Six Education: Inside Porsche's Six-Stroke-Engine Patent

[u/Juicyjackson]

https://www.caranddriver.com/news/a63266626/porsche-six-stroke-engine-patent-details/

[u/orhantemerrut]

Interesting, and of course puzzling. The second compression/stroke seems to happen along such a short amount of displacement that it's difficult to surmise its practical function. The first thing that came to my mind is to compensate for turbo lag as the fourth stroke contains both exhaust outtake and air intake. That small power might help with the lag... maybe?

[u/Gonnaragretthis → u/orhantemerrut]

IIRC, the 4th stroke allows for more complete combustion and helps reduce emissions?

With regulations tightening up, especially in Germany, I see this as a potential play for Porsche to keep ICE alive awhile longer.

[u/HurjaHerra → u/Gonnaragretthis]

🤞🏼🤞🏼🤞🏼