The diesel engine EFI technology is a representative automotive core component technology. For automotive diesel engines, the EFI system acts as the "heart" and "brain". In the past decade, breakthroughs in the emission, power density, and NVH (noise, vibration, and harshness) of automotive diesel engines have mainly benefited from the application of electro-jet technology. As the development of EFI technology requires the support of multiple technologies, the accumulation of large amounts of data and experience and the huge amount of capital investment have made it into the ranks of technology-intensive and capital-intensive products. For a long time, the core component technology of this car has been monopolized by Bosch, Denso, Delphi, and other foreign auto parts industry giants.
Due to various reasons, China's diesel engine oil pump nozzle industry is in a state of long-term weakness. Its main products are all imitations and lack of independent development capabilities. In terms of EFI technology, the domestic industry is basically in a blank state. The high threshold for foreign companies to apply their EFI product settings (including the selection of product types, prices, and maintenance and usage conditions) has made China's automotive diesel industry pay a significant price in meeting the national emission standards.
To meet the national III emission regulations equivalent to Euro III requires the use of electronic fuel injection technology for automotive diesel engines, which does not appear to be technically impeded, as various electronic fuel injection systems have long been widely used abroad, but domestic automotive diesel engine companies are considering the application of electricity. The following problems will be encountered in the injection technology: First, only a few common-rail systems and other EFI technologies are available for selection; second, most of the existing diesel engine products will continue to be produced in the future and cannot be changed significantly. The EFI system must be adapted to the design features of the diesel engine. Third, the prices of EFI systems provided by foreign companies are higher, and in many cases exceed acceptable levels. Fourth, the maintenance facilities required by EFI systems provided by foreign companies. It is high and the spare parts are expensive. Fifth, the quality of domestic fuel supply is poor, and the content of impurities and water is high. It is difficult to meet the requirements of electronically controlled fuel injection systems provided by foreign companies.
According to a large number of market surveys, a mainstream diesel engine EFI product that can be accepted by most domestic automotive diesel engine manufacturing enterprises should have the following characteristics: First, the technology is mature and has the basic characteristics to meet the EU III emission regulations; second, the appearance The size and mechanical interface are similar to the mechanical in-line pump, and it is convenient to install on the existing models. Third, the manufacturing technology is relatively simple and easily localized, so that competitive OEM (original equipment manufacturer) prices and zero can be realized. The price of accessories; Fourth, compared with the mechanical in-line pump must have a certain degree of inheritance, no excessive requirements for use and maintenance conditions; Fifth, better adaptability to fuel quality.
Wang's Wit has always been committed to the independent development of diesel engine EFI technology. Its self-developed electronically controlled combination pump is developed on the basis of an electronically controlled monomer pump, which is achieved through the opening and closing of a high-speed solenoid valve. Oil timing and fuel injection control are time-controlled systems that are more dynamic than position-controlled systems. The main difference between the electronically controlled combination pump technology and the electronically controlled monomer pump is that it does not exist in a single form but in an integrated form. Several pump core units are integrated in a pump box. These pump core units are actually Redesigned miniature unit pump. The mechanical structure of the electronically controlled combination pump is even simpler than the traditional mechanical in-line pump, and the number of parts is small, and it is expected to achieve high reliability. The electronically controlled combination pumps independently developed by Wangshi Weite in Chengdu include WP1000 and WP2000.
After launching the electronic control combined pump technology of Wang's Witness, it has received widespread attention and widespread acceptance from the domestic automotive diesel engine industry. It has signed agreements with more than a dozen major automotive diesel engine manufacturers to test electrically controlled combination pumps. In January 2006, the national environmental protection department began to announce the first batch of state-three emission diesel engines. Witt was the first domestic supplier of fuel systems announced. At present, Yuchai, Yangchai, Tianjin Revo, Dachai, Xichai, etc. have begun to introduce the company's three diesel engines equipped with Witt electronic control combination pumps. Since 2007, Wit has delivered 4,200 electronically controlled combination pump systems to these manufacturers.
At present, the first 80,000 electric-controlled combined pump production line has finally changed from drawing to actual product, and the date of SOP (standard operating procedure) is November this year. The second 80,000 electric control combined pump production line has started equipment procurement, and the SOP will be realized in April next year. By the end of next year, Wang's Witt will form a mass production capacity of nearly 200,000 sets of electronically controlled combination pumps.
Due to various reasons, China's diesel engine oil pump nozzle industry is in a state of long-term weakness. Its main products are all imitations and lack of independent development capabilities. In terms of EFI technology, the domestic industry is basically in a blank state. The high threshold for foreign companies to apply their EFI product settings (including the selection of product types, prices, and maintenance and usage conditions) has made China's automotive diesel industry pay a significant price in meeting the national emission standards.
To meet the national III emission regulations equivalent to Euro III requires the use of electronic fuel injection technology for automotive diesel engines, which does not appear to be technically impeded, as various electronic fuel injection systems have long been widely used abroad, but domestic automotive diesel engine companies are considering the application of electricity. The following problems will be encountered in the injection technology: First, only a few common-rail systems and other EFI technologies are available for selection; second, most of the existing diesel engine products will continue to be produced in the future and cannot be changed significantly. The EFI system must be adapted to the design features of the diesel engine. Third, the prices of EFI systems provided by foreign companies are higher, and in many cases exceed acceptable levels. Fourth, the maintenance facilities required by EFI systems provided by foreign companies. It is high and the spare parts are expensive. Fifth, the quality of domestic fuel supply is poor, and the content of impurities and water is high. It is difficult to meet the requirements of electronically controlled fuel injection systems provided by foreign companies.
According to a large number of market surveys, a mainstream diesel engine EFI product that can be accepted by most domestic automotive diesel engine manufacturing enterprises should have the following characteristics: First, the technology is mature and has the basic characteristics to meet the EU III emission regulations; second, the appearance The size and mechanical interface are similar to the mechanical in-line pump, and it is convenient to install on the existing models. Third, the manufacturing technology is relatively simple and easily localized, so that competitive OEM (original equipment manufacturer) prices and zero can be realized. The price of accessories; Fourth, compared with the mechanical in-line pump must have a certain degree of inheritance, no excessive requirements for use and maintenance conditions; Fifth, better adaptability to fuel quality.
Wang's Wit has always been committed to the independent development of diesel engine EFI technology. Its self-developed electronically controlled combination pump is developed on the basis of an electronically controlled monomer pump, which is achieved through the opening and closing of a high-speed solenoid valve. Oil timing and fuel injection control are time-controlled systems that are more dynamic than position-controlled systems. The main difference between the electronically controlled combination pump technology and the electronically controlled monomer pump is that it does not exist in a single form but in an integrated form. Several pump core units are integrated in a pump box. These pump core units are actually Redesigned miniature unit pump. The mechanical structure of the electronically controlled combination pump is even simpler than the traditional mechanical in-line pump, and the number of parts is small, and it is expected to achieve high reliability. The electronically controlled combination pumps independently developed by Wangshi Weite in Chengdu include WP1000 and WP2000.
After launching the electronic control combined pump technology of Wang's Witness, it has received widespread attention and widespread acceptance from the domestic automotive diesel engine industry. It has signed agreements with more than a dozen major automotive diesel engine manufacturers to test electrically controlled combination pumps. In January 2006, the national environmental protection department began to announce the first batch of state-three emission diesel engines. Witt was the first domestic supplier of fuel systems announced. At present, Yuchai, Yangchai, Tianjin Revo, Dachai, Xichai, etc. have begun to introduce the company's three diesel engines equipped with Witt electronic control combination pumps. Since 2007, Wit has delivered 4,200 electronically controlled combination pump systems to these manufacturers.
At present, the first 80,000 electric-controlled combined pump production line has finally changed from drawing to actual product, and the date of SOP (standard operating procedure) is November this year. The second 80,000 electric control combined pump production line has started equipment procurement, and the SOP will be realized in April next year. By the end of next year, Wang's Witt will form a mass production capacity of nearly 200,000 sets of electronically controlled combination pumps.
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