ShinerBock wrote:
FishOnOne wrote:
ShinerBock wrote:
FishOnOne wrote:
ShinerBock wrote:
I wonder how long it will be before they put particulate filters on these engines due to how much PM they produce.
They will add port injectors like Ford did before particulates filters are added.
While that reduces them at idle and under low load(especially in emission testing scenarios) it doesn't eliminate them once the DI kicks in at mid/high load. If the EPA testing gets more strict(just like it always does) to include these mid/high load scenarios then a PM filter will be needed eventually.
And they'll increase fuel pressure to improve atomization. I doubt we'll see a exhaust filter anytime soon.
Easier said than done for gasoline without running into detonation issues. Although it is the better atomasition of gasoline than diesel that makes finer particulate matter. Not saying it will come in the next five years or so and it will mainly depend on the political climate. It may happen in Eurpoe or Claifornia first.
Isn't that what DI prevents -detonation- because they can have the injection event after top dead centre?
after all these compression ratios are in the 10/1 range,well into detonation territory?
