Quote:
Originally Posted by Old Tele man
...because Diesel engines rely upon the 'self-ignition' point of fuel to run so no ignition-system is needed; and, they produce LOT's of torque but only at slow speeds (typically <3-4,000 rpm).
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Wonderful explanation, thank you.
It's my understanding that diesel engines operate at lower RPM because the fuel burns more slowly. This implies that if they operated at higher RPM the fuel/air mixture would be evacuated from the cylinder before it completely burned.
With the injection technology of today, wouldn't it be possible to precisely inject fuel at the higher RPM range that gasoline engines turn? Increasing the CR to allow for CI in a gasoline engine would produce more torque would it not? Exchanging greater torque for fewer maximum RPM seems like a good trade off.