Complete burn.

• Autores: Mark Fischetti
• Localización: Scientific American, ISSN 0036-8733, Vol. 290, Nº. 4, 2004, págs. 98-99
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • This article focuses on how engines work. The carburetor worked well enough but struggled to finely control the fuel-to-air ratio or even to deliver gasoline equally to each cylinder, limiting fuel economy and creating pollutants and rough engine operation. By the late 1970s electronics came along that could master fuel delivery. The gasoline burned much more uniformly: fuel efficiency and power output rose, and emissions fell. Gasoline vaporizes better than it does in port fuel-injection systems, raising power output, and the injection timing allows the engine to run on a very lean air-fuel mixture, enhancing fuel economy. Diesel engines get much greater mileage than gasoline engines because diesel fuel harbors about 12 percent more potential energy than gasoline.