New diesel tech to study soot formation

[Daox]

Interesting idea, they are taking samples out of the combustion chamber, up to 13 per combustion cycle, to study how soot is formed.




German researchers demonstrate diesel truck engine with barely measurable emissions

[Old Tele man]

..since excessive combustion temperature is the root cause (hence the need for EGR), one would assume a simple high-temp thermocouple would provide more useful temperature data.