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最近,英国发明了一种高速高效的新型柴油机。据称这种排量为2L的发动机比普通汽油发动机所消耗的燃料少40％,而性能方面却比普通柴油机高15％,因而可以达到节油的目的。 一般地说,普通的汽车发动机都有一个“预燃室”,初始燃烧在预燃室内进行。而该种高速高效的新型柴油机是采用燃料和空气混合体直接注入燃烧室的方法。燃料和空气混合体在燃烧室里产生涡流,从而迅速地混合燃烧,致使发动机速度高达4000r/min以上。在这样高速运转的状况下,该种新型柴油机的效率比普通发动机高15％左右。
Recently, the United Kingdom invented a new high-speed and efficient diesel engine. It is said that this displacement of 2L engine 40% less fuel than conventional gasoline engines, while the performance is 15% higher than the average diesel engine, which can achieve the purpose of fuel-efficient. In general, an ordinary car engine has a “pre-combustion chamber” in which the initial combustion takes place. The new high-speed and high-efficiency diesel engine is a direct injection of fuel and air mixture into the combustion chamber. The fuel and air mixture creates eddy currents in the combustion chamber, rapidly mixing and burning, resulting in engine speeds as high as 4000 rpm. In such high-speed operation, the new diesel engine is about 15% more efficient than a conventional engine.