Strange engine configurations that never reached production always makes for interesting reading. Here are our favorites.

The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix ...

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 ...

The latest version adds a rotary engine to its compact predecessor, with prices ranging from 4.2 million yen ($28,000) to 4.9 million yen after tax. The MX-30 Rotary-EV will arrive on the Japanese ...

With 1 used Fella Ts 671 Twin Rotor Rake machines available on Auto Trader, we have a fantastic range of farm equipment for sale across the UK.

With 1 used Kverneland 8076 6 Rotor Tedder machines available on Auto Trader, we have a fantastic range of farm equipment for sale across the UK.

The PropNoise simulation tool predicts the noise of turbofan and open rotor engines. All sources and effects of noise generation can be fully described analytically with PropNoise. The tool offers the ...

Mazda's persistent use of the rotary engine is perhaps the perfect example ... As of 2024, the Mazda6 is no longer on sale in North America. That's quite unfortunate, because it was one of ...

This paper considers the sensitivity of an open-rotor engine to variations of three operational parameters during take-off, focusing on both aerodynamics and aeroacoustics. Via a sensitivity analysis, ...

Analytical and numerical methods developed in our engine acoustics department are used to predict and evaluate engine noise. Our methods can be applied to gas turbines, open rotor concepts and fans.

The rotary engine became part of the soul of Mazda, and if it can be a bit flawed in operation, at least it has true ...

Mazda is once again manufacturing the rotary engine, but before you get too excited thinking it’ll be found in a sporty RX-7 successor, best temper those expectations. That’s because the new ...