Comments by "H. " (@LocPH.) on "Understanding Porsche's New Six Stroke Engine Patent" video.

@GRAHAMAUS what??? The most efficient ICE operates at 55% thermal efficiency (Wärtsilä ship engine), the second most efficient is a recently launched Chinese diesel engine with 53% and the third most efficient is the Mercedes F1 engine from 2014 with just over 50% (including MGU-H). Lots of commercial diesel engines in trucks and generators can hit 45%. All of this is improving too. Batteries also have a certain charge/discharge efficiency and the same goes for inverters, all of which has to be accounted for. Pumping fuel to an ICE is MUCH more efficient than any of those. Also, the much added weight of batteries considerably reduces overall efficiency in weight-sensitive applications like airplanes and cargo transport. Electric has its place, and so do ICE:s, so quit the whole "electric is the end all be all" mantra.
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@GRAHAMAUS Literally 2 of the 3 engines I mentioned are car engines. And one of those 2 engines is a gasoline engine, the F1 engine. Technology that has already started to be applied in road cars. All of the mentioned engines, including the gasoline one, reach over 50% TE. Re-read my previous comment. Diesels generally run lower temperatures, not higher, as they usually operate ultra lean. This results in lower heat conduction losses, which along with higher CR makes them more efficient.
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