车用涡轮增压柴油机低速和加速性能研究分析

Study on the Turbine Supercharger Engine Performance at a Low Speed and Accelerated Speed

随着涡轮增压柴油发动机转速下降,其外特性降低,转矩减小,与车用柴油机需扭矩增大不符。为了使其性能与柴油机在负荷和转速变化频繁的整个工作范围内有一良好匹配,需选用合适的增压器和排气系统等来提高其低速和加速性能。

With the slowdown of turbine supercharger engine,the outer charactristic and output torque of it decreases a bit, but it dose not accord with the demand of the automobile. The proper supercharger and the exhaust system should be used to match each other suitably during the whole working condition and to improve the performance at a low speed or accelerated speed.