When it comes to unconventional engine design, few exceed the Wankel rotary in terms of weirdness. Despite that, the same basic principles of internal combustion apply here: Fuel and air are mixed and ...

Here's the process of making this rotary valve engine with a different intake and an exhaust system. It wasn't easy to start ...

Developing a gasoline-powered rotary engine was a dream for Felix Wankel, and we mean that literally. Some steam engines worked on the same basic principle as far back as the 18th century, but the ...

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