I stated in an earlier thread that I plan to build a single stroke pneumatic air rifle this year.
This is just a rough preliminary draft
Blue represents the trigger/ bolt housing. Green and red is the barrel and shroud. White is the valve and exhaust port. Yellow is the pump etc and pink is the pump tube.
The idea is to push 200 cubic centimeters of air into the valve with a single push. That's a lot of force required and this has been done so the idea isn't new.
A two arm lever mechanism that works on a double fulcrum was used and they state that they achieved almost 3000 psi in the valve with a single pump. My maths isn't good enough to calculate that - I just like the idea and am prepared to give it a go.
Anyone here know the math behind this? There mechanism works, there rifle shoots. I just need to work out the volume area of the valve compared to the pump tube to get maximum results.
And yes, I might just blow myself up