高压共轨燃油喷射系统针阀体加工工艺研究  

Research on Shape Processing Technology of Nozzle Body for CRS

作　　者：周频频 ZHOU Pinpin(Wuxi Weifu High-Technology Group Co.,Ltd.,Wuxi 214031,China)

机构地区：[1]威孚高科技集团股份有限公司,江苏无锡214031

出　　处：《现代车用动力》2023年第1期58-62,共5页Modern Vehicle Power

摘　　要：日益严格的排放法规,对柴油机提出了更高的技术要求,高压共轨燃油喷射技术是目前能够满足国Ⅳ及以上排放法规的主要技术方案,其通过高喷射压力、电控喷射系统实现了多次喷射、精确控制、充分雾化,使柴油燃烧更充分、排放污染物更少。燃油喷射的执行零件喷油嘴偶件的关键部分是针阀体。针阀体加工工艺,尤其是精密磨削加工工艺有很大难度,对设备、工艺及工装的设计有着严苛的要求,通过对喷油嘴加工工艺的研究,提升国内喷油嘴偶件制造能力。The increasingly strict emission laws and regulations have put forward higher technical requirements for diesel engines.Common rail system is the main technology that can meet the CN-Ⅳ.It realizes multiple injection,precise control and full atomization through high injection pressure and electronic injection control,so that the diesel combustion is fuller and the emission of pollutants is less.The key part of the nozzle of fuel injection is the nozzle body.The nozzle body processing technology,especially the precision grinding process,is very equipment,process and tooling has strict requirements.Through the research of the nozzle processing technology,it will be beneficial to improve the manufacturing capacity of the nozzle.

关 键 词：高压共轨 喷油嘴偶件 针阀体 加工工艺 外形磨削 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]