Direct Injected Engine Diagram. Medium to small size engines. In the common rail injection system the injection pressure does not depend on engine speed and load.
101 of text a cb a quiescent chamber with multihole nozzle typical of larger engines b bowl in piston chamber with swirl and mult ihole nozzle. With a direct injection system or di the fuel is injected directly into the combustion chamber usually on the top of the piston which is designed to control the spread of combustion. Medium to small size engines c bowl in piston chamber with swirl and singl e hole nozzle.
Jon feiner casey wagoner.
Compared to the conventional type of diesel injection systems it is a superior system for fuel consumption exhaust gas emission operating system and noise reduction. The fuel will be injected directly into the combustion chamber with the help of the fuel injector. Direct injection diesel engine 1. Common direct injection compression ignition engines fig.