Precautions for diesel engines
【Summary Description 】At present, the problems existing in the use of diesel vehicles are caused by the lack of technical level, rather than the essential problems of diesel engines, which can be solved through technological progress.
At present, the problems existing in the use of diesel vehicles are caused by the lack of technical level, rather than the essential problems of diesel engines, which can be solved through technological progress.
First of all, all kinds of power have their proper position and timing of development. It is backward not to start research and development of new technologies such as gas fuel vehicles, hybrid vehicles, electric vehicles and fuel cell vehicles, but it is wrong to unilaterally emphasize the possibility of a large number of short-term promotion, even in opposition to the normal development of conventional power. Second, the gas fuel engine should be evaluated in two. Although gas-fueled engines can better meet the current emission requirements and are of great significance to the adjustment of the energy utilization structure, the total amount of hydrocarbons (mainly methane) emitted by natural gas engines is higher than that of diesel, and they are meeting Euro IV emission standards. Z will also encounter many difficulties. Third, emissions and energy conservation are equally important, and the two should be considered comprehensively. Energy conservation is not only to save oil resources, but also an important environmental protection issue. Taking the current international concern about emissions is the global greenhouse effect problem as an example, diesel engines have low fuel consumption and carbon dioxide emissions are much lower than gasoline engines, which can reduce greenhouse gas emissions by more than 45%.
1. Key component technology: such as oil pump nozzle and booster intercooling technology.
Fuel quality: Good quality low-sulfur diesel is a prerequisite for diesel engines to meet increasingly stringent emission regulations.
3. Electronic control technology: Diesel engine electronic control technology is very important to optimize and improve the overall performance of the engine.
4. Key technologies for emission aftertreatment: such as exhaust gas recirculation (eg r) technology, particulate capture technology, and n o x catalytic conversion technology.
5. Machine development and matching technology: such as diesel engine fuel, intake and combustion system matching and optimization technology, heavy-duty vehicles and cars with diesel engine technology.
6. Diesel engine manufacturing, technology and material technology.
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