Bolt action propane injection.

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
SpeedyFerrite
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Tue Apr 17, 2007 3:30 am

I have devised a way for precise propane injection using a measuring chamber on a slide, it's kind of difficult to explain and you'd probably not understand my idiotic way of stating things, so I have prepared a little flash animation.
link

You can use different sizes of fuel chambers for different sizes of combustion chambers.


(This is probably the dumbest post ever made, but I feel like I'm contributing so bear with me)
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experament-u2
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Tue Apr 17, 2007 4:25 am

interesting i dont see y it wouldnt work
oh and are u useing pin valves?
SpeedyFerrite
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Tue Apr 17, 2007 5:09 am

Pin valves?

I'd be using the little things lighters have to refill, if that's what you mean. :)
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jackssmirkingrevenge
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Tue Apr 17, 2007 7:23 am

it would be tough to meter the exact amount of fuel, plus you'd need an effective way of venting the chamber.
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LucyInTheSky
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Tue Apr 17, 2007 7:38 am

To vent th chamber you could maybe fit a schader ing the chamber wall and hook it up to a compressor?
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iknowmy3tables
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Tue Apr 17, 2007 7:48 am

or a blower and check valve
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Bubba05
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Tue Apr 17, 2007 2:19 pm

I posted a simaler design a few weeks ago?
WHAT THE?

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lukemc
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Tue Apr 17, 2007 3:00 pm

it sound like it would work but the animation dosent show it fireing i i dont know :wink:
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Tue Apr 17, 2007 3:50 pm

now i can see the animation, so I'd have to say that this is not regulated so a regulator must be attached first, you can still have a pin valve by attaching a tire chuck, and a schrader and on the other side a schader and a pin
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