Aerosol generating article, thread filter, and cooling article including thread filter

Abstract

To provide an aerosol generating article, a thread filter, and a cooling article including the thread filter.SOLUTION: An aerosol generating article includes: an aerosol generating unit 11 including an aerosol generating material; a tobacco filling unit 12 arranged at a downstream end of the aerosol generating unit; a cooling unit 13 arranged at a downstream end of the tobacco filling unit and configured to cool an aerosol; and a thread filter 14 arranged at a downstream end of the cooling unit and including a filter member 141 and a thread member 142 which have different flow rates of the aerosol.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an aerosol generating article, a thread filter, and a cooling article including the thread filter.

Background Art

[0002] Recently, there has been an increasing demand for alternative methods to overcome the disadvantages of conventional cigarettes. For example, there is an increasing demand for a method of generating an aerosol by heating an aerosol generating substance in an aerosol generating article, rather than by burning a conventional cigarette to generate an aerosol. As a result, research on heated cigarettes or heated aerosol generating devices is actively underway.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The problem to be solved by the present invention is to provide an aerosol generating article, a thread filter, and a cooling article including the thread filter. The technical problems to be solved by the present invention are not limited to the above technical problems, and there may be other technical problems.

Means for Solving the Problems

[0004] An aerosol generating article according to an embodiment includes an aerosol generating part containing an aerosol generating substance; a tobacco filling part disposed at a downstream end of the aerosol generating part; a cooling part disposed at a downstream end of the tobacco filling part and configured to cool the aerosol; and a thread filter disposed at a downstream end of the cooling part and including a filter member and a thread member having different aerosol flow rates from each other. ​​​​​​​​​​​

[0005] The thread member according to the embodiment can be made of a material different from that of the filter member.

[0006] According to an embodiment, a thread filter for an aerosol generating article includes: a filter member made of a first material; and a thread member made of a second material different from the first material and surrounded by the filter member. and surrounded by the filter member and made of a second material different from the first material. a thread member made of a second material.

Advantages of the Invention

[0007] According to the present invention, the overall cooling ability and flavor persistence of the aerosol generating article can be improved. .

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4A

Figure 4B

Figure 4C

Figure 4D

Figure 5A

Figure 5B

Figure 5C

Figure 5D

Figure 5E

Figure 5F

Figure 5G

Figure 6A

Figure 6B

Figure 6C

Figure 6D

Figure 7

Figure 8

DETAILED DESCRIPTION OF THE INVENTION

[0009] According to one or more embodiments, the aerosol generating article includes: an aerosol generating part containing an aerosol generating substance, a tobacco filling part arranged at a downstream end of the aerosol generating part, a cooling part arranged at a downstream end of the tobacco filling part and configured to cool the aerosol; and a thread filter including a filter member and a thread member arranged at a downstream end of the cooling part and having different aerosol flow rates from each other. and a tobacco filling part arranged at a downstream end of the aerosol generating part, the cooling part arranged at a downstream end of the tobacco filling part and configured to cool the aerosol; and a filter member arranged at a downstream end of the cooling part and having different aerosol flow rates from each other and a thread member including a thread filter.

[0010] Also, the thread member can be made of a material different from that of the filter member.

[0011] Also, more aerosol flows through the filter member than through the thread member. The thread member has a density greater than that of the filter member so that more aerosol flows through it.

[0012] Also, the thread member has a density in the range of 450 kg / m 3 to 750 kg / m 3 . The filter member has a density in the range of 60 kg / m to 140 kg / m 3 to 140 kg / m 3 .

[0013] Also, the thread member can be made of polylactic acid. The filter member can be made of cellulose acetate.

[0014] Also, the filter member has a larger volume than the thread member.

[0015] Also, the length of the thread member is shorter than that of the filter member. The thread member can be separated from the downstream end of the thread filter.

[0016] Also, the thread member can be disposed at the center of the region occupied by the filter member.

[0017] Also, at least one of the thread member and the filter member contains a fragrance agent.

[0018] Also, at least one or more perforations can be formed in the cooling section for the inflow of external air.

[0019] Also, the distance between the perforation and the downstream end of the cooling section is longer than the distance between the perforation and the upstream end of the cooling section.

[0020] Also, the aerosol generating article according to one embodiment further includes a heat conductive trumpet for conducting heat. The heat conductive trumpet can be disposed outside the aerosol generating part and the tobacco filling part.

[0021] According to one or more embodiments, the thread filter for the aerosol generating article includes the following: a filter member composed of a first material; and a thread member surrounded by the filter member and composed of a second material different from the first material.

[0022] Also, the thread member has a density greater than that of the filter member such that a larger amount of aerosol flows through the thread member than through the filter member.

[0023] According to one or more embodiments, the cooling article for the aerosol generating article includes the following: a cooling part for cooling the aerosol, and a thread filter disposed at one end of the cooling part. The thread filter includes a filter member for the aerosol to flow through, and a thread member formed of a material different from the filter member.

[0024] The terms used in the embodiments are, as much as possible, the generally widely used terms currently, while considering the functions in the present invention. However, it also varies depending on the intention or precedent of those skilled in the art, the emergence of new technologies, etc. Also, in specific cases, there are terms arbitrarily selected by the applicant, and in that case, the meaning thereof will be described in detail in the description part of the invention. Therefore, the terms used in the present invention must be defined based on the meaning that the term has and the content throughout the whole of the present invention, rather than just the name of a simple term.

[0025] ​​​​​​​​​​​​Throughout the specification, when a part states that a certain component "includes", unless otherwise stated to the contrary, it does not exclude other components, but may further include other components. That is to say, it means that other components may be further included without excluding other components, unless there is a contrary statement.

[0026] Also, terms including ordinal numbers such as "first" or "second" used in this specification can be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

[0027] In addition, the term "downstream" described throughout this specification refers to the longitudinal direction of the aerosol-generating article that moves towards the user's mouth side in the aerosol-generating article during smoking, and the term "upstream" refers to the opposite direction. The terms "downstream" and "upstream" can be used to indicate the relative positions of the components of the aerosol-generating article.

[0028] The term "aerosol-generating article" refers to any article designed for a person to puff on the aerosol-generating article to smoke. The aerosol-generating article includes an aerosol-generating substance that is heated without combustion to generate an aerosol. For example, one or more aerosol-generating articles can be loaded on an aerosol-generating device and can generate an aerosol when heated by the aerosol-generating device. The shape, size, material, and structure of the aerosol-generating article vary depending on the embodiment. Examples of aerosol-generating articles include, but are not limited to, a cigarette-shaped substrate and a cartridge. Hereinafter, the term "cigarette" (i.e., used alone without modifiers such as "general", "traditional", or "combustion-type") ​​​​​​​​​​​​​​In case), it can refer to an aerosol generating article having a shape similar to that of a traditional combustion cigarette. It can be referred to.

[0029] As used herein, expressions such as "at least one", when preceding a list of elements, modify the entire list of elements and not the individual elements of the list. For example, the expression "at least one of a, b, and c" should be understood to mean only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c. It must be understood.

[0030] When an element or layer is referred to as "over", "above", "on", "connected to", or "coupled to" another element or layer, it means that it is directly over, above, on, connected to, or coupled to the other element or layer, or there may be intervening elements or layers. In contrast, when an element is referred to as being directly over, directly above, directly on, directly connected to, or directly coupled to another element or layer, there are no intervening elements or layers. The same numerals refer to the same element as a whole. One or more embodiments of the present invention relate to aerosol generating articles, thread filters, cooling articles including thread filters, and aerosol generating devices. Thread filters, and cooling articles including thread filters, are air ​​​​Since it is included in the aerosol generating article, it will be described together while describing the aerosol generating article.

[0031] An aerosol generating article according to one embodiment includes at least one of an aerosol generating section, a tobacco filling section, a cooling section, and a filter section (for example, a mouthpiece or a mouthpiece section). Here, the filter section is also a thread filter according to the embodiment. For example, the filter section is usually also an acetate filter, and the cooling section and the filter section contain capsules and flavoring agents.

[0032] An aerosol generating article according to still another embodiment may contain nicotine in the aerosol generating section.

[0033] On the other hand, the materials, order, and lengths of the aerosol generating section and the tobacco filling section are not limited to specific examples, and the materials and lengths of the cooling section and the filter section are also not limited to specific examples.

[0034] The aerosol generating device generates an aerosol with nicotine by heating the aerosol generating section and the tobacco filling section, and the aerosol is discharged to the outside through the cooling section and the filter section.

[0035] For example, the aerosol generating device can generate an aerosol by heating at least one of the aerosol generating section and the tobacco filling section of the aerosol generating article. Or, the aerosol generating device can selectively or totally heat the inside or outside of the aerosol generating article.

[0036] A sheet made of a heat-conductive material is disposed on the outer contours of the aerosol generating section and the tobacco filling section of the aerosol generating article, and on the outer contour of the sheet, a sheet for fixing the segments of the aerosol generating article is provided. ​​​​​​​​​ Gallet paper can be arranged. At this time, the aerosol generating device can generate an aerosol by uniformly heating the outside of the sheet of the heat conductive material.

[0037] Hereinafter, based on the accompanying drawings, embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention pertains can easily implement them. However, the present invention can be embodied in various mutually different forms and is not limited to the embodiments described herein.

[0038] Also, even if omitted in the following description, the content described above may correspond to the aerosol generating article, the thread filter, the cooling article including the thread filter, and the aerosol generating device according to the present invention.

[0039] FIG. 1 is a schematic perspective view showing an example related to an aerosol generating article.

[0040] The aerosol generating article 1 includes a plurality of constituent units (that is, segments or parts). Referring to FIG. 1, the aerosol generating article 1 includes an aerosol generating part 11, a tobacco filling part 12, a cooling part 13, and a thread filter 14 including a filter member 141 and a thread member 142. Since the cooling part 13 and the thread filter 14 serve to cool the aerosol, these are collectively referred to as the cooling article 10.

[0041] The aerosol generating article 1 according to one embodiment is formed to have a length of 45 to 90 mm and also to have a diameter of 4.5 to 8 mm, but this is exemplary and is not limited to a specific length and diameter. The materials of the aerosol generating part 11 and the tobacco filling part 12 ​​​​​​​​​​​, The order and length are not limited to specific examples, and the materials and lengths of the cooling unit 13 and the thread filter 14 are also not restricted to specific examples.

[0042] Referring to FIG. 1, the aerosol generating unit 11 does not contain nicotine. Also, the aerosol generating unit 11 contains an aerosol product substance that does not contain nicotine. For example, the aerosol generating unit 11 contains at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol , diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but they are exemplary and are not limited to specific examples. For example, the aerosol generating unit 11 contains a substance in which glycerin and propylene glycol are mixed at a ratio of about 8:2. However, it is not limited to the above-mentioned mixing ratio. Also, the aerosol generating unit 11 contains other additive substances such as flavoring agents, wetting agents, and / or organic acids (organic acid). Also, the aerosol generating unit 11 contains a flavoring liquid such as menthol or a moisturizing agent.

[0043] The aerosol generating unit 11 includes a curled sheet, and the aerosol product substance is contained in the curled sheet. Also, other additive substances such as flavoring agents, wetting agents, and / or organic acids (organic ac

[0044] id) and flavoring liquids may be contained in the curled sheet. The curled sheet is also a sheet made of a polymer material. For example, the polymer material includes at least one of paper, cellulose acetate, lyocell , and polylactic acid. For example, the crimped sheet is a paper sheet that does not generate an odor due to heat even when heated to a high temperature. However, it is not limited thereto.

[0045] The aerosol generating part 11 is also formed to have a length in the range of 4 mm to 12 mm, but this is exemplary and not limited to a specific length. Desirably, the aerosol generating part 1 1 is also formed to have a length of about 10 mm.

[0046] Referring to FIG. 1, the tobacco filling part 12 is arranged at the downstream end of the aerosol generating part 11 so as to be able to. The aerosol generated in the aerosol generating part 11 passes through the tobacco filling part 12 to the cooling part 13 and flows. The other end (i.e., the upstream end) of the aerosol generating part 11 can be exposed to the outside be.

[0047] The tobacco filling part 12 contains nicotine. Also, the tobacco filling part 12 contains glycerin, pro aerosol product substances such as pylene glycol. Also, the tobacco filling part 12 contains flavor agents, wetting agents and / or other additive substances such as organic acids may be included. Also, a flavoring liquid such as menthol or a humectant can be added to the tobacco filling part 12 by being sprayed onto the tobacco filling part 12.

[0048] As an example, the aerosol product substance includes cut tobacco or reconstituted tobacco substance . Specifically, the aerosol product substance contains nicotine, and the nicotine is obtained by shaping or reconstituting tobacco leaves. As another example, the aerosol product substance includes free base nicotine, nicotine salts (nicotine salt), or a combination thereof. Specifically, nicotine may be natural nicotine or synthetic nicotine.

[0049] For example, the tobacco filling part 12 contains a blend of different types of tobacco leaves. Also , the blend is processed through various processing steps. The tobacco filling part 12 is not limited to a specific blend.

[0050] Nicotine salts are formed by adding a suitable acid containing an organic or inorganic acid to nicotine. The acid for forming the nicotine salt can be appropriately selected considering factors such as the blood nicotine absorption rate, the heating temperature of the heater, flavor or taste, solubility, etc. For example, the acid for forming the nicotine salt can be a single acid selected from the group consisting of benzoic acid, lactic acid, salicylic acid, lauric acid, sorbic acid, levulinic acid, pyruvic acid, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, capric acid, citric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid , linolenic acid, phenylacetic acid, tartaric acid, succinic acid, fumaric acid, gluconic acid, saccharic acid , malonic acid or malic acid, or a mixture of two or more acids selected from the said group, but this is exemplary and not limited to specific examples.

[0051] The tobacco filling part 12 can be manufactured in various ways. For example, the tobacco filling part 12 can be manufactured in a sheet (sheet) form or in a strand form. Also, the tobacco filling part 12 can be composed of cut tobacco where the tobacco sheet is finely cut.

[0052] The length of the tobacco filling part 12 can adopt an appropriate length within the range of 6 mm to 18 mm, but , and is not limited thereto. Desirably, the tobacco filling portion 12 is also formed to have a length of about 12 mm.

[0053] The cooling portion 13 is disposed at one end (i.e., the downstream end) of the tobacco filling portion 12 and is used to cool the aerosol. The aerosol flowing through the tobacco filling portion 12 to the cooling portion 13 is cooled to a predetermined temperature and flows to the thread filter 14. An aerosol generating portion 11 may be disposed at the other end (i.e., the upstream end) of the tobacco filling portion 12.

[0054] The cooling portion 13 may be made of cellulose acetate. For example, the cooling portion 13 may be made by adding a plasticizer (e.g., triacetin) to a cellulose acetate tow. For example, the monodenier of the cooling portion 13 is 5.0 and the total denier is 28,000, but this is exemplary and is not limited to a specific monodenier.

[0055] The cooling portion 13 is also a tubular structure made of paper and containing a hollow inside. An appropriate diameter within the range of 4 mm to 8 mm may be adopted for the diameter of the hollow contained in the cooling portion 13, but this is exemplary and is not limited to a specific diameter. Desirably, the hollow of the cooling portion 13 is also formed to have a diameter within the range of 7.0 mm to 7.5 mm. The cooling portion 13 is also formed to have a length within the range of 4 mm to 30 mm, but this is exemplary and is not limited to a specific length. Desirably, the cooling portion 13 is also formed to have a length of about 12 mm.

[0056] The cooling portion 13 is made of laminated paper composed of multiple sheets of paper. For example, the cooling portion 13 is also made of laminated paper composed of outer paper, intermediate paper, and inner paper, but is not limited thereto. On the other hand, the inner surface of the inner paper constituting the laminated paper can be coated with a predetermined substance (for example, polylactic acid). On the other hand, when the cooling unit 13 is made of paper, the overall thickness of the cooling unit 13 is within the range of 330 μm to 340 μm. Desirably, the overall thickness of the cooling unit 13 is about 333 μm,

[0057] but this is exemplary and not limited to a specific thickness. ~340μm. Desirably, the overall thickness of the cooling unit 13 is about 333μm, but it is exemplary and not limited to a specific thickness.

[0058] Also, when the cooling unit 130 is made of paper, the overall basis weight of the cooling unit 13 is 230 g / m 2 to 250 g / m 2 within the range. Desirably, the overall basis weight of the cooling unit 13 is about 24 0 g / m 2 but is not limited thereto.

[0059] At least one perforation 131 for allowing external air to flow into the cooling unit 13 can be formed. Thereby, the aerosol generating article 1 according to the embodiment can cool the aerosol using external air, so that the overall cooling capacity can be improved. Also, when the user puffs on the aerosol generating article 1, external air can flow in through the perforation 131 to improve the atomization amount.

[0060] The perforation 131 can be formed in each of the cooling unit 13 and the packaging material (cylinder) 15 (FIGS. 4A to 4D). In that case, the perforation 131 formed in the cooling unit 13 and the perforation 131 formed in the packaging material 15 are located at corresponding positions to each other.

[0061] Although not shown, the perforation 131 can be formed penetrating the cooling unit 13 along the radial direction It extends. The radial direction is also a direction perpendicular to the longitudinal direction in which the aerosol generating article 1 extends (i.e., the longitudinal direction (len gthwise direction)). The perforation 131 is embodied by a cylindrical hole as a whole, but this is exemplary and there is no limitation on the form as long as external air flows in.

[0062] The distance between the perforation 131 and the downstream end of the cooling part 13 can be formed longer than the distance between the perforation 131 and the upstream end of the cooling part 13. Thereby, the cooling effect through the perforation 131 can start from a point relatively far from the thread filter 14. Therefore, for the aerosol generating article 1 since the residence time of the external air inside the cooling part 13 increases, the cooling ability by the external air can be further improved.

[0063] The cooling part 13 and the perforation 131 are not limited to the above-described examples and can be applicable without limitation as long as they can perform the function of cooling the aerosol.

[0064] FIG. 2 is a schematic perspective view of a thread filter 14 according to an embodiment.

[0065] Referring to FIGS. 1 and 2, the thread filter 14 is disposed at the downstream end of the cooling part 13. The aerosol cooled through the cooling part 13 can be inhaled by the user through the thread filter 14.

[0066] The thread filter 14 includes a filter member 141 that provides different aerosol flow rates and a thread member 142.

[0067] The filter member 141 provides a primary flow path for the aerosol. That is, the filter The luta member 141 has a higher aerosol flow rate than the thread member 142. The filter member 14 1 can be produced by adding a plasticizer (e.g., triacetin) to cellulose acetate tow. The filter member 141 is also formed to have a length within the range of 4 mm to 30 mm, but this is exemplary and not limited to a specific length. Preferably, the filter member 141 is also formed to have a length of about 14 mm.

[0068] The filter member 141 is also manufactured to generate a fragrance. As an example, a flavoring liquid is sprayed onto the filter member 141, and separate fibers coated with the flavoring liquid can be inserted into the interior of the filter member 141.

[0069] In addition, the filter member 141 contains at least one capsule. As an example, the capsule contains a fragrance liquid, and the fragrance can be generated by the leaked fragrance liquid when the capsule is crushed. As another example, the capsule contains an aerosol product substance, and the aerosol can be generated by the leaked substance when the capsule is crushed. The capsule is also a structure in which the fragrance liquid or the aerosol product substance is covered with a film. The capsule has a spherical or cylindrical shape, but is not limited thereto.

[0070] The thread member 142 is disposed in an area not occupied by the filter member 141. The thread member 142 is combined with the filter member 141 while having a specific shape, or is in a state of being mixed with the luta member 141. The thread member 142 is also formed to have a length within the range of 4 mm to 30 mm, but this is exemplary and not limited to a specific length. ​​​​​​​​​No. Also, the thread member 142 can be formed in a generally longitudinally extending cylindrical shape, but this is exemplary and not limited to a specific shape.

[0071] At least one of the thread member 142 and the filter member 141 contains a flavoring agent.

[0072] For this purpose, for example, a perfume liquid can be sprayed onto the thread member 142, and separately fibers coated with the perfume liquid can be inserted inside the thread member 142. Also, the thread member 142 contains at least one capsule. As an example, the capsule contains a perfume liquid, and the perfume generated by the perfume liquid leaking out when the capsule is broken can produce a fragrance. As another example, the capsule contains an aerosol product substance, and an aerosol can be generated by the substance leaking out when the capsule is broken. The capsule is also a structure in which the perfume liquid or the aerosol product substance is covered with a film. The capsule has a spherical or cylindrical shape, but is not limited thereto.

[0073] When each of the thread member 142 and the filter member 141 contains a flavoring agent, the first flavoring agent contained in the thread member 142 and the second flavoring agent contained in the filter member 141 may be different from each other. As an alternative, the first flavoring agent and the second flavoring agent

[0074] can also be the same. For example, the thread member 142 can be made of a material having a density greater than that of the filter member 141. In that case, more aerosol can flow from the thread member 142 to the filter member 141. Therefore, according to the embodiment, the aerosol generation Since the fragrance agent contained in the thread member 142 can stay in the thread member 142 for a relatively long time, the fragrance persistence can be improved. For example, the thread member 142 can have a density in the range of 450 kg / m to 750 kg / m 3 while the filter member 14 3 1 can have a density in the range of 60 kg / m to 140 kg / m 3 The thread member 142 can be made of a material that can cool the aerosol. Thereby, 3 the aerosol generating article 1 cools the aerosol through the cooling part 13 and then cools the aerosol again through the thread member 14

[0075] 2 to provide an improved cooling effect. For example, the thread member 142 contains polylactic acid.

[0076] The thread member 142 is also formed to have a smaller volume than the filter member 141. Thus, the aerosol generating article 1 according to the embodiment can increase the area where the aerosol can easily flow on the thread filter 1 4, and therefore can improve the atomization amount. The thread member 142 has a smaller diameter (Diamete r) than the filter member 141.

[0077] Referring to FIG. 2, the thread member 142 can be disposed at the center of the area occupied by the filter member 141. Thereby, the aerosol generating article 1 according to the embodiment can be embodied such that the fragrance agent contained in the thread member 14

[0078] 2 is radially uniformly diffused.

[0078] FIG. 3 is a schematic side sectional view of a thread filter 14 according to another embodiment.

[0079] Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14. Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14. Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14. Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14. Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14. Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14. Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14. Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged spaced apart from the downstream end portion 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end portion 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is spaced apart from the downstream end portion 14a of the thread filter 14 and extends to the upstream end portion 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged spaced apart from each of the one end 14a and the other end 14b of the thread filter 14.

[0080] FIGS. 4A to 4D are schematic side sectional views showing an example of the aerosol generating article.

[0081] Referring to FIG. 4A, the outer contour of the aerosol generating article 1 is covered with the packaging material 15. Further, a heat conductive bellows 16 for conducting heat can be arranged in a partial area or the entire area between the packaging material 15 and the aerosol generating part 11 and the tobacco filling part 12. The heat conductive bellows 16 can be arranged outside the aerosol generating part 11 and the tobacco filling part 12. Referring to FIG. 4A, the outer contour of the aerosol generating article 1 is covered with the packaging material 15. Further, a heat conductive bellows 16 for conducting heat can be arranged in a partial area or the entire area between the packaging material 15 and the aerosol generating part 11 and the tobacco filling part 12. The heat conductive bellows 16 can be arranged outside the aerosol generating part 11 and the tobacco filling part 12. Referring to FIG. 4A, the outer contour of the aerosol generating article 1 is covered with the packaging material 15. Further, a heat conductive bellows 16 for conducting heat can be arranged in a partial area or the entire area between the packaging material 15 and the aerosol generating part 11 and the tobacco filling part 12. The heat conductive bellows 16 can be arranged outside the aerosol generating part 11 and the tobacco filling part 12. Referring to FIG. 4A, the outer contour of the aerosol generating article 1 is covered with the packaging material 15. Further, a heat conductive bellows 16 for conducting heat can be arranged in a partial area or the entire area between the packaging material 15 and the aerosol generating part 11 and the tobacco filling part 12. The heat conductive bellows 16 can be arranged outside the aerosol generating part 11 and the tobacco filling part 12.

[0082] Referring to FIG. 4B, the tobacco filling part 12 includes a cooling hole 121. In that case, the primary cooling of the aerosol is advanced in the cooling hole 121 of the tobacco filling part 12, and the secondary cooling is advanced in the cooling part 13 through which the once-cooled aerosol passes. Therefore, the aerosol generating article 1 according to the embodiment can improve the cooling ability as a whole. On the other hand, the material of the cooling part 13 Referring to FIG. 4B, the tobacco filling part 12 includes a cooling hole 121. In that case, the primary cooling of the aerosol is advanced in the cooling hole 121 of the tobacco filling part 12, and the secondary cooling is advanced in the cooling part 13 through which the once-cooled aerosol passes. Therefore, the aerosol generating article 1 according to the embodiment can improve the cooling ability as a whole. On the other hand, the material of the cooling part 13 Referring to FIG. 4B, the tobacco filling part 12 includes a cooling hole 121. In that case, the primary cooling of the aerosol is advanced in the cooling hole 121 of the tobacco filling part 12, and the secondary cooling is advanced in the cooling part 13 through which the once-cooled aerosol passes. Therefore, the aerosol generating article 1 according to the embodiment can improve the cooling ability as a whole. On the other hand, the material of the cooling part 13 Referring to FIG. 4B, the tobacco filling part 12 includes a cooling hole 121. In that case, the primary cooling of the aerosol is advanced in the cooling hole 121 of the tobacco filling part 12, and the secondary cooling is advanced in the cooling part 13 through which the once-cooled aerosol passes. Therefore, the aerosol generating article 1 according to the embodiment can improve the cooling ability as a whole. On the other hand, the material of the cooling part 13 Therefore, the cooling hole 121 is not provided.

[0083] Referring to FIG. 4C, the aerosol generating part 11 is arranged at the downstream end of the tobacco filling part 12 can be. That is, the aerosol generating article 1 in FIG. 4A and the aerosol generating article 1 in FIG. 4C have different arrangements of the aerosol generating part 11 and the tobacco filling part 12.

[0084] Referring to FIG. 4D, a heat conductive trumpet 16 can be arranged on a part of the outside of the tobacco filling part 12 and the aerosol generating part 11. That is, the heat conductive trumpet 16 is also formed to have a length shorter than that of the combined aerosol generating part 11 and the tobacco filling part 12. 11 and the tobacco filling part 12 combined. .

[0085] FIGS. 5A to 5G are schematic side sectional views showing other examples of the aerosol generating article.

[0086] Comparing with FIGS. 4A to 4D, in FIGS. 5A to 5E, examples in which nicotine is contained in the aerosol generating parts 21, 211, 212, 213 are illustrated. Also, in FIGS. 5F and FIG. 5G, examples in which the aerosol generating part 24 and the nicotine-containing part 25 are separate segments are illustrated.

[0087] The aerosol generating parts 21, 211, 212, 213 in FIGS. 5A to 5E may correspond to the combination of the aerosol generating part 11 and the tobacco filling part 12 in FIGS. 4A to 4D. On the other hand , the aerosol generating part 24 in FIGS. 5F and 5G may correspond to the aerosol generating part 11 in FIGS. 4A to 4D.

[0088] The outer shell of the aerosol generating article 2 in FIGS. 5A to 5G is covered with the packaging material 15. Also Alternatively, by selection, the aerosol generating article 2 further includes a thermally conductive bellows 16. As an alternative and, as shown in FIG. 5B, the aerosol generating article 2 does not include a thermally conductive bellows 1 6.

[0089] The aerosol generating part 21 is a single segment in FIG. 5A, while the aerosol generating part 21 includes multiple segments 211 , 212 as shown in FIG. 5C according to one embodiment.

[0090] Referring to FIGS. 5D and 5E, the aerosol generating article 2 includes a length extension part 214 made of cellulose acetate. For example, the length extension part 214 can be manufactured by adding a plasticizer (e.g., triacetin) to cellulose acetate tow. For example, the length extension part 214 can be manufactured by adding a plasticizer (e.g., triacetin) to cellulose acetate tow. plasticizer (e.g., triacetin).

[0091] The cooling part 22 shown in FIGS. 5A to 5G, and the filter material 231 and the thread member 232 of the thread filter 23 are substantially the same as those described with reference to FIGS. 1 to 4D, and thus detailed description thereof is omitted herein. the same as those described with reference to FIGS. 1 to 4D, and thus detailed description thereof is omitted herein.

[0092] As shown in FIGS. 5F and 5G, the aerosol generating article 2 includes a nicotine-containing part 25. The nicotine-containing part 25 includes nicotine obtained by shaping or reconstructing tobacco leaves. Alternatively, the nicotine-containing part 25 includes free base nicotine, nicotine salt or a combination thereof. For example, the nicotine-containing part 25 can be embodied by a crimped sheet impregnated with nicotine. Also, flavoring agents, wetting agents or organic acids (organic base nicotine), nicotine salt or a combination thereof. For example, the nicotine-containing part 25 can be embodied by a crimped sheet impregnated with nicotine. Also, flavoring agents, wetting agents or organic acids (organic acids) sheet impregnated with nicotine. Also, flavoring agents, wetting agents or organic acids (organic Fragrance liquids or other additive substances such as acid) may be included in the curled sheet.

[0093] The curled sheet is also a sheet made of a polymer material. For example, the polymer material , paper, cellulose acetate, lyocell ll), polylactic acid, includes at least one of them. For example, the curled sheet may be a paper sheet that does not generate an odor due to heat even when heated to a high temperature. However, it is not limited thereto.

[0094] Figures 6A to 6D are schematic side cross-sectional views showing examples related to the cooling part of the aerosol generating article.

[0095] Referring to Figures 6A to 6D, examples of the cooling parts 31, 32, 33, 34 are illustrated.

[0096] Referring to Figures 6A to 6C, the cooling parts 31, 32, 33 are made of polylactic acid segments 312, 322, 332 and other segments 311, 321, 331. Here, the other segments 311, 321, 331 can be made of cellulose acetate and / or paper. Also, the other segments 311, 321, 331 may include a hollow, but are not limited thereto.

[0097] Referring to Figure 6D, the cooling part 34 is a tubular structure made of paper and including a hollow inside. For example, the inner surface or the outer surface of the cooling part 34 can be coated with a predetermined substance (for example, , polylactic acid).

[0098] Also, although not shown in FIGS. 1 to 6D, the aerosol generating articles 1 and 2 further include a plug at the front end (i.e., the upstream end) of the aforementioned aerosol generating articles. For example, the plug can be made of cellulose acetate, but is not limited thereto.

[0099] FIGS. 7 and 8 are schematic drawings showing an example in which the aerosol generating article 1 is inserted into the aerosol generating device 100.

[0100] Referring to FIGS. 7 and 8, the aerosol generating device 100 includes a battery 101, a control unit 102, a heater 103, and an atomizer 104. Also, the aerosol generating article 1 can be inserted into the internal space of the aerosol generating device 100.

[0101] The components according to this embodiment are shown in the aerosol generating device 100 illustrated in FIGS. 7 and 8. Therefore, those having ordinary knowledge in the technical field related to this embodiment will be able to understand that other general components are further included in the aerosol generating device 100 in addition to the components illustrated in FIGS. 7 and 8.

[0102] Also, FIGS. 7 and 8 show that the heater 103 is included in the aerosol generating device 100, but the heater 103 can be omitted if necessary.

[0103] FIG. 7 shows that the battery 101, the control unit 102, the atomizer 104, and the heater 103 are arranged in a row. Also, FIG. 8 shows that the atomizer 104 and the heater 103 are arranged in parallel. However, the internal structure of the aerosol generating device 100 is not limited to that shown in FIGS. 7 and 8. That is, the aerosol generating device 1 ​​​​​​​​​​​​ With the design of 00, the arrangement of the battery 101, the control unit 102, the heater 103 and the vaporizer 104 can be changed.

[0104] If the aerosol generating article 1 is inserted into the aerosol generating device 100, the aerosol generating de vice 100 can operate the heater 103 and / or the vaporizer 104 to generate an aerosol from the aerosol generating article 1 and / or the vaporizer 104. The aerosol generated by the heater 103 and / or the vaporizer 104 passes through the aerosol generating article 1 and is transmitted to the user.

[0105] Optionally, even when the aerosol generating article 1 is not inserted into the aerosol generating device 100, the aerosol generating device 100 can heat the heater 103.

[0106] The battery 101 supplies the power used for the operation of the aerosol generating device 100. For example, the battery 101 can supply power so that the heater 103 or the vaporizer 104 is heated, and can supply the power required for the operation of the control unit 102. Also, the battery 101 can supply the power required for the operation of a display, a sensor, a motor, etc. provided in the aerosol generating device 100.

[0107] The control unit 102 generally controls the operation of the aerosol generating device 100. Specifically, the control unit 102 controls not only the battery 101, the heater 103 and the vaporizer 104, but also the operation of other components included in the aerosol generating device 100. Also, the control unit 102 checks the state of each component of the aerosol generating device 100 to confirm that the aerosol generating device 100 is operable. It is possible to determine whether it is in an enabled state or not.

[0108] The control unit 102 includes at least one processor. The processor can be implemented by an array of a large number of logic gates, and can also be implemented by a combination of a general-purpose microprocessor and a memory in which a program executed by the microprocessor is stored. Also, those with ordinary knowledge in the technical field to which this embodiment belongs will be able to understand that it can also be implemented by other forms of hardware. It can be implemented by an array of a large number of logic gates, and can also be implemented by a combination of a general-purpose microprocessor and a memory in which a program executed by the microprocessor is stored. Also, those with ordinary knowledge in the technical field to which this embodiment belongs will be able to understand that it can also be implemented by other forms of hardware. It can be implemented by an array of a large number of logic gates, and can also be implemented by a combination of a general-purpose microprocessor and a memory in which a program executed by the microprocessor is stored. Also, those with ordinary knowledge in the technical field to which this embodiment belongs will be able to understand that it can also be implemented by other forms of hardware. It can be implemented by an array of a large number of logic gates, and can also be implemented by a combination of a general-purpose microprocessor and a memory in which a program executed by the microprocessor is stored. Also, those with ordinary knowledge in the technical field to which this embodiment belongs will be able to understand that it can also be implemented by other forms of hardware. It can be implemented by an array of a large number of logic gates, and can also be implemented by a combination of a general-purpose microprocessor and a memory in which a program executed by the microprocessor is stored. Also, those with ordinary knowledge in the technical field to which this embodiment belongs will be able to understand that it can also be implemented by other forms of hardware.

[0109] The heater 103 can be heated by the power supplied from the battery 101. For example, if a cigarette is inserted into the aerosol generating device 100, the heater 103 is located outside the cigarette. Therefore, the heated heater 103 can raise the temperature of the aerosol-forming substance in the cigarette. The heater 103 can be heated by the power supplied from the battery 101. For example, if a cigarette is inserted into the aerosol generating device 100, the heater 103 is located outside the cigarette. Therefore, the heated heater 103 can raise the temperature of the aerosol-forming substance in the cigarette. The heater 103 can be heated by the power supplied from the battery 101. For example, if a cigarette is inserted into the aerosol generating device 100, the heater 103 is located outside the cigarette. Therefore, the heated heater 103 can raise the temperature of the aerosol-forming substance in the cigarette. The heater 103 can be heated by the power supplied from the battery 101. For example, if a cigarette is inserted into the aerosol generating device 100, the heater 103 is located outside the cigarette. Therefore, the heated heater 103 can raise the temperature of the aerosol-forming substance in the cigarette.

[0110] The heater 103 is also an electric resistance heater. For example, the heater 103 includes a conductive track, and when an electric current flows through the conductive track, the heater 103 can be heated. However, the heater 103 is not limited to the above example, and any device that can be heated to the desired temperature can be applicable without limitation. Here, the desired temperature may be preset in the aerosol generating device 100 or can be set to a desired temperature by the user. The heater 103 is also an electric resistance heater. For example, the heater 103 includes a conductive track, and when an electric current flows through the conductive track, the heater 103 can be heated. However, the heater 103 is not limited to the above example, and any device that can be heated to the desired temperature can be applicable without limitation. Here, the desired temperature may be preset in the aerosol generating device 100 or can be set to a desired temperature by the user. The heater 103 is also an electric resistance heater. For example, the heater 103 includes a conductive track, and when an electric current flows through the conductive track, the heater 103 can be heated. However, the heater 103 is not limited to the above example, and any device that can be heated to the desired temperature can be applicable without limitation. Here, the desired temperature may be preset in the aerosol generating device 100 or can be set to a desired temperature by the user. The heater 103 is also an electric resistance heater. For example, the heater 103 includes a conductive track, and when an electric current flows through the conductive track, the heater 103 can be heated. However, the heater 103 is not limited to the above example, and any device that can be heated to the desired temperature can be applicable without limitation. Here, the desired temperature may be preset in the aerosol generating device 100 or can be set to a desired temperature by the user. The heater 103 is also an electric resistance heater. For example, the heater 103 includes a conductive track, and when an electric current flows through the conductive track, the heater 103 can be heated. However, the heater 103 is not limited to the above example, and any device that can be heated to the desired temperature can be applicable without limitation. Here, the desired temperature may be preset in the aerosol generating device 100 or can be set to a desired temperature by the user.

[0111] On the other hand, as another example, the heater 103 is also an induction heating heater. Specifically, the heater 103 includes a conductive coil for heating the cigarette by induction heating, and the cigarette includes a susceptor that is heated by the induction heating heater. On the other hand, as another example, the heater 103 is also an induction heating heater. Specifically, the heater 103 includes a conductive coil for heating the cigarette by induction heating, and the cigarette includes a susceptor that is heated by the induction heating heater. On the other hand, as another example, the heater 103 is also an induction heating heater. Specifically, the heater 103 includes a conductive coil for heating the cigarette by induction heating, and the cigarette includes a susceptor that is heated by the induction heating heater.

[0112] For example, the heater 103 may include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element, and can heat the inside or outside of the aerosol generating article 1 according to the shape of the heating element. The heater 103 can heat the inside or outside of the aerosol generating article 1 according to the shape of the heating element.

[0113] In addition, a plurality of heaters 103 may be arranged in the aerosol generating device 100. At this time, the plurality of heaters 103 can also be arranged to be inserted into the aerosol generating article 1, and can also be arranged outside the aerosol generating article 1. Among the plurality of heaters 103, some can be arranged to be inserted into the aerosol generating article 1, and the rest can be arranged outside the aerosol generating article 1. In addition, a part of the plurality of heaters 103 can be arranged to be inserted into the aerosol generating article 1, and the rest can be arranged outside the aerosol generating article 1. In addition, the shape of the heater 103 is not limited to the shapes shown in FIGS. 7 and 8, and can also be manufactured in various shapes. In addition, the shape of the heater 103 is not limited to the shapes shown in FIGS. 7 and 8, and can also be manufactured in various shapes.

[0114] The vaporizer 104 heats the liquid composition to generate an aerosol, and the generated aerosol can be transmitted to the user through the aerosol generating article 1. That is, the aerosol generated by the vaporizer 104 moves along the air flow path of the aerosol generating device 100, and the air flow path can be configured such that the aerosol generated by the vaporizer 104 passes through the cigarette and is transmitted to the user. The aerosol generated by the vaporizer 104 moves along the air flow path of the aerosol generating device 100, and the air flow path can be configured such that the aerosol generated by the vaporizer 104 passes through the cigarette and is transmitted to the user.

[0115] For example, the vaporizer 104 may include, but is not limited to, a liquid storage unit, a liquid transfer means, and a heating element. For example, the liquid storage unit, the liquid transfer means, and the heating element may be included in the aerosol generating device 100 as independent modules.

[0116] The liquid storage unit can store the liquid composition. For example, the liquid composition may be a volatile ​​​​It is also a liquid containing a tobacco-containing substance containing a bakho fragrance component and is also a liquid containing a non-tobacco substance . The liquid storage part is manufactured to be detached from / attached to the vaporizer 104 and can be manufactured integrally with the vaporizer 104 .

[0117] For example, the liquid composition contains water, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, or a vitamin mixture. The fragrance includes menthol, peppermint, spearmint oil, and fragrance components of various fruits, etc., but is not limited thereto. The flavoring agent includes components that provide a variety of flavors or tastes to the user. The vitamin mixture is also a mixture in which at least one of vitamin A, vitamin B, vitamin C, and vitamin E is mixed, but is not limited thereto. Also, the liquid composition contains an aerosol-forming agent such as glycerin and propylene glycol . . . . . Also, the liquid composition contains an aerosol-forming agent such as glycerin and propylene glycol .

[0118] The liquid delivery means can deliver the liquid composition in the liquid storage part to the heating element. For example, the liquid delivery means can also be a wick such as cotton fiber, ceramic fiber, glass fiber, porous ceramic, but is not limited thereto . .

[0119] The heating element is an element for heating the liquid composition transmitted by the liquid delivery means . For example, the heating element can also be a metal heating wire, a metal hot plate, a ceramic heater, etc., but is not limited thereto. Also, the heating element is composed of a conductive filament such as a nichrome wire and can be arranged in a structure wound around the liquid delivery means. The heating element is heated by a current supply and transfers heat to the liquid composition in contact with the heating element, and can heat the liquid composition. As a result, an aerosol can be generated . . . .

[0120] For example, the vaporizer 104 is also referred to as a cartomizer or an atomizer, but is not limited thereto.

[0121] On the other hand, the aerosol generating device 100 further includes a general configuration in addition to the battery 101, the control unit 102, the heater 103, and the vaporizer 104. For example, the aerosol generating device 100 includes a display capable of outputting visual information and / or a motor for outputting tactile information. In addition, the aerosol generating device 100 includes at least one sensor (for example, a puff sensing sensor, a temperature sensing sensor, a cigarette insertion sensing sensor, etc.). Further, the aerosol generating device 100 can be manufactured with a structure that allows external air to flow in even when the aerosol generating article 1 is inserted, or internal gas to flow out. Although not shown in FIGS. 7 and 8, the aerosol generating device 100 may form a system together with a separate cradle. For example, the cradle can be used to charge the battery 101 of the aerosol generating device 100. Or, the heater 103 can be heated in a state where the cradle and the aerosol generating device 100 are coupled.

[0122] Inside the aerosol generating device 100, the entire first part can be inserted, and the second part can be exposed to the outside. Or, only a part of the first part can be inserted inside the aerosol generating device 100, and the entire first part and a part of the second part can be inserted. The user can inhale the aerosol with the second part in the mouth. At this time, the aerosol is generated by the external air passing through the first part, and the generated aerosol passes through the second part and reaches the user.

[0123] ​​​​​​​​​​ is transmitted to the mouth.

[0124] As an example, the outside air can flow in through at least one air passage formed in the aerosol generating device 100. For example, the opening and closing of the air passage formed in the aerosol generating device 100 and / or the size of the air passage can be adjusted by the user. Thereby, the atomization amount, smoking feeling, etc. can be adjusted by the user. As another example, the outside air can flow into the inside of the aerosol generating article 1 through at least one hole formed on the surface of the aerosol generating article 1.

[0125] Those having ordinary knowledge in the technical field related to this embodiment can understand that it can be embodied in a modified form without departing from the essential characteristics described above. Therefore, the disclosed method should be considered from an illustrative rather than a limiting perspective. The scope of the present invention is shown not in the foregoing description but in the claims, and all differences within the scope equivalent thereto should be construed as being included in the present invention. ​

Claims

[Claim 1] an aerosol generating unit including an aerosol generating substance; a tobacco filling section disposed at a downstream end of the aerosol generating section; a cooling device disposed at a downstream end of the tobacco filling section and configured to cool the aerosol; Department and a filter member disposed at a downstream end of the cooling section, the filter member having different aerosol flow rates; and a threaded filter comprising a thread member.

Images