The International Engine of the Year Award is a prestigious accolade in the automotive industry, recognizing the best engines in various categories based on performance, fuel economy, and innovation.

Pistonless rotary engines are the engine family to which the Wankel engine belongs. These engines do not use reciprocating pistons that travel back and forth within a cylinder.

A Wankel pistonless rotary engine has a rotor that looks like a rounded triangle, a shape called an epitrochoid. It rotates in an eccentric orbit within an oval chamber; each rotation results in ...

Not only is Mazda pursuing a rotary engine to power a vehicle, Davis admits Mazda is also investigating ways to use the design in tandem with an electric motor, with the pistonless engine ...

Mazda looks back on 50 years of rotary-powered dreams The pistonless engine observes a half century of high-revving heroics.

Mazda spokesperson Jacob Brown confirmed that the automaker has continued to study and develop range-extending technologies based around the pistonless engine, and he also confirmed that Mazda is ...

Despite having some unique differences from and advantages over piston-centric designs, pistonless rotary engines like this one have generally fallen by the wayside when it comes to practical use ...

While this style of pistonless engine isn't in use much anymore, Zholner's recreation makes them accessible. You might not have all the tools needed to make an engine of your own, but you probably ...

The U.S. Air Force is bankrolling development of a pistonless internal combustion engine that would provide unmanned aerial vehicles with more power and greater torque in a smaller, lighter ...

The unique pistonless engine makes an awesome sound, as it happily revs up to 9k rpm. The manual transmission shifts as well as sports cars costing 2 to 3 times more (triple cone syncros help).