Liquid Piston has taken its revolutionary engine out for a spin. The Connecticut-based startup has been developing a tiny new type of rotary engine for several years that’s so innovative it received a ...

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 ...

DARPA has awarded LiquidPiston Inc. $2.5 million to continue development of a new, patented, high-efficiency, lighter-weight rotary engine. LiquidPiston, a developer of advanced combustion engine ...

DARPA has awarded LiquidPiston an additional $2.5 million to continue development of its 30kW X4 rotary diesel engine prototype, bringing DARPA’s total funding of the engine technology to $6 million.

Building the perfect engine for a drone is no easy task. They require small, high-powered engines with a high level of fuel efficiency and minimal vibrations — particularly if they’re being used for ...

For most of us, rotary engines are synonymous with Mazda's RX sports cars, and that's because Wankle's way of turning fuel into power didn't really catch on in the automotive industry. Despite the ...

Rotary engines such as the Wankel have strange shapes that can be difficult to machine (as evidenced by the specialized production machines and patents in the 70s), which means it lends itself well to ...

The rotary engine, once heralded as a revolutionary alternative to traditional piston engines, has experienced a tumultuous journey through the annals of automotive history. Despite its decline in ...

A company that makes an innovative rotary internal combustion engine just received a Phase I research grant from the U.S. Army to develop hybrid-electric propulsion for UAVs. The development ...

Rotary engines such as the Wankel have strange shapes that can be difficult to machine (as evidenced by the specialized production machines and patents in the 70s), which means it lends itself well to ...