Quote:
Originally Posted by Big Dave
Do these DI gas engines have throttles?
|
Yes.
An Otto cycle engine has to have something restricting airflow, as that is the only way to ensure a homogenous air/fuel mixture. The Diesel cycle does not have this requirement and can take in un-throttled air.
If you can figure out how to keep gasoline from detonating when the mixture isn't homogenous, then you can get rid of the throttle.