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      01-31-2017, 02:22 PM   #35
ouengineer
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Drives: 2015 335xi, 97 Silvia
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Quote:
Originally Posted by MightyMouseTech View Post
Turbulent Jet? Is that like the new Mazda engine with homogeneous charge compression ignition (HCCI).

So long spark plugs!

http://gas2.org/2017/01/16/next-mazd...no-sparkplugs/

Combine this with Freevalve.

No cams, timing belt or chain, no ignition system, no accessory belt. An engine could be half the size!
No. Turbulent jet ignition is still spark ignition, it is just much more tightly controlled so that a nice, smooth, homogenous wave of combustion is created.

http://www.mahle-powertrain.com/en/e...-jet-ignition/

Mazda's HCCI looks very interesting. And quite concerning. There is good reason no one has done this for a production vehicle yet. However, with direct injection and other recent technologies, it does seem plausible. Likely, there will be a learning curve to creating long-term reliability for this engine, but I love that they are pursuing it.
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