.
  • a preselected mixing ratio pump 5 and pump 8 or valve 20
  • milk is conveyed via the pump 5 in the first switching state of the three-way valve 16 (bypass line 15 closed)
  • a predetermined amount of air L is added to this milk M via the mouth 3 , the resulting mixture M / L via the mixing unit 6 of the derivative 4 two-stage relaxed and added via the conduit 4a, 4b of the cup T.
  • It is then not heated, so usually cold milk foam (corresponding to the temperature of the milk M in the container B) in the cup T, by suitable design of the coffee machine (not shown), for. cold extracted coffee can be added.
  • the delivery is set by the pump 8 (it can Also here additionally provided downstream of the pump 8 in the line 2 before the junction of the line 30 in the line 2 positioned shut-off ⁇ valve 22 are closed) and the valve 20 is closed, so that no air supply L takes place via the mouth 3. Then, the second GmbHstel ⁇ ment of the three-way valve 16 is activated (bypassing the elements 5, 6), so set the bypass 15. The valve 21 is opened (if necessary, additional air is conveyed via the pump 13).
  • the junction 17 of the bypass line 15 can also be formed upstream of the mixing unit 6 or the two orifices 7a and 7b, so that only the pump 5 is bypassed with this bypass path.
  • the two diaphragms 7a, 7b can not be embodied as rigid pinhole diaphragms but as variable diaphragms (eg slat diaphragms). If the diaphragms are then activated by the control unit (also not shown), it is possible to open these diaphragms less strongly in the first operating mode (cold milk foam) and in the second operating mode (to produce hot milk foam via a passive one) Milk suction using the Venturi principle) to open more.
  • the volume flow of milk is controllable and, for example, with constant steam flow, thus the output temperature of the hot milk foam or of the hot milk.
  • FIG. 1 shows, in particular, an apparatus for frothing with a milk conveyor 5 for conveying and pressurizing the milk M, a supply 2 for the air, an introduction point 3, in which air L and milk M are brought together and is characterized by the fact that both the milk M (pump 5) and the air L (pump 8) can be actively conveyed and that the milk-air mixture M / L is expanded in several stages via the two stages 7a, 7b of the mixing unit 6.
  • the system shown can also be used to produce hot milk foam or hot milk.
  • the system shown does not have to be integrated into a coffee machine, but can also (not shown here) as a stand-alone solution, ie as an independent device for generating only cold milk foam (omitting the elements 11, 12, 13, 14, 18 and 21) or alternatively cold as well as warm milk foam (see FIG. 1).
  • the use of the two panels 7a, 7b allows a simple solution that still allows optimal adjustment of the consistency of the milk foam, with simultaneous easy cleaning of the corresponding components and little effort in terms of constructive implementation.
  • FIG 2 shows a second embodiment according to the invention of a coffee machine, which is suitable by equipment with a device according to the invention for producing cold milk foam or optionally also hot milk foam.
  • This coffee machine is basically designed as shown in Figure 1, so that only the differences in structure and operation are described below (identical reference numerals denote identical components in Figure 2, compared to Figure 1, this also applies to all other figures ).
  • the check valve 22 for closing and opening the air supply line 2 is integrated (if no air is pumped with the pump 8, this valve is usually closed). In the device shown in Figure 2 also eliminates the bypass line 15, so that no three-way valve 16 upstream of the first pump 5 is necessary.
  • the mixing region 11 downstream of the second aperture 7b is not formed as a venturi, but as a simple T-shaped line piece, in the one hand, via the steam supply line 12, the steam D and on the other hand, over the downstream of the aperture 7b line section of Derivative 4, the mixture M / L can be passed.
  • the mixture M / L then mixes with the vapor D in the T-shaped line section or in the mixing region 11 (the elements 13 and 14 are omitted here).
  • the steam generator 18 is arranged in the steam supply line 12 at its upstream end. Downstream of the steam generator 18, ie between this and the
  • the mixture M / L / D ie the composition of the hot milk foam, can be controlled by the pumping power of the pumps 5, 8 and, if appropriate, 13.
  • Dampfabsperrventil 21 completely closed.
  • the consistency of the milk-air mixture or the milk foam produced by the two orifices 7a, 7b is set as desired by the delivery rates of the two pumps 5 and 8 in this case.
  • FIG. 2 thus shows a system according to the invention for Production of cold and hot milk foam in a simplified configuration.
  • Cold milk foam is produced by means of the suction of milk through the conveying device 5, by active introduction of the air by means of the second conveying device 8 into the milk line 1 and by subsequently relaxing on the two plates 7a, 7b integrated successively into the outlet 4.
  • the aperture course chokes or other Ele ⁇ elements that form a bottleneck.
  • hot milk foam hot steam is added to the cold milk foam supplied via the mixing unit 6 via the steam line 12 from the steam generator 18 (the steam generator 18 may be designed as a steam jet condensation pump).
  • FIG. 2 a shows another coffee machine according to the invention, including a frothing device, which is basically designed as shown in FIG. 2, so that only the differences from FIG. 2 will be described below.
  • the downstream end of the steam feed line 12 can open at different points between the milk pump 5 and the outlet 19.
  • the junction of the steam supply line 12 can thus
  • the junction can thus take place between the pump 5 and the mouth 3 of the air supply line 2, see 11 'in the air supply line 2 Zvi ⁇ rule valve 22 and orifice 3, cf. 11 , ' between the mouth 3 and the first orifice 7a (see 11''), between the first orifice 7a and the second orifice 7b (see mixing zone 11,, ⁇ ) or also directly within the outlet 19 into the outlet 4 (not shown here, only corresponding wiring 12 ⁇ ⁇ ⁇ ⁇ the steam supply line visible).
  • the steam supply lines 12, 12 ... belonging to the individual mixing areas 11, 11 are usually alternatives, ie only one mixing area 11, 11 ... is realized at a defined location. In principle, however, it would also be conceivable to realize several or all of the mixing areas 11, 11 ... and lines 12, 12 ... shown by suitable branch lines.
  • Steam D (or a mixture of air L and steam D in the case of the presence of a third conveyor unit 13 together with another air supply line 14, optionally shown here) can therefore at any point between the milk pump 5 and the outlet 19 in the milk or Milk-air mixture line 1.4 or directly into the outlet 19 or in the air supply line 2 between the valve 22 and the mouth or the mixing region 3 are introduced.
  • the upstream of at least the second aperture 7b arranged mixing portions 11 ⁇ 11 ", 11 '' ⁇ and II have the advantage of the common relaxation of steam D, milk M and air L (the latter as long as valve 22 is opened) to at least one of Apertures 7a, 7b.
  • the mixture M / L / D or M / D can thus a relaxation 7b or two expansion stages 7a, 7b are underwor ⁇ fen.
  • FIG. 3 shows another coffee machine according to the invention, including a frothing device, which is basically designed as shown in FIG. 2, so that only the differences will be described below again.
  • the air supply line 2 opens via the upstream of the first pump 5 located in the milk line 1 mouth 3 in the milk line 1. Also in the case shown, the milk M air L is thus actively added by the fact that integrated in the air supply line 2 Shut-off valve 22 is opened and 8 air L is promoted on the set in operation pump.
  • the mixing unit 6 here only includes exactly one constriction 7, which here too can be configured, for example, as a pinhole.
  • a calming 10 integrated here (not shown in detail), for example, as a 50 cm long, eg meandering running, for example, rigid, circular in cross-section tube with constant Inner diameter is formed.
  • the calming section leads to a gradual, slow relaxation of the mixture M / L which has been stirred up through the constriction 7. Due to its length, it leads to the fact that the initially present in turbulent form mixture M / L is converted into laminar form before it
  • the calming section 10 can not be integrated directly after the element 6, but after the T-junction 11.
  • FIG. 4 shows a further exemplary embodiment of a device according to the invention with which only cold milk foam (that is to say milk foam based on unheated milk M) can be produced.
  • This device is embodied as an independent device that is not integrated in a fully automatic coffee machine, but otherwise basically embodies the same as the integrated device shown in FIG. 2, so that only the differences are described below.

Abstract

La présente invention concerne un dispositif permettant de monter un liquide en mousse, s'agissant notamment de lait frais et/ou non-chauffé, comportant un conduit d'alimentation en liquide destiné à acheminer ledit liquide, un conduit d'alimentation en air qui débouche dans le conduit d'alimentation en liquide et qui est destiné à introduire de l'air dans le liquide, un conduit d'évacuation qui est réalisé en aval du site où le conduit d'alimentation en air débouche dans le conduit d'alimentation en liquide et qui est destiné à évacuer le mélange de liquide et d'air, une première unité de transport, s'agissant notamment d'une pompe, destiné à transporter le liquide à travers le conduit d'alimentation en liquide et/ou ledit mélange à travers le conduit d'évacuation, et une unité de mélange réalisée en aval du site de débouchement dans le conduit d'évacuation, ladite unité de mélange comprenant au moins un rétrécissement ou étant réalisée sous forme d'un rétrécissement dans le conduit d'évacuation.
EP12722684.3A 2011-05-20 2012-05-21 Dispositif permettant de monter le lait en mousse, appareil de préparation de boissons doté d'un tel dispositif et procédé permettant de monter le lait en moussedispo Withdrawn EP2709502A1 (fr)

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DE102011102734A DE102011102734A1 (de) 2011-05-20 2011-05-20 Vorrichtung zum Aufschäumen von Milch, Getränkebereiter mit dieser Vorrichtung und Verfahren zum Aufschäumen von Milch
PCT/EP2012/002155 WO2012159729A1 (fr) 2011-05-20 2012-05-21 Dispositif permettant de monter le lait en mousse, appareil de préparation de boissons doté d'un tel dispositif et procédé permettant de monter le lait en mousse dispo

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EP2709502A1 true EP2709502A1 (fr) 2014-03-26

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US (1) US9381473B2 (fr)
EP (1) EP2709502A1 (fr)
JP (1) JP2014516679A (fr)
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WO (1) WO2012159729A1 (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10347710B4 (de) 2003-10-14 2006-03-30 Johannes-Gutenberg-Universität Mainz Rekombinante Impfstoffe und deren Verwendung
DE102005046490A1 (de) 2005-09-28 2007-03-29 Johannes-Gutenberg-Universität Mainz Modifikationen von RNA, die zu einer erhöhten Transkriptstabilität und Translationseffizienz führen
DK2225976T3 (da) * 2009-03-03 2012-11-26 Delica Ag Indretning til fremstilling af mælkeskum
PT3892295T (pt) 2011-05-24 2023-06-01 Tron Translationale Onkologie An Der Univ Der Johannes Gutenberg Univ Mainz Gemeinnuetzige Gmbh Vacinas individualizadas para o cancro
WO2013143555A1 (fr) 2012-03-26 2013-10-03 Biontech Ag Formulation d'arn pour immunothérapie
JP6484558B2 (ja) 2012-11-28 2019-03-13 バイオエヌテック エールエヌアー ファーマシューティカルズ ゲーエムベーハーＢｉｏｎｔｅｃｈ Ｒｎａ Ｐｈａｒｍａｃｅｕｔｉｃａｌｓ Ｇｍｂｈ 癌ワクチンの組み合せ物
DE102014105108A1 (de) * 2013-04-29 2014-10-30 Melitta Professional Coffee Solutions GmbH & Co. KG Vorrichtung zum Erzeugen eines Milchschaumes
WO2014180490A1 (fr) 2013-05-10 2014-11-13 Biontech Ag Prédiction de l'immunogénicité d'épitopes de lymphocytes t
DE102013224400A1 (de) * 2013-11-28 2015-05-28 Wmf Ag Elektrisch betriebener Getränkebereiter, insbesondere elektrisch betriebene Kaffeemaschine, mit Dampflanze zum Milchaufschäumen
EP3160309B1 (fr) * 2014-06-25 2020-03-25 Société des Produits Nestlé S.A. Dipositif pour mousser
DE102014111761A1 (de) 2014-08-18 2016-02-18 Eugster/Frismag Ag Milcherwärmungs- und/oder Milchaufschäumvorrichtung sowie Getränkezubereitungsvorrichtung
EP3000363A1 (fr) * 2014-09-24 2016-03-30 Qbo Coffee GmbH Dispositif d'émulsionnement du lait, système de préparation de boissons et machine de préparation de boissons
WO2016045732A1 (fr) 2014-09-25 2016-03-31 Biontech Rna Pharmaceuticals Gmbh Formulations stables de lipides et de liposomes
DE102014223550B4 (de) * 2014-11-18 2016-09-15 Franke Kaffeemaschinen Ag Vorrichtung und Verfahren zum Erzeugen von Milchschaum
EP3040000A1 (fr) * 2015-01-05 2016-07-06 Gruppo Cimbali S.p.A. Procédé et dispositif de distribution du lait moussé
PT3039999T (pt) * 2015-01-05 2018-05-23 Gruppo Cimbali Spa Aparelho e processo para distribuir leite com espuma ou sem espuma
FR3031682B1 (fr) * 2015-01-21 2019-11-29 Clextral Procede et installation de production d'un produit poreux en poudre
WO2016128060A1 (fr) 2015-02-12 2016-08-18 Biontech Ag Prédiction des épitopes de lymphocytes t utiles pour la vaccination
ES2731879T3 (es) 2015-03-12 2019-11-19 Gruppo Cimbali Spa Aparato dispensador de leche
ES2770683T3 (es) * 2015-03-20 2020-07-02 Rancilio Group Spa Dispositivo para espumar y procedimiento correspondiente
CH710913B1 (de) * 2015-03-26 2020-03-31 Steiner Ag Weggis Verfahren und Dampflanze zum Erzeugen von Milchschaum.
WO2017059902A1 (fr) 2015-10-07 2017-04-13 Biontech Rna Pharmaceuticals Gmbh Séquences utr 3' permettant la stabilisation d'arn
CH711865B1 (de) * 2015-12-15 2019-10-15 Steiner Ag Weggis Verfahren und Vorrichtung zum Erzeugung von Milchschaum.
TWI757284B (zh) * 2016-05-03 2022-03-11 義大利商瑞亞梵朵斯服務公司 用於製備和分配飲料的設備和方法
JP6875899B2 (ja) 2017-03-28 2021-05-26 サンデン・リテールシステム株式会社 飲料供給装置
IT201700037089A1 (it) 2017-04-04 2018-10-04 Illycaffe Spa Assieme di erogazione di una bevanda fredda
PT3398487T (pt) * 2017-05-03 2022-03-31 Cup&Cino Kaffeesystem Vertrieb Gmbh & Co Kg Procedimento e dispositivo para produção de espuma de leite
JP6928910B2 (ja) * 2017-05-15 2021-09-01 パナソニックＩｐマネジメント株式会社 飲料製造装置
JP6842990B2 (ja) * 2017-05-19 2021-03-17 サンデン・リテールシステム株式会社 飲料供給装置
GB201715434D0 (en) * 2017-09-25 2017-11-08 Hatfield Timothy Jack Portable becerage dispenser
AU2018379336B2 (en) * 2017-12-08 2024-02-01 Societe Des Produits Nestle S.A. Device for producing milk and/or milk foam and associated system
EP3610762B1 (fr) * 2018-08-16 2021-06-16 CUP&CINO Kaffeesystem-Vertrieb GmbH & Co. KG Dispositif de préparation d'un liquide, en particulier du lait, pourvu de système de rinçage intégré et procédé de rinçage
KR101968048B1 (ko) * 2018-08-21 2019-04-10 권민지 거품커피 제조장치
DE102019203584B3 (de) 2019-03-15 2020-06-04 BSH Hausgeräte GmbH Kaffeeautomat
IT201900012693A1 (it) * 2019-07-23 2021-01-23 Cma Macch Per Caffe Srl Dispositivo e procedimento per la preparazione di latte schiumato
IT201900013656A1 (it) * 2019-08-01 2021-02-01 F Lab S R L Dispositivo per la produzione di schiuma di un liquido, particolarmente di un liquido alimentare quale latte, caffè o simili.
CA3151680A1 (fr) * 2019-08-22 2021-02-25 Jura Elektroapparate Ag Dispositif de moussage de lait et procede de production de mousse de lait
DE102021202787A1 (de) 2021-03-23 2022-09-29 BSH Hausgeräte GmbH Milchschäumer und Heißgetränkezubereitungseinrichtung
DE102021206911A1 (de) 2021-07-01 2023-01-05 BSH Hausgeräte GmbH Heißgetränkezubereitungsgerät mit steuerbarem Milchschäumer
DE102021128339A1 (de) * 2021-10-29 2023-05-04 Eversys S.A. Milchaufschäumvorrichtung mit Druckgasbeaufschlagung und Verfahren zur Herstellung von Milchschaum
US20240016333A1 (en) 2022-07-18 2024-01-18 Fluid-O-Tech S.R.L. Apparatus for frothing milk, particularly for a professional coffee machine, and related method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919176A1 (fr) * 1997-11-21 1999-06-02 Egro Ag Dispositif et procédé de préparation et distributation de lait moussé et/ou chaud
WO2004004523A1 (fr) 2002-07-09 2004-01-15 The Coca-Cola Company Systeme et procede de production de lait en mousse et traite a la vapeur pour boissons chaudes
US7550169B2 (en) * 2003-07-08 2009-06-23 The Coca-Cola Company System and method for producing foamed and steamed milk from milk concentrate
US6959642B1 (en) * 2004-04-07 2005-11-01 Egro Ag Device for portioned delivery of milk, particularly for cappuccino machines
EP1855571A2 (fr) 2005-02-28 2007-11-21 Coffee Nation Ltd. Appareil pour preparer des boissons
GB0504172D0 (en) 2005-03-01 2005-04-06 King S College London Surgical planning
ES2297658T3 (es) 2005-11-11 2008-05-01 Gruppo Cimbali S.P.A. Aparato automatico para calentar y espumar leche.
JP2007259928A (ja) 2006-03-27 2007-10-11 Sanyo Electric Co Ltd ミルクフォーマー及びコーヒー飲料製造装置
US8357416B2 (en) 2007-01-09 2013-01-22 Steiner Weggis Ag Method and apparatus for the production of milk foam or milk-based drinks
EP2042063A1 (fr) 2007-09-28 2009-04-01 Cafina AG Agencement destiné à la production de mousse de lait
PT2055215E (pt) 2007-10-08 2010-10-19 Gruppo Cimbali Spa Aparelho e processo para a preparação de leite em diversas condições de temperatura e consistência, numa máquina de café para a formação de vários tipos de bebidas
EP2156771A1 (fr) 2008-08-19 2010-02-24 Koninklijke Philips Electronics N.V. Dispositif et procédé de refroidissement d'un liquide
CN102196753B (zh) 2008-09-02 2013-07-31 雀巢产品技术援助有限公司 利用离心力控制的饮料生产设备
DE102008058139B4 (de) * 2008-11-20 2017-12-21 Spengler Gmbh & Co. Kg Aufschäumeinheit zum Aufschäumen von Milch und Anordnung enthaltend eine solche Aufschäumeinheit
DK2225976T3 (da) 2009-03-03 2012-11-26 Delica Ag Indretning til fremstilling af mælkeskum
DK2294952T3 (da) 2009-09-14 2012-04-10 Schaerer Ag Indretning til udskænkning af mælk og/eller mælkeskum
DE102009041809B4 (de) 2009-09-18 2013-05-16 Franke Kaffeemaschinen Ag Vorrichtung und Verfahren zum Aufschäumen eines flüssigen Lebensmittels, insbesondere von Milch
DK2636343T3 (da) * 2012-03-06 2014-09-22 Delica Ag Indretning og fremgangsmåde til fremstilling af mælkeskum og/eller opvarmet mælk

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012159729A1 *

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DE102011102734A1 (de) 2012-11-22
US9381473B2 (en) 2016-07-05
JP2014516679A (ja) 2014-07-17
WO2012159729A8 (fr) 2013-02-28
WO2012159729A1 (fr) 2012-11-29

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