Engine manufacturer has sought several patents for open-fan designs in the past two years, even as it publicly commits to ...

Many mainstream automakers are moving away from sports cars. But not Mazda, which seems set to offer two different models. We’ve already reported on the company’s planning for what will become the ...

A self-propagating series of explosions, contained between the blades of a high-speed rotor, promises a leap in power and efficiency during hypersonic flight – provided this radical new engine ...

Mazda’s CEO says the company is “very close” to finishing a twin-rotary engine that can meet strict emissions regulations Two rotors will make the engine powerful enough for U.S. buyer ...

The 128-hp twin rotor “L10B” engine could shoot the Cosmo to 60 mph (96 km/h) from zero in nine seconds, on to a top speed of over 120 mph (193 km/h).

In contrast to the piston engine, the rotary engine drastically decreases the number of moving parts. A single-rotor rotary engine comprises just two moving components: the rotor and the eccentric ...

This engine produces about 690 horsepower in race-trim, a power figure it achieves from just 2.6L (654cc per rotor) of naturally aspirated engine. That is a truly astounding power/weight ratio.

Mazda has already put the rotary engine back into limited production, using a small single-rotor 830-cc version that produces a peak of 74 hp to act as a range-extender in the MX-30 R-EV, a model ...