14/03/2025
In the booming development process of the modern automotive industry, the high-pressure common rail technology of traditional fuel vehicles has greatly improved the fuel injection accuracy and combustion efficiency, thereby enhancing the engine's power performance, reducing fuel consumption and emissions. This technology has also achieved excellent performance in the application of new energy extended-range hybrid vehicles. The pressure has continuously increased from the initial 15 MPa to 65 MPa. The processes and technologies of components such as fuel common rails, fuel inlet pipes, and fuel injection system assemblies have all made great progress. However, to achieve these advantages, the high-pressure common rail system must maintain a high degree of tightness. Because any tiny leak may lead to unstable fuel pressure, affect injection accuracy, reduce engine performance and reliability, and even bring safety hazards.
CO₂ air conditioning, as an environmentally friendly automotive air conditioning system, has many advantages. Firstly, CO₂, as a natural refrigerant, has minimal impact on the environment, does not damage the ozone layer, and its global warming potential is much lower than that of traditional refrigerants. Secondly, the CO₂ air conditioning system has higher cooling efficiency and can provide stronger cooling effect at lower energy consumption. However, the CO₂ air conditioning system needs to operate at a state of 17 MPa, which imposes extremely strict sealing requirements on the compressor, valves, air conditioning pipes, and assembly connections of the air conditioning system. Once there is a leak, it will not only reduce the cooling effect but also may cause adverse environmental impacts.
