On October 31, at the Hainan Proving Ground, four Great Wall pickups loaded with the Bosch Common Rail System each ran a super low fuel consumption of about 3 liters per 100 kilometers. Coincidentally, after two days, at the second China International Trucking Fuel Contest held on November 2, the Dongfeng Commercial Vehicle, Beiqi Foton, Beiben Heavy Duty Truck, SAIC Iveco Hongyan, JAC, Dongfeng Liuqi, Among the 18 trucks of Valin’s seven participating companies, most use the common-rail diesel injection system provided by Bosch, and Bosch Automotive Diesel Systems Co., Ltd. has thus become the winner of the Special Contribution Award for this competition. Why did the manufacturers of light trucks and heavy trucks choose the common rail system? The reporter interviewed several leaders of Bosch Automotive Diesel Systems Co., Ltd. Lay the foundation of advantages such as flexible control "Common-rail system is electronically controlled. Many functions can be added to it through ECU. The advantages over mechanical systems are obvious. The most important is its flexible and precise control. This is the greatest advantage of common rail systems." Bosch Gu Zhihua, senior manager of Automotive Diesel Systems Co., Ltd., explained to reporters concisely, “Because of the combination of common rail system and electronic control, energy saving and environmental protection have become the biggest advantages of the common rail system. At the same time, it is also reflected in safety, reliability, and driving. In terms of improvement of the sex and comfort, it is also due to the electronic control that many functions can be expanded on the ECU, making it easier for the common rail system to upgrade the emission standards.Therefore, the common rail system can maximize the potential of the diesel engine. Excavate to better reflect the superiority of diesel engines." The reporter also noted that compared with other fuel injection systems, the diesel engine used in the common rail system has a wide range of applications ranging from passenger cars to commercial vehicles, light trucks to heavy trucks, agricultural machinery to trains, ships, etc. Can cover. Gu Zhihua said that the reason why the common-rail system has such a wide range of applications and fully exploited the advantages of diesel engines is due to its several main characteristics: The first is the injection pressure. The common rail system allows diesel fuel to be injected and atomized at an optimum high pressure, and high-pressure injection can be realized at a low speed and a small load, that is, the optimum injection pressure can be found under each operating condition. Followed by the fuel injection time. The common-rail system allows diesel fuel to be injected at optimum timings. Under changing conditions, Bosch's electronically controlled common-rail system can measure and control the optimal injection time in units of one-millionth of a second. Again, the amount of fuel injected. Bosch's common-rail system allows diesel fuel to be accurately and evenly sprayed into each cylinder in milligrams; The last is multiple injections. Bosch's 2nd generation system can achieve up to 5 injections per cycle (2 pre-injections, 1 main injection, 2 post-injections) for different functions and purposes, which reduces combustion noise and nitrogen and oxygen emissions while taking into account low The only way of fuel consumption; also used for regeneration of particle trap DPF to meet higher emission requirements. While introducing the above major advantages, Gu Zhihua specifically emphasized the flexible characteristics of the common rail system: both the fuel injection pressure and the injection timing can be used to modify the set values ​​according to the engine temperature, ambient temperature, and atmospheric pressure, thus achieving Optimization of fuel injection in a variety of environments. At the same time, the injection time and multiple injections also have considerable flexibility. For example, the injection time is controlled by the ECU's electric signal command, and the optimal injection timing is achieved according to various working conditions; The control of the amount, number, and duration of the pre-injection and post-injection is also based on the ideal settings stored in the ECU. Fuel injection can also be functionally compensated under the pre-programmed software program with self-learning capabilities. Gu Zhihua stated that many functions in the common rail system of Bosch can be optimized. Automatic correction is performed under different working environments. Flexibility is very good. Therefore, it can be said that common rail is the most flexible diesel injection system. In addition, Gu Zhihua also emphasized that the four major components that make up the common rail system - ECUs, fuel injectors, fuel rails and pumps - are four separate components. With the rigorous emission standards, such as the upgrading of the country from three to four, the rail pressure is increasing, the injection pressure is increasing, the internal parameters need to be changed, and the ECU needs to be upgraded. However, the components of the common rail system basically remain unchanged, and the users come Say no need to modify the engine installation. In other words, as long as the engine body has the potential for emission upgrades, emission upgrades can be represented by common rail systems. Localization strategy is powerful Bosch's common rail system has a rapid development in China. Apart from the technical flexibility and other characteristics, it is inseparable from the company's extreme emphasis on the development of localization. The localization of Bosch Common Rail System is based on the localization of parts production, the second is the localization of R&D, and the more important is the localization of R&D personnel. Looking at the course of Bosch common rail technology development, we can see that: in 1997, the first passenger car common rail system was born; in 1999, the first commercial vehicle common rail system was put into use; in 2004, the use of piezoelectric ceramic injection The third generation of common rail system appears. In the same year that the third-generation common rail system was born, in July 2004, Bosch jointly invested and established Bosch Automotive Diesel Systems Co., Ltd. in Jiangsu Wuxi and Weifu. This joint venture company with more than 2,600 employees now has a relatively strong technological research and development capability. There is a diesel technology center with advanced equipment such as engine test benches, chassis dynamometers, and exhaust gas analyzers. 380 engineers are engaged in various types of R&D and matching. At present, more than 2 million injectors for common rail systems have come from this factory. The Bosch common-rail system was eventually approved by end-users, and Bosch's localization strategy was also inseparable. The reporter learned that CRS1.3, a common rail system for light commercial vehicles and passenger cars, and CPN2.2BL, a locally produced high-pressure oil pump suitable for heavy commercial vehicles, have been widely used in the domestic market. According to Wang Xiaodong, deputy general manager of Bosch Automotive Diesel Systems Co., Ltd., what they are doing is to make more customers realize the superiority of high-pressure common rail systems. "We have launched an active promotional campaign to allow more users to understand our products and understand our system, so that users can feel the product in constant use." Wang Xiaodong said. As Peng Deyuan, President of Bosch (China) Investment Co., Ltd. stated: "To succeed in China, we must speed up localization; in terms of localized production, we must adapt to China's price level." Cans For Juice,Mini Juice Cans,Mini Orange Juice Cans,Small Cans Of Juice Guangdong Jasper Import and Export Co., Ltd. , https://www.jaspercans.com