Manipulating the automobile engine. (Column)

Mechanical Engineering-CIME | October 1, 1993| | Copyright

For more than 100 years, engine designers have been working to achieve the highest-possible thermal efficency. In the 1870s Nikolaus August Otto of Germany built a prototype that became the pattern most automotive designers have tried to emulate.

Since then, engineers hoping to develop a new method to power automobiles have built alternatives to the Otto-cycel engine. These include steam, Stirling-cycle, and gas turbine engines. A few other engines, such as the popular diesel, the sparkignited rotary engine, and the rotary-valve engine, relate closely to Otto's ...

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