The FSI engines sold in the North American market also eliminated the stratified injection function, but they also changed the definition of fuel stratified injection to direct fuel injection to reflect the technical difference of the stratified injection function. The domestic website still uses fuel stratified injection as a highlight.
However, the elimination of the stratified injection function is not only in the Chinese market, but the FSI engine sold in the North American market also retains only the in-cylinder uniform injection function. The reason is that although the lean combustion formed by the stratified injection can save fuel, it will cause excessive NOx and nitrogen oxides. Although the three-way catalyst can effectively convert NOx oxynitride, the high-sulfur gasoline is three-way catalyst. There are side effects that affect the catalytic efficiency. As a result, NOx NOx emission exceeds the standard. In summary, fuel composition and emission standards are key factors influencing the elimination of stratified injection.
Although the lean combustion formed by the stratified injection can save fuel, it will cause excessive NOx and nitrogen oxides, while the high-sulfur gasoline has a side effect on the three-way catalyst. As a result, NOx NOx emission exceeds the standard. Therefore, fuel composition and emission standards are key factors influencing the elimination of stratified injection.
Unlike the confusing TSI naming of domestic exchanges, the FSI engine sold in the North American market still retains its name, but the interpretation and media campaign has changed from the original FuelStratifiedInjection to FuelStraightInjection. To reflect the technical differences in eliminating the layered jet function.
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Industrial steel structure buildings have a wide range of uses, and the high cost performance is worth choosing!
Industrial steel structure buildings are used in various industries, and their construction is convenient, and different steel structure buildings can be designed, which can also meet the needs of daily factories. Let's introduce the specific advantages of using steel structure buildings.
Wide range of uses
The scope of application of industrial steel structure buildings is still very wide. In addition to the use of factories as Steel Structure Workshop, some daily storage centers use Steel Structure Warehouse as warehouse, as well as gymnasiums, dormitories, etc., are actually buildings that can use steel structures. And not only the ground floor can be built, as long as the design is reasonable, then high-rise and multi-storey buildings can be constructed and applied.
Simple construction
Compared with traditional building construction, the construction of the steel structure itself is very simple, and all components are prefabricated and have certain standard sizes, which can be installed directly. The construction efficiency is high, and the construction of the plant can be completed in a short time. And generally it can be directly spliced, which greatly shortens the construction time, and the construction of large-scale buildings can be completed in less than one month.
High durability
Industrial steel structure buildings can be used for a long time, not just temporary use for a month or two, and the stability of the steel structure is also guaranteed. Moreover, the daily maintenance of the building is simple, and the design and construction of the building can be completed directly through computer design. Even if it is used in bad weather, there will be no problems, and it is suitable for long-term use.
beautiful and practical
Steel structure buildings come in many different colors, and manufacturers can also provide customized processing services. The design of the building is simple and beautiful, and it can also be decorated internally. Such a building has strong flexibility in use and can meet the requirements of different projects for long-term use.
Cost discount
Industrial steel structure buildings are light in weight, and the price of steel structures is favorable, and the cost performance is still good. Because of the high construction efficiency of its buildings, labor costs are also very cost-effective. It only needs to complete the design and construction, and the building can be put into use immediately, and the overall cost performance is also good.
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