DE102015107082A1 - Electronic cigarette for vaporizing two liquids - Google Patents

Abstract

An e-cigarette (1) for vaporizing two liquids comprising a first tank (7) containing a first liquid, a second tank (10) containing your second liquid, an evaporator (8, 9) connected to the tank ( 7, 10) is connected such that the liquid from the tank (7, 10) to the evaporator (8, 9) is passed and evaporated there, so that the vaporized liquid as a vapor to a mouthpiece (3) of the e-cigarette (1) is passed and through an outlet opening (13) emerges, wherein the vapor emerging from the e-cigarette (1) contains portions of the two liquids.

Description

The present invention relates to an electronic cigarette for vaporizing two liquids with a tank containing at least one liquid and an evaporator.

Electronic cigarettes are known in various embodiments in the art and are used as a substitute for conventional tobacco cigarettes that are burned. They are healthier compared to the tobacco cigarettes, since no carcinogenic substances are generated due to the liquid intended for evaporation.

In the known electronic cigarettes, the liquids or liquids contained in a tank are fed to an evaporator in which they are evaporated. The vapor is then directed via a flow channel to an outlet port in a mouthpiece and can be inhaled by the user. In order to convey the liquid to the evaporator, support materials are generally used. These may be formed, for example, from glass fibers, cotton material formed like a cotton, stainless steel sieves or the like.

Typically, an electronic cigarette (also called e-cigarette) in addition to the evaporator and the tank for storing the fluid control electronics to regulate the electrically operated evaporator. The evaporator and the control electronics are supplied by a voltage source, which is usually provided in the form of a commercially available battery cell, for example an AAA or AA battery.

Common to all electronic cigarettes is the purpose of being an alternative to traditional tobacco cigarettes. The aim is to replace the tobacco cigarettes. However, the user should be supplied with the previous nicotine content. For this reason, many developments of e-cigarettes are concerned with keeping the nicotine content constant in the exiting vapor of the e-cigarette. For example, in this EP 2 764 783 A1 Optimizations of the carrier material for supplying the liquid made to the evaporator or in DE 20 2013 010 986 U1 Improvements in the control electronics to ensure a constant control of the evaporator heating capacity.

In the context of the present invention, it has been recognized that there is a great need for e-cigarettes with which a proportion of active ingredient, e.g. The nicotine content, in the steam changed, can usually be reduced. By means of such cigarettes, it would be possible to achieve a weaning of an active ingredient, such as nicotine or perform a targeted therapy with an active ingredient.

The object resulting from the prior art is achieved by an e-cigarette with the features of claim 1 and by a method for generating steam in an e-cigarette according to claim 8.

The term "e-cigarette" or "electronic cigarette" is understood in the context of this application, a device in which a liquid is evaporated with an active ingredient. The active ingredient is preferably nicotine. However, other active substances to be inhaled are also conceivable, e.g. in the treatment of respiratory, bronchial or lungs, for their care or for the relief of complaints and diseases of the throat or the respiratory tract are used.

 The e-cigarette according to the invention is designed and set up to evaporate two different liquids. According to the invention, the e-cigarette comprises a tank containing at least a first liquid, a second tank containing a second liquid, and an evaporator connected to the tank such that the liquid can be passed from the tank to the evaporator to be evaporated there. There is a fluid connection between the tank and the evaporator. It can be made for example by a fiberglass material, a cotton material or a stainless steel mesh. Other versions are conceivable. Frequently, the commercially available and available on the market evaporator or evaporator units already provide the ability to supply liquid from a tank to the evaporator.

The vaporized liquid in the evaporator is passed as vapor (usually by means of an air flow, which is generated by the user by inhalation) to a mouthpiece of the e-cigarette and exits there from an outlet opening (outlet opening). The steam emerging from the e-cigarette has portions of not only one liquid but both liquids. Thus, it is possible to vaporize two different liquids with the e-cigarette according to the invention and to let the mixed vapor containing portions of the ingredients of the two liquids flow out of the e-cigarette so that the user can inhale this mixed vapor. This opens up the possibility of varying or prescribing the mixing ratio of the ingredients contained in the vapor.

To generate steam in an e-cigarette that includes portions of two vaporized liquids when the vapor from the mouthpiece of the e-cigarette exit, according to the invention is carried out according to the following steps:
First, two liquids are provided. The first liquid then evaporates in an evaporator to produce steam comprising ingredients of the first liquid. In another step, the second liquid is evaporated so that steam is generated with the contents of the second liquid. An airflow is directed from an inlet opening (inlet) of the e-cigarette through a flow channel to an outlet opening in the mouthpiece of the e-cigarette. The air stream passes through the evaporator and absorbs the vapor of at least one of the evaporated liquids. Preferably, the absorbed steam comprises the ingredients of the two evaporated liquids. Finally, the vapor which has been removed from the e-cigarette by the air flow and thus together with the air flow contains portions of the constituents of the two liquids.

The process steps listed here can also be carried out in a different order.

In order for the steam to contain portions of the ingredients of the two liquids when exited from the e-cigarette, several embodiments are possible according to the method described above and the e-cigarette according to the invention. On the one hand, a mixture of the two liquids can preferably be carried out in a preparatory step. The liquids are mixed in a predefined ratio desired by the user. They are evaporated together in a (single) evaporator. In this case, the mixed liquids may be stored in a single tank within the e-cigarette.

For carrying out the method according to the invention, the e-cigarette according to the invention according to claim 1 can also be used. Preferably, the e-cigarette then comprises, besides the (single) tank, which is considered to be the first tank and contains only the first liquid, a second tank containing the second liquid which is evaporated in the e-cigarette. The two liquids can therefore be stored in two different tanks within the e-cigarette. In this constellation, there are two different versions of the e-cigarette, which allow evaporation according to a serial and a parallel processing. The embodiments may include one or more evaporators.

Preferably, when using two tanks, a single evaporator may be provided. The liquids are fed to the one evaporator in a preferably predetermined mixing ratio, so that both liquids are vaporized simultaneously in the evaporator. For this purpose, in this preferred embodiment, each fluid connection of the evaporator to the two tanks of the e-cigarette. By controlling the fluid communication and / or the amount of liquid supplied to the evaporator (e.g., via controllable valves), the proportion of the constituents of the two liquids in the generated vapor which then exits the e-cigarette can be variably determined.

Alternatively and also preferably, the e-cigarette may have two evaporators, wherein the first evaporator is in fluid communication with the first tank, which comprises the first liquid, and the second evaporator is in fluid communication with the second tank, which comprises the second liquid. The liquids are then evaporated in each case in a "own" evaporator.

Preferably, in this embodiment, the vapor generated in the two evaporators is mixed so that the exiting vapor contains portions of the ingredients of the two liquids.

By suitable control and regulation of the individual evaporators and / or the control of the supply of the liquids to the evaporator, the mixing ratio of the constituents in the steam can be determined.

Preferably, the two evaporators can therefore work in parallel. Alternatively and also preferably, the two evaporators can also be connected in series. In this preferred embodiment, after generation in the first evaporator, the vapor of the first liquid is allowed to flow through the second evaporator where the second liquid is evaporated. Thus, the vapor of the second liquid will add to the vapor of the first liquid in the second evaporator as the vapor of the first liquid passes through the evaporator. The steam exiting the second evaporator now has portions of the two liquids, that is, it contains portions of the ingredients of the two liquids.

In the preferred embodiments, an airflow entering through an inlet port of the e-cigarette and flowing along a flow channel passes through the evaporator (s) before the airflow exits through an outlet port of the mouthpiece of the e-cigarette. When exiting the e-cigarette, the steam and thus the air stream always contains portions of the ingredients of the two liquids. The mixing ratio or the proportions of the ingredients may vary or be preset.

In a preferred embodiment, the (two) evaporators of the e-cigarette can be regulated independently of one another. In this way, depending on the fluid connection between tank and evaporator, the composition of the liquid in a tank and / or depending on the nature and design of the evaporator controls are made as composed of the e-cigarette exiting steam. In particular, the power of the individual evaporator is advantageously regulated. Thus, the vaporized amount of liquid in each evaporator can be controlled variably and this preferably independent of the other evaporator. The power control can be achieved for example by a clocking or a temporary switching on and off of the evaporator, ie by the duration of the current supply.

In a preferred embodiment, the e-cigarette comprises a control unit that regulates the evaporator (s) such that the evaporated amount of liquid can be changed.

The control unit can be designed and set up to regulate the two evaporators preferably independently of each other, so that a variable mixing ratio of the liquids can be set.

Particularly preferred is an embodiment of the e-cigarette in which the control unit can vary the mixing ratio. The mixing ratio can be configured time-dependent, quantity-dependent, predefined, individualized by the user or person-related for different users. For example, it is possible to set a plurality of profiles or schemes which specify in what mixing ratio the two liquids are vaporized or in which mixing ratio the contents of the respective liquids are to be contained in the exiting vapor.

For a time-dependent mixture, it is conceivable, for example, that the mixing ratio of the two liquids is changed as a function of the period of use of the e-cigarette. For example, while at the beginning of a nicotine chilling therapy the usual nicotine level should be obtained, the nicotine content in the vapor should be reduced on further and longer use of the e-cigarette. The reduction can be done according to a predetermined scheme or schedule. For this example, a first liquid is used, which contains a nicotine content, while the second liquid is free of nicotine. Thus, in the beginning, the evaporation of the liquid with nicotine could have the predominant and largest proportion, whereas only a smaller proportion of the liquid without nicotine is vaporized. The mixing ratio can be varied from 99% of one liquid to 1% of the other liquid up to 1% of the first liquor and 99% of the second liquor. The change in the mixing ratio can be carried out in predetermined steps, for example in percentage steps, in 1%, 2% or 5% steps or in 10% steps. For example, the mixing ratio can be changed every 3 days, every week, or after 1 or 2 hours of use. A combination of time and useful life is possible.

The e-cigarette described herein is preferably used with two liquids, one of which z. B. contains nicotine. It is also possible to use several liquids, preferably two tanks being retained. At least one of the tanks then absorbs a liquid mixture. Of course, the liquids used may also contain other ingredients and need not necessarily include nicotine. For example, liquids with different flavors can be used and combined and their mixing ratio or intensity changed. Also, drugs or other agents with at least one of the liquids can be used for inhalation.

In a preferred embodiment, therefore, the control unit not only has a processor but also has a memory unit in which, for example, certain temporal mixing ratios are stored.

In addition to a time-dependent change in the mixing ratio of the liquids also a quantity-dependent change is possible. Here, the evaporated amount of liquid is monitored. Depending on the amount, the mixing ratio of the two liquids is changed.

For example, in a predefined change in the mixing ratio, every ten uses of the e-cigarette change the mixture ratio by a predetermined value. This usage dependent predefined change is independent of the duration of each use, the time interval, and the amounts evaporated in each use.

Moreover, especially if the e-cigarette has a storage unit, it is also possible to deposit individualized profiles for the mixing ratio. If an e-cigarette is used by more than one person, personal data can also be stored. In this case, the user must be recognized by the e-cigarette, which can be done in different ways. For example, by pressing various keys, a code identifying a user can be entered. It is also possible that a fingerprint is read out.

In a particularly preferred embodiment, the invention comprises Cigarette an interface to read data from the e-cigarette or transfer data to the e-cigarette. In particular, mixing ratios and diagrams or flow charts for mixing ratios can be transmitted to the e-cigarette in this case. When retrieving or reading the data values in the memory of the e-cigarette on the amount of evaporated liquid, the frequency of use, the total duration of use and other data can be retrieved and, for example, transferred to a computer. In order to detect the corresponding values, the e-cigarette in preferred embodiments comprises corresponding sensors, for example a clock, a counter, a flowmeter, a level gauge or other suitable sensors. The interface of the e-cigarette can on the one hand be a wired interface or a wireless interface (Bluetooth, WLAN, etc.). For example, the e-cigarette could have a USB port or a mini-USB port. Especially with a wireless interface, it is possible to control the e-cigarette via mobile device (mobile phone, tablet), to exchange data or to query states, eg the level, the service life etc.

The present invention will be explained in more detail with reference to the attached drawings. The illustrated features may also be present singly or in other configurations in preferred embodiments of the e-cigarette. Also, the features disclosed in combination may occur singly or in other combinations in preferred embodiments. The embodiments shown herein are not intended to limit the scope of the invention as defined in the independent claims.

An embodiment of the invention will now be described with reference to the accompanying drawings. Show it:

1 a schematic overall view of an e-cigarette;

2 a longitudinal section through the e-cigarette 1 ;

3 a cut detailed drawing of the e-cigarette 1 ;

4 a detailed drawing of two evaporators of the e-cigarette 1 in sectional view;

5 an exploded view of the individual parts of the e-cigarette 1 ;

6 a detailed drawing of an alternative embodiment of an e-cigarette;

7 a given mixture profile; and

8th an alternative mix profile.

The inventive e-cigarette for vaporizing two liquids is in a particular embodiment in the 1 to 5 shown in different views. 1 shows the e-cigarette 1 with a housing 2 and a mouthpiece 3 at the front end of the case. The housing 2 is substantially cylindrical and adapted to different, preferably individual mouthpieces 3 at the front end. At the rear (far) housing end closes a lid 4 the housing 2 from.

Like from the 2 and 5 it can be seen, the housing 2 the e-cigarette 1 a battery compartment 5 to accommodate a commercial battery, which through the removable lid 4 from the far end of the case 2 in the battery compartment 5 can be inserted. To the battery compartment 5 closes an installation space 6 for the electronics. The installation space 6 takes a control unit, not shown here, and a memory unit. At the installation space 6 adjoins an interface, also not shown, via an interface cover in the housing 2 can be covered. In this way it is possible to transmit or read data to the control unit and the storage unit.

In a preferred embodiment form the battery compartment 5 and at one end of the battery compartment 5 integrated installation space 6 for the electronics a battery compartment element 50 from the far end of the case 2 can be inserted. This is the lid 4 to remove. The battery compartment element is preferred 50 cylindrically shaped, wherein it is preferably slightly flattened in cross-section, so that between the housing 2 and the flattened part of the battery compartment element 50 forms a cavity. However, the flattening may only be so low that cylindrical batteries are still in the battery compartment 5 can be included.

The flattened part of the battery compartment 5 and the housing 2 devoted cavity serves as part of a flow channel 11 to allow air to flow through the housing 2 to lead.

Towards the mouthpiece 3 closes at the installation space 6 for the electronics and control unit a first tank 7 on, with a first evaporator 8th is in fluid communication. Towards the mouthpiece 3 is a second evaporator 9 arranged at the (towards the mouthpiece 3 ) a second tank 10 connects with the second evaporator 9 is in fluid communication.

The two tanks 7 . 10 and the two evaporators 8th . 9 are preferred in a liquid unit 70 arranged. A preferred embodiment of the liquid unit is in 5 shown. The essentially likewise cylindrical liquid unit is preferably in the housing from the side near the mouthpiece 2 used. In the liquid unit 70 are the two tanks 7 and 10 firmly integrated. Two recesses 78 . 79 extend transversely to the longitudinal axis of the liquid unit and are open to one side. The recesses 78 . 79 serve to accommodate the evaporator 8th . 9 which are preferably kept detachable. In this way, let the evaporator 8th . 9 simply replace, eg in the case of a repair or change.

Above the recesses 78 . 79 indicates the liquid unit 70 a section 71 on, passing through an evaporator lid 72 is closed. The evaporator lid 72 can be preferred in the neckline 71 clipped. He makes sure the vaporizers 8th . 9 not from the recesses 78 . 79 can slip out. The evaporator lid 72 is additionally held by the wall of the housing when the liquid unit 70 in the case 2 is inserted.

In a preferred embodiment, the liquid unit 70 below the evaporator lid 72 two closable openings on top of the tanks 7 . 10 in fluid communication and over the tanks 7 . 10 can be filled.

The liquid unit 70 and the battery compartment element 50 are preferably designed so that they can be positioned and fixed against rotation in the housing. Their longitudinal position can be achieved by positioning means within the housing 2 be predetermined. By appropriate dimensioning and longitudinal extent become the liquid unit 70 and the battery compartment element 50 through the housing cover 4 and the mouthpiece 3 at the two ends of the housing 2 positioned. They are immovable in the housing 2 stored.

The e-cigarette 1 has an inlet opening 12 on top of that in the lid 4 or preferably in the housing 2 near the lid 4 can be arranged. The inlet opening 12 is positioned so that air entering through it into the flow channel 11 below the battery compartment element 50 can flow. The flow channel 11 extends from the inlet opening 12 to one in the mouthpiece 3 arranged outlet opening 13 , passing through the liquid unit 70 runs.

The 3 and 4 can be seen that another section of the flow channel 11 up to a bottom 14 of the first evaporator 8th extends. Here is a deflection by preferably 90 °, so that the continuation of the flow channel 11 through a transverse to the longitudinal axis of the housing 2 extending through-hole 15 of the first evaporator 8th he follows. The through hole 15 runs from the bottom 14 up to the evaporator lid 72 , In another section of the flow channel runs 11 (parallel) below evaporator lid 72 up to a through hole 17 of the second evaporator 9 , which are essentially parallel to the through hole 15 of the first evaporator 8th extends. On the bottom 18 of the second evaporator 9 there is a deflection of the flow channel 11 in a third section, different from the liquid unit 70 in the direction of the mouthpiece 3 and the outlet opening arranged there 13 extends.

Thus, a through the entrance opening 12 incoming air flow in the flow channel 11 along the underside of the battery compartment element 50 led to the liquid unit 70 enter and there first the first evaporator 8th and after redirection and forwarding below the evaporator cover 72 in the opposite direction the second evaporator 9 to flow through. After further deflection, the air flow flows out of the mouthpiece. The essential course of the air flow is in 3 shown as an arrow.

Through the chosen guidance of the air flow and the formation of the flow channel 11 The air flow is first through the first evaporator 8th directed. Here it takes up steam, the ingredients of the first tank 7 the e-cigarette 1 contains contained liquids. The one with the vapor of the liquid from the first tank 7 Enriched air stream is then passed through the second evaporator and this takes up steam, which by the evaporation of the second liquid from the second tank 10 is enriched. In this way, the steam contains on exit from the e-cigarette 1 Ingredients of the two in the tanks 7 and 10 contained liquids.

By suitable design of the fluid connections between the respective tanks 7 . 10 and the evaporators 8th . 9 It is preferable to determine the amount of the constituents of the liquids from the individual tanks. In this way, the composition of the e-cigarette 1 exiting steam.

Alternatively and also preferred is the composition of the e-cigarette 1 exiting steam by controlling the first evaporator 8th and / or the second evaporator 9 regulated.

To the level of liquids within the tank 7 . 10 to check, assigns the case 2 in the Area of the tanks 7 . 10 preferably two viewing windows 19 on. These are preferably made of transparent plastic or glass. It is also possible only one window 19 provided, if this is designed such that the level and degree of filling in both tanks 7 . 10 can be observed and controlled. For an optical visual inspection to take place, the liquid unit is 70 as well as the first tank 7 and the second tank 10 also at least partially transparent. Preferably, they are made of plastic. It is also possible to make larger parts or the entire e-cigarette transparent.

Alternatively, a level control of the two tanks 7 . 10 be performed by a level sensor, an internal optical sensor or other suitable measuring elements. It is possible at too low a level in at least one of the tanks 7 . 10 to issue a signal to alert the user.

In a preferred embodiment, the housing 2 the e-cigarette 1 made of metal, alternatively made of plastic or a similar material. In a preferred embodiment, the e-cigarette 1 a switch 20 to the e-cigarette 1 turn it on, turn it off, or make certain settings by pressing it several times, or recall predefined presets. The switch is preferred 20 , as in 4 shown above the evaporator lid 72 arranged. Other positions are conceivable, however, the position of the switch should be 20 be chosen so that the typical use of the e-cigarette 1 no accidental switching on or off can take place.

The in the 1 to 4 shown embodiment of the e-cigarette 1 represents a realization of a serial supply of steam to the e-cigarette 1 First, vapor is generated from the first fluid and admixed with the air stream before vapor is generated from the second fluid, and supplied to the already enriched air stream, so that finally vapor with contents of both liquids emerges from the e-cigarette.

6 now shows a section of an e-cigarette 1 in which a parallel supply of the steam to a stream of air flowing through the e-cigarette takes place. The clipping represents the liquid unit 70 and the airflow of the e-cigarette 1 dar. The leadership of the flow channel 11 is changed. The airflow entering at the bottom from the inlet port is parallel through the first evaporator 8th and the second evaporator 9 guided. When flowing through the evaporator 8th . 9 the air is enriched with vapor of a liquid at a time. At the top of the evaporator the air is brought together and then towards the mouthpiece 3 directed, where the air flow from the (not shown here) outlet opening of the mouthpiece emerges. Also in this embodiment, the one included in the e-cigarette 1 exiting airflow steam with ingredients from both liquids. A change and adjustment of the mixing ratio is also possible in this embodiment, since the two evaporators 8th . 9 can be controlled separately and independently or the liquid supply to the respective evaporators can be changed separately and independently.

By preferably independently controllable evaporator 8th . 9 and the control unit, it is possible for weaning of nicotine or another active ingredient contained in one of the two liquids, the mixing ratio of the e-cigarette 1 to change exiting steam. For this purpose, in a storage unit of the e-cigarette 1 different profiles or schemes are stored.

7 shows a typical profile in which over several periods, the mixing ratio of the ingredients of the first liquid and the second liquid is changed. It is assumed that the first liquid in the first tank 7 and the second liquid in the second tank 10 is stored. In the example shown, the first liquid contains the ingredient to be reduced, such as nicotine. A first turn 21 of the graph shows a continuously decreasing trend in which the mixing ratio of the first liquid to the second liquid decreases over six periods. A second turn 22 is stepped and also has a decreasing mixing ratio. The content of the first active substance (which is contained in the first liquid) is also reduced, here by leaps and bounds, with phases of reduction always followed by phases in which the mixing ratio remains unchanged. The change in the mixing ratio can generally be carried out, for example, in steps of 5%, 10%, 15% or 20%. Finer or other gradations are possible and may be dependent on therapy. For example, they can be done in 3%, 4%, 6%, 7%, or 8% increments. The areas in which the mixing ratio changes, may have different slopes (slope). 8th shows an alternative profile over a day from about 6 o'clock to about 23 o'clock, during which the mixing ratio of the ingredients of the first liquid and the second liquid is changed over several periods. It is again assumed that the first liquid in the first tank 7 contains the ingredient to be reduced, such as nicotine. The second liquid is in the second tank 10 stored. A first turn 23 The graph shows a continuously decreasing trend in which the mixing ratio of the two liquids decreases. A second turn 24 shows the possibility of customizing the profile of curve 23 , Leave this custom profile Adjustments to the change in the mixing ratio, while the falling course is maintained. In this profile by curve 24 the user has one - in comparison to curve 23 - Set higher value (eg nicotine value) in the morning (7 o'clock), while in the morning until about 13 o'clock the value is reduced compared to curve 23 , After lunch, the user will again receive a higher value of the ingredient concerned, as in the evening (about 21 clock). In contrast, the ingredient is also reduced in the afternoon. In total, the reduction also takes place as per curve 23 , but with individual deviations.

Of course, other profiles than those shown here are exemplary conceivable; they can be time-dependent, quantity-dependent, calendar-dependent or otherwise individualized.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2764783 A1 [0005]
• DE 202013010986 U1 [0005]

Claims (10)

E-cigarette for vaporizing two liquids comprising - a first tank ( 7 ) containing a first liquid, - a second tank ( 10 ), which contains a second liquid, - an evaporator ( 8th . 9 ), with the tank ( 7 . 10 ) is connected in such a way that the liquid from the tank ( 7 . 10 ) to the evaporator ( 8th . 9 ) and is evaporated there, so that the vaporized liquid as a vapor to a mouthpiece ( 3 ) of the e-cigarette ( 1 ) and through an outlet opening ( 13 ), whereby the out of the e-cigarette ( 1 ) exiting vapor contains fractions of the two liquids. E-cigarette according to claim 1, characterized in that both tanks ( 7 . 10 ) a fluid connection with the evaporator ( 8th . 9 ), so that both liquids in the evaporator ( 8th . 9 ) and the steam, preferably together, through the outlet opening ( 13 ) exit. E-cigarette according to claim 1, characterized by a second evaporator ( 9 ) with the second tank ( 10 ) is connected in such a way that a fluid connection between the tank ( 10 ) and the evaporator ( 9 ), wherein the liquids in the respective evaporator ( 8th . 9 ) and the steam is mixed such that the exiting vapor contains portions of the two liquids. E-cigarette according to claim 3, characterized in that the vapor of the first liquid after generation in the first evaporator ( 8th ) through the second evaporator ( 9 ) flows, in which the second liquid is evaporated, so that the exiting from the second evaporator vapor contains portions of the two liquids. E-cigarette according to claim 3 or 4, characterized in that the e-cigarette has an inlet opening ( 12 ), through which an air flow into a flow channel ( 11 ) and through both evaporators ( 8th . 9 ) is passed before the air flow through the outlet opening ( 13 ) of the mouthpiece ( 3 ), wherein the air flow when exiting through the outlet opening ( 13 ) Contains vapor which comprises proportions of the ingredients of the two liquids. E-cigarette according to one of claims 3 to 5, characterized in that the two evaporators ( 8th . 9 ) can be controlled independently of each other, in particular in their performance can be regulated, so that the evaporated amount of liquid in each evaporator ( 8th . 9 ) can be varied, preferably can be varied independently. E-cigarette according to one of the preceding claims, characterized in that - the e-cigarette ( 1 ) comprises a control unit which controls the evaporator ( 8th . 9 ) such that the evaporated amount of liquid can be changed, - wherein the control unit is preferably designed and set up, the two evaporators ( 8th . 9 ) in such a way that a desired, preferably variable mixing ratio of the liquids is set, wherein preferably the mixing ratio can be time-dependent, quantity-dependent, predefined, individualized and / or person-related. A method of producing vapor in an e-cigarette, wherein the vapor comprises portions of two vaporized liquids when the vapor is drawn from a mouthpiece ( 3 ) of the e-cigarette ( 1 ), comprising the following steps: - providing a first liquid and a second liquid, - evaporating the first liquid in an evaporator ( 8th ) to produce steam comprising ingredients of the first liquid, vaporizing the second liquid in an evaporator ( 9 ), so that steam is generated, which comprises ingredients of the second liquid, - directing an air flow from an inlet opening ( 12 ) through a flow channel ( 11 ) to an outlet opening ( 13 ) in the mouthpiece ( 3 ), whereby the air flow the evaporator ( 8th . 9 ) and takes up the vapor of at least one vaporized liquid, - passing the stream of air comprising vapor out of the outlet opening ( 13 ), wherein the vapor contains proportions of the ingredients of the two liquids. A method according to claim 8, characterized in that the two liquids are mixed in a preliminary step in a predefined ratio and together in an evaporator ( 8th . 9 ) are evaporated. A method according to claim 8, characterized in that the two liquids in each case an evaporator ( 8th . 9 ) are vaporized and mixed into the resulting vapors to a vapor having a predefined ratio, before the vapor from the mouthpiece ( 3 ) in the e-cigarette ( 1 ) exit.

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