Direct Injection

[76ChevyTrucker]

All right, from what I've read on here, and elsewhere, Direct Injection is going to be the new fuel delivery system on a lot of vehicles. Just a few questions about it. When I think of direct injection, I think of diesel engines with an electric supply pump from the tank, then an engine driven Fuel Injection Pump that boosts the fuel pressure up insanely, finally ending in a fuel injector that shoots the fuel directly into the combustion chamber. Is that how a gasoline-burning DI vehicle works also? And if it does, then how does the fuel mix with the air and become atomized? Another thing, wouldn't that do harm to the injector since its exposed directly to combustion chamber temperatures? I'm not trying to sound like a dick here, but I am honestly curious about how the system works.

[CSpec]

Wikipedia actually explains this pretty well:

http://en.wikipedia.org/wiki/Gasoline_Direct_Injection

[76ChevyTrucker]

Thanks CSpec. So within all rational thoughts they are taking direct injection from diesel applicatons, slapping it into a gas burning engine and calling it a day. I still don't like seeing fuel/air ratios that high though. 65:1 is REALLY lean, if you've got one factor that doesn't add up, you've got a burned piston, or worse.