Just when you thought Porsche was phasing out internal combustion the Stuttgart sports car maker has decided to re-invent the whole process. Porsche has now developed a six-stroke combustion system which adds an additional compression and power stroke to increase efficiency and horsepower.

Basically, this thing is a mashup of four-stroke and a two-stroke engine designs (here's how an engine works, by the way), that results in two power strokes in three revolutions.

As patent filings with the U.S. Patent and Trademark Office recently highlighted by Motor1 reveal, Porsche has come up with a detailed plan for a newly developed six-stroke design. Instead of relying on a traditional combination of intake,

The patented engine design features a special crankshaft that adds more power and compression strokes to the cycle.