The BMP-3 can lay its own smoke screen by injecting fuel into the exhaust.

It will also run much hotter, with water-cooled bearings so we don't need to inject fuel to cool the engine.

The idea behind an afterburner is to inject fuel directly into the exhaust stream and burn it using this remaining oxygen.

Unit direct injection also injects fuel directly into the cylinder of the engine.

Many, mostly in military aviation, add an afterburner which injects extra fuel into the hot exhaust.

The afterburner then injects fuel downstream of the turbine and reheats the gas.

The engine would inject fuel into this slug of air and ignite it.

An afterburner may be used to inject extra fuel into the hot exhaust, especially on military "fast jets".

A turbopump was used to inject fuel and oxygen into the combustion chamber.

A port injection system injects fuel just prior to the intake stroke (outside the cylinder).