Fuel Injection Nozzle DSLA160P1786 Fuel Injection Nozzle E286 (4SF) Whats--App 86--1--3--3--8--6--9--0--1--3--2--6 Alen----(at)----china-lutong---(dot)----net Common Rail is now the most common fuel system in diesel vehicles. Diesel engine performance and emissions are closely related to fuel atomization and spray processes, which in turn are strongly influenced by nozzle geometry. Injection nozzles for diesel engines inject the fuel into the combustion chamber, atomize it and seal the combustion chamber by means of the nozzle needle. In the Common Rail System, the injection nozzle is part of the injector.