![]() In the past, the Wankel engine has also been used in road vehicles such as motorcycles, and racing cars. However, its advantages of compact design, smoothness, lower weight, and fewer parts over the reciprocating piston internal combustion engines make the Wankel engine suited for applications such as chainsaws, auxiliary power units, loitering munitions, aircraft, jet skis, snowmobiles, and range extenders in cars. The midpoint of the rotor moves in a circle around the output shaft, spinning the shaft via a cam.ĭue to its inherent poor thermodynamics, the Wankel engine has a significantly worse thermal efficiency and worse exhaust gas behaviour when compared against the four stroke reciprocating piston engine, which is why the Wankel engine has seen limited use since its introduction in the 1960s. The rotor spins inside a figure-eight-like epitrochoidal housing, around a fixed toothed gearing. The Wankel engine's rotor, which creates the turning motion, is similar in shape to a Reuleaux triangle, with the sides having less curvature. The concept was invented and proven by German engineer Felix Wankel, and the commercially feasible engine designed by German engineer Hanns-Dieter Paschke. The Wankel engine ( ˈvaŋkəl̩, VUN-kell) is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion. Gives one power pulse per revolution of the output shaft.Produces three power pulses each revolution of the rotor.The distance between A & B remains constant.The white portion is the lobe of the eccentric shaft. ![]()
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