What is the function of a flywheel in engines?

The function of a flywheel in engines is primarily to store rotational energy and smooth out power delivery. As the engine operates, it produces bursts of power with each cycle of combustion. The flywheel accumulates energy during the power strokes and releases it during the non-power strokes, leading to more consistent rotational speed and power output. This helps to provide a smoother performance and more efficient operation, effectively reducing fluctuations in engine speed that can occur during different parts of the combustion cycle.

Additionally, the flywheel contributes to the overall balance of the engine by maintaining momentum, which is essential for keeping the engine running smoothly. In doing so, it allows for better acceleration and reduces the likelihood of stalling, ensuring that the engine can perform efficiently under various operating conditions. The role of the flywheel is crucial for the stability and responsiveness of an engine, which is why it is integral to the design of most internal combustion engines.