I have already written about LiquidPiston and its XTS-210, but Avadi's idea is even more striking: it is a reciprocating engine that works as a rotary. Imagine an ICE with a single piston.

Either way, Avadi demonstrated a prototype some years back. The MA-250 engine was producing 15.8 hp (11.8 kW) at 3,700 rpm and 22.3 lb-ft (30.24 nm) at 3,500 rpm weighing a mere 23.6 lb (10.7 kg ...

The prototype Avadi is a 250 cc engine that produces 30 Nm of torque at 3,500 rpm and 15 horsepower at 3,700 rpm. That sounds meagre, and compared to current water-cooled 250 cc engines with ...

But reinventing piston-powered engines? Not so much. Well, an American company called Avadi is undaunted by all that EV momentum and doing just that, reinventing the piston-powered engine ...