Diesel Turbocharger Pursues Power And Low Emission For Your Car
Until 1999, Volkswagen Company developed 3L Lupo car diesel turbocharger engine
. This engine power efficiency made the whole world astonished. The conception car adopting this type engine realized oil saving world record of 0.99L per hundred kilometers. Till then, people began to realize that diesel engine was the mainstream technology in future which was to make a splendid new era.
Diesel engine is more green and environmental protective
According to some senior car engineers introduction, high power efficiency and excellent economic performance are the biggest advantages of diesel engine, though each working recycle of diesel engine is the same with gasoline engine that needs air inflow, compression, power working and emission four courses. But because the fuel diesel engine uses is diesel, and its viscosity is tougher than gasoline, it does not easily vapor. Also for the reason that diesel self-ignite temperature is lower than gasoline, the developing and igniting method of flammable mixture gas are all different with gasoline engine.
As being understood, mixture gas in diesel engine cylinder is not ignited but compressed to burn. During diesel engine works, what enters it is gas and gas in cylinder is compressed to end with the temperature between 5000 and 7000 centigrade, pressure at 40 to 50 units. When plunger is close to the up end, high-pressure pump on engine sprays diesel to cylinder on high pressure. Diesel develops into tiny oil drop. Combining with high pressure and high temperature gas, diesel mixture gas self-burn, expand fiercely and bring explosion power, thus prompt plunger to do downward power work. At this time, temperature may reach to 1900 to 2000 centigrade, pressure to 60 to 100 units and power rate is much high. So, diesel engine is widely applied in large diesel vehicle.
The advantage of diesel engine in energy saving and carbon dioxide emission is not replaceable by all heat engine including gasoline engine by
turbocharger manufacturer. Presently, advanced small size high speed gasoline engine emission has reached Europe III criteria. It is marked with green engine'. Many newly researched European America cars all adopt diesel engine as the dynamic equipment.
Technology improvement prompts diesel engine popularity
Document reveal, diesel engine is 30 percent higher in heat efficiency compared with gasoline engine. Thus from the aspect of energy saving and fuel reduction, popularity of diesel engine car usage is of more significance. Diesel engine has the characteristics of high power efficiency, longer lifetime and better dynamic personality compared with gasoline engine. The green house effect caused by its emission is 45 percent lower than gasoline. Carbon monoxide and hydrocarbon emission is also lower. Only Netrogen oxide emission is a little higher than gasoline engine in the whole wagon usage lifetime.
Recently, diesel engine adopts turbocharger, inner cooler, direct injection, exhaust catalytic conversion and DPF technology and diesel engine vehicle emission has reached Europe III and Europe IV emission criteria. It can be predicted that with the development of technology, small car equipped with diesel engine will become a trend of car development in future.
Taxi favor energy saving diesel engine
As taxi, changing the fuel type is an efficient way to reduce operation cost. Now, the proportion of diesel car in taxi market is constantly increasing. Among newly purchased taxis, most drivers would like to choose diesel car as the replacing car type and few of them select gasoline as the fuel to operate.
Diesel engine rotates much lower and cylinder burning temperature is comparatively lower, so the failure rate is lower than gasoline engine without high pressure igniting system. Because of the low rotation speed, component abrasion is relatively slight and its usage lifetime is longer. Since diesel seldom emerge circumstance of burning and explosion, fuel leakage consequence of it is much slighter than gasoline car.
Nowadays, how to fully develop fuel efficiency and save resource has become a problem we common face. Some professional people indicate that diesel car technology daily tends to be mature nowadays, it is sure to bring great social significance and economic meaning.
by: car fans
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