Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Over-the-top rotary builds are an enthusiast tradition. Because so few rotary cars have been made, the limits of the engine type haven't been fully exploited by automakers. It's been tuners who have ...

The rotary engine, with its egg-like block and triangular rotor, is an oddball even among all the other oddball engine designs—sorry, three-cylinder, twin-turbo, camless Koenigsegg, ya basic. That ...

Mazda has been the only carmaker to manufacture Felix Wankel’s rotary engine design in volume, and the design went out of production when the RX-8 left the market in 2012. The2022 Mazda MX-30 hybrid ...

Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

In this video, we address several common questions regarding the rotary vane engine and its design, including: 00:00 Introduction 04:53 Q1: Why don’t the vanes catch on the ports? 06:05 Q2: Is the ...

If you’re running an army, chances are good that you need a lot of portable power for everything from communications to weapons control systems. When it comes to your generators, every ounce counts.

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 ...

A report from TopSpeed has us musing about the future of the motorcycle community when it comes to rotary-powered engines – or if there’s even a potential for a resurgence in the cards at all. There ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Click to open image viewer. This model was submitted to the U.S. Patent Office with the application for the patent issued to Matthias Gabriel, of Newark, NJ, August 6, 1867, no. 67527. The engine ...