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Erica Zhu Feilong Jiangli

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  1. Because of the limitation of installation space and performance requirements, automobile engine cooling water pump has the characteristics of small size, easy manufacture and mass production. Cooling water pump generally consists of pump body, impeller, shaft bearing, water seal, belt pulley and other major components. The pump body pressure chamber can be integrated on the engine cylinder body according to the different structure of the engine cylinder body, or can be configured separately. Impeller is the core functional component of water pump, its diameter, outlet width, blade structure shape and other parameters and structural design directly determine the performance of cooling water pump. There are many kinds of structure of cooling water pump, which can be divided into cast iron impeller, stamping impeller and plastic impeller according to the different material of impeller. Chongqing Feilong Jiangli has mature technology and rich experience for these three impellers, which can meet the performance requirements of customers. According to whether there are cover plates, it can be divided into open impeller and closed impeller. Chongqing Feilong Jiangli mainly produces open impeller according to the shape of impeller blade. Similarly, it can be divided into straight blade impeller, single curvature blade impeller and space twisted blade impeller. Chongqing Feilong Jiangli impeller has different blade shapes, which can meet different needs. With the continuous development of science and technology, only heavy-duty trucks, buses and a few self-owned brand passenger cars still use cast iron impellers in cooling water pumps on the market, Japanese passenger cars now mostly use stamping impellers, and advanced countries such as Europe and the United States mostly use plastic impellers, such as Chongqing Feilong Jiangli's partner Ford, three impellers of domestic self-owned brand cars have been applied, but with it. With the introduction of new technology from abroad, plastic impellers have also been used in newly developed models. The plastic impellers of Feilong Jiang Li in Chongqing have been sold to the Indian market.
  2. Chongqing Feilong Jiangli specializes in the production of automotive pumps, as well as oil level gauge series, rubber parts series and stamping parts series. Chongqing Feilong brings you the latest information, let you know the latest technology. According to foreign media reports, since December 17 this year, the new speed camera system will be installed on Tanah Merah Binhai Avenue to calculate the average speed of vehicles in its extended section. In the first quarter of this year, the system was installed on the extended section of Binhai Avenue, which is 4 kilometers long. The purpose of the system is to carry out rigorous testing to ensure the accuracy and durability of the equipment. This system has been applied to Singapore for the first time. The speed limit of Danamella Binhai Avenue is 70 km/h. The reason why Danamella Binhai Avenue was selected by the system is that it is prone to speeding and illegal racing events. According to the Singapore police, "The system consists of several cameras located at the entrance and exit of enforcement zone to detect and calculate the average speed of vehicles in the area. If the average speed exceeds the road limit or the speed limit for special vehicles, the driver will be judged as speeding violation. Chongqing Feilong Jiangli analysis believes that the camera system can help traffic police detect violations such as speeding, so that drivers consciously abide by traffic rules and improve road safety.
  3. Fluoride-ion batteries provide an attractive alternative to other types of high-energy batteries, such as those based on lithium or metal hydride chemistry, which are usually limited by the inherent characteristics of the electrodes. Because of the low atomic mass of fluorine, the energy density of rechargeable batteries based on this element is very high, theoretically 10 times higher than that of lithium ion batteries. But Chongqing Feilong Jiangli believes that although fluoride ion batteries are considered as the next generation of high energy density energy storage equipment, they are limited by temperature requirements. At present, solid-state fluoride ion batteries need to work at temperatures above 150 degrees Celsius to make electrolytes conductive. To solve this problem, researchers have found a way to make fluoride ion batteries work at room temperature. The electrolyte was developed using dried tetraalkylammonium fluoride salts dissolved in organic fluoride ether solvents. When paired with composite cathodes with core-shell nanostructures of copper, lanthanum and fluorine, the researchers demonstrated a reversible electrochemical cycle at room temperature.
  4. With the emergence of self-driving vehicles, GPS accuracy becomes more and more important. Chongqing Feilong Jiangli understands that Tesla has developed a technology that enables more accurate positioning by sharing data between vehicles. Last year, Tesla filed a patent for the technology, called "Auto Location Technology", which was released this week by the U.S. Patent and Trademark Office. In the patent application, Tesla said that GPS positioning was inaccurate. For example, a smartphone with a positioning receiver may be able to locate itself within five metres. When the receiver is close to buildings, bridges, trees or other structures, the accuracy of positioning may decrease. Although this positioning accuracy is sufficient for some positioning applications, it needs more accurate accuracy for applications such as automatic driving. Therefore, although there are some factors affecting the navigation satellite signal, we still hope to provide more accurate positioning accuracy. Chongqing Feilong Jiangli believes that in the weak GPS signal, other sensors can be used to correct GPS data, which is very useful for automatic driving.
  5. Chongqing Feilong Jiangli understands that Continental, a technology company, is optimizing the relationship between safety and convenience with its smart door solutions. According to the inquiry of Chongqing Feilong, intelligent door braking system and intelligent automatic door system are introduced in mainland China, which can open and close the door conveniently and prevent the door from slamming uncontrollably. In addition, intelligent door solutions in mainland China also have obstacle detection function, which can improve road traffic safety and prevent dents and paint scratches on the door. The intelligent automatic door system is also an essential function of automatic driving. Even in the absence of an operator or door handle, an unmanned vehicle must be able to automatically open and close the door in order to cope with different actual situations and allow passengers to get off and get off easily. Continental Group also introduced an electric door control function, which can support automatic door opening and closing, and has anti-pinch protection function to protect passengers' fingers, hands or belongings from squeezing. Johann Hiebl, Head of Body & Safety Business of Continental Group, said: "By connecting with our Passive Start and Passive Access Control System (PASE), the doors can be opened automatically at the right time and passengers will not be touched. In addition, the door can recognize specific users and open on the right side.
  6. Erica Zhu Feilong Jiangli

    Application of carbon fiber

    Carbon fiber is a kind of inorganic macromolecule fiber containing more than 90% carbon. Graphite fibers contain more than 99% carbon. Carbon fibers have high axial strength and modulus, no creep and good fatigue resistance. Their specific heat and electrical conductivity are between non-metal and metal, and their thermal expansion coefficient is small. Because carbon fibers have very strong tear resistance, when they are woven into lattice structure, and then blended into resin, the strength of carbon fibers is higher than that of iron. After carbon fibers are applied to automobiles, the most obvious benefit to automobile manufacturing is the lightweight of automobiles, and the most direct impact is the improvement of energy saving, acceleration and braking performance. Carbon fibre composites have excellent energy absorption, collision energy absorption capacity is six to seven times that of steel and three to four times that of aluminium, which further ensures the safety of automobiles. Chongqing Feilong Jiangli upholds the concept of safety and lightweight, so that the products are more in line with the requirements of the times.
  7. Safety organizations around the world believe that up to 25% of road accidents are caused by driver fatigue. Vehicle global shutter image sensor can enhance driver monitoring function, reduce injury and save lives. Accurate sensing also helps the automatic driving system to assess the adaptability of human drivers to take over the car at any time during the journey, and simplify the transition between manual and automatic driving modes, thus providing driving comfort and safety. By capturing the scene illuminated by the camera, the image sensor enhances the monitoring of vehicle passengers and eliminates unpredictable external effects such as sunlight and street lighting. The quality of the images captured is excellent, which can make the driver's monitoring system more sensitive (especially near 940 nm near infrared illumination), and can evaluate the driver's attention, passenger comfort or children's behavior. The new sensor incorporates the global shutter technology of Italian Semiconductor, which can greatly reduce the lighting power consumption even in the highly dynamic ranging mode. It can monitor the position and movement of all passengers, evaluate the driver's condition, and accurately investigate the position and movement of other passengers, so as to improve safety. Chongqing Feilong Jiangli always insists on safety first.
  8. Renewable plastics have been used as building materials. In recent years, many automobile manufacturers have also "stared" on all kinds of bio based plastics. For example, some environmental protection parts of Ford Motor Co have been put into use: the central console made of reinforced cellulose materials; the materials extracted from coconut and cotton are used for automobile carpets and cushions; soybean foam materials. Material is used for elastic head cushions and car seat cushions. In addition, renewable materials derived from plant materials are widely used in BMW's electric vehicles and parts of Toyota's models. Many automobile manufacturers express the hope that these environmentally friendly materials will be further extended to other mass-produced vehicles in the future. Some people in the automotive industry said that "the use of renewable plastics in automotive manufacturing is actually not very different for consumers", but for consumers, manufacturers, plastic recycling industry, more will be to stimulate environmental resonance, promote the concept of automotive industry, plastic recycling industry, technology development. "From 2025, at least 25% of the plastic used in every new car we launch will be made of renewable materials." Not only is it a self-goal of an automobile brand, but it also promotes the automotive industry to incorporate recycling of plastic into its design and manufacturing.
  9. Power lithium batteries have become the benchmark for performance comparison of electric vehicles. In fact, the key to determine the performance of lithium battery is the cathode material. Its performance directly determines the main performance indicators of lithium batteries, accounting for more than 30% of the total cost. At present, lithium cobalt oxide, lithium manganate, lithium iron phosphate and NCM (nickel, cobalt and manganese) ternary materials have been commercially used as cathode materials for lithium batteries. At the early stage of the development of domestic electric vehicles, the power battery is dominated by the battery using lithium iron phosphate cathode material. Although the cycle life of the battery made of this cathode material is good, the energy density is relatively low, which leads to the relatively short range of electric vehicles. The high nickel ternary materials can significantly improve the energy density of lithium batteries, and can store more energy per unit volume or weight of batteries, thus gradually becoming the mainstream of the passenger car power battery market. chongqing feilong Jiangli is focusing on new automobile technology.
  10. According to foreign media reports, a recent breakthrough in hydrogen fuel production technology may promote the development of the automotive industry. Together, the two institutions of higher learning have achieved innovative breakthroughs in hydrogen fuel production, which play a key role in helping to reduce human dependence on carbon-based fuels. Unlike previous production methods, this innovation in hydrogen fuel production does not involve solar energy. In fact, researchers rely mainly on deciphering chemical mechanisms to make photochemical processes more effective. The production method was developed by researchers from the Israel Institute of Technology and the University of Ben Gurion (BGU) in Negev. Although the University of Exeter in the UK had previously used ferric lanthanum oxide as a solution, researchers at both universities proposed a more comprehensive approach to uncover the chemical reactions that occur in solar energy. Therefore, researchers link power generation with solar energy, as opposed to relying on human power and precious metals for power generation. Photoelectrochemical (PEC) water decomposition method stores radiated solar energy in chemical bonds by generating hydrogen. Hydrogen fuels have many advantages: 1. zero carbon dioxide emissions (water only); 2. compliance with California (high-load vehicles) Lane requirements; 3. hydrogenation takes only five minutes; 4. 3-year free fuel with a standard value of $15,000. At present, automobile manufacturers are seeking to develop efficient and environmentally friendly hydrogen-powered vehicles. Unlike electric vehicles, hydrogen-powered vehicles have faster hydrogenation speed and longer range.
  11. The main function of the electronic water pump is to cool the oil at the turbine shaft after quenching. The outer part of the turbine shaft is wrapped by oil. Because the oil inlet is much larger than the oil outlet, oil film will be set up between the turbine shaft and the casing under the action of oil pressure to lubricate the turbine shaft, and take away part of the heat of the turbine (the heat carried by the oil eventually passes out through the oil pan and the oil cooler); and the oil contacts with the turbine shaft. The outer part of the turbine shell is enclosed by cooling water. Similarly, because the inlet is much larger than the outlet, there will be a certain pressure in the cooling water between the shells. But the main purpose of the pressure is to ensure that the cooling water keeps good contact with the shell and to ensure adequate cooling effect. Turbine blade rotation is generated by the impact of exhaust gas after the engine works. In addition to the heat of exhaust gas, some kinetic energy of exhaust gas in the process of impacting the turbine blade will also be transformed into heat energy, so the turbine will become very hot. If the turbine shaft can not be cooled in time, the oil will become very thin due to high temperature, unable to establish enough oil film to ensure the lubrication of the turbine shaft, and because of the high temperature, the oil is very easy to oxidize and deteriorate, resulting in the malignant consequences of engine lubrication system failure. Therefore, forced cooling at the turbine shaft is necessary. When the vehicle is in operation, the engine pump will provide enough cooling water circulation. Once the vehicle goes out, because the turbine blade will continue to rotate due to inertia, so the bearing part of the turbine shaft must contain a small amount of oil to avoid wear of the journal, so the electronic pump will work for a period of time to provide enough cooling water to cool the oil at the turbine shaft, so as to avoid the oil caused by the turbine overheating. Deteriorate and damage the engine. Chongqing Feilong Jiangli has developed 30W, 60W, 100W pumps with different powers. We have independently developed and cooperated with many well-known automobile manufacturers for more than 40 years.
  12. http://autonews.gasgoo.com/china_news/70015383.html Lincoln's first China-made model will be an all-new SUV model and the mass-produced Aviator, which is set to be unveiled at the 2018 LA Auto Show later this month, will be introduced by Changan Ford and hit the market at the end of 2019. To meet Chinese consumers’ demands, the automaker will make the locally-produced models adjusted in exterior, interior and powertrains. The annual output of chongqing feilong pump is 2 million, and the annual output of oil level is 1.6 million.It is expected to realize multiple power production of electronic pump in 2020.
  13. The service life of turbochargers on automobiles should be more than 150,000 kilometers if they are properly used and maintained. However, due to the improper operation of some drivers and maintenance personnel irregular maintenance: it will cause unnecessary damage to the turbocharger, so as to shorten its service life. Modern cars can start without preheating after starting, but engines with turbochargers must idle for a few minutes before starting. If the engine starts as soon as it is started, the turbocharger rotor bearing will not be fully lubricated before high-speed operation, resulting in the early damage of the rotor floating bearing. Increasing the throttle load immediately after starting will accelerate the wear and tear between the rotor shaft and the floating bearing because of the oil-free lubrication of the supercharger bearing, and even jam. The engine suddenly stalls at high speed, while the rotor in the turbocharger is still spinning at high speed due to inertia, which will cause the floating bearings to be worn out or even ablated due to high temperature and lack of lubrication. The engine with turbocharger can not run idle for a long time. Because when the engine is idling for a long time, there is negative pressure behind the turbocharger turbine and the compressor impeller. Under the pressure difference, the oil from the floating bearing will leak out. This is also one of the reasons why the turbocharger engine often has less oil.
  14. Erica Zhu Feilong Jiangli

    Fatigue of automobile parts

    Fatigue fracture is a kind of fracture that occurs after a long period of work under the action of alternating stress. Fatigue fracture is one of the common failure forms of automobile parts, and it is also one of the most harmful failure forms. According to the characteristics of parts and the total number of stress cycles, fatigue failure can be divided into: crack-free parts of the fatigue fracture failure and crack parts of the fatigue fracture failure. For different types of fatigue failure, the analysis methods are different: when high cycle fatigue occurs, the yield strength should be below, and the life of the parts is mainly controlled by the crack nucleation life. The stress of low cycle fatigue is higher than that of yield strength, and its life is greatly influenced by the crack propagation life. Generally, automobile parts are low stress and high cycle fatigue fracture. Fatigue fracture failure mechanism: Fatigue fracture of metal parts is essentially a cumulative damage process, which can be divided into slip, crack nucleation, emblem crack propagation, macroscopic crack propagation and final fracture. Methods to improve fatigue fracture resistance of automotive parts: 1) Delay the initiation time of fatigue crack: strengthen the surface of metal alloy, such as surface rolling, shot peening and surface heat treatment. Grain refinement can improve the fatigue strength limit; heat treatment can prevent grain boundaries from becoming fatigue crack propagation channels; improve the purity of metal materials, reduce the size of inclusions; improve the surface integrity of parts design level, as far as possible to avoid the phenomenon of stress concentration. 2) Reduce the rate of fatigue crack growth: the main methods are: crack arrest method: that is, drilling holes in the front of crack growth to prevent crack growth; reaming method: that is, without affecting the strength of the premise, using reaming method to increase the diameter of fatigue crack, fatigue crack will be removed; scraping repair method: that is, using scraping method: Remove the cracks on the part surface. 3) Increasing the threshold length of fatigue crack: The threshold value of crack growth of metal parts is the maximum stress intensity factor amplitude of non-propagation (stability) of fatigue crack. Its value is usually determined directly by experiments. Chongqing Feilong——water pumps,oil dipsticks,rubber parts and electronic water pumps.
  15. The phenomenon of loss of metal in the relative movement of parts is known as the wear of parts. The occurrence of wear will cause changes in the shape, size and surface properties of the parts, which will gradually reduce the working performance of the parts. Wear is sometimes beneficial, such as running-in. According to different friction principles, wear can be divided into abrasive wear, adhesive wear, fatigue wear and corrosion wear. Then, what is adhesive wear? When the oil film on the metal surface is destroyed, the friction surface is directly contacted with each other, and adhesive wear occurs, which causes the metal on one part surface to transfer to another part surface. It is mainly caused by heavy metal surface and high temperature. Factors affecting adhesive wear: The influence of material properties. Brittle materials are better than plastic materials, and the surface roughness of parts is affected. The higher the smoothness, the smaller the wear volume; the effect of lubricating oil. To ensure sufficient lubricating oil, and to ensure that the viscosity of lubricating oil and working temperature, the surface of the parts of the oxide film is not easy to be destroyed; the impact of movement speed and unit area pressure. The higher the speed of the parts and the greater the load, the easier the adhesive wear is. Chongqing Feilong has a professional R & D team.Welcome to our factory.