State III diesel engine subdivision development

It has been one year that China has fully implemented State III emission standards in the commercial vehicle sector. Previously, the State III technology route was identified as electronically controlled pump nozzles, electronically controlled high pressure common rails, and electronically controlled monomer pumps, among which the electronically controlled pump nozzles were mainly used In the diesel engine field, the commercial vehicle diesel engine adopts the latter two technologies. Until CNHTC launched an in-line pump EGR route, which was confirmed by the former National Development and Reform Commission and the Ministry of Environmental Protection. This technology was later widely referred to in the industry as "SARS" technology. Yuchai, Weichai, Dachai, Xichai, and Dongfeng Cummins , Yangchai, etc. have also started the development of EGR type III diesel engine, and began to put on the market at the end of last year. Except for Sinotruk, the EGR models of other factories did not pass the production consistency review of the Ministry of Environmental Protection.

In the past year, various national III technology routes have been fully implemented for different types of vehicles under different road conditions. From the statistics of production and sales statistics for the various company III standard diesel engines, electronically controlled high pressure common rails and EGR “SARS” have been formed. , Electronically controlled monomer pump tripod, with electronic control of the combination of pumps to supplement the pattern. Among them, EGR "SARS" is the most controversial, the fastest, the largest number of manufacturers, and its overall size will be comparable to that of high-pressure common rail models after one year.

All kinds of State III technical line diesel engines have stood the test of the market in the fierce contest and controversy, accumulated very meaningful data, and also exposed some problems that need to be resolved urgently, for in-depth study of the national III market and towards higher emission standards Efforts laid the foundation.

Yuchai

Judging from the technical route of the National III emission standards, Yuchai Diesel Engine includes electronically controlled high pressure common rails, electronically controlled monomer pumps, electronically controlled combined pumps, and the EGR SAR and other technical routes. It is one of the companies that actually adopts the highest technology route of State III. . Among them, there are YC4G, YC6G, YC4E, YC4F, YC4W, YC6J, YC6L, YC6M, YC6A, YC6K, and YC6L, YC6G, and YC6M. YC6A, YC4G, YC4E, YC4D; YC6G, YC4E are used for the electric control combination pump; YC6L, YC6G, YC6M, YC4G, YC4E etc. are used for the EGR atypical route.

In Yuchai's various national standard III diesel engines, electronically controlled high pressure common rails are the main technical route. Among them, the YC4F series of small-displacement diesel engines used in light-duty trucks, microbuses, and SUVs have the highest sales, followed by YC6G, YC4G, and YC6M. In addition to the electronically controlled high pressure common rail, Yuchai's electronically controlled monomer pump diesel engine sales are also relatively large. Yuchai State III diesel engine also has a technology, which is an electronically controlled combination pump system supported by Chengdu Witton Company. This technology has a low cost and little change to the structure of the diesel engine. Dachai, Dongfeng Cummins, and Wuxi Sida are all organic. This type of device is used by Yuchai and Yuchai is equipped with YC6G and YC4E diesel engines.

The sales of major models of Yuchai III during January-July 2009 are shown in the right figure. From the relevant statistical data of Yuchai, we can see that the technology used in the higher-selling State III models is mainly electronically controlled high pressure common rail and electronically controlled monomer pumps. On the one hand, this is the requirement of Yuchai's customers. YC4F is a higher-end, light-duty diesel engine developed by Yuchai, and is mainly equipped with high-end light trucks and light passenger vehicles. This type of model is very fast in the environment of the implementation of the national III emission standard for young cars in 2009. At the beginning of the year, there were only one or two thousand units of sales per month, and monthly sales after April were all over 3,000 units, fully demonstrating that Model quality also shows that the electronically controlled high pressure common rail is also competitive in the more sensitive light vehicle sector. YC6M is Yuchai's most widely used heavy-duty diesel engine in the automotive market. It was once one of the three main powertrains for Dongfeng Tianlong (the other two models are Dongfeng Renault and Dongfeng Cummins diesel engines respectively), and Tianlong is trying to keep its high-end heavy The reputation of the car, the adjustment of the matching models, Yuchai YC6M supporting volume has declined, so Yuchai in order to establish its high-end quality image, chose the electronically controlled high pressure common rail and electronic control monomer pump.

Dongfeng Cummins

Dongfeng Cummins Inc. III diesel engine mainly used electronically controlled high pressure common rail technology in the early stage. After CNHTC launched the EGR “SARS” State III model, Dongfeng Cummins was a company that later joined this group, but its “SARS” engine The sales of the model increase rapidly. At present, Dongfeng Cummins's State III technology includes electronically controlled high pressure common rails, electronically controlled monomer pumps and EGR.

From January to July of 2009, among the EGR-category III diesel engines of Dongfeng Cummins, the L-series accounted for the largest proportion of sales, with the main customers being Dongfeng, Liuzhou, and Anhui Hualing; followed by the B-series, accounting for 20.98% of the total. The main customers are Dongfeng and Hubei Changtong. The proportion of the C series is 14.71%. The main customers are Dongfeng and Xiangfan buses. Electronically controlled monomer pump products are mainly concentrated in the B series, with higher sales in March, May and June. Dongfeng Cummins's electronically controlled high-pressure common-rail diesel engine products sold ISDe the most, followed by ISLe.

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Tianjin Revo

The predecessor of Tianjin Revoline is Perkins Tianjin Power Company, which is now Beiqi Foton Holdings. The products are mainly used for non-roads such as construction machinery. The speeding series of vehicle engines is mainly equipped with Beiqi Futian high-end medium-sized commercial vehicles.

Tianjin Lovol Corporation's State III standard diesel engine mainly uses the electronically-controlled high-pressure common rail and electronically controlled monomer pump technology. It can be seen from the statistics that Tianjin Lovol's electronic unit pump diesel engine sales are higher than that of high-pressure common-rail. a lot of.

Xichai

The FAW Jiexi Xiaguo III diesel engine adopts three technical routes: electronically controlled monomer pump, electronically controlled high pressure common rail, and electrically controlled VE pump + EGR.

Because on the platform of State III, Bosch did not launch the low-cost and affordable high-pressure common rail at the beginning, and the high-pressure common rail was not competitive in the market. Therefore, Xichai mainly used monomer pumps as the technical route in light diesel engines. . Later, Bosch launched a low-cost high-pressure common rail, the cost is similar to the single pump, and Xichai began to install a large number of high-pressure common rails.

The diesel engine series of FAW Xichai supporting electronically controlled high pressure common rails mainly includes: CA4DW, CA4DX, CA4DF3, CA4DL, CA6DL, CA6DF3, CA6DM, and CA6DN.

The national III diesel engine models supporting GER "SARS" and electronically controlled monomer pumps include CA6DF3J, CA4DF3J, CA6DF2D, CA6DF2E, CA6DL, and CA4DW.

From the statistics of production and sales from January to July, FAW Xichai's electronically controlled high-pressure common-rail diesel engine has a relatively large sales volume, but its EGR “SAR” diesel engine has a very rapid increase. In the electric-controlled common-rail type six-cylinder machine, the CA6DL series was the biggest seller. The series had nearly 1800 units installed in July, and the average monthly installed capacity was 1,610 units from January to July. The CA6DL diesel engine sales of "SARS" route models were as high as 3,800 in July, and the average monthly installed capacity from January to July was 3215, indicating that the amount of matching for the "SARS" route model was quite large.

In recent years, Xicai's CA6DN and CA6DM diesel engines with a displacement of more than 10 liters have all adopted the electronically controlled high pressure common rail technology. The electronic control unit pump and the EGR “SARS” route have not yet been adopted, but the sales of these two models are There are less than 200 months. In addition, the two smaller diesel engines CA4DX and CA4DW from Xichai are used for low-end trucks or agricultural vehicles. When upgrading them to the national III emission standard, Xichai uses electronically-controlled high-pressure common rails and electricity. With the two technologies of monomer pump control, the sales volume of CA4DW diesel engines fitted with electronically controlled monomer pumps reached 373 units in July.

Weichai

By the end of May 2009, the cumulative sales volume of Weichai Blue Engine, the WP Series III standard electronically controlled high-pressure common-rail diesel engine, was nearly 120,000 units. The market share of this engine in the heavy-duty truck market has increased from 36% in 2008 to 39.59% currently. The group figures strongly illustrate the successful application of high pressure common rail technology in heavy duty diesel engines.

Weichai has been collaborating with AVL in the development of electronically controlled high pressure common rail products since 2002. We started small batches in the market in 2006 and mass production in 2008. After Lanqing was introduced to the market, Weichai also developed a variety of derivative products and devices, such as the WP multi-function fuel-saving switch, water removal filter, fuel-saving fan, fuel-efficient cylinder technology, and common rail lines.

The Weichai III diesel engine has recently launched the 6L and 4L series, mainly for medium-sized passenger cars, but it has not yet achieved mass production. Judging from the fuel injection system, Weichai mainly uses Bosch's electronically controlled high pressure common rail technology.

Weichai has different choices of “SARS” technology from other manufacturers. Weichai has external EGR engines and built-in EGR models. At present, Weichai's external EGR heavy trucks have begun small-scale production, and the built-in EGR vehicle products have also been loaded, but have not yet passed the certification of the Ministry of Environmental Protection and sales are extremely small.

The main model of the Weichai III standard diesel engine is the WP10 series with a displacement of 9.7L. This model is widely used in Shaanxi Auto, Futian, Beiben, Hualing, Yutong, Dajinlong, etc. The average monthly sales in 2009 was about 13022. station. The sales volume of the 12L WP12 diesel engine is very small. The average monthly sales from January to July this year is only 205 units, which is mainly supported by ultra-large luxury passenger cars. However, China's large-displacement diesel engine has a trend of advancing to 13L. It is expected that Weichai WP12 diesel engine will increase in volume in two years.

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FAW Daichai

The National III diesel engine of Deutz First-Generation Dalian Diesel Engine Co., Ltd. uses electronically controlled monomer pump and EGR technology respectively.

As an important representative manufacturer of the "SARS" State III technology line, Dichai uses an external EGR device and applies it to the traditional DDFC 4DF3 and 6DE3 models. In terms of sales volume, the above EGR models began to increase significantly after March. From April to July, the average monthly sales of the 4DF3 were about 645 units, and the average monthly sales of the 6DF3 were about 756 units. The average monthly sales of the two models in the first quarter were only about 120 units.

Dachai's electronic unit pump system was brought by Deutz, but the Deutz model is a high-end product, mainly supporting medium-sized passenger cars, and its sales volume is limited. There is still a large distance compared with 6DE3 and 4DF3.

China National Heavy Duty Truck

China National Heavy Duty Truck is the first company to launch the EGR "SARS" State III diesel engine. In 2008, it led to the discussion of the State III technology line in the heavy truck market.

As one of the two main engine plants of China National Heavy Duty Truck Group, Hangfa has adopted the external type of EGR and obtained the production conformity certification of the Ministry of Environmental Protection. Its sales volume has surpassed that of the electronically controlled high pressure common rail system. However, with the increase in the use time of such heavy trucks, the advantages of EGR products are gradually being lost. Even the dealers of Sinotruk 4S stores believe that there are many problems such as fuel consumption and excessive emissions. Since 2009, the sales of China Heavy Duty Truck EGR Heavy Duty Trucks have fallen significantly, and the electronically controlled high-pressure common rail vehicles have risen rapidly. Last year, the heavy truck A7 heavy trucks and automatic trucks equipped with automatic transmissions of CNHTC have been equipped with high pressure common rail engines.

China National Heavy Duty Electronically Controlled High Pressure Common Rail Diesel Engine adopts the electric common rail system. The price of the whole machine is 9,000 yuan more than that of the EGR model. According to statistics, at the beginning of the year, due to the heavy machine downturn, the total output of Hangfa was smaller, and the sales volume of State III and State II models were relatively close, but after March, the sales volume of State III Diesel was Greatly more than the State II diesel engine.

Implementation of the country III standard long way to go

At present, from the point of view of the production capacity of the State III standard diesel engine, the mainstream engine plants are already available, but from the results of the monitoring of sales data from January to July of this year, there are still a large number of companies that produce light diesel engines. With less than 100 units, there are not even large orders and stable customers. The investigation shows that the light diesel engines of these companies are basically based on the electronically controlled high pressure common rail and the EGR “SARS” route. Because the production and sales volume is extremely small, the loading and supporting facilities are four or five months, so the machine cannot be judged. Type after the large-scale promotion. In addition, in the light machine market, no user-recognized flagship models with reliable performance and economical durability have emerged so far. This is a huge threat to the replacement of millions of light-weight cards and passenger cars.

From the perspective of technology, with the exception of China National Heavy Duty Truck, the production of EGR “SARS” models of other enterprises has rapidly increased. However, more and more problems have been exposed in the actual use of such diesel engines, especially built-in EGR products. This is actually a matter of fact. Ironic phenomenon. What is even more worrying is that the relevant functional departments did not play a role in the management and guidance of the EGR diesel engine market on the ground that they did not receive applications from companies. Even many companies that produce such diesel engines hope that the market will be more standardized. A fair environment is more conducive to the growth of the company.

Many users reflect that the State III model is more expensive than the State II fare oil. In fact, in the same power segment range, the National III standard vehicle does not have a large power of the National Standard II vehicle. Therefore, in the case of the same object quality, the National III vehicle must select more power. Even so, as long as the vehicle is properly matched, although the power is large, the fuel consumption is even smaller. After a period of running-in, the effect of fuel saving by the National III car will soon be revealed, but most users do not understand the national III car. Matching is more complicated. It can be seen that there are still many issues waiting to be resolved in the use of State III vehicles.

Recently, many departments have frequently met to study the issue of implementing the IV standard. In fact, the foundation of the National IV is the State III. Only if the problem of the existence of the State III is thoroughly solved, can the implementation of the State IV be smooth and practically meaningful. Strictly speaking, it is a booster for enterprises to enhance their competitiveness.

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