Quote:
Originally Posted by berettafan
so I read the first few paragraphs and I'm not clear on what's new here?
mazda wanted to use compression only to ignite an ultra lean fuel/air mixture but it wouldn't work so they brilliantly introduced spark to the mixture and boom, skyactiv x!
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Think of it like a thermonuclear bomb.
A fission bomb creates the environment for a fusion bomb to go off.
The combustion chamber has a fuel/air ratio for compression ignition.
A precise second direct injection fuel pulse creates a small area near the spark plug that fires off like a conventional gasoline engine, this explosion raises the compression of the remaining leaner fuel/air in the cylinder and allows it to combust from compression rather than ignition spark.
Did that make sense?