ABSTRACT:
The designed air driven engine is an economic friendly engine which operates with the aid of a compressed air. in principle, an air driven engine uses the expansion of compressed air to drive the pistons of an engine. an bio gas driven engine is a pneumatic actuator that creates useful work by expanding compressed gas. there is no mixing of fuel with gas as there is no combustion. An gas driven engine makes use of compressed gas technology for its operation the compressed air technology is quite simple. if we compress normal air into a cylinder the air would hold some energy within it. This energy can be utilized for useful purposes. when this compressed air expands, the energy is released to do work. so this energy in compressed air can also be utilized to displace a piston.