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为满足非道路用途开发了新型卧式2D25柴油机。该发动机在机体结构布置、润滑和冷却系统等设计上采取许多新的技术方案和措施。详细介绍了该柴油机的结构设计、主要零部件和系统特点以及燃烧过程的开发和性能试验。结果表明:该发动机标定功率为37 kW(2 400 r/min)、最大扭矩167 N.m(1 600～1 700 r/min)、最低燃油消耗率224g/(kW.h)、机油消耗率小于0.3 g/(kW.h),达到中国非道路用柴油机第2阶段排放限值,是一款可以用于配套农业机械、工程机械、林业机械、材料装卸机械、内河机动船、发电机组等用途的直喷式柴油机。
New horizontal 2D25 diesel engine developed for non-road use. The engine in the body structure layout, lubrication and cooling system designed to take many new technical programs and measures. The structural design, main components and system characteristics of the diesel engine and the development and performance test of the combustion process are introduced in detail. The results show that the rated power of this engine is 37 kW (2 400 r / min), the maximum torque is 167 Nm (1 600 ~ 1 700 r / min), the minimum fuel consumption is 224 g / (kW.h) and the oil consumption is less than 0.3 g / (kW.h), which meets the emission limit of phase 2 of non-road diesel engine in China. It is a type of diesel engine that can be used in agricultural machinery, construction machinery, forestry machinery, material handling machinery, river motor boat, generator set, etc. Direct injection diesel engine.