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Smallest possible size high power ingition module?

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
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Smallest possible size high power ingition module?

Unread postAuthor: Gunner » Fri Oct 26, 2012 5:27 am

So im wondering what is the smallest possible size yet powerful enough to ignite 30x mix? I know that I have to use max like 1mm spark gap and it must be much more powerful than like bbg ignitor.

Basic disposable cam+ingition coil doesnt work because this circuit have to be very small.

I dont have stun gun so what is your opinion?

How about disposable cam hv circuit+some very small transformer? Do you have any ideas? Thanks!
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Unread postAuthor: jrrdw » Fri Oct 26, 2012 6:18 am

Did you check the Wiki for adding to the camera circuit?
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Unread postAuthor: Gunner » Fri Oct 26, 2012 7:02 am

No and like I said, I would need also with camera flash somekind of ignition coil and cars ignition coil is wayy too big. :)
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Unread postAuthor: jrrdw » Fri Oct 26, 2012 8:19 am

Read this. You have options. :wink:
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Unread postAuthor: Gunner » Fri Oct 26, 2012 8:44 am

OK Thanks, but there are only two possible choices that I could use, Triggered spark gap or Trigger transformer spark but the trigger transformer spike is way too weak for this use I have tested it earlier, it sou weak that it doesnt ignite the main spark.

Im going to find very small car or motorcycle ign.coil and dumb capacitor via thyristor. Maybe :D
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Unread postAuthor: Technician1002 » Fri Oct 26, 2012 10:22 am

Don't overlook the RC airplane market. Some 4 stoke model airplane engines use spark ignition instead of glow plugs.
http://www.ebay.com/sch/sis.html?_nkw=CDI+Electronic+Ignition+RC+Airplane+Gas+Engines+Rcexl+
http://www.apacheaviation.co.uk/Ignition_Systems/ignition_systems.html
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Unread postAuthor: jrrdw » Fri Oct 26, 2012 10:31 am

Honda quads normally use a small coil that makes around 18K volts, but require a 12VDC power supply.

From Spudfiles sponsor a better option:

For around the same price or less you can get about twice the power 30K volts with better power source options, 9VDC instead of 12VDC. You will have to shoot them a email for the size specs...

http://ultimatespudgun.com/30kv-igniter-p-219.html
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