If the engine backfires, the sudden pressure in the intake manifold forces the valve back.
如果发动机回火，进气歧管骤增的压力就迫使阀门向后移动。
The function of exhaust diffuser is to transform part of momentum energy of exhaust gases from engine into pressure energy to simulate actual exhaust back pressure and environment pressure.
排气扩压器的作用是将发动机排出燃气的部分动能转换成压力能，真实模拟发动机排气反压和环境压力条件。
But because of reduced injection timing and increased exhaust back pressure, the BSFC of the engine will be increased of 8%.
但由于提前角减小，排气背压增大，发动机燃油消耗率上升8%左右。
In this system the crankshaft rotating Angle, where the peak combustion pressure occurs, is taken to be a feed back signal, so that the ignition timing of the engine is able to be controlled.
该控制系统利用最高燃烧压力点的曲轴转角作为反馈信号，实现其对发动机点火正时的控制。
1 large exhaust — reduced exhaust back pressure, low torque will decline, engine exhaust will due to ultra high temperature burning simple.
改大排气——降低了排气回压，低扭会下降，发动机排气门将会由于超高温度简单焚毁。
1 large exhaust — reduced exhaust back pressure, low torque will decline, engine exhaust will due to ultra high temperature burning simple.
改大排气——降低了排气回压，低扭会下降，发动机排气门将会由于超高温度简单焚毁。
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