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目前国内外都在从发动机的设计结构上考虑降低油耗,即采用转子部件和静子部件之间最小而又合理的间隙结构,如蜂窝结构、双金属、封严涂层等。实践证明,采用涂层的办法是一种较理想的解决办法,即把涂层涂覆在旋转件和静子件上,当发动机工作时,动、静件之间产生干涉、磨擦、磨损一部分涂层,从而得到了发动机工作状态下的最小间隙。这样可提高发动机的工作效率,改善性能,节约能源,降低油耗0.8～1％左右,并使发动机的使用寿命提高。
Currently at home and abroad are considering the design of the engine to reduce fuel consumption, that is, the rotor components and stator components between the smallest and reasonable gap structure, such as honeycomb structure, bimetal, seal coating. Practice has proved that the use of coating approach is a more ideal solution, the coating is applied to the rotating parts and static parts, when the engine work, dynamic and static parts of the interference, friction, wear a portion of the coating Layer, which has been the engine working condition of the smallest gap. This can improve the work efficiency of the engine, improve performance, save energy, reduce fuel consumption of about 0.8 to 1%, and to improve the service life of the engine.