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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]
Norton Classic NSU_Spider_Wankel. Garside, who had been impressed by the Fichtel & Sachs engine in both the NSU Spider sports-car and a snowmobile, installed a bought-in F&S air-cooled single-rotor engine into a BSA B25 'Starfire' frame as a "proof of concept". This proved reliable and smooth, but under-powered.
Annual Mazda Wankel "rotary" engine sales 1967–2000, excluding 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 ...
In the context of the developed Wankel engine, "rotary" is something of a misnomer. The Wankel principle applied only to a "rotary piston" and not to the engine as a whole which was a stationary assembly, unlike rotary engines employed in WW1 aircraft in which the entire engine rotated about a fixed crankshaft.
The Classic used an air-cooled twin-rotor Wankel engine that had been developed by David Garside at BSA's Umberslade Hall research facility. [1] [2] [3] Garside, who had been impressed by the air-cooled single-rotor Fichtel & Sachs engine in the Hercules motorcycle, installed a bought-in F&S engine into a BSA B25 'Starfire' frame as a "proof of concept".
Snowmobiles, constituting about 4 percent of sales volume in 1972, were offered in 1973 with an optional Wankel engine costing about $235 more than the conventional motor. Though this was the United States's first introduction to the revolutionary rotary engine, OMC's hopes of success were dashed by heavy competition from other snowmobile ...
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 ...
ARV Super2 with AE110. Very closely based upon the Norton engine, the MidWest engine developed the design further. The lubrication system became a semi-total-loss system whereby Silkolene 2-stroke oil was directly injected into the inlet tracts and onto the main roller bearings, but the oil that fed the bearings became an oil-mist within the rotor-cooling air, with about 30% [4] of the oil ...