spark-ignition engine

A spark-ignition engine is a type of internal combustion engine that powers most cars. It uses gasoline as fuel, which is mixed with air and compressed inside cylinders. A spark plug then creates a small electrical spark, igniting the mixture. This controlled explosion pushes a piston down, generating power to turn the engine's crankshaft, which ultimately moves the vehicle. The process repeats rapidly, allowing the engine to run smoothly and efficiently. Spark-ignition engines are valued for their responsiveness, ease of starting, and ability to deliver reliable power for transportation.