Moving parts of the engine

in modern times the average ship was powered by an engine for that we seafarers working on board must have at least a little knowledge of machinery for the sailors in general and more specifically a requirement for officers and our good engine. for our early stage we know the engine first divided into two parts, namely the engine moving parts and unmoving parts

  

 Piston

Rockr Arm

Valve

Crankshaft
so used for the discussion of moving parts in the engine the next post I will discuss the engine is not moving