Air intake assembly

Patent metadata

Field	Value
Publication number	US-11311049-B2
Application number	US-201816196866-A
Country	US
Kind code	B2
Filing date	Nov 20, 2018
Priority date	Nov 20, 2018
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

A vapor generator assembly for an e-vaping device may include a reservoir configured to hold a pre-vapor formulation, a vaporizer assembly configured to heat pre-vapor formulation drawn from the reservoir to form a vapor, and an air intake assembly configured to direct ambient air into the vaporizer assembly. The air intake assembly may at least partially define an air inlet that extends at least partially around an outer surface of the vapor generator assembly. The air inlet may be an arcuate air inlet or an annular air inlet. The air intake assembly may at least partially define an inlet channel extending from the air inlet into an interior of the vapor generator assembly to at least partially establish fluid communication between the arcuate air inlet and the vaporizer assembly. The inlet channel may extend coaxially in relation to a longitudinal axis of the vapor generator assembly.

First claim

We claim:

1. A vapor generator assembly for an e-vaping device, the vapor generator assembly comprising:
a reservoir configured to hold a pre-vapor formulation;
a vaporizer assembly configured to heat pre-vapor formulation drawn from the reservoir to form a vapor;
an airflow conduit that is in fluid communication with the vaporizer assembly; and
an air intake assembly configured to direct ambient air into the vaporizer assembly via the airflow conduit, the air intake assembly at least partially defining
an arcuate air inlet that extends at least partially around an outer surface of the vapor generator assembly, and
a flow control structure that is configured to be rotated around a longitudinal axis of the vapor generator assembly to adjustably control a cross-sectional flow area of fluid communication between the arcuate air inlet and the vaporizer assembly via the airflow conduit,

wherein the air intake assembly includes
a first structural element that defines an adjustment ring inner structure of the flow control structure through which a plurality of orifices having different sizes extend, the adjustment ring inner structure surrounding at least a portion of the vaporizer assembly, the adjustment ring inner structure configured to rotate around the longitudinal axis to adjustably align a selected orifice of the plurality of orifices with the airflow conduit to adjustably control the cross-sectional flow area of fluid communication between the arcuate air inlet and the vaporizer assembly via the airflow conduit,
a second structural element that defines
an outer surface of the air intake assembly that at least partially defines the arcuate air inlet,
an outer surface of the flow control structure that is exposed to an exterior of the vapor generator assembly and is configured to be physically manipulated from the exterior of the vapor generator assembly to cause the intake air assembly to rotate around the longitudinal axis, and
a first inlet channel extending from the arcuate air inlet at the outer surface of the air intake assembly to an opposite inner surface of the second structural element, the first inlet channel extending paraxially in relation to the longitudinal axis of the vapor generator assembly,

wherein an outer surface of the first structural element and the opposite inner surface of the second structural element at least partially define an annular second inlet channel between the first inlet channel and the plurality of orifices, the annular second inlet channel surrounding the adjustment ring inner structure,
wherein the air intake assembly is configured to establish adjustable fluid communication between the arcuate air inlet and the airflow conduit via the first inlet channel, the annular second inlet channel, and the selected orifice of the plurality of orifices.

2. The vapor generator assembly of claim 1 , wherein the arcuate air inlet is at least partially defined by an arcuate gap between the air intake assembly and an outer housing of the vapor generator assembly.

3. The vapor generator assembly of claim 1 , wherein the arcuate air inlet is an annular air inlet that extends around an entirety of the outer surface of the vapor generator assembly.

4. A vapor generator assembly for an e-vaping device, the vapor generator assembly comprising:
a reservoir configured to hold a pre-vapor formulation;
a vaporizer assembly configured to heat pre-vapor formulation drawn from the reservoir to form a vapor;
an airflow conduit that is in fluid communication with the vaporizer assembly; and
an air intake assembly configured to direct ambient air into the vaporizer assembly via the airflow conduit, the air intake assembly at least partially defining
an annular air inlet that extends around an entirety of an outer surface of the vapor generator assembly, and
a flow control structure that is configured to be rotated around a longitudinal axis of the vapor generator assembly to adjustably control a cross-sectional flow area of fluid communication between the annular air inlet and the vaporizer assembly via the airflow conduit,

wherein the air intake assembly includes
a first structural element that defines an adjustment ring inner structure of the flow control structure through which a plurality of orifices having different sizes extend, the adjustment ring inner structure surrounding at least a portion of the vaporizer assembly, the adjustment ring inner structure configured to rotate around the longitudinal axis to adjustably align a selected orifice of the plurality of orifices with the airflow conduit to adjustably control the cross-sectional flow area of fluid communication between the annular air inlet and the vaporizer assembly via the airflow conduit,
a second structural element that defines
an outer surface of the air intake assembly that at least partially defines the arcuate air inlet,
an outer surface of the flow control structure that is exposed to an exterior of the vapor generator assembly and is configured to be physically manipulated from the exterior of the vapor generator assembly to cause the intake air assembly to rotate around the longitudinal axis, and
a first inlet channel extending from the arcuate air inlet at the outer surface of the air intake assembly to an opposite inner surface of the second structural element, the first inlet channel extending paraxially in relation to the longitudinal axis of the vapor generator assembly,

wherein an outer surface of the first structural element and the opposite inner surface of the second structural element at least partially define an annular second inlet channel between the first inlet channel and the plurality of orifices, the annular second inlet channel surrounding the adjustment ring inner structure,
wherein the air intake assembly is configured to establish adjustable fluid communication between the annular air inlet and the airflow conduit via the first inlet channel, the annular second inlet channel, and the selected orifice of the plurality of orifices.

5. The vapor generator assembly of claim 4 , wherein the annular air inlet is at least partially defined by an annular gap between the air intake assembly and an outer housing of the vapor generator assembly.

6. An e-vaping device, comprising:
the vaporizer generator assembly of claim 1 ; and
a power supply assembly detachably coupled to the vaporizer generator assembly, the power supply assembly configured to supply electrical power to the vaporizer assembly,
wherein the power supply assembly includes an outer housing, and at least one inner surface of the outer housing at least partially defines an outer annular boundary of the annular second inlet channel, such that the annular second inlet channel is at least partially defined within an interior of the e-vaping device by respective surfaces of the first and second structural elements of the air intake assembly and the outer housing of the power supply assembly.

7. The e-vaping device of claim 6 , wherein the arcuate air inlet is at least partially defined by an arcuate gap between the air intake assembly and an outer housing of the e-vaping device.

8. The e-vaping device of claim 6 , wherein the arcuate air inlet is an annular air inlet that extends around an entirety of the outer surface of the e-vaping device.

9. The e-vaping device of claim 6 , wherein the power supply assembly includes a rechargeable battery.

10. An e-vaping device, comprising:
the vaporizer generator assembly of claim 4 ; and
a power supply assembly detachably coupled to the vaporizer generator assembly, the power supply assembly configured to supply electrical power to the vaporizer assembly,
wherein the power supply

Assignees

• Altria Client Services Llc

Inventors

• Hawes Eric
• Lau Raymond W
• Dahl Mik
• Jarantilla Jon
• Salvador Galen
• Montalvan Jose Jesus Paolo
• Kok Jeroen

Classifications

• A24F40/50

  Control or monitoring · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• A24F40/485 Primary

  Valves; Apertures · CPC title

• A24F40/42

  Cartridges or containers for inhalable precursors · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title