jus2shy wrote:
One of the proposed approaches of handling particulate matter from a GDI motor: SAE Article on GDI.
Some interesting notes.
- Looks like Audi will join the ranks of Toyota in implementing a port and direct injection setup to help aid in reducing soot emissions (probably with the added side effect of washing the backs of the intake valves as well).
- Particulate filters are also noted as a possible way to curb soot emissions.
- Also seems like they're looking to higher injection pressures and increasing fuel atomization, getting the injection scheme closer to that of diesels. I have to wonder how that will work with a fuel that has even less lubricating properties than Diesel. Hopefully they don't use the CP4 as a springboard for designing a new injection system ;)
The 2017-2022 time period will be interesting in the world of the Internal Combustion Engine (gasoline specifically).
Do some research on the direct injected 2 stroke outboard motors if you want some examples of how gasoline can be injected at higher pressures.
