Wankel rotary engines use a triangular rotor spinning ... Traditionally, apex seal manufacturers employed a variety of materials ranging from cast iron to fiber-reinforced ceramics with varying ...

Small, ultra-fast, primary and “afterburner” secondary combustion events promise to deliver brake thermal efficiency as high ...

Air is drawn in via carburation or fuel injection through the front half of the engine, where it is squeezed down and compressed to 200-300 psi (13.8-20.6 bar) – very much like a compressor ...

Rob Dahm, notorious rotary-powered car builder ... Even with its lightweight materials, the engine still weighs in at a hefty 830 lb (376 kg) or so. A fair bit more than the usual 680-750 lb ...

The theory of the Wankel engine goes back to 1954 when Dr. Felix Wankel of Germany patented the epitrochoid principle of using a three-pointed rotor inside a two-lobe casing, thereby using rotary ...

The rotary engine has been a Mazda staple since 1967. It powered one of the most famous and eccentric Japanese sports car line-ups, the RX-series, until 2012 when Mazda discontinued pure rotary ...

With the incorporation of higher quality interior materials and design ... but emissions-challenged, Wankel rotary engine is symbolic of this unique approach, as is its focus on distinctive ...

Rotary engines have an aura of cool. In games of Top Trumps, the V12 might have been king, but a rotary was a joker, a wild card. A lack of mainstream success no doubt contributes; there are ...

While many of the engines popular today are engineering marvels, the designs and ideas of years past can be even more interesting engineering case studies. Case in point: the Gnome Omega rotary ...

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 built us big turbo rotaries, four-rotor engines ...

Dahm's latest project is to swap an NA Miata's four-cylinder out for a compact rotary engine. But unlike other rotary swaps, that usually use a 13b dual-rotor out of an RX-7, Dahm is using just a ...