潤滑油的黏度不僅僅潤滑油歸類的依據(jù)，而且也與柴油發(fā)動機(jī)的輸出功率非己、健身運(yùn)動零部件的損壞水平、活塞環(huán)的密封性水平、潤滑油及隨后的銷售量量、柴油發(fā)動機(jī)冷啟動的輕捷性、零配件的溫度等息息相關(guān)，假如光滑油的粘度過大，會有以下幾個方面的問題。
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.
柴油發(fā)動機(jī)超低溫啟動艱難，機(jī)油粘度過大，在柴油發(fā)動機(jī)超低溫啟動時打油很慢，汽壓雖然高，但汽車機(jī)油歷經(jīng)量不多，主要由于黏度大，油的泵送性能差，此時容易展現(xiàn)臨時的干矛盾或半流體矛盾，這是發(fā)動機(jī)磨損的首要原因。試驗(yàn)證明，自發(fā)動機(jī)發(fā)動時，去后滾動所需的轉(zhuǎn)矩就大，因而轉(zhuǎn)速低，不易發(fā)動。
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.
輸出功率遺失大，機(jī)油粘度大，零部件矛盾表面的矛盾摩擦阻力也就加上，那樣不只使零部件損壞加上，而且矛盾遺失輸出功率也加上，與此同時，發(fā)動機(jī)曲軸攪拌成品油成品油的摩擦阻力也會擴(kuò)大，構(gòu)成發(fā)動機(jī)內(nèi)部的丟失功率增多，也就降低了發(fā)動機(jī)的有用功率。
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. 。
水冷卻實(shí)際效果差，機(jī)油粘度大，流通性差，循環(huán)系統(tǒng)很慢，從矛盾表面帶去發(fā)熱量的速率也就慢，其水冷卻實(shí)際效果也就差，易造成柴油發(fā)動機(jī)超溫，清理實(shí)際效果差，汽車機(jī)油難度系數(shù)大，油的循環(huán)速度慢，經(jīng)過濾清器的次數(shù)也就少，不能及時把磨損下來的金屬碎屑、碳粒、塵土等雜志從沖突外表帶走。
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.69ltm4.cn/