A evolução dos motores

Abstract

This study is an approach on " The evolution of engines." To do so, I overhold the development of engines and their short history until the advent of electronic diesel engine,( c combustion engines internacom their classifications, definitions, especially those of four-stroke engines and two-stroke. I addressed the management of the engine with regard to its supply system and I spoke out about the engines of ships and boats. Finally, I drew up a profile on the Common- Rail systems and HCCI and thereby about the electric propulsion engines, very common existing nowadays. The study concludes that new systems are in updated phase of implantation, such as nuclear power plants for naval use, gas turbins, the quasiturbins, etc., looking toward the advantage of increasing power and provide greater torque at low revolutions, in addition to reducing fuel consumption, the levels of noise and pollutant emissions, improving the performance of ships and boats.