Aerosol delivery device including a bubble jet head and related method
Aerosol delivery devices including mechanisms configured to deliver an aerosol precursor composition from a reservoir to an atomizer including a vaporization heating element to produce a vapor are disclosed. For example, a bubble jet head may be configured to dispense the aerosol precursor composition to the atomizer. The bubble jet head may be fixedly coupled to the atomizer. The bubble jet head may include a precursor inlet, an ejection heating element, and a precursor nozzle. The atomizer may include a vaporization heating element.
1. An aerosol delivery device, comprising:
a reservoir at least partially filled with an aerosol precursor composition;
a bubble jet head comprising a precursor inlet and a precursor nozzle in fluid communication with the reservoir, the bubble jet head being configured to dispense the aerosol precursor composition from the reservoir;
an atomizer comprising an aerosol outlet and configured to heat the aerosol precursor composition dispensed by the bubble jet head to produce an aerosol;
a housing arranged within the aerosol delivery device and defining at least one of the precursor inlets, the precursor nozzle, and the aerosol outlet,
wherein the aerosol precursor composition is initially prevented from traveling to at least one of the atomizer and the bubble jet head, and wherein, in response to an input to the aerosol deliver device, the aerosol delivery device is configured to permit traveling of the aerosol precursor composition toward the atomizer and/or bubble jet head, and
wherein the pressure within the reservoir is negative, wherein the negative pressure acts to resist passive travel of the aerosol precursor composition out of the reservoir.
2. The aerosol delivery device of claim 1 , wherein the bubble jet head comprises a precursor nozzle, and wherein the precursor nozzle is sized so as to resist travel therethrough of the aerosol precursor composition such that the aerosol precursor composition is initially prevented from traveling to the atomizer.
3. The aerosol delivery device of claim 1 , wherein the bubble jet head comprises a plurality of precursor nozzles, and wherein the plurality of precursor nozzles are sized so as to resist travel therethrough of the aerosol precursor composition such that the aerosol precursor composition is initially prevented from traveling to the atomizer.
4. The aerosol delivery device of claim 1 , wherein the negative pressure is applied to the reservoir prior to sealing the reservoir shut so as to provide the negative pressure within the reservoir.
5. The aerosol delivery device of claim 1 , further comprising a flow sensor, and wherein the input is an input indicative of a user's puff detected by the flow sensor.
6. The aerosol delivery device of claim 1 , wherein, in response to the input, the aerosol delivery device is configured to eject the aerosol precursor composition towards the atomizer.
7. The aerosol delivery device of claim 6 , wherein the bubble jet head further comprises one or more ejection heating elements, and in response to the input, the aerosol delivery device is configured to supply current to the one or more ejection heating elements.
8. The aerosol delivery device of claim 1 , wherein the bubble jet head is configured to eject the aerosol precursor composition substantially perpendicularly to a heating surface of the atomizer.
9. The aerosol delivery device of claim 1 , wherein a heating surface of the atomizer is non-planar.
10. The aerosol delivery device of claim 1 , wherein a heating surface of the atomizer is textured.
11. The aerosol delivery device of claim 1 , wherein the reservoir comprises a reservoir substrate configured to direct the aerosol precursor composition to the bubble jet head.
12. The aerosol delivery device of claim 1 , wherein the bubble jet head is coupled to a distal end of the reservoir.
13. The aerosol delivery device of claim 1 , wherein the bubble jet head is coupled to a lateral side of the reservoir.
14. The aerosol delivery device of claim 1 , wherein the bubble jet head and the atomizer are positioned between the reservoir and a mouthpiece.
15. The aerosol delivery device of claim 1 , wherein the reservoir is positioned between a mouthpiece and the atomizer and the bubble jet head.
16. The aerosol delivery device of claim 1 , wherein the bubble jet head comprises an ejection heating element and the atomizer comprises a vaporization heating element.
17. The aerosol delivery device of claim 16 , wherein a thermal mass of the ejection heating element is less than a thermal mass of the vaporization heating element.
18. The aerosol delivery device of claim 1 , wherein an area of the aerosol outlet is greater than an area of the precursor nozzle.
19. The aerosol delivery device of claim 1 , wherein the ejection heating element, the precursor nozzle, and the vaporization heating element are axially aligned.