A crucial component within an internal combustion engine, a valve controls the flow of gases into and out of the cylinder. These mechanical devices open and close at precise intervals, timed to coincide with the piston’s movement. Intake examples allow the air-fuel mixture to enter the combustion chamber, while exhaust types facilitate the expulsion of spent gases after combustion.
The proper functioning of these elements is paramount to engine efficiency and performance. Their precise operation ensures optimal combustion, leading to increased power output and reduced emissions. Historically, their design and materials have undergone significant advancements, contributing to improvements in engine reliability and longevity. This development mirrors the advancements in metallurgy and manufacturing techniques.