The free piston engine, a design with opposed pistons working against ... That’s a huge obstacle for any new technology to climb. Meanwhile though it offers obvious benefits in terms of ...

this new design features oblong or “pill-shaped” pistons that could significantly impact engine efficiency and performance.

And a little earlier we heard Navistar say its new S13 is the last internal combustion engine it will ever design from the ground ... opposed-piston Achates engine. It already meets those tough ...

The company is showcasing a “one-stroke” engine that works as an opposed ... The INNengine design is an opposed piston setup in which there are four pistons on each side to make eight in ...

Enhanced engine block design allows the new 15-liter engine ... oil pan help to reduce the engine’s overall weight. The new X15’s pistons are now more compact, reducing overall engine weight ...

But reinventing piston-powered engines ... that Avadi sees as prime candidates for its revolutionary design. The engine also uses fewer than half the number of parts as a traditional ICE, which ...

The design is water-cooled, with the pistons angled at 75 degrees. This gives you a sense of how skinny the V3 engine is ... mass production” on this new three-banger idea, so we may see ...

DeltaHawk has added two new higher-horsepower models to its family of jet-fueled piston engines ... All the DeltaHawk engines are based upon a clean-sheet design and feature an inverted-V engine ...