The Development Of High Duty Diesel Engine With CR System

Too much influence with heavy duty vehicle engine while considering the emission level, so it's important work to decrease the actual emission of heavy duty vehicle engine.In order to reach Chinese III emission regulation in China, that means more work should be done with less time.With released Chinese III emission regulation, all heavy duty vehicle engines should satisfy the requirement of Chinese III before 2008, they have to improve the fuel injection system, combustion system, air intake system, after treat system, and try to decrease oil consumption. Anyway,Most manufacturer must enhance to cooperate with advanced foreign RD group, especially in electrical control fuel injection system, so that to catch best technology to fit the requirement of emission regulation and market. At the same time, all of them will have to train more and more engineers to get ability to catch future.On the other hand, emissions of engines with Chinese III application running with high sulfur fuel maybe can not reach the requirement. The engine manufacturers can not solve all problems obviously, so the fuel suppliers should take measurements soon.It's necessary to use electrical fuel injection system for all heavy duty vehicle engines. There are three kinds of injection system for Chinese III engine, one is unit pump system(EUP), one is unit injection system(EUI), other is common rail system(CRS). All of them will be applied in Chinese market in future, but the CRS is favorite, the reason is that no need to modify current engine's main parts. It's obvioulsly that will save much cost compared to match EUI or EUP in current product lines.In the file, the written try to describe the method how to reach Chinese III, include: which fuel system is better, how to improve combustion system ,how to decrease oil consumption, how to improve air intake system, and so on.