This Architectural Drawing is AutoCAD, 2d drawing of Details of fuel input to the diesel engine in AutoCAD, dwg file. In a diesel engine, fuel is introduced as the piston approaches the top dead centre of its stroke. The fuel is introduced under high pressure either into a precombustion chamber or directly into the piston-cylinder combustion chamber. With the exception of small, high-speed systems, diesel engines use direct injection. For more details and information download the drawing file.