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As an effect of this, the Wankel engine has slow and incomplete combustion, which results in high fuel consumption and bad exhaust gas behavior. [123] Wankel engines can reach a typical maximum efficiency of about 30 percent. [126] In a Wankel rotary engine, fuel combustion is slow, because the combustion chamber is long, thin, and moving.
The Renesis won International Engine of the Year and Best New Engine awards 2003 [26] and also holds the "2.5 to 3 liter" (note that the engine is designated as a 1.3–litre by Mazda) size award [27] for 2003 and 2004, where it is considered a 2.6 L engine, but only for the matter of giving awards.
The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorized by the number of rotors present. Gas turbine engines are often categorized into turbojets ...
Although Mazda is well known for their Wankel "rotary" engines, the company has been manufacturing piston engines since the earliest years of the Toyo Kogyo company. Early on, they produced overhead camshaft, aluminum blocks, and an innovative block containing both the engine and transmission in one unit.
This is geometrically an inverted Wankel engine that operates on the high-efficiency hybrid cycle. [1] [2] In the Wankel, the only successful pistonless rotary engine to date, a figure-eight-like epitrochoid housing surrounds a curved sided triangular rotor. The rotor revolves around a fixed gear in a hula-hoop motion. The output shaft revolves ...
The Mercedes-Benz M 950 is a prototype Wankel rotary engine made by Daimler-Benz. It was first described in Wolf-Dieter Bensinger's 1969 essay Der heutige Entwicklungsstand des Wankelmotors, published in January of 1970. [1] The engine was developed by Daimler-Benz's Wankel engine department, headed by Bensinger.
On September 24, 1974, Ed Cole postponed the Wankel engine, ostensibly due to emissions difficulties. He retired the same month. [7] The rotary's emissions problem was mentioned with no specifics. GM admitted fuel economy for the rotary was sub-standard and postponed production in favor of further development.
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