Rotary engines are alternatives to piston engines. They have different mechanics than the latter, but, like piston engines, they are internal combustion. The cameras change sizes as the rotor spins around. Rotary engines are to be considered as advances in engine technology in relation to those that are older. However, there are advantages and disadvantages in rotary engines.
Rotary engines have some distinct characteristics that differentiate them from other engines. They have no pistons. Piston engines have a compression and ignition system, however, a rotary engine does not work like this and performs these tasks in a single rotation. It has a triangular rotor rotation system that revolves around and completes its tasks in one movement.