What is the purpose of the crankshaft in an engine?

The purpose of the crankshaft in an engine is to convert linear motion from the pistons into rotational motion. As the pistons move up and down in response to the combustion process, they are connected to the crankshaft via connecting rods. The crankshaft is designed with offset sections that translate the linear movement of the pistons into a rotational movement. This rotational motion is essential for powering the vehicle, as it is what ultimately drives the wheels through the transmission system.

The crankshaft also plays a critical role in the overall functioning of the engine, including balancing other engine components and maintaining engine integrity. This conversion process is vital for the engine's power generation, making the crankshaft a fundamental component of any internal combustion engine.