What is the function of valves?

1 Answers
OReed
07/29/25 12:27pm
Valves are specifically responsible for introducing air into the engine and expelling exhaust gases after combustion. Here are the relevant details: Types of valves: Engine valves are divided into intake valves and exhaust valves. The intake valve's function is to draw air into the engine to mix with fuel for combustion; the exhaust valve's role is to expel the burned exhaust gases and dissipate heat. Composition and performance of valves: A valve consists of a valve head and stem. The valve head operates at very high temperatures and endures gas pressure, valve spring forces, and inertial forces from transmission components. With poor lubrication and cooling conditions, valves must possess certain strength, stiffness, heat resistance, and wear resistance.
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