How many valves does a 2 stroke diesel engine have and what is there purpose?

A typical 2-stroke diesel engine has two main valves: one for intake and one for exhaust. The purpose of these valves is to control the flow of air-fuel mixture into the combustion chamber and the expulsion of exhaust gases after combustion. In some designs, ports may be used instead of traditional valves to facilitate this process, allowing for a more efficient exchange of gases during the engine's cycle. This configuration contributes to the engine's compact size and power output.