Diesel engines have pistons that look different from the ones you'd see with a gas engine. There's a reason why that's the ...

Their focus is on free piston engines as power sources for hybrid electric vehicles, something which due to their small size they seem ideally suited for. Perhaps the free piston engine has faced ...

Technically speaking, the portion of the piston that's missing is small, but it doesn't take much to kill an engine. Per the video, it appears the cylinder was running hot enough to melt the piston.

a turboprop uses a turbojet engine, hence the name. Unlike piston-engined planes, turboprops use Jet A1, made of kerosene and a small number of other additives, rather than high-octane gasoline ...