E-LIQUID DELIVERY SYSTEM FOR PERSONAL VAPORIZERS
FIG4 is a cross-sectional view of a personal vaporizer according to an embodiment of the invention
There are many possible configurations of personal vaporizers that could be used to implement the preheating methodology of the invention. FIG4 illustrates an illustrative embodiment of a personal vaporizer 300 that incorporates this methodology. The vaporizer 300 comprises a cylindrical casing 320 having a distal end 321 and a proximal end 322. At its proximal end 322, the casing 320 is formed into a mouthpiece 324 having a passage 326. The casing 320 also has one or more air holes 328 to allow air to flow from the atmosphere into a vaporization chamber 330 which may be separated from the exit chamber 327 by a filter 370. The personal vaporizer 300 further comprises a fluid reservoir 340 in which is disposed a vaporizable liquid 342. The fluid reservoir 340 may be configured as a simple tank or may be or include a housed or unhoused adsorptive or absorptive material or structure that retains the vaporizable liquid 342. In either case, the reservoir 340 has a proximal reservoir exit port 344. A heating element 360 is positioned within the vaporization chamber 330. The personal vaporizer 300 also comprises a battery 380 and a control unit 390.
cross-sectional view
350
fluid transport arrangement fluid transport structure
326
passage
324
mouthpiece
355
chamber
330
vaporization chamber
322
proximal end
12
first liquid flow duct.Clause
352
conduit
357
exit port
344
proximal reservoir exit port
354
PZE pump
360
heating element
390
control unit
380
battery
300
vaporizer
356
entrance port
392
pump controller
340
reservoir
327
exit chamber
351
first fluid conduit
328
air holes
342
liquid
353
nozzle end
370
filter
320
casing
359
elements
['1. A personal vaporizer comprising: an annular main body defining a main body interior; a vaporization chamber within the main body interior; a vaporization heating element disposed within the vaporization chamber, the vaporization heating element having a vaporization heating surface; an air flow passage from one or more air intake openings in the case wall to the vaporization chamber; a vaporization mixture flow passage extending from the vaporization chamber to an exit port; a liquid reservoir configured for storage of a vaporizable liquid and having a reservoir exit port; a liquid transport arrangement for transporting vaporizable liquid from the liquid reservoir to the vaporization chamber, the liquid transport arrangement comprising a first liquid flow duct extending from the reservoir exit port, and a piezoelectric pump operatively connected to the first liquid flow duct for drawing the vaporizable liquid from the reservoir, through the liquid flow duct, and into the vaporization chamber through a nozzle positioned adjacent or in contact with the vaporization heating element so that liquid exiting the nozzle is heated by the vaporization heating surface.', '2. A personal vaporizer according to claim 1 further comprising: a pump controller in electrical communication with the piezoelectric pump and configured for controlling the piezoelectric pump so as to maintain a desired flow rate of liquid through the nozzle.']