Compact, highly efficient heavy-fuel engines could unlock greater potential in small unmanned aircraft, enabling longer missions with heavier payloads. They also could accelerate the emerging electric ...

LiquidPiston is aiming to meet the long-standing need for small, efficient and durable heavy-fuel engines for tactical UAVs. Credit: LiquidPiston LiquidPiston is to demonstrate a hybrid-electric ...

LiquidPiston built a functioning engine and has demonstrated it powering a Go-kart. Shkolnik says the engine could see its first practical application, in a drone, within a few years. The liquid ...

The developer of a line of advanced rotary diesel and multi-fuel internal combustion engines is expanding into the renewable energy game. LiquidPiston's X-Engine, which we've covered previously and is ...