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现代轿车降低燃油消耗量的最有效、而对用户价值不起负面影响的方法就是长期坚持实施轻量化的技术,但是,尤为重要的是发动机本身效率的改善。为此,奥迪(Audi)公司为其未来的 S1(Spark Ignition)火花点火发动机精心开发了FSI(Fuel Spray Injection)燃油雾化喷射技术。此外,燃油消耗量的显著降低,使这些直接喷射的 SI 发动机展现出的 WOT 节气门大开时的扭矩大幅提高给人们以深刻的印象,还有汽车的动力学性能方面也大为改善。在2003年,奥迪公司以其2.0升4气门 FSI 燃油雾化喷射发动机的完全创新的发动机概念投入生产。这种新概念是专门为直喷式 SI 火花发动机的要求而开发的。和这种新发动机一起,还有为数众多的新技术第一次投入批量生产。这些新技术如:全世界首创的空气—导向的燃烧系统(Air-guided combustion system)、持续控制的翻滚(搅拌)(Tumble)系统、可按需控制的1个活塞的高压燃油泵和一种数字 NOx 传感器等。由于气缸盖是全新设计的,因此,在以低油耗的部分负荷运转和高效率的 WOT 节气门大开的运转之间不存在需要互相让步的问题。新的奥迪2.0升、4气门 FSI 燃油雾化喷射发动机,以其部分负荷时很低的比油耗数值(Specific Fuel Consumption Volues)为大量生产的 SI 火花点火发动机确立了一项新标准。另外,在 WOT 节气门大开运转时,其最大扭矩达200Nm,并能稳定保持在3250～4250r/min 之间。因此,新的 FSI 发动机以其优异的性能,在其所有竞争对手中名列前茅。
Modern cars to reduce fuel consumption, the most effective way, and the user does not have a negative impact on the value of long-term adherence to the implementation of lightweight technology, but, of particular importance is the improvement of the efficiency of the engine itself. To this end, Audi has carefully developed FSI (Fuel Spray Injection) fuel atomization jet technology for its future Spark Ignition spark ignition engine. In addition, significant reductions in fuel consumption have greatly impressed the dramatic increase in torque at the wide open WOT throttle shown by these directly injected SI engines, as well as the significant improvement in the kinetic performance of the vehicle. In 2003, Audi was introduced with its completely innovative engine concept of a 2.0-liter, four-valve FSI fuel atomizer injection engine. This new concept was developed specifically for the requirements of direct injection SI spark engines. Along with this new engine, there are a large number of new technologies for the first time in volume production. These new technologies include the world’s first Air-guided combustion system, a continuously controlled Tumble system, a 1-piston high-pressure fuel pump that can be controlled on demand and a Digital NOx sensor and so on. Since the cylinder head is newly designed, there is no need to compromise between partial-load operation with low fuel consumption and high-efficiency WOT throttle wide-open operation. The new Audi 2.0-liter, four-valve FSI fuel-atomizing injection engine sets a new standard for its mass-produced SI spark-ignition engines with its partially-loaded Specific Fuel Consumption Volues. In addition, the WOT throttle wide open operation, the maximum torque of 200Nm, and can be maintained at 3250 ~ 4250r / min stable between. As a result, the new FSI engine is among the best of its competitors with its superior performance.