基于激光测振技术的共轨喷油器衔铁运动规律研究  

Study on Armature Motion Law Based on Laser Doppler Vibrometer Method of Common Rail Injector

作　　者：雍占琦 刘星 管金栋 邹安南 YONG Zhanqi;LIU Xing;GUAN Jindong;ZOU Annan(Machinery Technology Development Co.,Ltd.,Beijing 100044,China)

机构地区：[1]机科发展科技股份有限公司,北京100044

出　　处：《现代车用动力》2021年第2期34-37,共4页Modern Vehicle Power

摘　　要：共轨喷油器衔铁行程是喷油器总成装配制造的关键指标。目前国内对衔铁行程的测量大多是间接测量。介绍了基于激光测振技术的共轨喷油器总成衔铁行程测试方法并开发了相应设备,该方法能够实现对衔铁杆端面直接进行高精度、高频响的测量,能够清晰地检测出衔铁上升过程速度波动和落座阶段不规则跳动,能够有效反映衔铁杆的实际运动情况。Armature stroke of common rail injector is a key factor for injector performance.Armature stroke measurement in China is mostly based on indirect measurement.It introduces the test method of armature stroke based on laser doppler vibration measurement technology and the corresponding equipment is developed.This method can realize the direct high-precision and high-frequency measurement of the armature movement.It can also clearly detect the speed fluctuation in the armature rising process and the irregular jumping in the descending stage.This method can effectively reflect the actual movement of the armature.

关 键 词：共轨喷油器 衔铁行程 激光测振 高频测量 

分 类 号：TK426[动力工程及工程热物理—动力机械及工程]