Motorcycle engines: Rotary engine, Wankel engine, Two-stroke engine, V-twin engine, Straight-six engine, Engine displacement, Gasoline direct injection, Motorcycle engine, Variable valve timing, VTEC, Desmodromic valve, Unit construction, Flat-twin engine

Source: Wikipedia. Pages: 82. Chapters: Rotary engine, Wankel engine, Two-stroke engine, V-twin engine, Straight-six engine, Engine displacement, Gasoline direct injection, Motorcycle engine, Variable valve timing, VTEC, Desmodromic valve, Unit construction, Flat-twin engine, Flathead engine, IOE engine, Overhead valve, Overhead camshaft, JA Prestwich Industries, Rotax, Big-bang firing order, Straight-three engine, Maico, RevoPower, Stroker Kit, GY6 Engine, Reed valve, Anzani, Turboshaft, Single cylinder engine, Motorcycle oil, Push start, Ram-air intake, Four-stroke power valve system, V4 engine, Suzuki Advanced Cooling System, Pre-unit construction, Yamaha Genesis engine, Polini, Valve float, Programmed fuel injection, Kick start, Malossi, Kramer graph, BMW M2B15, Timing retard eliminator, Barry Engine, Honda VT1100, Compression release, Oilhead, Port-map. Excerpt: The Wankel engine is a type of internal combustion engine using a rotary design to convert pressure into a rotating motion instead of using reciprocating pistons. Its four-stroke cycle takes place in a space between the inside of an oval-like epitrochoid-shaped housing and a rotor that is similar in shape to a Reuleaux triangle but with sides that are somewhat flatter. This design delivers smooth high-rpm power from a compact size. It is the only internal combustion engine invented in the twentieth century to go into production. Since its introduction the engine has been commonly considered rotary engine, though this name is also applied to several completely different designs. The engine was invented by German engineer Felix Wankel. He received his first patent for the engine in 1929, began development in the early 1950s at NSU Motorenwerke AG (NSU), and completed a working prototype in 1957. NSU then licensed the concept to companies around the world, which have continued to improve the design. Thanks to their compact design, Wankel rotary engines have been installed in a variety of vehicles and devices such as automobiles (including racing cars), along with aircraft, go-karts, personal water craft, chain saws, and auxiliary power units. The most extensive automotive use of the Wankel engine has been by the Japanese company Mazda. First DKM Wankel Engine DKM 54 (Drehkolbenmotor), at the Deutsches Museum in Bonn, Germany First KKM Wankel Engine NSU KKM 57P (Kreiskolbenmotor), at Autovision und Forum, GermanyIn 1951, the German engineer Felix Wankel began development of the engine at NSU Motorenwerke AG, where he first conceived his rotary engine in 1954 (DKM 54, Drehkolbenmotor). The so-called KKM 57 (the Wankel rotary engine, Kreiskolbenmotor) was constructed by NSU engineer Hanns Dieter Paschke in 1957 without the knowledge of Felix Wankel, who remarked "you've turned my race horse into a plow mare". The first working prototype DKM 54 was running on February 1, 1