Mazda's new patent isn't an announcement, but this could mean it's revisiting its rotary engine technology for use in future ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...

Every time Mazda files a patent with the word "rotary" anywhere near it, the same ritual plays out. Enthusiast outlets dust ...

Mazda’s rotary engine has spent much of the past decade looking like an engineering curiosity from another era, but a newly ...

A fresh US patent filing takes on the exact emissions weakness that has kept Mazda's rotary revival stuck on concept-car ...

Wankel rotary engines, typically but not exclusively found in Mazdas, certainly lean on the "quirkier" side of modern powertrain systems, made quirkier because most rotary-powered cars on the road ...

View post: The BMW XM is the Brand’s Worst Modern Sales Flop. What Happened to the $160,000 PHEV? When it comes to engines, the Wankel rotary is one of the lightest and smallest there is, not to ...

How the 13B-MSP Renesis evolved from earlier Mazda rotary designs, technical features explained, and common problems and maintenance issues discussed. The 13B-MSP Renesis rotary engine powered the ...

We live in an age of downsizing in the automotive world. Super and hypercar manufacturers like McLaren and Ferrari are ditching big-capacity, high-cylinder count engines in favor of boosted V6 and V8 ...

The company’s new filing outlines a clever EGR setup aimed at cutting emissions while supporting more power.

Despite electrification taking the lead as an alternative source of propulsion, some automakers, including Toyota, Honda, and Hyundai, are still researching hydrogen as a fuel source. Hydrogen has ...