What does the crankshaft do in an internal combustion engine?

The crankshaft plays a pivotal role in an internal combustion engine as it transforms the linear motion generated by the pistons into rotational motion. When the engine’s pistons move up and down due to the combustion process, the crankshaft converts this linear movement into a rotational force, which is essential for powering the vehicle. This rotational motion is what ultimately drives the vehicle's wheels, making the crankshaft a critical component in the overall operation of the engine.

The crankshaft is intricately designed to ensure that the movement it produces is smooth and continuous, allowing for efficient energy transfer throughout the engine's systems. Understanding the crankshaft's function is essential for comprehending how various engine components interact to produce power.