How to accurately optimize lubrication strategies for high-pressure common rail systems of new diesel engines?
Publish Time: 2024-12-12
With the continuous development of diesel engine technology, the high-pressure common rail systems of new diesel engines have put forward more stringent requirements for lubrication. Synthetic diesel engine oil accurately optimizes lubrication strategies to meet its needs through multi-faceted innovation and adaptation.The fuel injection pressure in the high-pressure common rail system has been greatly increased, which makes the fuel pump, fuel injector and other components bear extremely high mechanical and thermal loads. Synthetic diesel engine oil is first optimized in the selection of base oil. The use of high-quality synthetic base oil has a more regular and uniform molecular structure and has excellent high-temperature stability and low-temperature fluidity. At high temperatures, it can effectively resist oxidation and decomposition, form a stable lubricating oil film, and reduce friction and wear between components. At low temperatures, it quickly flows to various lubrication parts to ensure that the engine can also be well protected during the cold start phase and avoid damage caused by insufficient lubrication at the start moment.Additive formulation is a key link in accurately optimizing lubrication strategies. For high-pressure common rail systems, special anti-wear additives are added to synthetic diesel engine oil. These additives can form a strong and self-repairing protective film on the surface of the friction pair at high pressure and high speed. For example, some additives containing elements such as phosphorus and sulfur react chemically with the metal surface during the friction process to generate compounds with low shear strength, reduce the friction coefficient, and when the protective film is damaged, it can be repaired in time to continuously protect precision parts such as the injector nozzle.In addition, in order to cope with the high heat load of the high-pressure common rail system, synthetic diesel engine oil also adds efficient antioxidants and thermal stabilizers. They can inhibit the oxidation reaction of lubricating oil at high temperatures and prevent the formation of deposits such as sludge and paint film. Because once these deposits are formed, they may clog the tiny spray holes of the injector nozzle, affect the accuracy and atomization effect of fuel injection, and thus reduce the performance and fuel economy of the engine.At the same time, synthetic diesel engine oil also pays attention to the compatibility with the sealing materials of the high-pressure common rail system. Through strict formula design, it ensures that the lubricating oil will not cause erosion or swelling to rubber seals, etc., ensure the sealing of the system, prevent fuel leakage and lubricating oil pollution, so as to maintain the normal operating pressure and stable performance of the high-pressure common rail system.In summary, synthetic diesel engine oil provides comprehensive, accurate and reliable lubrication strategy optimization for the high-pressure common rail system of new diesel engines from multiple dimensions such as anti-wear, anti-oxidation, thermal stability and sealing compatibility through careful selection of base oil and precise design of additive formula, helping diesel engines to continue to develop on the path of high efficiency, stability and environmental protection.
