Correct Mixtures for Otto Engines 700884

The objective of this paper is to change a prevailing view on what is a correct mixture ratio for otto engines and to correct a malpractice that grew out of it. Differentiation between “best power” and “best economy” mixtures were found illusory. The wedge charts proved very useful for a clear understanding of the intricate relations.
The origin of the misconceptions is traced in the history of the internal combustion engine.


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