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为了进一步提高二冲程和四冲程柴油机的比功率,要求采用能以4.5和更高压比可靠工作的涡轮增压器。近年来,MANB&W柴油机公司开发了一种能完全满足这一要求的新一代涡轮增压器。文中介绍了新开发的采用轴流式涡轮的NA系列涡轮增压器和采用径流式涡轮的NR系列涡轮增压器的主要结构特点和一些试验结果。
To further increase the specific power of two-stroke and four-stroke diesel engines, turbochargers that work reliably at 4.5 and higher pressure ratios are required. In recent years, MANB & W Diesel has developed a new generation of turbochargers that fully meet this requirement. This paper introduces the main structural features and some test results of the newly developed NA series turbochargers with axial turbines and NR series turbochargers with radial turbines.