LiquidPiston is to study the application of its rotary diesel engine technology to hybrid-electric propulsion systems for unmanned aircraft and advanced air mobility vehicles under a contract from the ...

Despite electrification taking the lead as an alternative source of propulsion, some automakers, including Toyota, Honda, and ...

China has unveiled a new type of air-breathing engine that could replace today’s turbine-ramjet systems, and reshape how future fighter jets and missiles achieve hypersonic speeds. The so-called ...

A government-backed research institute is funding work to develop a hybrid-electric powertrain based on a new version of the Wankel piston engine that is now being used to power Mazda's new RX-8 car.