The viscosity of lubricating oil is not only the basis of classification of lubricating oil, but also closely related to the output power of diesel engine, the damage level of fitness parts, the sealing level of piston rings, lubricating oil and subsequent sales volume, the lightness of cold start of diesel engine and the temperature of spare parts. If the viscosity of lubricating oil is too high, the following questions will be asked. Question.
It is difficult for diesel engine to start at ultra-low temperature, and the oil viscosity is too high. When diesel engine starts at ultra-low temperature, the oil is pumped very slowly. Although the steam pressure is high, the amount of automobile oil experienced is not much. It is mainly due to the high viscosity and poor pumping performance of the oil. At this time, it is easy to show temporary dry or semi-fluid contradictions, which is the primary cause of engine wear. The test proves that when the engine is started, the required torque for rolling after removal is large, so the speed is low and it is not easy to start.
The loss of output power is large, the oil viscosity is high, and the contradictory frictional resistance on the contradictory surface of the parts is added, which not only damages the parts, but also adds the contradictory loss of output power. At the same time, the friction resistance of the engine crankshaft mixing the finished oil will also expand, and the loss power inside the engine will increase, thus reducing the useful power of the engine. 。
The actual effect of water cooling is poor, the oil viscosity is high, the circulation is poor, the circulation system is very slow, the rate of heat generation from the contradictory surface is slow, and the actual effect of water cooling is also poor. It is easy to cause diesel engine overtemperature, poor cleaning effect, high difficulty coefficient of automobile oil, slow circulation speed of oil, less times of passing through filters, and can not wear down gold in time. Magazines such as debris, carbon and dust were taken away from the surface of the conflict.http://www.sdpsrhy.com/