Nissan develops improved fuel-injection system

Nissan Motor Co. has developed an improved gasoline fuel-injection system. The new system, Nissan said, uses an injector for each inlet port per cylinder, allows the generation of finer fuel mist, and makes combustion more efficient. The company said that this new injection system improves the fuel efficiency of gasoline engines by 4%. The company plans to use this technology for engine capacities of 2 liters or less and plans to launch the first engine equipped with this technology in 2010. Nissan, like most other automakers, has been working on technologies to improve the fuel efficiency of vehicles with traditional powertrains, as well as alternatively fuelled vehicles, in a bid to remain competitive ahead of stringent new emissions regulations. This latest fuel-injection system reduces the amount of unburned fuel and lowers the amount of precious metals required in the catalytic convertor to clean exhaust gas emissions. The technology, reports said, could first be used in the next-generation Micra/March B-segment model, which is due to be introduced next year. (July 15, 2009)