Jun/Jul 2008

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In the Beginning

By Wayne Grenning

34 Redway Street, Grand Island, New York 14072.

Probably the most historically significant engine ever in production was the Otto-Langen atmosphere engine, designed and produced by Nicolaus Otto and Eugene Langen between 1864 and 1878. It was an important stepping stone for the introduction of the 4 stroke cycle engine later developed by Otto in 1876 (see fig. #1). Several unique mechanisms appeared in this engine. Most famous was the overriding, or roller-wedge clutch that engaged only the downward movement of the piston and rack assembly, which resulted with the spinning of the main shaft and flywheel (see photo #2). Secondly, the free piston concept: where the piston movement was independent of the main shaft. As the engine fired, the piston was allowed to travel as far as the explosion carried it. The rack, connected to the piston in conjunction with a gear, housing the d...

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