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Find out how technology from Duke Engine in car increases the efficiency of the internal combustion engine.
duke engine running New Car Mad Engines
this video is a duke engine test for sound and dyno and of course also of powered car
10 Best Sounding Flat Engines
John Garvey talks about the development of Duke Engines' four-stroke axial piston engines, and explains the advantages and potential uses for these revolutionary small, yet powerful engines.
this engine is cam with a Axial Piston:
Axial engines (sometimes known as barrel or Z-crank engines) are a type of reciprocating engine with pistons arranged around an output shaft with their axes parallel to the shaft. Barrel refers to the cylindrical shape of the cylinder group (result of the pistons being spaced evenly around the central crankshaft and aligned parallel to the crankshaft axis) whilst the Z-crank alludes to the shape of the crankshaft.
Duke Engines sound
The key advantage of the axial design is that the cylinders are arranged in parallel around the output/crank shaft rather than at 90 degrees as in crankshaft engines. As a result it is a very compact, cylindrical engine, allowing variation in compression ratio of the engine while running. In a swashplate engine the piston rods stay parallel with the shaft, and piston side-forces that cause excessive wear can be eliminated almost completely. The small-end bearing of a traditional connecting rod, one of the most problematic bearings in a traditional engine, is eliminated. An alternate design, the Rand cam engine, replaces the plate with a sine-shaped cam.