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X-engine cycle The red line is a three lobe epitrochoid, which is the shape of the LiquidPiston's swept volume. The X-engine is a type of pistonless rotary engine manufactured by LiquidPiston of Bloomfield, Connecticut. The X engine is a hybrid cycle rotary engine.
Another motorcycle with a rotary engine was Charles Redrup's 1912 Redrup Radial, which was a three-cylinder 303 cc rotary engine fitted to a number of motorcycles by Redrup. In 1904 the Barry engine , also designed by Redrup, was built in Wales: a rotating 2-cylinder boxer engine weighing 6.5 kg [ 3 ] was mounted inside a motorcycle frame.
The Wankel engine is a type of rotary piston engine and exists in two primary forms, the Drehkolbenmotor (DKM, "rotary piston engine"), designed by Felix Wankel (see Figure 2.) and the Kreiskolbenmotor (KKM, "circuitous piston engine"), designed by Hanns-Dieter Paschke [2] (see Figure 3.), of which only the latter has left the prototype stage ...
Reciprocating piston engines are by far the most common power source for land and water vehicles, including automobiles, motorcycles, ships and to a lesser extent, locomotives (some are electrical but most use diesel engines [16] [17]). Rotary engines of the Wankel design are used in some automobiles, aircraft and motorcycles.
Similar to U engines, H engines consist of two separate flat engines joined by gears or chains. H engines have been produced with between 4 and 24 cylinders. An opposed-piston engine is similar to a flat engine in that pairs of pistons are co-axial but rather than sharing a crankshaft, instead share a single combustion chamber per pair of ...
A pistonless rotary engine replaces the linear reciprocating motion of a piston with more complex compression/expansion motions with the objective of improving some aspect of the engine's operation, such as: higher efficiency thermodynamic cycles, lower mechanical stress, lower vibration, higher compression, or less mechanical complexity.
The ramjet engine was designed by French engineer René Leduc. 1957: The first working prototype of the pistonless Wankel engine (sometimes called a rotary engine) is built by German engineer Felix Wankel. 1957: First usage of electronic fuel injection (EFI) in a production passenger car, using the American Bendix Electrojector system.
The main cause of Wankel Diesel engine infeasibility is the shape of the combustion chamber, located in the rotary piston. It is elongated and convex, thus not allowing a high enough compression ratio (without too much heat loss), [7] even in combination with a (solely crankshaft or exhaust gas driven) supercharger.