Huh. It's a 2-stroke diesel. Who the hell thought these would come back! The lack of cylinder heads is very interesting, as I never really thought of that in an opposed piston design like this but it's true.Lower friction: With no cylinder head bolts to distort the bore, there’s less ring friction, and the lower peak operating speed of any compression-ignition engine lowers friction.
Lower pumping work: Intake and exhaust enter and leave via ports arranged around the cylinder at the top and bottom of the pistons’ strokes, so the pistons do no pumping work. With some of these ports open at all times on an engine with three or more cylinders, the supercharger and turbo also operate more efficiently.
Opposed piston engines?
Opposed piston engines?
http://www.motortrend.com/news/at-least ... 0EC9F1F4F8