Non-combustible aerosol delivery system

Abstract

To provide a non-combustible aerosol delivery system for filtering exhaled breath.SOLUTION: A non-combustible aerosol delivery system 100 comprises: a power source 110; a mouthpiece 120; a filter unit 130; an inhalation airflow path adapted to convey vapor generated by the aerosol delivery system 100 to a user during inhalation, and an exhalation airflow path adapted to convey breath from the user to the filter unit during exhalation into the aerosol delivery system 100; where (a) the inhalation airflow path and the exhalation airflow path are entirely distinct from each other, (b) the mouthpiece 120 forms both a portion of the inhalation airflow path and a portion of the exhalation airflow path, or (c) the non-combustible aerosol delivery system 100 further comprises a diverter assembly.SELECTED DRAWING: Figure 1

Description

Background to the disclosure

[0001] [Field] The present disclosure relates to a non-combustible aerosol delivery system.

[0002] The "Background" discussion provided herein is intended to provide a general overview of the context in which the present disclosure is placed. To the extent described in this Background section, the work of the inventors cited herein, as well as aspects of the present description that may not otherwise qualify as prior art at the time of filing, are not admitted, expressly or impliedly, as prior art to the present disclosure.

[0003] Non-combustion aerosol delivery systems, including systems such as electronic cigarettes (e-cigarettes), are known. Some such systems contain a reservoir of a liquid feedstock, typically containing a formulation containing an active ingredient such as nicotine, from which an aerosol is generated, e.g., by vaporization. The aerosol source for the aerosol delivery device then includes an aerosol-generating component, e.g., a heater having a heating element positioned to receive the liquid feedstock from the reservoir via capillary action. Other materials, such as plant-derived materials or gels containing active ingredients and / or flavorings, can similarly be heated to create an aerosol. Thus, more generally, e-cigarettes can be considered to include or receive a payload that is thermally vaporized. In other systems, the aerosol can be provided from a substance that may include one or more active ingredients, one or more flavorings, one or more aerosol-former materials, and / or one or more other functional materials.

[0004] To generate an aerosol for inhalation by a user, power is supplied to the heating element to vaporize a portion of the aerosolizable material in the vicinity of the heating element while or before the user inhales from the device. Such devices typically include one or more air inlet holes located away from the mouthpiece end of the system. When a user inhales through a mouthpiece connected to the mouthpiece end of the system, air is drawn in through the inlet holes and passes through the aerosol generating component. A flow path connects the aerosol generating component to the opening of the mouthpiece, and air drawn in through the aerosol source continues along this flow path to the mouthpiece opening, carrying with it a portion of the aerosol generated by the aerosol generating component. The aerosol-laden air exits the aerosol delivery device through the mouthpiece opening and is inhaled by the user.

[0005] In conventional systems, the smoking process is completed at this aerosol delivery stage.As of 2019, there were an estimated 3.6 million e-cigarette users in the UK alone (7.1% of the population).

[0006] Disclosed herein are improvements to this smoking process. Summary of the Invention

[0007] In a first aspect of the present disclosure, there is provided a non-combustible aerosol delivery system in which exhaled breath is filtered, comprising: Power supply and A mouthpiece and A filter unit, an inhalation airflow passageway configured to transport vapor generated by the aerosol delivery system to a user during inhalation; an exhalation airflow passageway configured to transfer breath from a user to the filter unit during exhalation into the aerosol delivery system; Equipped with (a) the intake airflow passage and the exhaust airflow passage are completely separate from each other; or (b) the mouthpiece forms both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage and is configured to move between an inhalation position and an exhalation position, wherein in the inhalation position the mouthpiece is in fluid communication with the remainder of the inhalation airflow passage and is not in fluid communication with the remainder of the exhalation airflow passage, and wherein in the exhalation position the mouthpiece is not in fluid communication with the remainder of the inhalation airflow passage and is in fluid communication with the remainder of the exhalation airflow passage; or (c) The non-combustible aerosol delivery system further comprises a diverter assembly, the diverter assembly comprising a multi-flap valve, the flaps of the multi-flap valve having a thickness of 0.7 mm or less.

[0008] In a second aspect of the present disclosure, there is provided a mouthpiece for use in a non-combustible aerosol delivery system, comprising: an inhalation airflow passageway configured to transport vapor generated by the aerosol delivery system to a user during inhalation; an exhalation airflow passageway configured to transfer breath from a user through the mouthpiece to the filter during exhalation into the aerosol delivery system; Equipped with (a) the intake airflow passage and the exhaust airflow passage are completely separate from each other; or (b) the mouthpiece includes an outlet that forms both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage, the mouthpiece being configured to move between an inhalation position and an exhalation position, wherein in the inhalation position, the outlet is in fluid communication with a remainder of the inhalation airflow passage and is not in fluid communication with a remainder of the exhalation airflow passage, and in the exhalation position, the outlet is not in fluid communication with a remainder of the inhalation airflow passage and is in fluid communication with a remainder of the exhalation airflow passage; or (c) The mouthpiece further comprises a diverter assembly, the diverter assembly comprising a multi-flap valve, the flaps of the multi-flap valve having a thickness of 0.7 mm or less.

[0009] The disclosed system allows a user to inhale aerosol from an aerosol delivery system and then exhale through the system. In this disclosure, the system processes the exhaled material by moving it along an exhalation airflow passage. The exhalation airflow passage is positioned to transport the user's breath to a filter unit. The filter unit can filter the exhaled material.

[0010] The system can be configured in several ways to effectively deliver inhalant to the user while also allowing for effective treatment of exhaled matter within the system. Examples of such systems are disclosed herein. Treatment of exhaled matter includes removing aerosol droplets from the vapor. In this way, a user may be able to use the system to inhale aerosols in locations where exhalation of aerosols into the environment is undesirable (which may be for a variety of reasons). During exhalation, the user can exhale into the system rather than into the environment. Such a system may operate as a personal exhaled air filter.

[0011] The system can be advantageous because it avoids blowback through the aerosol-forming material within the system, thereby reducing the rate at which the aerosol-forming material degrades. The system also advantageously avoids excessive flow restriction during exhalation.

[0012] In some instances, the inhalation and exhalation airflow paths are completely separate from one another. In this way, the system prevents re-aspiration of any exhaled material on subsequent puffs. Each inhalation is a new inhalation, and therefore no unintended material is introduced. This therefore improves the user experience of the system.

[0013] In some examples, the mouthpiece forms both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage and is configured to move between an inhalation position and an exhalation position, where in the inhalation position the mouthpiece is in fluid communication with the remainder of the inhalation airflow passage and not in fluid communication with the remainder of the exhalation airflow passage, and in the exhalation position the mouthpiece is not in fluid communication with the remainder of the inhalation airflow passage and is in fluid communication with the remainder of the exhalation airflow passage. By reusing part of the system as both the inhalation airflow passage and the exhalation airflow passage, this allows the system to be more compact and therefore can be provided in more ergonomic configurations, which may result in an improved user experience of the system.

[0014] In some examples, the mouthpiece is hinged to rotate between an inhalation position and an exhalation position. The use of a hinge may allow for rotation of the mouthpiece either manually or with an automatic trigger. A hinge is an option for achieving movement within a system where some of the airflow paths for inhalation and exhalation are the same. The use of a hinge may allow the system to use space for system components that might not normally be used. In this way, a hinge may allow the system to be designed in more ways, which may result in a more compact design. This may allow for more ergonomic configurations. This may ultimately improve the user experience of the system.

[0015] In some examples, the mouthpiece is rotatable to move between an inhalation position and an exhalation position. Rotation of the mouthpiece can be performed manually or by an automatic trigger. A rotating mouthpiece is an option for achieving movement within a system where some of the airflow paths for inhalation and exhalation are the same. The use of a rotating mouthpiece allows the system to use space for system components that might not normally be used. In this way, a rotating mouthpiece may allow the system to be designed in more ways, which may result in a more compact design. This may allow for more ergonomic configurations. This may ultimately improve the user experience of the system.

[0016] In one example, the mouthpiece has an inlet port that, in the inhalation position, is in fluid communication with the remainder of the inhalation airflow passage but not with the remainder of the exhalation airflow passage, and an outlet port that, in the exhalation position, is in fluid communication with the remainder of the exhalation airflow passage but not with the remainder of the inhalation airflow passage. This configuration of the inlet port in the inhalation position and the outlet port in the exhalation position is an option for achieving separation between the inhalation airflow passage and the exhalation airflow passage. This configuration prevents any exhaled material from being re-aspirated in subsequent puffs due to the separation of the two airflow passages. Each inhalation is a new inhalation, and therefore does not result in the inclusion of unintended particles. This therefore improves the user experience with the system.

[0017] In some instances, the inlet and outlet ports are the same. Reusing elements in a system is an option for reducing the number of components in the system. In this way, there may be fewer components that can malfunction, and as a result, the system may have a longer lifespan.

[0018] In some instances, the inlet and outlet ports are separate from one another. By ensuring that the entire inhalation airflow passage is separate from the exhalation airflow passage, it is possible to prevent exhaled material from condensing on any portion of the inhalation airflow passage. In this way, re-aspiration of condensed components from exhaled material is prevented. This ultimately allows the system greater control over the components inhaled by the user.

[0019] In one example, the mouthpiece is spring-loaded to move between the inhalation and dispensing positions. The use of a spring-loaded mouthpiece allows the mouthpiece to be biased more strongly toward one position than another. In one example, the mouthpiece may thus be biased toward the inhalation position, which allows the user to inhale, when in the "normal" position. Thus, during exhalation, the user must work against the spring-loaded mouthpiece to move toward the dispensing position. In this case, the system is ready and available in a default position, thereby improving the user experience of the system. In another example, the mouthpiece may be biased into the dispensing position, in which case the user is prompted by the system to move the mouthpiece to the inhalation position when returning to receiving exhaled material from the user. In this case, the user is prompted to use the exhaled material receiving function provided by the system.

[0020] In one example, the non-combustible aerosol delivery system further comprises a diverter assembly, the diverter assembly comprising a multi-flap valve, wherein the flaps of the multi-flap valve have a thickness of 0.7 mm or less. In another example, the flaps of the multi-flap valve have a thickness of 0.5 mm or less. In another example, the flaps of the multi-flap valve have a thickness of 0.3 mm or less. In another example, the flaps of the multi-flap valve have a thickness of 0.1 mm or less.

[0021] In one example, the filter unit contains at least one filter. The filter unit is configured to remove aerosol droplets from the vapor. In particular, filters including glass fiber, polypropylene, and combinations thereof, which are effective in capturing exhaled matter, can be used. A balance must be struck between the filtering provided by the filter used in the system (capturing exhaled matter) and the pressure drop experienced by the user during exhalation. The embodiments proposed herein provide a balanced system for capturing exhaled matter while simultaneously achieving a smooth inhalation and exhalation action for the user. Particles are collected when they come into contact with the filter fibers and do not re-enter the vapor, thus providing an effective filter.

[0022] In some instances, the filter unit further comprises a separator for separating the aerosol droplets from the vapor. A separator is a preferred component for removing the aerosol droplets from the vapor because it provides adequate removal while also adequately affecting the pressure during exhalation for the user.

[0023] In some instances, the filter unit comprises at least one deodorizing filter, which advantageously allows for the removal of undesirable odors from the exhaled vapor, which may therefore improve the user experience of the system.

[0024] In some examples, the non-combustible aerosol delivery system further includes a unit containing the vapor-forming material. The unit can be more easily removed from and replaced in the system than the vapor-forming material alone. The user interacts with the unit rather than the vapor-forming material, which is an easier and cleaner process. This, in turn, improves the user experience of the system.

[0025] In some examples, the filter unit and the unit containing the vapor-forming material together form a single assembly that can be removed from the non-combustible aerosol delivery system. In such a configuration, the manufacturer may be able to control the amount of vapor-forming material provided per filter unit and filter within the filter unit, so that the amount of vapor-forming material will be sufficient to provide an amount of vapor that would be sufficient to saturate or otherwise use up the filter under most usage patterns. In this way, the lifespan of the vapor-forming material and the filter can be matched or balanced, so that when the vapor-forming material and filter are used up, the single assembly can be removed and replaced with a new single assembly. This improves the ease of use of the device and therefore the user experience of the system.

[0026] In some examples, the non-combustible aerosol delivery system is an electronic cigarette. In some examples, the non-combustible aerosol delivery system is an aerosol-generating material heating system.

[0027] In some examples, a non-combustible aerosol delivery system generates aerosol using a combination of multiple aerosol-generating materials, one or more of which may be heated. The use of multiple aerosol-generating materials allows the system to provide a variety of metered doses of aerosol to the user. Greater control over the available options allows the user to tailor the generated aerosol to a custom aerosol option tailored to the user's preferences. In this way, the user experience of the system is improved.

[0028] Further aspects are provided according to the claims.

[0029] It is to be understood that the foregoing general summary of the disclosure and the following detailed description are exemplary of the disclosure but are not restrictive.

[0030] A more complete appreciation of the present disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description considered in connection with the accompanying drawings. [Brief explanation of the drawings]

[0031] [Figure 1] FIG. 1 is a schematic diagram illustrating a longitudinal cross-section of an example non-combustible aerosol delivery system. [Figure 2] FIG. 1 is a schematic diagram illustrating a longitudinal cross-section of an example non-combustible aerosol delivery system. [Figure 3] FIG. 1 is a schematic diagram illustrating a longitudinal cross-section of an example non-combustible aerosol delivery system. [Figure 4] FIG. 1 is a schematic diagram illustrating a longitudinal cross-section of an example non-combustible aerosol delivery system. [Figure 5A] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 5B] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 6A] FIG. 1 is a schematic diagram illustrating a side view of an example non-combustible aerosol delivery system. [Figure 6B] FIG. 1 is a schematic diagram illustrating a side view of an example non-combustible aerosol delivery system. [Figure 7A] 1A-1C are schematic diagrams illustrating cross-sectional views of examples of non-combustible aerosol delivery systems along with filter options for these examples. [Figure 7B] 1A-1C are schematic diagrams illustrating cross-sectional views of examples of non-combustible aerosol delivery systems along with filter options for these examples. [Figure 7C] 1A-1C are schematic diagrams illustrating cross-sectional views of examples of non-combustible aerosol delivery systems along with filter options for these examples. [Figure 8] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 9] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 10] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 11] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 12] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 13] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 14A] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 14B] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 15] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 16] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 17] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 18] FIG. 1 is a schematic diagram illustrating a cross-sectional view of an example non-combustible aerosol delivery system. [Figure 19] 1 is a graph of pressure in Pascals against flow rate in ml / s for three valve types. [Figure 20] FIG. 20 is a diagram showing a part of the graph in FIG. 19. Description of the embodiment

[0032] A non-combustible aerosol delivery system and a filter unit are disclosed. In the following description, several specific details are presented to provide a thorough understanding of the embodiments of the present disclosure. However, it will be apparent to those skilled in the art that these specific details do not necessarily have to be employed to practice the embodiments of the present disclosure. Conversely, where appropriate, specific details known to those skilled in the art are omitted for the sake of clarity.

[0033] As noted above, the present disclosure relates to non-combustion aerosol delivery, which may include electronic aerosol delivery systems or vapor delivery devices, such as e-cigarettes or nebulizers. Although the term "e-cigarette" may be used throughout the following description, this term may be used interchangeably with (electronic) aerosol / vapor delivery system. Similarly, the terms "vapor" and "aerosol" are referred to as equivalents herein.

[0034] Generally, the non-combustion aerosol delivery device can be an e-cigarette, also known as a vaping device or an electronic nicotine delivery system, although it is noted that the presence of nicotine in the aerosolizable material is not a requirement. In some embodiments, the non-combustion aerosol delivery device is a tobacco heating system, also known as a non-combustion heating system. In some embodiments, the non-combustion aerosol delivery device is a hybrid system for generating an aerosol using a combination of multiple aerosolizable materials, one or more of which can be heated. Each of the aerosolizable materials may be, for example, in the form of a solid, liquid, or gel, and may or may not contain nicotine. In some embodiments, the hybrid system comprises a liquid or gel aerosolizable material and a solid aerosolizable material. The solid aerosolizable material may include, for example, tobacco or a non-tobacco product. Meanwhile, in some embodiments, the non-combustion aerosol delivery device generates vapor or aerosol from one or more such aerosolizable materials.

[0035] Generally, an aerosol delivery system may comprise a non-combustion aerosol delivery device and an article for use with the non-combustion aerosol delivery device, although it is contemplated that an article that itself comprises a means for powering an aerosol generating component may itself form a non-combustion aerosol delivery device.

[0036] In some embodiments, the aerosolizable material may include an active material, an aerosol-forming material, and optionally one or more functional materials. The active material may include nicotine (optionally contained in tobacco or a tobacco derivative) or one or more other non-olfactory bioactive materials. Non-olfactory bioactive materials are materials included in the aerosolizable material to achieve a physiological response other than olfactory detection. The aerosol-forming material may include one or more of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. The one or more functional materials may include one or more of a fragrance, a carrier, a pH adjuster, a stabilizer, and / or an antioxidant.

[0037] Referring now to the drawings, in which like reference numerals designate identical or corresponding parts throughout the several views, FIG. 1 is a schematic diagram of a non-combustible aerosol delivery system 100. The non-combustible aerosol delivery system 100 is arranged for filtering exhaled breath. The non-combustible aerosol delivery system 100 includes a power source 110, a mouthpiece 120, and a filter unit 130. The non-combustible aerosol delivery system 100 has an inhalation airflow passage A configured to transport vapor generated by the aerosol delivery system 100 to a user during inhalation. The non-combustible aerosol delivery system 100 has an exhalation airflow passage B configured to transport breath from a user to the filter unit 130 during exhalation into the aerosol delivery system 100. In the schematic example of FIG. 1, passages A and B are shown extending in opposite directions through the mouthpiece 120.

[0038] System 100 is arranged to pass breath from a user through filter unit 120. Filter unit 120 is arranged to collect vapor that passes through system 100 in the user's exhaled breath. In this case, a user can optionally exhale through system 100 when they do not wish to exhale vapor. This can be particularly advantageous in areas where there is close proximity to others, or in areas where vapor generation is not permitted or recommended.

[0039] A user can therefore use the system 100 as a way to capture spit and not produce visible spit.

[0040] Referring now to Figure 2, there is shown a schematic diagram of a non-combustion aerosol delivery system 200. The non-combustion aerosol delivery system 200 of Figure 2 includes a power source 210, a mouthpiece 220, and a filter unit 230. The non-combustion aerosol delivery system 200 includes an inhalation airflow passage A and an exhalation airflow passage B. The non-combustion aerosol delivery system 200 includes an outlet 202 through which the inhalation airflow passage A and the exhalation airflow passage B pass.

[0041] 2, a portion of the intake airflow passage A and a portion of the exhaust airflow passage B are the same. Utilizing the same passage for portion P1 of intake airflow passage A and exhaust airflow passage B allows the option of using a single outlet 202 in system 200. In this manner, the reduction in the number of components of system 200 increases the overall lifespan of system 200. Similarly, shared portion P1 allows for a more compact construction of system 200, which may lead to an improved user experience of system 200.

[0042] An intake airflow passage A and an exhaust airflow passage B are shown. Both passages A and B enter into a passage P1, which branches off at P2. The intake airflow passage A enters into passage P1 at branch P2A. The exhaust airflow passage B exits passage P1 and enters into branch P2B. Thus, the two airflow passages A and B share a portion P1 of passages P1 and P2.

[0043] Inhalation airflow pathway A is shown leading from the aerosol-generating component 240 to the outlet 202 of the mouthpiece 220. Exhalation airflow pathway B is shown leading from the outlet 202 of the mouthpiece 220 to the filter unit 230. The aerosol-generating component 240 may include an arrangement of heater and aerosolizable material that, upon use, generates a vapor for inhalation.

[0044] System 200 includes a diverter assembly 250, shown in dotted lines. Such a diverter assembly 250 may be positioned to allow inhalation airflow from passageway portion P2A to passageway portion P1 during inhalation and to prevent any airflow from passageway portion P1 to passageway portion P2B during inhalation. The diverter assembly may be positioned to allow exhalation airflow from passageway portion P1 to passageway portion P2B during exhalation and to prevent any airflow from passageway portion P2A to passageway portion P1 during exhalation. In this manner, system 200 achieves controlled passage of exhalation airflow to a filter for processing while avoiding exhaled material from interacting with and consuming the aerosol-generating material in aerosol-generating component 240. Diverter assembly 250 may be a multi-flap valve, the flaps of which have a thickness of 0.7 mm or less. A multi-flap valve can be a system having at least two flaps, one that moves to allow air movement for aspiration and exhalation shutoff, and one that moves to allow air movement for exhalation and aspiration shutoff.

[0045] Referring now to Figure 3, a schematic diagram of a non-combustion aerosol delivery system 300 is shown. The non-combustion aerosol delivery system 300 of Figure 3 includes a power source 310, a mouthpiece 320, and a filter unit 330. The non-combustion aerosol delivery system 300 includes an inhalation airflow passage A and an exhalation airflow passage B. The non-combustion aerosol delivery system 300 includes an outlet 302 through which the inhalation airflow passage A may pass, and an inlet 304 through which the exhalation airflow passage B may pass.

[0046] The arrangement of Figure 3 is similar to that of Figure 2, except that the shared passageway portion P1 of Figure 2 is split into separate intake airflow passageway portions P1A and exhaust airflow passageway portions P1B.

[0047] Inhalation airflow passage A extends from inhalation airflow passage portion P1A to outlet 302. Although not shown, inhalation airflow passage A may begin, such as at an aerosol-generating component, and extend along passage portion P2A to reach passage portion P1A.

[0048] Exhalation airflow path B enters exhalation airflow path portion P1B at inlet 304. Exhalation airflow path B extends along exhalation airflow path portion P1B and then along path portion P2B. Although not shown in Figure 3, path portion P2B (as in Figure 2) can carry exhaled material through mouthpiece 320 to filter unit 330 for processing.

[0049] In this example, therefore, inhalation airflow path A and exhalation airflow path B are completely separate from one another. Therefore, an additional diverter assembly element as shown in FIG. 2 is not required. In this manner, system 300 prevents re-aspiration of any exhaled material in subsequent puffs. Each inhalation is taken along a path that a previous inhalation cannot take. Thus, contamination of each inhalation by unintentional inclusion of particles remaining in system 300 (via condensation or otherwise) from a previous inhalation cannot occur. This provides a more reproducible and familiar vapor for inhalation and prevents unintentional changes in vapor composition. This therefore improves the user's experience with the system.

[0050] Referring now to Figure 4, a schematic diagram of a non-combustion aerosol delivery system 400 is shown. The non-combustion aerosol delivery system 400 of Figure 4 includes a power source 410, a mouthpiece 420, and a filter unit 430. The non-combustion aerosol delivery system 400 has an inhalation airflow passage A and an exhalation airflow passage B. The non-combustion aerosol delivery system 400 has an outlet 402 through which the inhalation airflow passage A may pass, and an inlet 404 through which the exhalation airflow passage B may pass. The system 400 also includes a moving part 406.

[0051] System 400 also has a movable part 406 that can move to block either outlet 402 or outlet 404. Moving movable part 406 to block either inlet 404 or outlet 402 can block one of airflow paths A and B. In some instances, if the part separating airflow paths A and B were removed, outlet 402 and inlet 404 could be combined into a single larger inlet / outlet, and movable part 406 could simply move to block one or the other. In this case, movable part 406 blocks inlet 404, through which exudates enter system 400.

[0052] 4, the movable portion 406 is in a first position, the suction position, thus providing fluid communication through the device with the outlet 402 for the suction airflow passage A. The suction airflow passage A is therefore shown in solid lines. In contrast, the movable portion 406 blocks the inlet 404 for the exhalation airflow passage B, which is therefore shown in dotted lines.

[0053] By controlling the movement of the movable part 406, which may be part of the mouthpiece 420, it is possible to selectively activate one of the airflow passages and prevent the other from activating. In this way, one airflow passage can be completely isolated from the other. The movable part 406 can be triggered by passive or active means. The actuation method can be active or passive. Passive methods have associated cost benefits, while automatic methods are superior for ease of use.

[0054] In this way, system 400 prevents re-aspiration of any exhaled material in subsequent puffs. Each inhalation follows a path that cannot be taken by a previous exhalation. Thus, contamination of each inhalation by unintentional inclusion of particles remaining in system 400 (through condensation or otherwise) from a previous exhalation cannot occur. This provides a more reproducible and familiar vapor for each inhalation and prevents unintentional changes in vapor composition. This therefore improves the user experience of the system.

[0055] 5A and 5B, there is shown a cross-sectional view of a non-combustible aerosol delivery system 500. Although not shown, the non-combustible aerosol delivery system 500 has similar features to the previously shown examples of FIGS.

[0056] The non-combustible aerosol delivery system 500 of Figure 5A has an inhalation airflow passage A and an exhalation airflow passage B. The non-combustible aerosol delivery system 500 has an outlet 502 through which the inhalation airflow passage A and the exhalation airflow passage B may pass. The system 500 also has a movable portion 506 as part of a mouthpiece. The system 500 has a hinge 508. The mouthpiece 520 is hinged by the hinge 508 for rotation in the direction indicated by arrow R between an inhalation position and an exhalation position. The system 500 of Figures 5A and 5B has an inlet / outlet port 509 that is in communication with the remainder of the inhalation airflow passage A and not in communication with the remainder of the inhalation airflow passage B in the inhalation position (Figure 5A), with the inverse relationship relative to the exhalation position (Figure 5B).

[0057] The suction position is shown in Figure 5A. Intake airflow path A leads from the interior of system 500 to outlet 502 in Figure 5A. Exhaust airflow path B is shown as blocked in Figure 5A and is therefore dotted.

[0058] The discharge position is shown in Figure 5B. Discharge airflow path B in Figure 5B leads from outlet 500 to the filter of system 500. Intake airflow path A is shown as blocked in Figure 5A and is therefore dotted.

[0059] The use of rotation allows the system 500 to be designed more ergonomically because it utilizes a portion of the mouthpiece 520 for both channels A and B. In this way, the system 500 may be more compact and therefore easier for the user to handle and store.

[0060] 6A and 6B, there is shown a side view of a non-combustible aerosol delivery system 600. Although not shown, the non-combustible aerosol delivery system 600 has similar features to the previously shown example of FIGS.

[0061] System 600 of Figure 6 includes a hinge 608, as in system 500 of Figures 5A and 5B. Hinge 608 allows the mouthpiece to rotate between inhalation and dispensing positions in the direction indicated by arrow R. This indicates that the mouthpiece may move in multiple directions between the inhalation and dispensing positions in a variety of configurations. While movement is rotational in the examples of Figures 5A, 5B, 6A, and 6B, this is not required. In all of these cases, the inlet port 509 and outlet port 509 are the same.

[0062] 7A, 7B, and 7C, there is shown a cross-sectional view of a non-combustible aerosol delivery system 700. Although not shown, the non-combustible aerosol delivery system 600 has similar features to the previously shown example of FIGS.

[0063] The system 700 of FIG. 7A has two umbrella valves. One umbrella valve is positioned between the inlet / outlet of the system 700 to allow the inhalation airflow path A to be completed while blocking the exhalation airflow path during inhalation (left side of FIG. 7A). The other umbrella valve is positioned between the inlet / outlet of the system 700 to allow the exhalation airflow path B to be completed while blocking the inhalation airflow path during exhalation (right side of FIG. 7A). In this way, airflow paths A and B are maintained separate while sharing a portion of the airflow path (the mouthpiece outlet area). Airflow paths A and B are therefore partially separate paths, which has the advantages described above. The umbrella valves in FIG. 7A are positioned facing each other.

[0064] System 700 in FIG. 7B has two duckbill valves. One duckbill valve is positioned between the inlet / outlet of system 700 to allow inhalation airflow path A to be completed while blocking the exhalation airflow path during inhalation (left side of FIG. 7B). The other duckbill valve is positioned between the inlet / outlet of system 700 to allow exhalation airflow path B to be completed while blocking the inhalation airflow path during exhalation (right side of FIG. 7B). In this way, airflow paths A and B are maintained separate while sharing a portion of the airflow path (the mouthpiece outlet area). Airflow paths A and B are therefore partially separate paths, which has the advantages described above. The duckbill valves in FIG. 7B are positioned facing each other.

[0065] System 700 of Figure 7C includes a combination duckbill-umbrella valve. The duckbill-umbrella valve is positioned between the inlet / outlet of system 700 to allow inhalation airflow path A to be completed through the duckbill portion of the valve while blocking the exhalation airflow path during inhalation. The duckbill-umbrella valve is positioned between the inlet / outlet of system 700 to allow exhalation airflow path B to be completed through the umbrella portion of the valve while blocking the inhalation airflow path during exhalation. In this way, airflow paths A and B are maintained separate while sharing a portion of the airflow path (the mouthpiece outlet area). Airflow paths A and B are therefore partially separate paths, which has the advantages discussed above.

[0066] 7C, the duckbill portion of the valve is located in the center, while the umbrella portion is maintained at the edge of the system 700. Such a configuration may be advantageous considering the temperature difference between inhalation and exhalation of the aerosol: the exhaled material will be cooler than the inhaled material and therefore safer to pass closer to the edge of the system 700 where the user's hand may grip during use.

[0067] 8, there is shown a cross-sectional view of a non-combustible aerosol delivery system 800. Although not shown, the non-combustible aerosol delivery system 800 has similar features to the previously shown examples of FIGS.

[0068] Non-combustible aerosol delivery system 800 has an outlet / inlet 802 for exhalation and inhalation located in mouthpiece 820. Non-combustible aerosol delivery system 800 also has a pair of flap valves 852, 856. Flap valve 852 is affixed to protrusion 853 and rests on protrusion 854. During inhalation, flap valve 852 moves away from protrusion 854 due to pressure changes within system 800. Flap valve 856 is affixed to protrusion 857 and rests on protrusion 858. During inhalation, flap valve 856 moves against protrusion 858, thereby preventing airflow into or out of exhalation airflow passage B. Conversely, during exhalation, flap valve 825 prevents airflow into or out of the inhalation airflow and allows airflow from outlet 802 to the filter via airflow passage B. The flap valves 852 and 856 are arranged facing opposite directions.

[0069] The mouthpiece may therefore move to allow airflow to pass between different passageways within the system. In one embodiment, a spring-loaded mouthpiece is arranged to move between an inhalation position and an exhalation position. Other mechanical elements, such as a slider, may be used to move the mouthpiece to engage one pathway or the other. A mechanical element, such as a slider, may move the mouthpiece or a valve. An electric valve (e.g., a flexible solenoid valve) may be used that can be activated by a button or the like on the system.

[0070] Any combination of valves, passages, diverters, spring-loaded mechanisms, or biasing mechanisms can be used in the system. Valve thicknesses have been investigated, and thickness values ​​between 0.1 mm and 0.7 mm, e.g., 0.1 mm and 0.5 mm, have been found to be particularly effective. These have been found to balance the requirements of valve actuation tensile strength and pressure drop. In particular, a 0.1 mm flap thickness has been found to provide a favorable pressure drop that does not compromise the user experience during dispensing. The thinner the flap, the less pressure is required to move it. Such flaps have shown minor leakage issues in several instances, and therefore, thicker flaps may be advantageous in certain cases. In particular, a 0.5 mm flap thickness has shown greater liquid retention and therefore does not leak as easily. Therefore, if liquid loss is not particularly desirable, a 0.5 mm valve thickness may be selected. A 0.3 mm thickness is a compromise that allows for both good pressure drop and good leakage prevention.

[0071] In some examples, an acceptable pressure drop for a reasonable user experience of the system is approximately 300 Pa. In that case, the valve thickness may be selected so as not to contribute more than approximately 300 Pa to the pressure drop. Of course, both the valve and the filter may contribute to the pressure drop, although not necessarily in a linear manner, and the overall effect can be calculated to be approximately 300 Pa while still providing effective filtering. The examples shown herein provide such an advantageous balance.

[0072] Similarly, it is important that the valve provide a good fit around the airflow passage that it is designed to block. In certain examples herein, the valve is actuated not by air pressure on discharge or suction, but by an external agent, e.g., a lever, switch, by magnetic force, etc. In these cases, the valve can be quite thick, since pressure drop on discharge is not a significant consideration. Rather, it is important that the valve provide an effective seal while the system is in use.

[0073] 9, there is shown a cross-sectional view of a non-combustible aerosol delivery system 900. Although not shown, the non-combustible aerosol delivery system 900 has similar features to the previously shown examples of FIGS.

[0074] Non-combustible aerosol delivery system 900 has an outlet 902, through which inhalants may travel from system 900 to a user. Non-combustible aerosol delivery system 900 also has an inlet 904, through which exhalants may travel from a user into system 900 and to a filter for processing. In this manner, another example of using multiple separate inlets / outlets is provided.

[0075] Referring now to Figures 10-19, there are shown cross-sectional views of a series of exemplary non-combustible aerosol delivery systems 1000-1900. Each of these has an outlet as in the previous examples, and the airflow path within the system is controlled in some manner. These are briefly outlined below. Although not shown, the systems shown have similar features to the previous examples of Figures 2-4.

[0076] 10, system 1000 has an outlet 1002 in mouthpiece 1020 into which exhalation airflow path B can enter and lead to a filter. System 1000 has a movement actuator, in this case a button actuator 1080, which can be moved about hinge 1008 to move mouthpiece 1020 between an inhalation position and an exhalation position.

[0077] 11, system 1100 has an outlet 1102 in mouthpiece 1120 into which exhalation airflow passage B can enter and lead to a filter. System 1100 has mouthpiece 1120 that can be rotated or twisted by a user to open or close valve 1180, which can move mouthpiece 1120 between inhalation and exhalation positions about an axis of rotation indicated at 1108.

[0078] 12, system 1200 has an outlet 1202 in mouthpiece 1220 into which exhalation airflow path B can enter and lead to filter 1280. System 1200 has mouthpiece 1220 with a separate passage for airflow path B into the portion containing filter 1280. The filter is contained within the exhalation path section.

[0079] 13, system 1300 has an outlet 1302 in mouthpiece 1320 into which exhalation airflow path B can enter and lead to a filter. System 1300 has a mouthpiece 1320 that a user can press down, thereby moving an opening 1322 in a portion of the mouthpiece within system 1300. By pressing down, the user is pushing against spring system 1380. The user exhales and presses down such that fluid communication is established between outlet 1302 and exhalation flow path B to the filter.

[0080] 14A and 14B, system 1400 has an outlet 1402 in a mouthpiece 1420 into which an exhalation airflow path B can enter and lead to a filter. System 1400 has a mouthpiece 1420 that a user can press down against a spring system 1480 to engage an opening 1422 with the exhalation airflow path. Spring system 1480 may also be activated by a button 1408 or lever 1409. The user exhales and presses down to achieve fluid communication between outlet 1402 and exhalation flow path B to the filter.

[0081] In Figure 15, system 1500 has an outlet 1502 in a mouthpiece 1520 into which exhalation airflow path B can enter and lead to a filter 1580. System 1500 has a mouthpiece 1520 with a separate passage for airflow path B into a portion that houses filter 1580. The filter is housed within the exhalation path section. A lever, button, switch, or the like 1509 can be actuated to open an opening 1522 to open and close exhalation airflow path B.

[0082] 16, system 1600 has an outlet 1602 at mouthpiece 1620 into which exhalation airflow path B can enter and lead to a filter. System 1600 has a bar 1608 that is movable between an inhalation position and an exhalation position. Bar 1608 can be moved by hand, by an electric switch, or the like. Bar 1608 can be moved directly by the user.

[0083] In FIG. 17, system 1700 includes an outlet 1702 in a mouthpiece 1720 into which an exhalation airflow path B can enter and lead to a filter. System 1700 includes a magnetic aperture element 1708 movable between an inhalation position and an exhalation position. When in the inhalation position, magnetic aperture element 1708 opens the inhalation airflow path and closes the exhalation airflow path. Conversely, when in the exhalation position, magnetic aperture element 1708 opens the exhalation airflow path and closes the inhalation airflow path. Magnetic aperture element 1708 can be moved manually or with an electrical switch or the like. Magnetic aperture element 1708 can include a solenoid valve or a flexible solenoid valve.

[0084] In FIG. 18 , system 1800 includes an outlet 1802 in a mouthpiece 1820 into which an exhalation airflow path B can enter and lead to a filter. System 1800 includes a vertically movable blocking element 1808. Vertical movement allows movement of the blocking element 1808 between an inhalation position and an exhalation position. When in the inhalation position, blocking element 1808 opens the inhalation airflow path and closes the exhalation airflow path. Conversely, when in the exhalation position, blocking element 1808 opens the exhalation airflow path and closes the inhalation airflow path. Blocking element 1808 may be a three-way actuated valve. Blocking element 1808 may be moved manually or by an electric switch, etc.

[0085] In the above examples, flap valves, umbrella valves, duckbill valves, combination duckbill-umbrella valves, and any combination thereof have been or could be used. The valves are not identical in performance and can therefore be selectively chosen based on the desired performance of the system being constructed. FIG. 19 shows a graph 1900 of pressure in Pascals versus flow rate in ml / s. Six graph lines 1902, 1904, 1906, 1908, 1910, and 1912 are shown. The performance of flap valves is shown for three different thicknesses: 0.1 mm in line 1902, 0.3 mm in line 1904, and 0.5 mm in line 1906. The performance of an umbrella valve can be seen in line 1908, the performance of a duckbill valve can be seen in line 1910, and the performance of a combination duckbill-umbrella valve can be seen in line 1912.

[0086] It can be seen that the flap valve has improved performance in terms of higher flow rate for the same pressure limit compared to the umbrella and duckbill valves. It can also be seen that the umbrella valve has improved performance over the duckbill and combination valves.

[0087] FIG. 20 shows a portion 2000 of the graph 1900 of FIG. 19. Graph portion 2000 shows three lines 2002, 2004, and 2006 corresponding to flap valve thicknesses of 0.1 mm, 0.3 mm, and 0.5 mm. It can be seen that the performance of the 0.1 mm and 0.3 mm flap valves is better than the 0.5 mm flap valve in terms of flow rate versus pressure. However, the 0.1 mm and 0.3 mm flap valves have poorer liquid retention characteristics than thicker valves (e.g., 0.5 mm). Therefore, a thickness range of about 0.1 mm to greater than 0.5 mm, such as about 0.7 mm, may be beneficial to balance the desired coefficient of liquid retention and pressure drop during aspiration.

[0088] The filter unit can be configured to effectively collect vapors from the user's breath. This can be done by using a filter comprising a material selected from glass fibers within the filter unit. In another example, the filter unit can additionally or alternatively include a high-efficiency particulate air (HEPA) filter. HEPA filters can be formed from non-woven glass filament fabric sheets, cellulose "paper" sheets, or plastic fibers. These can be formed into high-surface-area filters through the use of pleated structures and tortuous paths. HEPA filters can be made from either microglass fibers or polymers, or a mixture of both (combinations can be used that provide a stronger filter when pleated). Polymers are believed to have a modest advantage in terms of electrostatic attraction of particles. In another example, the filter unit can additionally or alternatively include a filter comprising a material selected from polypropylene.

[0089] Each of these filters has been shown to be particularly advantageous in retaining vapors.

[0090] The system can thus remove vapor from the user's breath exhaled through exhalation flow path B. Furthermore, the system can also remove vapor from the exhaled stream, for example by separating aerosol droplets from the vapor using a separator. In a particular example, the filter unit comprises a vortex separator for removing aerosol droplets from the vapor. This can be advantageously combined with a filter material in the filter unit to more efficiently remove vapor from the exhaled stream.

[0091] In some examples, the system may further include a complex flow path separator. The complex flow path separator may be part of the filter unit or separate from the filter unit. The complex flow path separator may redirect or divert the exhaled flow within the system. In some examples, the complex flow path separator lengthens the path the exhaled flow travels, thereby allowing for further separation of aerosol droplets from vapor. This, in turn, allows for a more efficient system for receiving and processing the exhaled flow. Reducing the pressure drop in the system during a user's exhalation is advantageous because it reduces the flow restriction experienced by the user. In this way, the user experience is improved because the above elements perform the functions of the system while reducing the pressure drop.

[0092] In some examples, the filter unit further comprises a water filtering unit. The water filtering unit may comprise water that can be passed through the exhaled material and filtered. Water filtering works by passing a liquid, in this case water, through the vapor bubbles and impacting them. This technique is particularly effective because the vapor bubbles have a large water-vapor surface area to interact with, although other liquids may be used. This technique may also be used in conjunction with other techniques to recover vapor from the user's exhaled breath.

[0093] In some examples, the filter unit may include at least one deodorizing filter. Advantageously, the deodorizing filter allows for the removal of undesirable odors from the exhaled vapor, thereby improving the user experience of the system. The at least one deodorizing filter may include at least one filter comprising activated carbon. Activated carbon is a particularly effective deodorizing filter.

[0094] In some examples, the filter unit may include at least one filter containing activated carbon. Activated carbon allows for the absorption of volatile compounds that may be present in exhaled matter. Removing and absorbing these compounds is particularly advantageous for preventing them from affecting other components of the system. A further advantage relates to the pressure drop experienced with activated carbon, which is similar to that experienced with several types of aerosolizable materials that may be used with the system to generate aerosols inhaled by the user. Thus, the user may experience little or no pressure drop during exhaled breathing. This ultimately improves the user experience of the system. The activated carbon may be provided as a block or the like, with several holes pierced therethrough to allow the passage of exhaled matter.

[0095] The system may include a vapor-forming material (or aerosol-generating material) in a unit. The vapor-forming material-containing unit may be located within the systems disclosed herein as a separate unit from the power source and filter. In some examples, the power source may be located at the distal end of the system. The vapor-forming material-containing unit may be proximal to and connected to the power source so that the unit can use power to form vapor from the vapor-forming material, such as by using the power to heat the vapor-forming material and generate vapor. The filter unit may be located at the proximal end of the system so that vapor from the vapor-forming material-containing unit can be directed to a mouthpiece or outlet near the user for inhalation before the user exhales back into the system. This configuration may be particularly advantageous for airflow and electrical connection arrangements.

[0096] In some examples, the filter unit and the unit containing the vapor-forming material together form a single assembly that can be removed from the non-combustible aerosol delivery system. In such a configuration, the manufacturer may be able to control the amount of vapor-forming material provided per filter unit and filter within the filter unit, so that the amount of vapor-forming material will be sufficient to provide an amount of vapor that would be sufficient to saturate or otherwise use up the filter under most usage patterns. In this way, the lifespan of the vapor-forming material and the filter can be matched or balanced, so that when the vapor-forming material and filter are used up, the single assembly can be removed and replaced with a new single assembly. This improves the ease of use of the device and therefore the user experience of the system.

[0097] In this regard, this may allow for easy removal of one portion of the system (a single assembly) that may require more frequent cleaning than, for example, the section of the system that houses the power supply. Because airflow does not have to pass through the power supply, the power supply is less likely to require frequent cleaning. By allowing cleaning of the portion that requires more frequent cleaning, the overall lifespan of the system is extended.

[0098] Furthermore, as the filter units age with use, replacement filters or the like can be inserted into the single assembly. Again, this extends the overall life of the system and prevents the entire system from being abandoned after the filter units are exhausted. The vapor-forming material may also be removed and replaced from the single assembly to extend the life of the system.

[0099] Alternatively, a single assembly may be used and discarded after use and replaced with another single assembly. This configuration would eliminate the need for the user to come into contact with vapor-forming materials, which may be uncomfortable and difficult to handle. In this way, the user experience of the system is improved. Furthermore, discarding only a single assembly ensures that the power supply portion of the system is not wasted. The power supply may be rechargeable in any of the examples herein, and therefore does not need to be discarded but can be recharged.

[0100] The non-combustion aerosol delivery device may have a generally cylindrical shape extending along a longitudinal axis and may optionally include two main components: a control body (containing a power source) and a cartomizer (containing a filter unit). The cartomizer may include an internal chamber containing a reservoir of content, such as a liquid containing nicotine, a vaporizer (e.g., a heater), and a mouthpiece. References to "nicotine" herein are intended to be merely exemplary and may be substituted with any suitable active ingredient. References to "liquid" as content herein are intended to be merely exemplary and may be substituted with any suitable content, such as plant-derived material (e.g., tobacco that is heated rather than burned) or a gel containing an active ingredient and / or flavoring. The reservoir may comprise a foam matrix or any other structure for holding the liquid until it is needed to deliver it to the vaporizer. In the case of liquid / flowable contents, the aerosol-generating component is for vaporizing the liquid, and the cartomizer may further include a wick or similar mechanism on or adjacent to the aerosol-generating component for transporting a small amount of liquid from a reservoir to the vaporization site. A heater is used as a specific example of an aerosol-generating component in this disclosure. However, it will be appreciated that other forms of aerosol-generating component (e.g., those utilizing ultrasound) can also be used, and that the type of aerosol-generating component used will depend on the type of content to be vaporized.

[0101] The power source may include a rechargeable cell or battery for powering the non-combustion aerosol delivery system. The power source may also include a circuit board for overall control of the non-combustion aerosol delivery system. In some examples, when the aerosol generating component receives power from the battery, which may be controlled by the circuit board, the aerosol generating component vaporizes a liquid, and the vapor is then inhaled by the user through the mouthpiece. In some specific embodiments, the main body is further provided with a manual activation device, such as a button, switch, or touch sensor located on the exterior surface of the main body.

[0102] The control body and cartomizer may be detachable from each other, but are joined together when the system is in use by a connector that provides a mechanical and electrical connection between the control body and the cartomizer. The electrical connector on the control body 20 that is used to connect to the cartomizer also serves as a socket for connecting a charging device (not shown) when the control body is detached from the cartomizer. The other end of the charging device may be plugged into a USB socket to recharge the battery in the control body of the non-combustible aerosol delivery device, which may be an e-cigarette. In other implementations, a cable can be provided for direct connection between the electrical connector on the control body and the USB socket.

[0103] The non-combustion aerosol delivery device is provided with one or more holes for air inlet. These holes connect to an air passageway that runs through the electronic aerosol supply device and leads to the mouthpiece. When a user inhales through the mouthpiece, air is drawn into this air passageway through one or more air inlet holes located at suitable locations on the exterior surface of the non-combustion aerosol delivery device. When the heater is activated and the nicotine from the cartridge is vaporized, an airflow passes through and mixes with the generated vapor, and this combination of airflow and generated vapor then travels out of the mouthpiece and is inhaled by the user. Except in the case of single-use devices, the cartomizer can be detached from the control body and disposed of (and replaced with another cartomizer if so desired) when the liquid supply is exhausted.

[0104] In some cases, non-combustible aerosol delivery devices may include means for controlling aspects of airflow in the system. The portion of the airflow path that provides a fluid communication path between the mouthpiece and one or more air inlet holes in the device may include a movable mechanism for altering the shape of the airflow path (e.g., the topology of the walls bounding the airflow passage) and thereby altering the airflow characteristics in the non-combustible aerosol delivery device. For example, movable mechanisms (such as valves, baffles, or inlets) may enable modification of operating parameters such as the resistance to draw of the system, the degree of turbulence in the airflow path, the direction of airflow near the aerosol-generating component, and the condensation path distance between the aerosol-generating component and the mouthpiece.

[0105] In some examples, the resistance to draw of the device can be modified by providing a means for selectively opening or closing one or more air inlets configured to admit air into an air passage included in the device. In some examples, an element may be provided for changing the direction of airflow into or out of the system. In this manner, the flow paths of the inlet airflow passage A and the outlet airflow passage B can be controlled. For example, a slider may be provided on the outer housing of the system that is configured to be moved (e.g., rotated about or displaced along an axis) to different positions. The slider may be mechanically or electrically connected to effect the resulting change in paths A and B, such as via the movement of a baffle, valve, or the like.

[0106] In some examples, the slider may be actuated by an electromechanical actuator, such as a linear or rotary actuator, and the actuator position may be controlled by a control circuit to adjust the position of components that control the configuration of the airflow passages A, B. The device may also include other features for modifying the airflow through the device, controlled in a similar manner by the control circuit. For example, one or more movable baffles, a mechanical opening, or one or more air inlets may be disposed within the air passage of the system near the aerosol-generation component or, for example, the mouthpiece. These features may be moved to different positions to adjust the manner in which the incoming airflow exits the aerosol-generation component or enters / exits the mouthpiece of the system.

[0107] For example, one or more baffles can be moved to direct airflow into portion P1 of the path through system 200 (during inhalation) and into portion P2B of the path through system 200 (during exhalation).

[0108] It will be appreciated that the non-combustible aerosol delivery devices shown in Figures 1-3 are provided by way of example, and that various other implementations may be employed. For example, in some embodiments, the cartomizer may be provided as two separable components: a cartridge (replaceable when the liquid from the reservoir is depleted) comprising a liquid reservoir and a mouthpiece, and an aerosol generating component (typically retained) comprising a heater. As another example, the charging mechanism may be connected to an additional or alternative power source, such as an automobile cigarette lighter.

[0109] As used herein, a non-combustion aerosol delivery system, or non-combustion aerosol delivery system, is a system that releases compounds from an aerosol-forming material without combusting the aerosol-forming material, such as e-cigarettes, tobacco heating products, and hybrid systems for generating aerosols using a combination of aerosol-forming materials.

[0110] According to the present disclosure, a "non-combustible" aerosol delivery system is one in which the aerosol-generating materials that are components of the aerosol delivery system (or components thereof) are not combusted or burned for the purpose of facilitating delivery of at least one substance to a user.

[0111] In some embodiments, the delivery system is a non-combustion aerosol delivery system, such as an electrically powered non-combustion aerosol delivery system.

[0112] In some embodiments, the non-combustible aerosol delivery system is an e-cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.

[0113] In some embodiments, the non-combustion aerosol delivery system is an aerosol-generating material heating system, also known as a non-combustion heating system. An example of a system is a tobacco heating system.

[0114] In some embodiments, the non-combustion aerosol delivery system is a hybrid system for generating aerosol using a combination of multiple aerosol-generating materials, one or more of which may be heated. Each of the aerosol-generating materials may be, for example, in solid, liquid, or gel form, and may or may not contain nicotine. In some embodiments, the hybrid system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may include, for example, tobacco or a non-tobacco product.

[0115] Generally, a non-combustible aerosol delivery system may include a non-combustible aerosol delivery device and a consumable item for use with the non-combustible aerosol delivery device.

[0116] In some embodiments, the present disclosure relates to consumables, sometimes referred to as articles throughout this disclosure, that comprise aerosol-generating materials and are configured for use with non-combustible aerosol delivery devices.

[0117] In some embodiments, the non-combustion aerosol delivery system, e.g., the non-combustion aerosol delivery device, may include a power source and a controller. The power source may be, for example, an electrical power source or a heat-generating power source. In some embodiments, the heat-generating power source includes a carbon substrate that can be energized to deliver power in the form of heat to the aerosol-generating material or to a heat transfer material in proximity to the heat-generating power source.

[0118] In some embodiments, the non-combustible aerosol delivery system may include a consumable receiving area, an aerosol generator, an aerosol generating area, a housing, a mouthpiece, a filter, and / or an aerosol modifier.

[0119] In some embodiments, consumables used with the non-combustible aerosol delivery device may include an aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol-generating area, a housing, a wrapper, a filter, a mouthpiece, and / or an aerosol modifier.

[0120] What has been disclosed and described in the above discussion are merely exemplary embodiments of the present disclosure. As those skilled in the art will understand, the present disclosure may be embodied in other specific forms without departing from its essential characteristics. Accordingly, the contents of the present disclosure are intended to be illustrative and not to limit the scope of the present disclosure and the claims. The present disclosure, including any readily discernible variations of the teachings herein, defines a portion of the terms of the claims above. The present disclosure includes the following embodiments. (Embodiment 1) 1. A non-combustible aerosol delivery system in which exhaled breath is filtered, comprising: Power supply and A mouthpiece and A filter unit, an inhalation airflow passage configured to transport vapor produced by the aerosol delivery system to the user during inhalation; an exhalation airflow passage configured to transfer breath from the user to the filter unit during exhalation into the aerosol delivery system; Equipped with (a) the intake airflow passage and the exhaust airflow passage are completely separate from each other; or (b) the mouthpiece forms both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage and is configured to move between an inhalation position and an exhalation position, wherein in the inhalation position the mouthpiece is in fluid communication with the remainder of the inhalation airflow passage and is not in fluid communication with the remainder of the exhalation airflow passage, and wherein in the exhalation position the mouthpiece is not in fluid communication with the remainder of the inhalation airflow passage and is in fluid communication with the remainder of the exhalation airflow passage; or (c) The non-combustible aerosol delivery system further comprises a diverter assembly, the diverter assembly comprising a multi-flap valve, the flaps of the multi-flap valve having a thickness of 0.7 mm or less. (Embodiment 2) 2. The non-combustible aerosol delivery system of embodiment 1, wherein the inhalation airflow passageway and the exhalation airflow passageway are completely separate from each other. (Embodiment 3) 2. The non-combustible aerosol delivery system of claim 1, wherein the mouthpiece forms both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage and is configured to move between an inhalation position and an exhalation position, wherein in the inhalation position, the mouthpiece is in fluid communication with the remainder of the inhalation airflow passage and is not in fluid communication with the remainder of the exhalation airflow passage, and wherein in the exhalation position, the mouthpiece is not in fluid communication with the remainder of the inhalation airflow passage and is in fluid communication with the remainder of the exhalation airflow passage. (Embodiment 4) 4. The non-combustible aerosol delivery system of claim 1 or claim 3, wherein the mouthpiece is hinged to rotate between the inhalation position and the exhalation position. (Embodiment 5) 4. The non-combustible aerosol delivery system of embodiment 1 or embodiment 3, wherein the mouthpiece is rotatable to move between the inhalation position and the exhalation position. (Embodiment 6) A non-combustible aerosol delivery system as described in embodiment 1 or embodiment 3, wherein the mouthpiece has an inlet port that is fluidly connected to the remainder of the inhalation airflow passage and not fluidly connected to the remainder of the exhalation airflow passage in the inhalation position, and an outlet port that is fluidly connected to the remainder of the inhalation airflow passage and not fluidly connected to the remainder of the exhalation airflow passage in the exhalation position. (Embodiment 7) 7. The non-combustible aerosol delivery system of embodiment 6, wherein the inlet port and the outlet port are the same. (Embodiment 8) 7. The non-combustible aerosol delivery system of embodiment 6, wherein the inlet port and the outlet port are separate from each other. (Embodiment 9) 9. The non-combustible aerosol delivery system of any one of embodiments 6, 7, or 8, wherein the mouthpiece is spring-loaded to move between the inhalation position and the exhalation position. (Embodiment 10) (c) The non-combustible aerosol delivery system of embodiment 1, further comprising a diverter assembly, the diverter assembly comprising a multi-flap valve, the flaps of the multi-flap valve having a thickness of 0.5 mm or less. (Embodiment 11) 11. The non-combustible aerosol delivery system of embodiment 10, wherein the flaps of the multi-flap valve have a thickness of 0.3 mm or less. (Embodiment 12) 11. The non-combustible aerosol delivery system of embodiment 10, wherein the flaps of the multi-flap valve have a thickness of 0.1 mm or less. (Embodiment 13) 13. A non-combustible aerosol delivery system according to any one of embodiments 1 to 12, wherein the filter unit contains at least one filter comprising a material selected from glass fiber, polypropylene, and combinations thereof. (Embodiment 14) 14. The non-combustible aerosol delivery system of any one of embodiments 1-13, wherein the filter unit further comprises a separator for separating aerosol droplets from vapor. (Embodiment 15) 15. The non-combustible aerosol delivery system of any one of embodiments 1 to 14, wherein the filter unit comprises at least one deodorizing filter. (Embodiment 16) 16. The non-combustible aerosol delivery system of any one of embodiments 1-15, further comprising a unit containing a vapor-forming material. (Embodiment 17) 17. A non-combustible aerosol delivery system as described in embodiment 16, wherein the filter unit and the unit containing the vapor-forming material together form a single assembly that is removable from the non-combustible aerosol delivery system. (Embodiment 18) 18. The non-combustible aerosol delivery system of any one of embodiments 1-17, wherein the non-combustible aerosol delivery system is an electronic cigarette. (Embodiment 19) 19. The non-combustion aerosol delivery system of any one of embodiments 1-18, wherein the non-combustion aerosol supply system is an aerosol-generating material heating system. (Embodiment 20) 20. The non-combustion aerosol delivery system of any one of embodiments 1-19, wherein the non-combustion aerosol supply system generates an aerosol using a combination of multiple aerosol-forming materials, one or more of which can be heated. (Embodiment 21) 1. A mouthpiece for use in a non-combustible aerosol delivery system, comprising: an inhalation airflow passage configured to transport vapor produced by the aerosol delivery system to the user during inhalation; an exhalation airflow passage configured to transfer breath from the user through a mouthpiece to the filter during exhalation into the aerosol delivery system; Equipped with (a) the intake airflow passage and the exhaust airflow passage are completely separate from each other; or (b) the mouthpiece includes an outlet that forms both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage, the mouthpiece being configured to move between an inhalation position and an exhalation position, wherein in the inhalation position, the outlet is in fluid communication with a remainder of the inhalation airflow passage and is not in fluid communication with a remainder of the exhalation airflow passage, and in the exhalation position, the outlet is not in fluid communication with a remainder of the inhalation airflow passage and is in fluid communication with a remainder of the exhalation airflow passage; or (c) the mouthpiece further comprising a diverter assembly, the diverter assembly comprising a multi-flap valve, the flaps of the multi-flap valve having a thickness of 0.7 mm or less.

Claims

1. 1. A non-combustible aerosol delivery system in which exhaled breath is filtered, comprising: Power supply and A mouthpiece and A filter unit, an inhalation airflow passage configured to transport vapor produced by the aerosol delivery system to a user during inhalation; an exhalation airflow passage configured to transfer breath from the user to the filter unit during exhalation into the aerosol delivery system; Equipped with the mouthpiece forms both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage and is configured to move between an inhalation position and an exhalation position, wherein in the inhalation position, the mouthpiece is in fluid communication with the remainder of the inhalation airflow passage and is not in fluid communication with the remainder of the exhalation airflow passage, and wherein in the exhalation position, the mouthpiece is not in fluid communication with the remainder of the inhalation airflow passage and is in fluid communication with the remainder of the exhalation airflow passage.

2. 10. The non-combustible aerosol delivery system of claim 1, wherein the mouthpiece is hinged to rotate between the inhalation position and the exhalation position.

3. 10. The non-combustible aerosol delivery system of claim 1, wherein the mouthpiece is rotatable to move between the inhalation position and the exhalation position.

4. 2. The non-combustible aerosol delivery system of claim 1, wherein the mouthpiece has an inlet port that is fluidly connected to the remainder of the inhalation airflow passage and not fluidly connected to the remainder of the exhalation airflow passage in the inhalation position, and an outlet port that is fluidly connected to the remainder of the inhalation airflow passage and not fluidly connected to the remainder of the exhalation airflow passage in the exhalation position.

5. 5. The non-combustible aerosol delivery system of claim 4, wherein the inlet port and the outlet port are the same.

6. 5. The non-combustible aerosol delivery system of claim 4, wherein the inlet port and the outlet port are separate from each other.

7. 7. The non-combustible aerosol delivery system of claim 4, 5, or 6, wherein the mouthpiece is spring loaded to move between the inhalation position and the exhalation position.

8. 8. The non-combustible aerosol delivery system of claim 1, wherein the filter unit contains at least one filter comprising a material selected from glass fiber, polypropylene, and combinations thereof.

9. 9. The non-combustible aerosol delivery system of claim 1, wherein the filter unit further comprises a separator for separating aerosol droplets from vapor.

10. The non-combustible aerosol delivery system of any one of claims 1 to 9, wherein the filter unit comprises at least one deodorizing filter.

11. The non-combustible aerosol delivery system of any one of claims 1 to 10, further comprising a unit containing a vapor-forming material.

12. The non-combustion aerosol delivery system of any one of claims 1 to 11, wherein the non-combustion aerosol delivery system is an electronic cigarette.

13. The non-combustion aerosol delivery system of any one of claims 1 to 12, wherein the non-combustion aerosol delivery system is an aerosol-generating material heating system.

14. 14. The non-combustion aerosol delivery system of any one of claims 1 to 13, wherein the non-combustion aerosol delivery system generates an aerosol using a combination of multiple aerosol-forming materials, one or more of which can be heated.

15. 1. A mouthpiece for use in a non-combustible aerosol delivery system, comprising: an inhalation airflow passage configured to transport vapor produced by the aerosol delivery system to a user during inhalation; an exhalation airflow passage configured to transfer breath from the user through a mouthpiece to a filter during exhalation into the aerosol delivery system; Equipped with the mouthpiece including an outlet forming both a portion of the inhalation airflow passage and a portion of the exhalation airflow passage, the mouthpiece configured to move between an inhalation position and an exhalation position, wherein in the inhalation position the outlet is in fluid communication with a remainder of the inhalation airflow passage and is not in fluid communication with a remainder of the exhalation airflow passage, and wherein in the exhalation position the outlet is not in fluid communication with the remainder of the inhalation airflow passage and is in fluid communication with the remainder of the exhalation airflow passage.

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