把成批生产的运输式发动机的经济性,热负荷和机械负荷保持在容许的水平上而提高升功率,是实行原准机型现代化的基本方法之一。这个方法完全适于涡轮增压柴油机。但是,涡轮增压柴油机不论是靠提高平均有效压力P_c,还是靠提高速度工况n,或者靠这两种方式的一定组合来实现强化,一般说来都会使活塞,气缸套,气缸盖的热负荷提高,使曲柄连杆机构零件和连接件的机械应力增大。分别改变P_2、n或者这两个参数同时改变时,如何客观地评价运输式涡轮增压柴油机进一步强化的合理途径,仍是一个很复杂的问题。遗憾的是,到目前还没 It is one of the basic methods to modernize the quasi-standard model that the economy, heat load and mechanical load of mass-produced transport-type engines are kept at permissible levels to increase the ascending power. This method is completely suitable for turbocharged diesel engines. However, turbocharged diesel engine, whether by increasing the average effective pressure P_c, or by increasing the speed of the working conditions n, or by a combination of these two ways to achieve reinforcement, in general, will make the piston, cylinder liner, cylinder head heat The increased load increases the mechanical stress on the crank link components and connections. How to objectively evaluate the reasonable ways to further strengthen the transport turbocharged diesel engine is still a very complex issue when changing P_2, n respectively or when the two parameters change at the same time. Unfortunately, not yet