The engine is the "heart" of a car. The engines of automatic mixers in special vehicles are mainly diesel fuel. With the development of science and technology, the power of the diesel engine is increasing. Today, we will talk about the power of the mixer engine.
The power increase of diesel engine mainly depends on the supercharger. If there is no technology line driven by exhaust gas driven turbocharger, the power increase is empty talk. Because the appearance of turbocharging has changed the history of displacement determining power performance! At present, the power performance tuning of diesel engine is the performance matching problem between supercharger and engine.
The exhaust gas turbocharger uses the exhaust gas generated by the engine combustion as the power to drive the turbocharger turbine to rotate and drive the compressor impeller at the other end of the same axis to pump air into the intake management. To put it bluntly, the exhaust turbocharger is a component that uses the exhaust energy to pump air into the intake pipe force surface, and the amount of exhaust energy depends on how much oil the engine burns.
When the accelerator is small and the speed is low, the turbocharger basically does not work. Here we need to explain that the term "turbine intervention speed" refers to the speed at which the turbocharger can start to help the engine output. Before this speed, the engine is basically equivalent to a naturally aspirated engine. The larger the engine displacement with the same rated power is, the more air intake will be before or just after the turbocharger intervention. The less the engine depends on the turbocharger, and the smaller the turbocharger can be matched. The corresponding small turbocharger can better improve the low speed acceleration performance of the turbocharger.
The engine with higher rated power and smaller displacement will certainly have poorer transient acceleration performance at low speed, which is a great challenge for the matching between the supercharger and the engine. To ensure that the rated power of the engine is large enough, large turbochargers must be used, and the low speed acceleration performance of large turbochargers is not good. In order to balance the relationship between the two, the turbine intervention speed is advanced. The intervention speed is advanced, and the opening of the corresponding turbine bypass relief valve will also be advanced, so as to better protect the turbocharger from overspeed.
However, no matter what method is adopted, it can only partially improve its low-speed performance. This kind of engine has poor low-speed acceleration performance and low speed fuel consumption, and the economy of rated power output is still poor. Because the engine inflation coefficient is insufficient in the low speed acceleration phase, in order to improve the engine and turbocharger speed as soon as possible, more fuel must be supplied, which is the reason why the turbocharged engine has high fuel consumption during low speed acceleration.
That's all for the analysis on the use of mixer engine power. If you have any ideas or needs, please come to our website http://www.djkenshu.com Consult and understand!