Porsche gets latest patent for six-stroke engine, this engine reduces emissions while further improving efficiency and horsepower by adding extra compression and power stroke. The currently relatively mature and market-proven four-stroke engines use the steps of "intake, compression, power, and exhaust", with a total of four strokes to complete one cycle.
In this Porsche patent, the use of "Air intake, compression, power, compression, power, exhaust” steps, two of which do work,Improve engine efficiency per unit time.
The new engine design involves a crankshaft rotating within a planetary gear ring, allowing the piston to have two different top dead center and bottom dead center positions, allowing for variable compression.
In fact, the idea of six-stroke engines has been around for a long time, but until now, the complexity and cost of this technology have been obstacles to its popularity. The publication of this patent means that Porsche may use this technology in combination with other carbon-neutral fuels to extend the service life of internal combustion engines.