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近年来,达夫、斯堪尼亚瓦毕斯、雷诺/贝利埃、曼、戴姆勒——本茨和道依茨等欧洲载重汽车制造厂都在进行“经济发动机”的研究,特别是在发展重型长途运输车用的新型柴油机时,通过与众不同的特性曲线以寻求和得到低油耗。新型大扭矩柴油机的特征是带有废气涡轮增压器和中冷器。这种柴油机与16档变速器连接,具有使工作转速大大下降的扭矩特性。新型发动机比1973年的传统自然吸气发动机的定矩平均油耗减少14％。对于总重38吨的长途载重汽车来说,研制的目标是40升/100公里。下面介绍这方面的发展趋势。
In recent years European research institutes such as Duff, Scania Waibs, Renault / Bailee, Mann, Daimler-Benz and Deutz have been conducting “economic engines” In the development of new heavy-duty trucks for the new diesel engine, through the distinctive characteristics of the curve to seek and get low fuel consumption. The new high-torque diesel features an exhaust turbocharger and intercooler. This diesel engine is connected to a 16-speed transmission and has a torque characteristic that significantly reduces operating speed. The new engine has a 14% reduction in average fuel consumption over the traditional naturally aspirated engine in 1973. For long-haul trucks weighing a total of 38 tons, the target for development is 40 liters / 100 kilometers. The following describes the development trend in this area.