Gasoline engines use the compression stroke to release more energy on the power stroke. It isn't absolutely necessary for combustion. On diesel engines however, it is required.
@ Cosmic Muffin True, gasoline itself doesn't combust but it has a very high evaporation rate. The vapors mixed with air causes the combustion. This is the reason why so little fuel is needed per stroke. If the amount being injected is equal to the amount being vaporized and combusted then there is no reason to fear flooding. However too much or too little per stroke can result in flooding as too little would not ignite and collect beyond the ignition ratio while too much saturates the air to a point where there isn't enough oxygen to reach igniton.
Proposed Carburated Bolt Action Cannon (Need Feedback)
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rcman50166
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I like the concept and I think it may be possible to use with other fuels, with a few modifications. I experimented with gasoline as a fuel once and I haven't found it very effective. It is not very powerful and is not clean burning. It doesn't seem like this design would work well without some kind of fuel compression.
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rcman50166
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Maybe you've had a bad experience with gasoline, but I have found, after some testing, that gas is actually a very good fuel. There may be carbon buildup after a while but for a seal that is a good thing. You could also try something of a higher octane or alcohol based. Those typically burn cleaner at lower pressures.
i think that hairspray would be the best alternative to gas because gas stays lit forever 1oz=1min burn time but i think that if you add a spring infront of the piston in the tank and then have a powerful ingector it may halp make it a almost semi auto shot and if the pistonis cone shaped the gases will travel fastest on another note that feed tube would need a spring or a presure powered feeder
i think that hair spray would be the best alternative to gas because gas stays lit forever 1oz=1min burn time but i think that if you add a spring in the front of the piston in the tank and then have a powerful injector it may help make it a almost semi auto shot and if the pistons cone shaped the gases will travel fastest on another note that feed tube would need a spring or a pressure powered feeder
