The internal combustion engine, for all its mechanical sophistication, still runs on a 19th-century mechanical idea: pistons rising and falling, a crankshaft spinning, a steam-age architecture ...

The rotary engine was an unconventional design that delivered great power for its size. Here's what's good and bad about it.

The rotary engine, previously a staple in Mazda's lineup, is an engine design that foregoes the round piston and singular chamber of a regular reciprocal internal combustion engine. Instead, the ...

You hear endless myths about the Mazda RX-7, from breathless praise of its “magic” to horror stories about blown apex seals.

Washington — Remember the Wankel? There's a new spin on the rotary engine whose quirky name once made it fodder for a Monty Python sketch. Conceived by German inventor Felix Wankel in the 1920s, the ...