FLAVOR VORTEX DEVICE
The present disclosure relates to devices and methods for controlling particle size, flow direction, and flow rate of an aerosol in an electronic smoking device. A flow discharge device 100 for an electronic smoking device 800 comprises a body and a through-hole 140. The body is configured for assembly with a housing 810 of an electronic smoking device 800, and has a first surface 110 and a second surface 130. The through-hole 140 extends from the first surface 110 to the second surface 130, and is shaped to adjust characteristics of flow between the first surface 110 and the second surface 130. In one particular embodiment, the through-hole 140 is shaped as a nozzle having a throat region 190 and a diverging region 180 downstream of the throat region 190.
a. Field
The present disclosure relates to a device and a method for controlling particle size in aerosol and for controlling the flow direction and flow rate of aerosol.
b. Background Art
An aerosol is defined as a suspension of solid or liquid particles in a gas. In the case of electronic cigarettes, nebulizers, personal vaporizers, and the like, aerosol includes both the particles and the suspending gas, such as air. Particle size may be described either in terms of the diameter of the particle or the particle size distribution for a given sample.
Electronic cigarettes, also known as e-cigarettes (eCigs), are electronic inhalers that vaporize or atomize a liquid solution into an aerosol mist that may then be delivered to a user. A typical eCig has a mouthpiece, a battery, a liquid storing area, an atomizer, and a liquid solution. The mouthpiece in conventional eCigs tends to be a cylindrical structure with a pin-hole opening in the center to deliver aerosol from the eCig to the user. The pin-hole opening tends to be an ineffective and inefficient delivery mechanism, since a significant portion of the aerosol delivered to the user is delivered at a rate and a particle size that results in a significant portion of the aerosol being directed and applied to the user's throat, thereby resulting in waste and an increased need to deliver larger amounts of aerosol to the user.
BRIEF SUMMARYThe present disclosure relates to a device and a method for effectively and efficiently controlling particle size in an aerosol. The present disclosure also relates to a device and a method for effectively and efficiently controlling flow direction and flow rate of an aerosol to enhance flavor, throat-effect, and delivery of the aerosol to a user.
In one embodiment, a flow discharge device for an electronic smoking device comprises a body and a through-hole. The body is configured for assembly with a housing of an electronic smoking device, and has a first surface and a second surface. The through-hole extends from the first surface to the second surface, and is shaped to adjust characteristics of flow between the first surface and the second surface.
In another embodiment, an electronic cigarette comprises an elongate cylindrical housing, a battery and a liquid storing area disposed in the housing, an atomizer and a mouthpiece. The atomizer is powered by the battery and configured to receive a liquid from the liquid storing area in order to generate an aerosol. The mouthpiece is connected to an end of the elongate cylindrical housing and has a nozzle disposed to receive aerosol drawn from the atomizer. The nozzle has a throat region and a diverging region downstream of the throat region.
In another embodiment, a method for controlling aerosol discharge in an electronic smoking device comprises drawing air into an electronic smoking device, generating an aerosol using the air and an atomizer disposed within the electronic smoking device, drawing the aerosol into a shaped passage through a mouthpiece of the electronic smoking device, and adjusting characteristics of the aerosol with the shaped passage as the aerosol passes through the mouthpiece.
Referring to
Referring to
As seen in
Through-hole 240 may have a smaller diameter at an exit end of exit region 280 (i.e., in first planar surface 210) than at an inlet end of inlet region 270 (i.e., in second planar surface 250) of nozzle device 200. Exit region 280 may have a height t2 that is greater than the height t1 of throat region 290, which in turn may be greater than the height t3 of inlet region 270. The walls of inlet region 270 may be curved or shaped, such as in the shape of a tangential curve or another specific curve-type. The phrase “tangential curve” as used throughout this description is referring to a pair of tangential curves that are slid apart to form a nozzle—or a pair of opposing curves that if slid together would be tangent. In one embodiment, the diameter (inlet region inlet diameter) of the inlet opening in the surface 250 may be in the range of 70% to 95% of the diameter of annular portion 230. It is noted that the inlet diameter may be close to (or at) 100% of the diameter of annular portion 230, or less than 70% of the diameter of annular portion 230. The diameter of the outlet of inlet region 270 (inlet region outlet diameter) may be equivalent to the diameter of the inlet of throat region 290 (throat region inlet diameter).
The walls of throat region 290 may form a substantially cylindrical shape, wherein the throat region inlet diameter d may be substantially the same as the diameter of the outlet of throat region 290 (throat region outlet diameter). The throat region outlet diameter d may be substantially the same as the diameter of the inlet of exit region 280 (exit region inlet diameter). The walls of exit region 280 may be formed in a substantially cone-like (or funnel-like) shape, with the diameter of the outlet of exit region 280 (outer region outlet diameter) being significantly greater than the exit region inlet diameter. For example, the walls of exit region 280 may form an exit region angle α of about 30°+/−10°. In other embodiments of a nozzle device, the inlet region may have cone-like straight walls, and the exit region may have curved walls.
According to an aspect of the disclosure, the nozzle device may have the following ranges of dimensions:
t1: from about 0.75 to about 3.0 mm;
t2: from about 1.0 to about 4.0 mm;
t3: from about 0.75 to about 2.0 mm; and
d: from about 1.0 to about 3.0 mm.
According to one aspect of the disclosure, it was found that the nozzle device improved performance at about t2=1.5 mm.
In one example, the nozzle dimension may be expressed by the following equations:
t2/d>0.5, where the nozzle may begin to work well at t2/d=about 0.75; and
t1/d=>0.325, where about 0.75 seems to work well.
As will be discussed with reference to
Slow moving flow is modeled with lighter hatched regions, while fast moving flow is modeled with heavier hatched regions. Specifically, as shown in
Liquid area separator 812 and spacer 814 facilitate organizing of other components in device 800. Heater tube 816 is mounted on liquid area separator 812. Heater wick 818 is fluidly connected to batting 804A and 804B through heater tube 816 and connected to heater subassembly 802. Inner batting 804A is wrapped around heater tube 816, heater subassembly 802 and heater wick 818. Outer batting 804B is wrapped around inner bating 804A and is itself wrapped in tube 820. Spacer 814 separates battery 806 to be brought into engagement with liquid area separator 812 and sensor and processor subassembly 808. Lens 822 is mounted to housing 810 adjacent sensor and processor subassembly 808. Inlet 824 allows air to enter housing 810.
As seen in
With specific reference to
Heater subassembly 802 includes a coil that is wrapped around heater wick 818 and electrically coupled to battery 806 via sensor and processor subassembly 808, which may comprise, for example, a processor, transistor, and sensor. As such, wires (not shown) form a circuit between battery 806 and heater subassembly 302, which is controlled by sensor and processor subassembly 808. Sensor and processor subassembly 808 includes a visual indicator, such as a light emitting diode (LED), that is activated when sensor and processor subassembly 808 is tripped or otherwise activated. Lens 822 is at least partially translucent and is positioned next to the indicator to allow a user of device 800 to see when sensor and processor subassembly 808 and, hence, heater subassembly 802 is active. In one embodiment, sensor and processor subassembly 808 may comprise a pressure activated sensor that detects the presence of flow of air into housing 810.
Liquid area separator 812 includes an interior axial passageway to allow airflow from one side of support 812 to the other along the axis of device 800. Spacer 814 also includes an interior axial passageway that allows airflow from one side of spacer 814 to the other along the axis of device 800. Spacer 814 further includes side radial porting to allow airflow from the circumference of spacer 814 into the interior, such as air from inlet 824 (
In action, a user of device 800 inhales at nozzle device 100, which causes air to be drawn into inlet 824. This produces a pressure drop at sensor and processor subassembly 808. Airflow from inlet 824 flows radially into spacer 814, axially through liquid area separator 812 and then into heater tube 816 and past heater subassembly 802. All of, or substantially all of, the air that enters device 800 exits at nozzle device 100.
Flow of air detected by sensor and processor subassembly 808 causes the indicator and heater subassembly 802 to activate. Activation of heater subassembly 802 causes the coil to heat up, thereby causing liquid in contact with the coil at heater wick 818 to vaporize into the flow of air from inlet 824. Vaporized liquid and airflow form an aerosol that travels through the through-hole of nozzle device 100 where it is influenced to provide a desired user experience, as described throughout the present disclosure and particularly with reference to
The left diagram shows plot 910, which includes peak regions 912 and 914. The right diagram shows plot 916, which includes peak region 918. Each of plots 910 and 916 refer to a plurality of overlapping curves, respectively, that illustrate multiple data sets. The base of plot 910 is approximately as wide as the base of plot 916, indicating that the particle size has approximately the same range in each diagram. Also, peak 912 and peak 918 are located around the same particle size, indicating that each plot includes a majority of particles having the same diameter. However, peak 912 is much greater in magnitude than peak 918 of plot 910 (diagrams are not drawn to same scale), indicating that plot 910 includes many more particles at the same particle size. Additionally, peak 914 of plot 910 is much greater in magnitude at that particular particle size as compared to plot 916.
The pattern in first substantially planar surface 1003 comprises depressed portions (e.g., trenches) 1004 and raised portions (e.g., protrusions) 1006. Depressed portions 1004 are recessed into substantially planar surface 1003 a small amount such that the pattern is perceptible from both a visual and tactile perspective. Specifically, depressed portions 1004 have a depth giving rise to a three-dimensional pattern that can be felt with a finger of a user. Additionally, raised portions 1006 can be felt with the tongue of a user when electronic smoking device 1000 and nozzle device 1001 are brought to the mouth of a user.
With specific reference to
Any of the patterns of
The plurality of through-holes 1810, while not providing the same sheer force control of the hourglass-like shape, have the benefit of controlling the flow rate by virtue of their increased wall surface area relative to the surface area the holes create on planar surface 1830. This increased surface area creates a boundary layer effect, thus limiting the speed of the flow.
The disclosure and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments and examples that are described and/or illustrated in the accompanying drawings and detailed in the description. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale, and features of one embodiment may be employed with other embodiments as the skilled artisan would recognize, even if not explicitly stated herein. Descriptions of well-known components and processing techniques may be omitted so as to not unnecessarily obscure the embodiments of the disclosure. The examples used herein are intended merely to facilitate an understanding of ways in which the disclosure may be practiced and to further enable those of skill in the art to practice the embodiments of the disclosure. Accordingly, the examples and embodiments herein should not be construed as limiting the scope of the disclosure. Moreover, it is noted that like reference numerals represent similar parts throughout the several views of the drawings.
The terms “including,” “comprising” and variations thereof, as used in this disclosure, mean “including, but not limited to,” unless expressly specified otherwise.
The terms “a,” “an,” and “the,” as used in this disclosure, means “one or more,” unless expressly specified otherwise.
Devices that are in communication with each other need not be in continuous communication with each other, unless expressly specified otherwise. In addition, devices that are in communication with each other may communicate directly or indirectly through one or more intermediaries.
Although process steps, method steps, algorithms, or the like, may be described in a sequential order, such processes, methods and algorithms may be configured to work in alternate orders. In other words, any sequence or order of steps that may be described does not necessarily indicate a requirement that the steps be performed in that order. The steps of the processes, methods or algorithms described herein may be performed in any order practical. Further, some steps may be performed simultaneously.
When a single device or article is described herein, it will be readily apparent that more than one device or article may be used in place of a single device or article. Similarly, where more than one device or article is described herein, it will be readily apparent that a single device or article may be used in place of the more than one device or article. The functionality or the features of a device may be alternatively embodied by one or more other devices which are not explicitly described as having such functionality or features.
Claims
1. A flow discharge device for an electronic smoking device, the flow discharge device comprising the following:
- a body configured for assembly with a housing of an electronic smoking device, the body having a first surface and a second surface; and
- a through-hole extending from the first surface to the second surface, the through-hole being shaped to adjust characteristics of flow between the first surface and the second surface.
2. The flow discharge device of claim 1, wherein the body comprises a mouthpiece of an electronic cigarette.
3. The flow discharge device of claim 1, wherein the through-hole comprises the following:
- an exit located in the first surface;
- an inlet located in the second surface, wherein the second surface is positioned on the body for insertion into the electronic smoking device; and
- a throat positioned between the exit and inlet.
4. The flow discharge device of claim 3, wherein the through-hole has an hourglass-like shape.
5. The flow discharge device of claim 4, wherein the inlet has a larger diameter than that of the exit, and the throat has a smaller diameter than those of the exit and inlet.
6. The flow discharge device of claim 5, wherein the throat has a diameter in the range of about 1.0 mm to about 3.0 mm.
7. The flow discharge device of claim 4, wherein:
- an inlet region of the through-hole between the inlet and the throat has a curved shape;
- an exit region of the through-hole between the throat and the exit has a cone shape; and
- a throat region between the inlet and exit regions has a cylindrical shape.
8. The flow discharge device of claim 4, wherein:
- an inlet region of the through-hole between the inlet and the throat has a first length;
- an exit region of the through-hole between the throat and the exit has a second length; and
- a throat region between the inlet and exit regions has a third length;
- wherein the second length is longer than the third length, and the third length is longer than the first length.
9. The flow discharge device of claim 8, wherein:
- the first length is in the range from about 0.75 mm to about 2.0 mm;
- the second length is in the range from about 1.0 mm to about 4.0 mm; and
- the third length is in a range from about 0.75 mm to about 3.0 mm.
10. The flow discharge device of claim 4, wherein:
- an inlet region of the through-hole between the inlet and the throat is shaped to accelerate flow velocity; and
- an exit region of the through-hole between the throat and the exit is shaped to decelerate flow velocity.
11. The flow discharge device of claim 3, wherein the through-hole comprises a cylindrical throat region and a diverging exit region.
12. The flow discharge device of claim 11, wherein the diverging exit region comprises a conical section having an exit angle of fifteen degrees or thirty degrees.
13. The flow discharge device of claim 1, wherein the first surface includes a pattern indicative of the through-hole shape.
14. The flow discharge device of claim 13, wherein the pattern has a depth into the first surface.
15. The flow discharge device of claim 1, wherein the body further includes a plurality of ribs extending from the first surface to the second surface along a length of the through-hole.
16. The flow discharge device of claim 1, wherein the body includes a cylindrically-shaped wall between the first and second surfaces.
17. The flow discharge device of claim 1, further comprising a plurality of through-holes extending from the first surface to the second surface, the plurality of through-holes collectively being shaped to adjust characteristics of flow between the first surface and the second surface.
18. The flow discharge device of claim 17, wherein the body further includes a protrusion positioned to direct flow toward at least one of the plurality of through-holes.
19. An electronic cigarette comprising the following:
- an elongate cylindrical housing;
- a battery disposed in the housing;
- a liquid storing area disposed in the housing;
- an atomizer powered by the battery and configured to receive a liquid from the liquid storing area in order to generate an aerosol; and
- a mouthpiece connected to an end of the elongate cylindrical housing and having a nozzle disposed to receive aerosol drawn from the atomizer, the nozzle having a throat region and a diverging region downstream of the throat region.
20. The electronic cigarette of claim 19, wherein the nozzle includes an inlet opening located within the housing, and an exit opening located outside of the housing.
21. The electronic cigarette of claim 19, wherein the nozzle includes a converging inlet section.
22. The electronic cigarette of claim 19, wherein the mouthpiece includes a three-dimensional pattern visible from outside of the electronic cigarette when assembled with the elongate cylindrical housing.
23. The electronic cigarette of claim 19, wherein the mouthpiece includes a plurality of through-holes.
24. The electronic cigarette of claim 19, wherein the nozzle has a conical exit region with an exit angle of fifteen degrees or thirty degrees.
25. A method for controlling aerosol discharge in an electronic smoking device, the method comprising the following:
- drawing air into an electronic smoking device;
- generating an aerosol using the air and an atomizer disposed within the electronic smoking device;
- drawing the aerosol into a shaped passage through a mouthpiece of the electronic smoking device; and
- adjusting characteristics of the aerosol with the shaped passage as the aerosol passes through the mouthpiece.
26. The method of claim 25, wherein adjusting characteristics of the aerosol comprises controlling flow velocity of the aerosol.
27. The method of claim 25, wherein adjusting characteristics of the aerosol comprises controlling flow direction of the aerosol.
28. The method of claim 25, wherein adjusting characteristics of the aerosol comprises controlling uniformity in particle size of the aerosol.
29. The method of claim 25, wherein adjusting characteristics of the aerosol comprises the following:
- accelerating flow of the aerosol in an inlet region of the shaped; and
- decelerating the flow of the aerosol in an exit region of the shaped passage.
30. The method of claim 29, wherein adjusting characteristics of the aerosol comprises passing the aerosol through a shaped passage having an hourglass-like shape.
31. The method of claim 25, wherein adjusting characteristics of the aerosol comprises decelerating the flow of the aerosol in an exit region of the shaped passage.
Type: Application
Filed: May 9, 2014
Publication Date: Mar 24, 2016
Inventors: Ramon ALARCON (Los Gatos, CA), Dennis RASMUSSEN (Campbell, CA), Steven E. BROWN (Oak Ridge, NC)
Application Number: 14/890,400