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发动机是汽车的动力核心,关系着汽车的动力性、经济性、环保性。发动机是一个能量转换机构,通过燃料在密封汽缸内燃烧气体膨胀,推动活塞作功,转变为机械能。各机构间存在在相对运动,在高温高速有化学腐蚀的情况下工作,如果使用和维护不当则会照成某一总成或部件的早期损坏,影响发动机的动力性、经济性和使用寿命,导致发动机会早期损坏,从而增加运行成本。工作性能的好坏直接影响到运输成本和生产效率,分析发动机早期损坏的原因,针对不同的状况找出对应的预防措施,对于提高汽车的使用经济性有十分重要的意义。
Engine is the power of the car core, related to the car’s power, economy, environmental protection. The engine is an energy conversion mechanism, which expands the combustion gas in the sealed cylinder by the fuel to promote the work of the piston and transform it into mechanical energy. Various agencies exist in the relative movement in the high temperature and high chemical corrosion under the circumstances, if used and maintained properly will be grouped into an assembly or component of the early damage, affecting the engine power, economy and service life, Resulting in early damage to the engine, thereby increasing operating costs. The performance of the work directly affects the cost of transportation and production efficiency, analysis of the reasons for the early damage to the engine, to find out the corresponding precautions for different conditions, for improving the economy of the car has a very important significance.