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Mazda to further refine Wankel rotary engine for more efficiency?

Mazda's Wankel rotary engine has always been unique in the automotive landscape as a mass-produced internal combustion engine that eschews such unsightly items as pistons, valves and camshafts. The Wankel packs lots of power into a very small package, but one thing it's never been is fuel efficient, despite its relatively meager 1.3-liters of displacement. It seems the Japanese automaker is working hard to change that reputation with the next generation of the RX series. Like the classic 13B engine that the current Renesis is still based on, ... Read more →

Mazda plans to mass produce hydrogen rotary engines in about 5 years Sam Abuelsamid

There are numerous companies working on hydrogen-fueled internal combustion engines, most notably BMW with its Hydrogen7. Mazda however, is uniquely positioned to take advantage of hydrogen as a ...

Some potential rotary news for you rotorheads Jeremy Korzeniewski

Depending on how you choose to measure it, Mazda's Wankel rotary could be as big as 2.6 liters already, but to most people, the engine has always been 1.3 liters. While the engine has never been ...

Rand Cam / RadMax rotary engine up for licensing Sebastian Blanco

The REGI U.S. company has been working on a rotary engine they've named Rand Cam/RadMax. This engine uses 12 vanes and a rotor and REGI U.S. says there is one horsepower for each pound in the engine, ...

Mazda to further refine Wankel rotary engine for more efficiency? 9 months ago on Autoblog Green

Mazda's Wankel rotary engine has always been unique in the automotive landscape as a mass-produced internal combustion engine that eschews such unsightly items as pistons, valves and camshafts. The Wankel packs lots of power into a very small package, but one thing it's never been is fuel ...

Mazda plans to mass produce hydrogen rotary engines in about 5 years 1 year ago on Autoblog Green

There are numerous companies working on hydrogen-fueled internal combustion engines, most notably BMW with its Hydrogen7. Mazda however, is uniquely positioned to take advantage of hydrogen as a combustion fuel. They are, after all, the only manufacturer currently building Wankel rotary engines. ...

Some potential rotary news for you rotorheads 2 years ago on Autoblog Green

Depending on how you choose to measure it, Mazda's Wankel rotary could be as big as 2.6 liters already, but to most people, the engine has always been 1.3 liters. While the engine has never been known as a fuel-sipper, it has always been known for its excellent power-to-weight ratio. With the last ...

Rand Cam / RadMax rotary engine up for licensing 2 years ago on Autoblog Green

The REGI U.S. company has been working on a rotary engine they've named Rand Cam/RadMax. This engine uses 12 vanes and a rotor and REGI U.S. says there is one horsepower for each pound in the engine, which means a lot of oomph for the weight. The Rand Cam/RadMax is very fuel-felxible, and can accept ...


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