Volvo QC Four Engines Officially Launches SCR Technology in China Market

On August 27, 2011, Volvo Trucks held a grand Volvo Truck Family Day event in Beijing. Apart from presenting the brand culture of Volvo Trucks to the public, it also communicated environmental protection to the public through various interactive games to build a green home. voice. At the same time, on the day of the event, Volvo Heavy Trucks officially announced that it would respond to national environmental regulations and provide the Chinese market with engine products that meet Euro IV environmental emission standards. It is reported that the Euro IV engine of the Volvo heavy truck is equipped with an SCR exhaust gas treatment device, which has extremely high fuel efficiency and more excellent driving performance and can achieve lower emission standards. This indicates that the leading environmental protection solutions of Volvo Heavy Trucks will inject new impetus into promoting the development of energy conservation and emission reduction in China's logistics industry and commercial vehicle industry.

In the face of increasingly severe environmental protection, the 12th Five-Year Plan of China clearly categorizes energy-saving reduction as the focus of work. In the near future, a series of specific energy-saving and emission reduction comprehensive work programs have been introduced. On July 12, 2011, the Ministry of Communications issued the “Twelfth Five-Year Plan for Energy Saving and Emission Reduction of Highway Water Transportation”, which clearly stated that the overall goal of the “Twelfth Five-Year Plan” for energy conservation and emission reduction of highway water transportation is: By 2015, traffic The energy efficiency of the transportation industry has been significantly improved, the intensity of carbon dioxide emissions has been significantly reduced, and significant progress has been made in the construction of green and low-carbon transportation systems. The environmental protection department also emphasized the need to unswervingly implement the industrial policy and the state's backward production shutdown plan. This shows that it is imperative to achieve low-carbon emission reductions and enable replacement of products and technologies.

As an industry leader in environmental protection technology, Volvo heavy trucks have been at the forefront of the industry for many years. In 1972, Volvo took the lead in implementing various low-carbon initiatives in response to the greenhouse effect. Since 1985, Volvo has begun to lead the promotion and development of hybrid solutions. In 2007, Volvo became the first truck supplier to propose the use of seven renewable fuel technologies. At present, part of Volvo Truck's hybrid environmental protection products have been put into use in Europe. In Europe, Volvo Trucks has begun to implement products that meet Euro 5 emission standards. In addition, Volvo has three carbon neutral plants in Belgium and Sweden. This means that Volvo has been at the forefront of energy-saving and emission-reduction in the industry, both from technology development and production processes, and is fully prepared to share it with the Chinese market.

Euro IV products should be born

In 2006, after the implementation of Euro IV standards for tail gas emissions in Europe, the restrictions on particulate emissions and nitrogen oxides were increased by 80% and 30%, respectively. By the Euro VI stage, the nitrogen oxides of vehicles will also be based on Euro IV standards. Emissions of matter and particulate matter are reduced by about 80%. During this period, the pollution of bicycles can be reduced by 20% to 50% for each standard increase, which promotes the technical progress of the automotive industry, improves the competitiveness of enterprises, improves the quality of oil products, and promotes the upgrading of oil production technology and equipment. The replacement will eventually improve the air and environment of the city. From these perspectives, the policy effect brought about by the upgrading of emission standards is far greater than itself, and it is the improvement of the entire industry and social environment.

In China, implementation of a higher-level emission standard requires a series of supporting measures, and the Euro IV standard requires more oil products. At the same time, it needs surrounding facilities to produce effects, including the supporting facilities of neighboring cities. With the maturation of various conditions, the IV standard for heavy-duty vehicles has been gradually implemented since 2011 under the promotion of the environmental protection department, and the policy stipulates that from January 1, 2012, diesel vehicles above 3.5 tons must meet the national IV standards. .

The National IV standard is the national fourth-phase motor vehicle emission standard, which is equivalent to the Euro IV standard in Europe. The national IV standard has stricter control over the emission of motor vehicles. It is necessary to further reduce the pollutants by 30% to 50% in order to meet the national III standards. With the increasing demand from the public for environmental cleanliness, the differences in emission requirements between the Euro III and Euro IV standards are becoming more apparent. For the high requirements of environmental cleanliness, new methods are needed to reduce emissions and discharge tail gas for treatment. The launch of the Volvo Euro 4 engine in China has also responded to public opinion in accordance with national conditions.

Volvo Euro four engine technical characteristics

Volvo Euro 4 engines use SCR-Selective Catalytic Reduction technology to reduce emissions. SCR technology has been used on marine engines many years ago. SCR simply means that by adjusting the injection software and other measures to achieve better fuel consumption, an electronically controlled urea injection system is added to the exhaust system of the vehicle, through the selective catalytic reduction (SCR) process, the exhaust gas The nitrogen oxides (NOx) are converted into nitrogen and water is discharged outside the vehicle.

The SCR technology improves the safety and reliability of the engine; the fuel consumption is lower, not only conforms to the Euro IV standard, but also lays the foundation for achieving the Euro 5 standard, with less heat emission, and the price is superior to other technologies such as EGR.

Full implementation of Euro IV emission standards is still required

According to the Euro IV standard, the truck is equipped with urea 3-4% of the total oil. The car will be equipped with a urea tank, an SCR muffler and a fuel tank.

Truck Upgrade Country IV through SCR aftertreatment is a mainstream technology route, but this requires a process because domestic urea production is limited and there are no sites dedicated to urea. All urea must be obtained through the truck manufacturer's dealership. In addition, the current domestic diesel quality is generally too high in sulphur content, which also has an adverse effect on the implementation of heavy national IV emission standards. However, from an environmental point of view, medium- and heavy-duty commercial vehicles have indeed become an important factor affecting the energy-saving and emission reduction of the entire automotive industry. With the increasing awareness of environmental protection among the general public, the listing of products that meet Euro IV standards is still a general trend.

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