Bruce....yes, interesting and love this stuff too
NOx is going to be managed with bigger CATs and there are new sensors
that will come along with that evolution
Particulate, for now, looks like diesel like exhaust filters and the
onerous cleaning/purging cycle(s), but the latest in this embryonic
technology looks like the shape of the piston top.
It is looking more and more like a bowl than a flat top. DEEP bow with
a flatter head CC area. Controversy over flat or protruding into the
piston bowl cavity or ???
The torque curves looks much like a big block gasser and diesel
Top RPM won't reach small block gassers at this point, but who knows
what these kids in their labs will come up with
No throttle...just like diesel. Forced fed is amazingly doable.
Back on this topic's IP...direct injection of gasoline...
Now that the injectors are 'FAST ENOUGH', multiple squirts of varying
duration (control the burn from very rich...to extremely lean)
Much work is being done with the nozzles. Ruby is the leading material
BUT...with pressures above the diesel common rail...Bosch CP4 pump
issues are going to come up...but they are now aware of the stupidity
in design from those Bosch engineering teams...a better pump will
come and betcha a CP4 for diesel will morph from this work
So similar to the GDICI work and are now married. We will see it in
the next gen DI gassers...ruby orifices...IMHO
Finally, pre-chambers are also coming from GDICI into current DI
to most likely become next gen DI
Yes, fun stuff...
