Piston engines, also known as internal combustion engines, play a crucial role in powering vehicles and machinery by converting fuel into mechanical energy through a series of controlled explosions. These engines operate through four main strokes—intake, compression, power, and exhaust—allowing them to efficiently produce the necessary power for various applications. With advancements in technology, modern piston engines have become more fuel-efficient and environmentally friendly, making them essential in both transportation and industrial sectors.