概述多缸小柴油机系指缸数≤4的2、3、4缸柴油机,由于2、3缸总量较少,所以本文仅讨论4缸柴油机。随着发动机的高功率密度、轻量化技术的发展,以及对污染物排放限值的苛刻要求,增压及增压中冷技术已成为柴油机满足节能减排达标的不可或缺配置。因此,现在的4缸柴油机功率已高达150kW,成为中、轻、微型商用车、 Overview Multi-cylinder small diesel engine refers to the 2,3,4 cylinder number of cylinder ≤ 4, 2,3 cylinder total less, so this article discusses only the 4-cylinder diesel engine. With the development of high power density and light weight technology of engine, as well as the harsh demands of pollutant emission limits, supercharged and supercharged intercooled technology has become an indispensable configuration for diesel engines to meet the energy saving and emission reduction standards. Therefore, the current 4-cylinder diesel engine power has been as high as 150kW, a medium, light, miniature commercial vehicles,