Under the dome, coal, oil, steel, and motor vehicles are the source of fog and haze under the dome. As one of the main sources of PM2.5 pollution, engineering machinery is also hard to blame. Therefore, the responsibility of energy saving and emission reduction is great and the pressure is huge.
The protection of the ecological environment is a great cause in which the work is in the contemporary era and benefits for a long time. It is also a common cause of the whole nation and the whole society. For the construction machinery enterprises, it is the responsibility to provide more environmentally friendly, greener and more energy-efficient products. With the implementation of the four emission standard of motor vehicle diesel engine and the three emission standard of non road mobile machinery country, the Chinese engineering machinery industry has also started a new round of renewal and replacement in the environment of environmental protection, which is the blue water blue. The day made an effort.
China's motor vehicle diesel engine four standard has been formally implemented in January 1, 2015 after three delays. The emission standard is equivalent to the euro four emission standard.
Instead of the road diesel engine, the three emission standards are implemented. From October 1, 2014, all non road mobile mechanical diesel engines approved for exhaust emissions must meet the three requirements of the country.
Since October 1, 2015, we have stopped manufacturing and selling second stage non road mobile mechanical diesel engines.
Since April 1, 2016, we have stopped manufacturing, importing and selling non road mobile machinery equipped with second stage diesel engines.
After 2014, the four standard of motor vehicle diesel engine has been basically upgraded to the four standard of the country, and the emission of pollutants has been greatly controlled.
Instead of the road diesel engine, China's construction machinery enterprises actively respond to the call for the upgrading of the emission standards. From the date of the introduction of the regulations, the three emission standard products have begun to be updated. In 2014, Shanghai BMW exhibition, Cummings, Fiat, Weicai, Yulai and other major engine manufacturers, as well as Komatsu, Xugong, 31, China Federation, Dou Shan and other manufacturers have launched to meet the country's three emission standards of excavators, loaders and other new products, not only in the emission of emission reduction, in performance has a large number of Promote.
Policies and regulations promote standard upgrading technology
Looking at the world, the United States has started implementing the Tier4 emission standard on non road emission standards, and the EU is also implementing the euro four emission standard. There is still a big gap between China's emission standards and international standards.
It is understood that the upgrade of engine emission standards is implemented under the impetus of national policies and regulations. Engine upgrading will increase the cost of production and operation. Only under the situation of compulsory implementation of the state, the standard upgrade can be truly implemented.
Where is the gap between domestic and foreign engine technology
At present, the commonly used auxiliary engines in China's construction machinery products are mainly foreign brands such as Cummings, doez, Pt, suzu and Yanmar. The domestic engine brands are mainly Weichai, Yuchai and Chai. Almost all of the supporting engines used for high-end products, export equipment, large tonnage equipment and excavators are foreign brands.
In the non road engineering machinery engine, the engine enterprises generally adopt the EGR post-processing emission reduction technology and the electric injection high pressure common rail oil supply technology to achieve the goal of reducing emission. There have been sufficient technical accumulation in the implementation of emission reduction technology at home and abroad.
The gap between the two is mainly in the field of technical theory, manufacturing level and engine test verification. Foreign engines have already had more than 100 years of research and development history, rich experience and abundant technology, which are incomparable to domestic enterprises.
And domestic engine enterprises are also disparate with foreign enterprises in the production line construction, mechanical processing, casting level, size control and other processing and casting, which leads to the lack of precision. In addition, engine validation is also not strict abroad, and product stability is lacking.
Remanufacturing becomes a hot spot
The remanufacturing engine can be processed directly through the "blank" of the parts of the original machine, so that the value of 80% is restored. The raw materials and the raw materials have not been saved, and the raw materials and energy are saved, and the requirements of environmental protection and energy saving are very conformed to.
For customers, choosing remanufacturing engines can avoid waste of resources caused by vehicle scrapping, meet the emission demand, and contribute to green environmental protection.
Under the dome, everyone shares a blue sky, breathing and sharing fate together. How to watch the blue sky is not the "personal grudge" of Jing Chai and the haze. All people should act and exert their own strength. China's construction machinery industry will continue to play a greater role in the road of energy saving, emission reduction and haze, and let more green dynamic and green products run in the south of the country. North.
