摘自*****
The 1.6 litre THP 150 bhp (Turbo High Pressure) 16v engine (launched on 207) launched a new family of petrol engines, the result of the co-operation between the
PSA Peugeot Citroën and
BMW Group.
The aim of this partnership is to develop petrol engines which are equipped with innovative technologies that offer high levels of performance - with low fuel consumption - at the same time as meeting the cost constraints imposed in the lower and lower-medium vehicle market segments.
Each partner has contributed the best of their skill and expertise, whether it be in engine design or in manufacturing processes.
The engine is produced at the PSA Peugeot Citroën factory in Douvrin, France.
The 1.6 litre THP engine has a sixteen valve cylinder head with two overhead camshafts and 4 cylinders displacing 1598 cc. It produces a maximum power output of 110 kW (150 bhp) at 5800 rpm.
The choice of a 4-cylinder 1.6 litre engine was made because small turbocharged engines with a high specific power output, offer a significant advantage in terms of fuel consumption over normally aspirated engines with a larger displacement. This downsizing strategy is also in line with Peugeot's HDi diesel engine strategy.
This new petrol engine uses very innovative technology and is capable of making the 207, for instance, as dynamic and enjoyable to drive as a car with a larger engine.
Its performance is evidence of this as with just the driver on board, it only takes 29.4s to cover the standing start 1,000 m and accelerates from 80 to 120 km/h in 5th gear takes only 8.2 s (in comparison, the 206 S16, despite a weight advantage, took 10.1 s). The maximum speed of 210 km/h is reached in 5th gear. The innovative technology used in this engine and the high torque output available at low engine speeds, helps reduce the fuel consumption to (7.0 l /100 km in the combined cycle compared with 7.7 l /100 km for the 206 S16) and makes it possible to reduce the CO2 emissions (166 g/km compared with 185 g/km for the 206 S16).
The THP range:
1.6l THP 150 bhp available on 207 and 308,
1.6l THP 175 bhp available on 207 RC,
1.6l THP 140 bhp with « Tiptronic System Porsche » automatic gearbox available on 308.
207CCGT150配备由PSA标致雪铁龙集团和BMW集团联合研制的1.6THP涡轮增压直喷汽油发动机,这款发动机是PSA标致雪铁龙集团在位于法国杜弗兰(Douvrin)的工厂生产的,他的集团内部代号为EP6DT。
这款发动机拥有4个汽缸,排量为1598立方厘米, 配16气门双顶置凸轮轴,在5800转/分时,最大功率可以达到110千瓦(约150马力)。增大扭矩输出和降低涡轮迟滞是这款发动机的研发重点之一,从1000转/分转速起,发动机就能够提供156牛米的扭矩,而仅仅在1400转/分时,它就可以输出最大扭矩 - 240牛米,并且一直维持到3500转/分,即使转速达到5000转/分,发动机的扭矩仍然保持在208牛米,使得装备这款发动机的车辆具有非常良好的驾驶性能,0-100公里/小时加速只需8.6秒,最高时速达到210公里/小时。
相比排量更高的自然吸气发动机,这款小型的增压发动机在油耗方面具有明显的优势。在欧洲的混合循环油耗测试中,207CC取得了7.2升/百公里的成绩,而在郊区工况下油耗更低至5.8升/百公里。
大量新技术的使用促成了上述性能的实现:
汽油直喷
进气凸轮轴末端安装有一个双活塞机械油泵,通过一根不锈钢输油管给喷嘴供油。高压喷嘴直接将燃油从侧面喷入燃烧室,最高压力达120巴。
“Twin-Scroll”涡轮增压器,
正如其名称“twin-scroll”一样,发动机的4个气缸排出的气体被分为两对,这两个脉冲式气体柱进入涡壳("scroll”), 在涡轮处直接以最佳的形式汇合在一起,可以发出最大的动力性能,同时大大提高油门反应速度,并且使得涡轮从发动机转速达到1000转/分的时候就开始增压,大大降低了增压发动机上受人诟病的涡轮迟滞现象。
连续可变正时气门(VVT)
进气端的连续正式可变气门(也称为VVT)可以保证产生最佳动力和扭矩,同时降低耗油量和污染物排放。
可变功率机油泵
机油泵可以根据不同工况提供适当的油量,能量消耗较常规机油泵要少160瓦,而且在欧洲混合循环测试中,让车辆的整体油耗降低了约1%
创新的曲轴箱设计
曲轴箱由铝合金制成,这样的设计保证了高刚性和较低的重量。
[
本帖最后由 MIOA701 于 09-08-03 09:42 编辑 ]