A review on the physiology of Insulin like Growth Factor-I (IGF-I) ... by Debnath, Surajit / Advances in Environmental Biology.
The spring piston airgun generates power using a powerful spring-loaded piston that is housed within a compression chamber. Cocking the gun (using a break barrel, side lever, or under lever mechanism) causes the piston assembly to compress the spring. When the spring is released it pushes the piston forward compressing a column of air in the chamber behind the pellet.
The piston is what is what is pushed down to create power to the engine . the fuel comes in thru the fuel injectors or carburretor, then is pulled into the combustion chamber,â¦ the spark plug ignites the fuel/air mixture causing an explosion inside the cylinder, pushing the piston down making power.