发动机热平衡台架试验的实践

Practice of Engine Thermal Balance Bench Test

发动机热平衡情况,是分析评价设计状态尤其是冷却系统性能的重要依据,是发动机进行持续优化的重要基础。相对于整车状态下的试验评价,发动机台架试验具有工况完整、控制便利可靠等优点。本文结合某款汽油发动机实际,通过试验分析,提供了一个完整评价发动机热平衡构成的方式,具有较好的工程应用效果。

The thermal balance of the engine is an important basis for analyzing and evaluating the design state,especially the performance of the cooling system,and is an important basis for the continuous optimization of the engine.Compared with the test evaluation under vehicle condition,the engine bench test has the advantages of complete working condition,convenient and reliable control.Combining with the practice of a gasoline engine,this paper provides a complete evaluation method of engine thermal balance composition through test analysis,which has a good engineering application effect.