Electric micro or nano pumps for juice feed mods!

[Mr.Mad]

Piezoelectric micro-pump TAKASAGO ELECTRIC
Small-sized, lightweight and slim. The weight of the SDMP302/306 is approximately 4 g.

･ Supply of microscopic fluid quantities possible.
･ No metal used for parts in contact with fluid.
･ Low noise and low power consumption.
･ Flow rate control by drive voltage or drive frequency possible.
･ Self priming possible.

thats the pump Im talking about.... Its at the top the piezo one...

the video is at the top of the page by the picture

http://www.directindustry.com/prod/takasago-electric/piezoelectric-micro-pump-7120-397174.html

 

[DoOrDie]

We need an accurate flow rate chart for various voltage vaping. It's that simple. Then with one of these adjustable micro pumps we can provide a solution to all in one box. Tweak in the perfect flow to the atty to taste. Nicotime's atty system is best I've seen yet!

 

[Mr.Mad]

i totally agree.. but that pumps output can be controlled by voltage.. which is easy enought.. cant wait for a response from the vendor.

 

[v1John]

They have different kinds, this one here is self priming, max. flow rate of microliters per minute. A second button on the ecig battery which is colored red could be used only when additional fluid is needed at the coil or cartomizer.

Wonderful video of it:

http://www.takasago-elec.co.jp/en/product/new/EO-Pumps_demo.wmv



links are about the micro-osmotic pump, the video is outstanding, both ithe image and video, and the data are from here: Solenoid Valve Manufacturer, Takasago - New Products .

 

[Shad0w]

Nice video John.

Also would like to share that the current proliferation of voltage steppers (3.7 to 5)
can also work the other way.

Or a simple resistor in line with the circuit.

I agree that we need a way to measure the proper flow rate for satisfactory wetting of the atomizer.

I know it was mentioned earlier (I think) but even a semi higher flowing pump could be made to work as wekk with a nozzle attached to further atomize it into a spray across the atty.
Much like a fuel injector.
Then voltage could remain static as well as flow rate, but pressure could be increased mechanically to ensure the most expedient delivery system.

Perhaps if any of you work in a lab or some such you can provide measurements (flow) of a droplet of say 80/20 and 50/50 PG/VG mix over the course of a minute using standard containers and a pre-determined orifice size for delivery?

Sorry if this doesn't make much sense. It does in my head....

 

[v1John]

The video did show a very slow moving liquid, and I think they made it look like a coil, when it went through the curves in that plastic thing.

I think the human flow rate would also depend on the ecig voltage, because at slightly over 3 volts, my drops last a while, but on the 5V PT, I can use them up so quickly.

Look at that wave-like coil in the video, is there a way to atomize liquid at that location? What I wonder is if an atomizer could be placed in such a way that atomization could occur, but any excess un-vaporized liquid would merely proceed along the flow and get recirculated. This is a recent idea, so I haven't thought much more about it. Would it work? It probable would not need much of a wick at all, and no blue foam or anything like that, and the 'liquid tubing coil' part could be something like glass or ceramic with microperforations strategically placed near the atomizer? Whatever small amount of wick it has would only be to cover the few microperforations, and separate the ceramic liquid coil from the atmizer wire?

 

[hoogie76]

We were looking at these: MicroBase Technology Corp.-Micro Piezoelectric Pump,Micro Pump,Nozzle plate,Inkjet Nozzle plate,Laser LIGA,Stamper,Micro electroforming,Micro laser welding,Micro continuous wave welding,Micro metal mesh,Metal mesh sprayer,Aluminum welding,Metal nozzl Piezoelectric Pumps&PKey=aBPXaB35 but were about $52 each in qty 10.

hoog

 

[DoOrDie]

We were looking at these: MicroBase Technology Corp.-Micro Piezoelectric Pump,Micro Pump,Nozzle plate,Inkjet Nozzle plate,Laser LIGA,Stamper,Micro electroforming,Micro laser welding,Micro continuous wave welding,Micro metal mesh,Metal mesh sprayer,Aluminum welding,Metal nozzl Piezoelectric Pumps&PKey=aBPXaB35 but were about $52 each in qty 10.

hoog

And so how were you planning on dealing with the high (for our purposes) flow rates of about 3 ml/min on those pumps?

I've been waiting on some kind of answer from someone somewhere about the flow rates we are going to need across an atty, but so far it doesn't seem like anyone wants to step up to the plate on that.

But I just know one of you mad scientist types is in your lab as we speak optimizing your clandestine little pump and airless sprayer tip on an atty right about now. Come on, spill the beans!

 

[v1John]

If the red button on the battery turns the pump on, the flow rate is less important. You would only use the red switch to re-soak you carto or atom. A 1 or 2 second cutoff switch like the ones that some batteries already use would cut the pump off after the proper amount of seconds elapsed, to control the amount of juice.

http://www.takasago-elec.co.jp/en/product/new/EO-Pumps_demo.wmv

Some of these pumps can probably pump less than the maximum flows on their specifications. Did you see the video? Imagine pressing a button that activates the pump for 1 or 2 seconds at a time...That's what I'm think of. Or think of the LED on the ecig, you know how it blinks? Instead of the circuit causing an LED to blink, it could be used to pulse the pump, and slow the flow. Pulse width modulation is already in ecigs, the ego works like that too, when you turn an ego on, it pulses the voltage to the atom.



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[jern59]

http://www.e-cigarette-forum.com/fo...ectric-pump-3-7-volt-2-dollar-flashlight.html

 

[Sci]

Has anybody taken a look @ these? A1 KNF OEM Diaphragm Vacuum Pumps and Compressors for Air and Gases

 

[nickarsow]

Dear developers,
Accidentally I found out these piezo-actuated diaphragm micropumps which I think are interesting. ( Development of micropump | Research & Development | NIKKISO )
I'll ask more information from the manufacturer and will post it here when I have it available.
Here are some more info files:
http://unit.aist.go.jp/amri/group/ufg/en/intro.html
http://www.microjet.com.tw/english/micropump.htm
http://www.i-micronews.com/interviews/Bartels-Mikrotechnik-shares-view-Micropumps-market,43.html
http://yokota-www.pi.titech.ac.jp/Labo Files/Res-03/Res04J-MPump-Res2.htm

 

[capecodjim]

If the red button on the battery turns the pump on, the flow rate is less important. You would only use the red switch to re-soak you carto or atom. A 1 or 2 second cutoff switch like the ones that some batteries already use would cut the pump off after the proper amount of seconds elapsed, to control the amount of juice.

http://www.takasago-elec.co.jp/en/product/new/EO-Pumps_demo.wmv

Some of these pumps can probably pump less than the maximum flows on their specifications. Did you see the video? Imagine pressing a button that activates the pump for 1 or 2 seconds at a time...That's what I'm think of. Or think of the LED on the ecig, you know how it blinks? Instead of the circuit causing an LED to blink, it could be used to pulse the pump, and slow the flow. Pulse width modulation is already in ecigs, the ego works like that too, when you turn an ego on, it pulses the voltage to the atom.



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Yes, a separate switch for the pump means the flow rate is irrelevant. Just pump when you need some juice. .05ml= 1 drop so figure .1ml on each cycle triggered by the push button.

The output of the pump could also fill a cart so the cart was always wet and ready. The flow rate wouldn't matter because the cart filler would buffer an infrequent large dose.

Do cartomizers make this obsolete?

It still seems pretty neat and could lead to some fun mods.... the hunt for a pump continues..... other parts on the way!!

 

[5cardstud]

There's allot of micro pumps out there for sale but you have to order them in large quantities. I was researching that when I got on ECF but that's why I gave it up.

 

[capecodjim]

Hmmmmm.... there's gotta be some stray ones on ebay or a company that will give free development samples like TI does with chips.... $52 is pretty steep in lots of 10... I might take one in the name of science if 9 other people want to go in but prolly better to wait til the price drops or we find a reasonable source..... The search for parts continues!!

I'm looking for a two position push button switch... so when you push it it half way it will fire up the atty and when pushed all the way it will pump 2 drops of juice on the atty or replenish the cart..... I also want a rotary wheel potentiometer around the pb switch to adjust the voltage. RS has a one position pb in a pot... but I need a 2 position..... The search for parts continues!!