Two-stroke diesel engines are commonplace in large container ships. Their thermal efficiency is around 50 per cent while four-stroke diesels struggle to reach 35 per cent.

A small tractor? Just find some big knobby ... It’s an Open Source Two-Stroke Diesel Engine that’s easy for anyone to build and has minimal moving parts. [Shane]’s engine is based on the ...

We’re introduced to the traditional two-stroke diesel engine as thermally efficient ... something which due to their small size they seem ideally suited for. Perhaps the free piston engine ...