今后几年里,船用柴油机的发展,在性能和效率方面将在很大程度上取决于高效废气涡轮增压器的应用。一般宁愿采用一级涡轮增压器,而在过去几年里,增压器的效率已提高到能产生过量增压空气,这意味着很高的压比在短期内不需要,特别是对于二冲程低速机。但是现代四冲程机约以24～25巴的平均有效压力运行。这要求涡轮增压器的压气机压比为3.8～4。在最近的将来,平均有效压力很可能达到28巴。因此,增压 In the next few years, the development of marine diesel engines will largely depend on the use of efficient exhaust gas turbochargers in terms of performance and efficiency. Turbochargers are generally preferred and in the past few years the turbocharger has been increased in efficiency to produce excess charge air, meaning that high pressure ratios are not required in the short term, especially for two Stroke low speed machine. However, modern four-stroke machines operate at an average effective pressure of 24 to 25 bar. This requires turbocharger compressor pressure ratio of 3.8 ~ 4. In the near future, the average effective pressure is likely to reach 28 bar. Therefore, boost