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A cranky, self-taught engineer with an honorary doctorate awarded years later who didn’t drive owing to poor eyesight, Felix Wankel dreamed up the rotary engine’s guiding principles in the ...
The Wankel engine (/ˈvaŋkəl̩/, VUN-kell) is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion. The concept was proven by German engineer Felix Wankel, followed by a commercially feasible engine designed by German engineer Hanns-Dieter Paschke. [1]
Outdated annual Mazda Wankel "rotary" engine sales without RX-8 and without industry engines (data source: Ward's AutoNews) Mazda was fully committed to the Wankel engine just as the energy crisis of the 1970s struck. The company had all but eliminated piston engines from its products in 1974, a decision that nearly led to the company's collapse.
Under "Pistonless rotary engine" there is a discussion of the disadvantages - primarily sealing problems, perhaps that could be incorporated here, or the pages could be merged. What is the weakness? The only wankel engine who has problems with the apex seals is the NSU Ro80. Constructional defect, wrong material choice and unsatisfactory testing.
1972 GM Rotary engine cutaway shows twin-rotors. Popular Science magazine in the May 1972 article "GM Rotary Engine for the 1974 Vega", an illustration of the Wankel installed in a 1974 Vega hatchback showed a different grille, a lower, more sloped hood line, and a "GM Rotary" badge and Wankel crest on the rear quarter panel. They stated the ...
Rear view. The NSU Ro 80 is a four-door, front-engine executive sedan manufactured and marketed by the West German firm NSU from 1967 until 1977. [1]Noted for innovative, aerodynamic styling by Claus Luthe and a technologically advanced powertrain, the Ro 80 featured a 84 kW (113 bhp), 995 cc (60.7 cu in) twin-rotor Wankel engine driving the front wheels through a semi-automatic transmission ...
The Wankel engine's problems are being eradicated – frankly, this is impossible, because it would require reshaping the combustion chamber and reducing the surface by converting the Wankel engine into a reciprocating piston engine. There is not a single source that describes how the Wankel engine can be designed to have a decent fuel ...
Compared to piston engines, rotary engines are smooth, light, and compact with high power relative to displacement. Although these attributes are highly beneficial to motorcycles, Wankel-engined bikes remain something of a rarity, even though the rotary engine had once been touted as the future of motorcycling.