按使用工况改善重型柴油机经济性的研究  

Study on the Improvement of Heavy-Duty Engine Fuel Economy at the Operating State

作　　者：李文祥[1] 崔晓娟[1] 曹礼军[1] 刘金玉[1] 史艳彬[1] 

机构地区：[1]中国第一汽车集团公司技术中心

出　　处：《汽车技术》2008年第5期14-17,共4页Automobile Technology

摘　　要：对重型柴油机运行工况进行了分区,并分析了CA6DL系列柴油机常用工况。以CA6DL2-35型柴油机为例,探讨了按使用工况改善重型柴油机经济性的方法。试验结果表明,在高于1600r/min的中高转速区域内,改进后CA6DL2-35型柴油机较对比柴油机油耗降低0～2g/(kW·h);在1200～1600r/min的中低转速区域内,较对比柴油机油耗降低0～4g/(kW·h);在800～1000r/min的区域内,较对比柴油机油耗高0～5g/(kW·h)。The operating state in common use of series engine CA6DL was analyzed and the operating state of heavy-duty diesel engine was divided into several parts.Take engine CA6DL2-35 as an example, the improvement method of heavy-duty diesel engine fuel economy at the operating state was studied.The test results showed that the fuel consumption of the modified diesel engine CA6DL2-35 reduced 0-2 g/（kW·h） over the speed 1 600 r/min,reduced 0-4 g/（kW·h） between 1 200 and 1 600 r/min and increased 0-5 g/（kW·h） between 800 and 1 000 r/min.

关 键 词：重型柴油机 常用工况 油耗 

分 类 号：U464.72[机械工程—车辆工程]