Diesel Engines Mechanical SSSP | Fuel Systems SSSP | HP-Fuel Systems SSSP | Distribution of Fuel

Question 1

Name 4 important variables affecting how fuel is distributed in order to mix with turbulent air.

Answer 1

1) the angle of the injector spray holes
2) number of nozzle orifices
3) size of nozzle orifices
4) injection pressure

Question 2

Modern diesel engines typically feature more injector spray holes than older engines - with as many as ___ holes in new engines, compared with only ___ in older engines.

Answer 2

13 (new modern), 4 or 5 (older)

Question 3

Fuel systems incorporate design features to ensure _____ beginning and ending of injection.

Answer 3

abrupt