Holy grail of cart design

[Vapinginjapan]

It's come to my attention that the stuffing really does take up a large volume of a cart, and e-liquid in mouth situations are messy, undesirable, etc...

I think i've got an idea for a design that might work.

First of all, go with a SEALED stuffingless resivour with a tiny air hole to allow air to get in, but valved, so air/liquid can't get out. Then have a syringe refill port.

Then, use this micropump
http://www.takasago-elec.co.jp/images/eo_pumps/rpseries.jpg

Link to main site here
Solenoid Valve Manufacturer, Takasago - New Products


(The power draw is small, about 100mw, and while this may seem alot for a 1 watt hour battery, they pump 190 microliters/minute, thus they could drain a 5ml resivour with only 50mwH of power. This is about 1/12th the energy contained in your standard 200mAH 3.7v supermini battery.)


To pump fluid into the steel wool mesh at a set rate. Basically, every X seconds of atomizer runtime, perhaps 25 microliters would be dispensed into the steel wool mesh.

This would totally eliminate the liquid in mouth issues with hard drags.
As you can see from both the photos, and the video on the site, the size is absolutley perfect for an e-cig cart. Almost TOO perfect. Size is 6x11mm for the mid range one.

Only hitch is that they seem to need 12v to operate well. Perhaps a tiny DC to DC transformer? If you only need 4-5mA, it shouldn't be too bulky.

This would allow a significantly larger fluid resivour for all types of penstyles, and even superminis, because even with the increased size of the pump, the fluid resivour could be compacted due to the stuffing no longer being an issue.

It would also be nice to have a sight gauge on the cart.

In my opinion, this would be THE holy grail of cart tech.

 

[MrKrinkle]

I like it I like it alot!!!

 

[KeithPatrick]

I'm having trouble visualizing this. was the first picture what the cart would look like? Why are there three pieces?

 

[morphector]

Great idea!

as for the 12v

･ Flow rate control by drive voltage or drive frequency possible.
So you would have to try it at 3.7v if they can pump a bit of liquid, if that's the case then you wouldn't need any converter.

There's even a chance that at 3.7v it could be the right voltage that you could run it at the same time as the atomiser,wich would equal as always having a full cart ​

 

[DaDuke]

What about not trying to keep a constant flow rate by adding an additional switch (to a mod box) that simply switches it on just long enough to pump a xouple drops worth into the atty mesh?

That should also eliminate any large power draw from the batts since it would only draw power for maybe a total of 5 secs per hour.

Ps- what about instead of a valved cart you make it so it has a plunger-like disk within it at the bottom. Behind the plunger (and the seal) is the air hole to allow the plunger to move freely. On the other end of the cart you have a small syringe port for refilling. As you use it up the plunger would slowly move until fully depressed and empty. When you refill with a syringe through the port the juice would force the plunger back to the bottom.

The port is also how it is easily attached and detached from the mod box. The mod box would have the pump with a small hose mounted to a short syringe tip. You would simply slide the cart onto the mods syringe and then snap it down on a retaining clip.

 

[Vapinginjapan]

Hey guys.

I was forced to rule out this idea. I was shocked when the company actually called me to answer any questions I had. Man, now that's SOME service, as it was only a question I had placed through their questionare system on their website.

Sadly, the cost is almost $500 for the electro-osmotic.

I'm sure there has to be a cheaper way to get the pump system working..

A decidedly lower tech idea would be to have a straw directly linked with the wicking in the cart, with straw also running into a second bottle relatively wet with e-liquid (overfill levels) also filled with polyfill that could just snap on as a colar to the cartridge housing. Wouldn't the wicking theoretically balance the e-liquid density between the cart and the external 'Drop tank'?

 

[Vapinginjapan]

Haha, now I've got ideas in my head for a very small wind vane or turbine that would be powered off the sucking motion of the e-cigarette to slowly drip liquid onto the mesh. I wonder if that one is doable..