The Solution Research To The Emission Criterion Improvement Of Automobile Diesel Engine In Our Nation

2008 is a special year for China Automotive Diesel Engine enterprise. The execution of the Chinese emission control standards three indicated that China's automotive diesel engine went into the era of electronic control. In the face of escalating diesel vehicle emission standards and financial crisis, a lot of automotive diesel engine enterprises are going into a difficult situation.The paper analyses the difficulties faced by automotive diesel engine enterprises as well as the problem that goes with escalating emission standards. It analyses automotive diesel engine emission control standards in and out of our country and emission standards' trends. The paper studies the schemes that can be used in the escalating diesel engine emission standards from in-machines and out-machines purification in automotive diesel emission control technology. In the emission control measures, it focuses on core technology in automotive diesel engine fuel that is injection technology. The paper cites several advanced automotive diesel engine fuel injection system and it studies on current situation of the China automotive diesel engine fuel injection system and application. At last, the paper does research on the products that meet Chinese emission control standards three based on the situation of our country's automotive diesel's development. It studies on China's automotive diesel standard enterprises' coping strategies facing with the upgrading of the emission standard. Confronted with the European emission standard four, it analyses the choices that other countries do and gives out the suggestion that our country should do according to China's national conditions. It discovers the problems that our countries' automotive diesel engine companies have to solve. That is they are short of advanced electronically controlled fuel injection system, standards for diesel fuels in our country restricting seriously the development of automotive diesel engine emission control level and the serious financial crisis make many automotive diesel engine business going into trouble.The paper suggests that our country should carry out related forced fuel standards firstly on how to solve automotive diesel emission controlling. Then the automotive diesel enterprises should strengthen diesel engine electronic fuel injection system research efforts to meet the emission standards' escalation. At last, faced with the serious financial crisis, the fuel standards' lag and the shortage of core technology, it is harmful for China's automotive diesel engine enterprises when escalating of the emission control standards rapidly. And it proposes to delay the implementation of Chinese emission standards IV.