SDI means naturally aspirated direct injection diesel engine, the use of Germany's Bosch (BOSCH) company's electronic control fuel distribution pump. For example, FAW-Volkswagen Jetta 1.9GDF uses a 1.9-liter SDI engine with a compression ratio of 19.00, exhaust emission meets Euro III standards, and a fuel economy of 4.6 km / km at a speed of 90 km. Users actually use less than 5.5L of fuel / 100km. TDI means turbocharged direct injection, more than a turbocharger SDI, Bosch pump nozzle for fuel supply technology, injection pressure up to 1870bar. Such as FAW - Volkswagen launched Polaris 1.9TDI engine, the compression ratio of 19.00, the turbocharger with adjustable vane, at any speed can produce the required inflation pressure, the performance greatly improved than the traditional turbocharger. Exhaust emissions meet the European III standards, 90 kilometers of constant fuel consumption 5.5L / 100km, the actual fuel consumption of users is less than 6.3L / 100km. Pump nozzle injection technology to increase injection pressure, diesel and air mixture more fully burn more thoroughly, while the use of oxidation-type catalytic reactor, greatly reducing the carbon oxide and nitrogen oxide emissions. However, the pressure of diesel oil in the high-pressure tubing fluctuates with the speed of the vehicle, which can easily lead to the vibration of the engine and cause more noise. High-pressure common rail injection system is based on direct injection technology, pre-injection technology and electronic control technology based on a new injection system. It can spray pressure and injection process completely separate from each other, through the common rail to achieve precise control of the oil pressure, high pressure pipe pressure and the engine speed has nothing to do. Therefore, high-pressure common rail injection system through the optimization of fuel injection control diesel engine to make it more fully burned, harmful emissions, noise and cold start performance have been greatly improved. However, common rail fuel injection pressure is lower than the pump nozzle system, generally only reached about 1600bar. SDI means naturally aspirated direct injection diesel engine, the use of Germany's Bosch (BOSCH) company's electronic control fuel distribution pump. For example, FAW-Volkswagen Jetta 1.9GDF uses a 1.9-liter SDI engine with a compression ratio of 19.00, exhaust emission meets Euro III standards, and a fuel economy of 4.6 km / km at a speed of 90 km. Users actually use less than 5.5L of fuel / 100km. TDI means turbocharged direct injection, more than a turbocharger SDI, Bosch pump nozzle for fuel supply technology, injection pressure up to 1870bar. Such as FAW - Volkswagen launched Polaris 1.9TDI engine, the compression ratio of 19.00, the turbocharger with adjustable vane, at any speed can produce the required inflation pressure, the performance greatly improved than the traditional turbocharger. Exhaust emissions meet the European III standards, 90 kilometers of constant fuel consumption 5.5L / 100km, the actual fuel consumption of users is less than 6.3L / 100km. Pump nozzle injection technology to increase injection pressure, diesel and air mixture more fully burn more thoroughly, while the use of oxidation-type catalytic reactor, greatly reducing the carbon oxide and nitrogen oxide emissions. However, the pressure of diesel oil in the high-pressure tubing fluctuates with the speed of the vehicle, which can easily lead to the vibration of the engine and cause more noise. High-pressure common rail injection system is based on direct injection technology, pre-injection technology and electronic control technology based on a new injection system. It can spray pressure and injection process completely separate from each other, through the common rail to achieve precise control of the oil pressure, high pressure pipe pressure and the engine speed has nothing to do. Therefore, high-pressure common rail injection system through the optimization of fuel injection control diesel engine to make it more fully burned, harmful emissions, noise and cold start performance have been greatly improved. However, common rail fuel injection pressure is lower than the pump nozzle system, generally only reached about 1600bar.
Teflon is Polytetrafluoroetylene, referred to as Teflon, PTFE, F4, etc.It is also known as Teflon, Teflon, Teflon, Teflon and so on because of its pronunciation.Polytetrafluoroethylene (ptfe) is a kind of plastic, which is used to manufacture heaters. It has been successfully used in chemical equipment heating. It has the characteristics of multi-layer and three-dimensional heating.
The working pressure, working temperature, heat transfer coefficient and installation method of the teflon heater vary greatly according to different types, different shell materials and different thermal media.The chemical properties of teflon are very stable and the corrosion resistance is especially good.The surface of the teflon tube is smooth and moderately flexible, so it is not easy to scale due to the slight vibration when using it.The teflon heater is small in size and compact in structure. The heat transfer area per unit volume of the equipment is more than 4 times of that of the shell heater.Flexible teflon tubes work safely under shock and vibration of fluids, and the tubes can be made into special shapes as needed.Teflon has low thermal conductivity, poor mechanical properties than metal, and is not resistant to high temperature.The use of small diameter, thin wall, although the thermal conductivity and mechanical properties of compensation, but can only be used in the case of low pressure and low temperature.The production of teflon steam heater and teflon hot water heater has become more and more mature, and widely used in chemical industry, medicine, pickling and other corrosive industries.
PTEF Immersion Heaters,Ptfe Immersion Heater Element,Fluoropolymer Heaters Guangzhou Quanxu Technology Co Ltd , https://www.skyelecteflonheater.com
Because diesel engine combustion and exhaust emissions are different from gasoline engines, many new technical terms appear in the introduction of diesel vehicles and diesel vehicles are named for such as Jetta SDI and Bora 1.9TDI. Because diesel engine combustion and exhaust emissions are different from gasoline engines, many new technical terms appear in the introduction of diesel vehicles and diesel vehicles are named for such as Jetta SDI and Bora 1.9TDI.