Cartridge with venturi flow path

Abstract

A cartridge for use with a vaporizer device according to various embodiments of the subject technology may include a body portion comprising an airflow path. The airflow path may include a first section having a first diameter, a second section having a second diameter, and a third section having a third diameter. The cartridge may further include a heating element coupled to an interior surface of the body portion and located at the second section.

1 . A cartridge for use with a vaporizer device, comprising:
 a body portion comprising an airflow path, wherein the airflow path comprises:
 a first section having a first diameter; 
 a second section having a second diameter; and 
 a third section having a third diameter; and 
   a heating element coupled to an interior surface of the body portion and located at the second section.   
     
     
         2 . The cartridge of  claim 1 , wherein:
 the first diameter is greater than the second diameter;   the second diameter is less than the third diameter; and   the third diameter is substantially equal to the first diameter.   
     
     
         3 . The cartridge of  claim 2 , wherein the second diameter is equal to about one-half the first diameter. 
     
     
         4 . The cartridge of  claim 2 , wherein the second diameter is equal to about one-third the first diameter. 
     
     
         5 . The cartridge of  claim 2 , wherein air is drawn into the airflow path, and wherein:
 the air flows through the first section to form a first pressure at the first section;   the air flows through the second section to form a second pressure at the third section; and   the first pressure is greater than the second pressure.   
     
     
         6 . The cartridge of  claim 5 , further comprising a reservoir in fluid communication with the heating element and configured to hold a vaporizable liquid, wherein the vaporizable liquid flows from the reservoir to the heating element at a flow rate. 
     
     
         7 . The cartridge of  claim 6 , wherein the flow rate is proportional to the difference between the first pressure and the second pressure. 
     
     
         8 . A method for increasing a flow rate of a vaporizable liquid in a cartridge, comprising:
 drawing air into an airflow path of the cartridge to form a first pressure and a second pressure within the airflow path; and   increasing the flow rate in response to forming the first pressure and the second pressure.   
     
     
         9 . The method of  claim 8 , wherein the airflow path comprises:
 a first section having a first diameter;   a second section having a second diameter; and   a third section having a third diameter.   
     
     
         10 . The method of  claim 9 , wherein:
 the first diameter is greater than the second diameter;   the second diameter is less than the third diameter; and   the third diameter is substantially equal to the first diameter.   
     
     
         11 . The method of  claim 10 , wherein the second diameter is equal to about one-half the first diameter. 
     
     
         12 . The method of  claim 10 , wherein the second diameter is equal to about one-third the first diameter. 
     
     
         13 . The method of  claim 10 , wherein:
 the air flows through the first section to form the first pressure at the first section;   the air flows through the second section to form the second pressure at the third section; and   the first pressure is greater than the second pressure.   
     
     
         14 . The method of  claim 13 , wherein the vaporizable liquid flows from a reservoir disposed within the cartridge to a heating element disposed within the airflow path at a flow rate. 
     
     
         15 . The method of  claim 14 , wherein the flow rate is proportional to the difference between the first pressure and the second pressure.