Certainly the most common is the Otto cycle, or spark ignition engine, or gasoline engine. The Diesel cycle has certainly seen rejuvenation of late and will be the topic of another column. The two ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...

Most modern gasoline and diesel-powered engines found in the cars and trucks seen on today's roadways rely on the four-cycle-engine principles developed in the late 1800s by Nikolaus Otto, Gottlieb ...

Cobus has never been able to keep his car opinions to himself and at age 12, he expressed them in no uncertain terms to a certain motoring magazine’s editor. It was the first of many times he would be ...

You might have heard of an Atkinson cycle engine, or even own a car with one fitted - after all, plenty of car models have them. The Atkinson cycle engine is nothing new, as the man it’s named after, ...

Porsche patented a 6-stroke engine Outside of early Saabs, most gas-powered car engines are a 4-stroke Porsche's 6-stroke patent seems to indicate it could eke more power out of an engine Unless you ...

As the global automotive industry shifts towards electric and sustainable cars, Porsche has announced one of the biggest revolutions of the present-day internal combustion engines, the six-stroke ...

From the January/February 2025 issue of Car and Driver. A patent for a six-stroke engine would normally go directly into our crackpot-engine file, but when the patent filer is Porsche, we feel ...

Porsche has patented a revolutionary new engine with a six-stroke combustion cycle. Essentially, the engine is combining both a two-stroke and four-stroke engine into one, taking the individual ...

The piston ends its downstroke and begins moving upward, compressing the air/fuel mix until combustion happens and the whole cycle begins anew. This means that the high torque efficiency of the ...