Portrairt of Germa engineer Nikolaus August Otto
Numéro d’image : 11830321
| Nikolaus August Otto (1832-1891),the German engineer who effectively devised the four-stroke internal combustion engine. Although he lacked conventional engineering experience,Otto became fascinated by the gas engine devised by E. Lenoir. In 1876 he described a system usually called the Otto cycle,which involves four phases; the induction,compression,ignition and exhaust strokes. This four-stroke gas engine was quiet and fairly efficient. It was further developed for use with gasoline (petrol) vapour and air,using a carburettor to control the mixture,and improved ignition systems; the resulting engine was well suited for the motor car | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library |
| Taille de l’image : | 3472 px × 5043 px |
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