优化喷油泵参数提高柴油机冷起动性能  

Improve Diesel Engine's Cold-Start Performance by Optimize Parameters of Injection Pump

作　　者：王政[1,2] 王艳利 刘威 姜铭坤 丁晓兴[2] 郑煜 陈希颖[2] 张雄伟 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030 [2]中国一汽无锡油泵油嘴研究所,江苏无锡214063 [3]龙泵燃油喷射有限公司,山东龙口265701 [4]无锡柴油机厂,江苏无锡214026

出　　处：《现代车用动力》2010年第4期38-42,47,共6页Modern Vehicle Power

摘　　要：为了解决4DX柴油机冷起动困难的问题,从喷油泵着手进行改进,对起动油量、供油提前角、柱塞参数、出油阀型式及怠速调速率对起动性能的影响规律进行了研究,并通过试验对这些参数进行优化匹配。结果表明:通过对喷油泵参数优化,提高了柴油机的冷起动性能,同时保证其他工况性能不受影响,满足了实际车用柴油机的使用要求。In order to solve the cold starting issue of the 4DX diesel engine.The parameters of injection pump,such as the inje ction quantity,the injection timing,the plunger parameters,the type of delivery valve and the idle governing rate,their effects on engine starting performance are studied,and optimized through engine cold start test.By optimize these parameters of the injection pump,it could improve starting performance without changing the other performance of the engine.Therefore,it meets the requirements of auto-mobile application.

关 键 词：柴油机 冷起动 喷油泵 

分 类 号：TK423.7[动力工程及工程热物理—动力机械及工程]