“In China, it is not only suitable for China's national conditions, but also can quickly achieve the transformation and upgrading of light commercial vehicles. I think AMT is a better option.†Li Shengqi, Secretary-General of China Gear Professional Association, told reporters, “The market segment for light commercial vehicles In China, the proportion of light trucks is relatively large. If optimization of matching and energy-saving and noise reduction are considered, it is also suitable for multi-files, and the artificial release of labor can give priority to AMT."
Li Shengqi believes that at this stage, the development of light commercial vehicle transmission automation, first, the technology must be mature, and second, the product must be reliable. The inheritance of AMT's traditional industries is relatively good. After many years of research and development, the independent brands have basically mastered the core technologies of AMT, and the technology is basically unaffected by people. At the same time, AMT is already available on large-scale urban passenger cars, whether it is pure electric, hybrid or traditional vehicles. With good performance, following this idea on the light truck, we will certainly break through some key technologies and achieve results. “Customers purchasing light commercial vehicles pay more attention to economy, low cost of purchase, and low cost of use and maintenance. Therefore, when enterprises adopt automatic transmissions, they must balance economic efficiency and comfort. Overall, AMT is more appropriate.†Zhejiang Wanliyang Transmission Co., Ltd. Renhua Lin, director of the company's director and project investment, told reporters.
The development route of China's previous automatic transmissions was mainly based on the technical level and the relatively low cost of AMT. At present, most of the major transmission manufacturers in China have the product development capability of AMT, and some models have begun mass production. It is understood that the Wanliyang company has conducted research on automatic transmissions earlier in the country. So far, AMT automatic transmissions for light commercial vehicles have been mass-produced, and light-vehicle automatic transmissions will be developed in the future. SAIC Da Chin first introduced China's first automatic light passenger Chase V80 in 2014. Shandong Mengwo started to design and develop an AMT automatic transmission suitable for light trucks in February 2014, matching the two models of Foton’s era pilot vehicle, currently in road trials. stage.
The road to automation of transmissions for light commercial vehicles is not easy. The independent brands still face challenges. Ren Hualin believes that the first is the matching problem, including comprehensive integration, cooperation with the vehicle manufacturer, and then the key component technology independent brand has not yet mastered, such as chips and sensors must rely on imports.
Zhang Zhidong, general manager of Shandong Mengwo Transmission Co., Ltd. emphasized the importance of focusing on the control of clutches. The reason is that compared with passenger vehicles, the lighter commercial vehicles have even worse working conditions, and the load change range from no-load to heavy-duty is wider. Much more, during the start-up and shifting process, the entire vehicle runs smoothly.
High Temperature Printing And Dyeing Pump
The main flow components of the high temperature printing and dyeing pump are the suction chamber, the impeller and the pressurized water chamber. The water suction chamber is located in front of the water inlet of the impeller, and plays the role of guiding the liquid to the impeller; the water pressure chamber mainly has three forms: a spiral pressure water chamber (volute type), a guide vane and a space guide vane; the impeller is the most important part of the pump. The important working element is the heart of the flow passage part, and the impeller consists of a cover plate and a middle blade. Before the high-temperature printing and dyeing pump works, first fill the pump with liquid, then start the high-temperature printing and dyeing pump, the impeller rotates rapidly, and the blades of the impeller drive the liquid to rotate. , in this process, the liquid in the impeller flows around the blades, and the liquid acts a lift force on the blades during the flow movement, and in turn, the blades act on the liquid with a force equal to and opposite to the lift force, and this force acts on the liquid. Do work, so that the liquid gets energy and flows out of the impeller, at this time, the kinetic energy and pressure energy of the liquid increase.
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