In recent years, with the increasing vehicle ownership in China, vehicle exhaust pollution and other issues have become increasingly severe. How to reduce vehicle exhaust pollution has become a common concern of all sectors of society. During the two sessions this year, Premier Li Keqiang stated in his government work report: "Environmental pollution is the cause of suffering in the people's livelihood and the pain of people's hearts. It must be iron-handed." As an important measure for vehicle emissions reduction, high-pressure common-rail technology has developed rapidly in recent years. While greatly improving the power performance of automotive engines , it has become the mainstream technical route for China's vehicle engines to meet national emission regulations. At the 14th China International Combustion Engine and Components Expo 2015, which was recently closed, Liaoning Xinfeng Enterprise Group Co., Ltd. (abbreviated as “ Xinfeng Group â€) exhibited independent intellectual property rights and met various types of national emission standards. The high-pressure common-rail system has become one of the few national brand products in the field that is close to or has reached the level of international advanced technology. It is of great significance to promoting China's industrial upgrading in this field and breaking the foreign monopoly. As a rising star in China's auto parts industry in recent years, Xinkai Group vice chairman Kang Kai told reporters that since the start of the venture, Xinfeng Group has introduced the second generation of common rail technology from the Common Rail Technology Research Institute of the Federal Institute of Technology in Zurich. On this basis, we will continue to digest, absorb, and innovate. It can be said that the current high pressure common rail products produced by Xinfeng Group also represent the highest technological level of China's engine parts and components in this field. Heavy-duty high-pressure common rail system improves the fresh air product system During the entire exhibition period, the newly launched heavy-duty diesel high-pressure common rail system of Xinfeng Group has become an important aspect of the entire exhibition, attracting the attention of many media and people in the industry. “The threshold of heavy-duty diesel engines is relatively high, and they are subject to market acceptance. There are many reasons for this. In the four years of the implementation of the National IV, the current market performance of the light common rail system is based on the good market performance. A heavy-duty common-rail system adapted to the five-phase road machine's maturity has been exhibited. This not only fills the gap in the heavy-duty common-rail products in the heavy-duty diesel engine field, but also makes the product structure of the new-wind common rail system more complete.†Vice Chairman of Xinfeng Group Conkay said. In terms of parameters, the maximum allowable working pressure of the new heavy-duty high pressure common rail is 2000bar, the limit working pressure is 2200bar, and the working temperature is -40-120°C. Based on 32-bit high-performance single-chip microcomputer, the product function covers the functions of mainstream foreign products in the market. 154-pin connector, product can be installed in the engine compartment, cockpit, torque-based power system integration management, with full control of vehicles, engines, intake, exhaust, fuel system, calibration parameters up to more than 4,000, Support DPF or SCR system expansion, support multiple air intake schemes for EGR, VGT and TVA, complete OBD function, complete verification test in strict accordance with the international standards of automotive electronic products, and have a complete third-party testing agency verification test report. Heavy-duty high-pressure common rail reliability MTBF ≥ 4000 hours, carbon dioxide emissions decreased by 10-15%, fuel consumption decreased by 10-15%, fully meet the national five and above emission standards. Electronic control platform, solenoid valve and other highlights In addition to the high pressure common rail system, during the exhibition, the different series of ECU electronic control platforms launched by Xinfeng Group for different user's individual needs are also bright spots. Among them, the newly introduced petrol engine ECU electronic control platform, features include: 12V system, the use of 32-bit high-performance microcontroller; meet the national five emission standards; complete OBD function; support 90 / 121 pin connector selection; can be installed in the engine compartment , cockpit; Torque-based power system integration management, comprehensive control functions; through third-party international institutions capital verification testing. Product applications include: In Europe, the European IV project has entered a large-scale sales stage; the longest mileage of batch vehicle failure-free operation has exceeded 100,000 kilometers. The ECU11 electronic control platform belongs to the mid-end product platform, covering low-end common-rail diesel engines, gasoline engine direct injection, natural gas engines, and diesel engine exhaust gas after-treatment. The ECU12 electronic control platform belongs to the high-end product platform, and the product application covers various high-pressure common-rail diesel engines and diesel/natural gas mixed-burning systems. Both of them adopt the mainstream 154-pin connector, which reduces the cost of wiring harness. The product is based on the latest 32-bit high-performance single-chip microcomputer and has a complete OBD function. The 12V/24V system is universal. The improved structural design can meet the engine, engine compartment and cockpit installation requirements, and adopt an open software architecture that facilitates the expansion of new features and integration of customer functions. In solenoid valves for fuel injectors, the solenoid valve for the high-pressure common rail injector of the Xinfeng Group medium-sized diesel engine adopts the waterproof plug connection method, and the solenoid valve for the medium and heavy-duty diesel high pressure common rail injector adopts the threaded sleeve connection method, both of which are open. It is 180us, the closing time is 100us, and it can realize 7 times of single work cycle continuous opening; In the high-speed common-rail fuel injector high-speed electromagnetic valve developed for foreign customers, its solenoid valve opening time is less than 200us, and the closing time is less than 100us. ,In order to meet the injection pressure of 2000bar, a single work cycle can be achieved 5 consecutive times. The above three products can meet the application requirements of the four-phase high-voltage common rail system in the four countries and the country. In addition, the single-pump solenoid valve introduced by Xinfeng Group meets the 1800 bar injection pressure and meets the application requirements of the high-voltage common rail system in the country's three-nation and four-nation. “At present, Xinfeng Group has supplied high-pressure common rail products for domestic mainstream diesel engine manufacturing companies such as Huayuan Laidong, Great Wall, Sida, etc., and possesses nearly 400 models for the National N1 Environmental Protection Announcement, and the National 4 N2 Environmental Protection Announcement has 3 lines. The products are mainly used in many vehicle companies such as Foton, Panthers, Kama, and Ace, and the market feedback is good. At the same time, we have established cooperation with Yunnei, Changchai, Sida, Sanyi and more than 10 companies. Relations, models covered the road to the country and the non-road machine state five countries, four." Kang Kai told reporters. On the after-sales network, Kangkai said that in order to adapt to the "Internet +" development trend, Xinfeng Group has established a complete remote diagnostic network system for client terminals. Customers can download free APP software through their own communication terminals, such as mobile phones, to connect with the server of the Xinfeng Group. The metaphor of his image said: "We all know that the core driving force for enterprise development is R&D, production, management, and sales. The image is a little bit to say that R&D is the corporate brain, and production and management are the company's trunk and arms, and sales and after-sales are the legs. No company can never run without legs." To this end, the Market Service Department of Xinfeng Group Sales Corporation has established a post-sale protection team consisting of more than 60 professional engineers, promising to reply to the problem within one hour after receiving the notification from the client. Opinions, to restore the normal operation of the vehicle to the customer within 48 hours. It is reported that the current self-built after-sale maintenance network of Xinfeng Group includes: 18 first-class special maintenance stations and 258 special maintenance network stations. From May 2012 to the present, Xinfeng Group has trained 12 technical personnel of special maintenance stations for the new winds in 12 batches. The maintenance of the assembly can be carried out without replacing the assembly, which greatly reduces the user's use cost. In the future development of Xinfeng Group, Kangkai told the author with confidence: “The new wind will remain firmly on the road of high-pressure common rail. We will definitely live up to the expectations and fulfill our mission to serve our customers well, because the new wind will always be only for the industry. Useful things."
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Xinfeng Group Heavy-duty Common Rail System 
Xinfeng Group R&D and production of high pressure common rail injectors