Pellet gun hybrid?

[scianiac]

Sorry if this is has already been brought up but the search gives like 500 results.

Has anyone ever tried to convert a pump pellet rifle into a hybrid? A micro igniter like a glow plug from a RC car or a timed, constant, or rapid spark gap right after the valve then just inject fuel when you pump it. They already have 1000fps so that plus hybrid boost would be quite something. Just a thought.

[jackssmirkingrevenge]

It would make more sense to have a fuel/air mix ignited by the compression of a spring gun piston.

Take a look

[THUNDERLORD]

I think it would mess up your airgun, besides being dangerous.

Been wondering about using a piston (not piston valve, a piston like an engine) inside a combustion or hybrid chamber.
It would press forward compressing (pressurizing) a large volume of air into a much smaller diameter barrel.

Similar to a spring powered air-rifle except the cylinder would be much larger and rather than a metal spring being cocked back and released, the combustion force would do the work.

Haven't studied volumes or pressures mathematically yet.
It seems a burst-disc would be useful too maybe for this idea of transforming the slow moving large mass of combustion into higher velocity lower mass projectile.
Probably been done before somewhere(?)

I have another project at the moment that is pneumatic for now. 8)

[dudeman508]

My uncle tried that, only he just put sewing machin oil in the gun and he got his pelets supersonic. The spring compression ignited the oil, and it lasted 6 shots.