电控喷油器喷雾特性测试平台的开发  

Development on Test Platform for Spray Characteristics of Electronic Injector

作　　者：许沧粟[1] 刘凯 陈冲 苏茂辉 李孝禄 周文华[1] XU Cangsu;LIU Kai;CHEN Chong;SU Maohui;LI Xiaolu;ZHOU Wenhua(Power Machinery&Vehicular Engineering Institute,Zhejiang University,Hangzhou 310027,China;Zhejiang Yuancheng Commercial Vehicle Research and Development Co.,Ltd.,Hangzhou 311288,China;College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou 310018,China)

机构地区：[1]浙江大学动力机械及车辆工程研究所,杭州310027 [2]浙江远程商用车研发有限公司,杭州311288 [3]中国计量大学机电工程学院,杭州310018

出　　处：《实验室研究与探索》2022年第9期71-75,共5页Research and Exploration In Laboratory

基　　金：浙江省高等教育“十三五”第一批教学改革研究项目(jg20180132);宁波市重大科技攻关项目(2021ZDYF020041)。

摘　　要：设计并搭建了以定容弹为基础的电控喷油器喷雾特性测试平台,主要由定容弹、燃料供给系统、数据采集系统和时序控制系统等部分组成,能够便捷地调整和检测各种环境参数和喷射控制参数。该测试平台包括一套由喷油器、预混室和混合气喷射器3个可独立拆卸部分组成的空气辅助喷射系统,能够更直接地进行有/无空气辅助的喷雾特性对比研究。通过甲醇低压喷雾特性和柴油空气辅助喷雾特性实验对测试平台的可行性和有效性进行了验证,结果表明,该平台具有构造简单、使用方便等特点。同时,该测试平台可用于本科生的实验教学,提高学生对实验平台设计和喷雾特性实验的理解,掌握喷雾相关原理、实验研究及数据处理的方法。The test platform for spray characteristics of electronic injector based on the constant volume chamber is developed,which is mainly composed of constant volume chamber,fuel supply system,data acquisition system and timing control system.It can conveniently change various environmental parameters and injection control parameters.In addition,an air-assisted injection system is designed,so that the three main parts of the fuel injector,premixing chamber and mixture injector can be disassembled independently,thus,better comparative investigation with and without air-assisted injection technology can be done by replacing the injector.The feasibility and validity of the test device are verified by experiments on methanol low-pressure spray characteristics and diesel air-assisted spray characteristics.The results show that the platform is simple and convenient.Furthermore,the test platform can be applied to the experimental teaching of undergraduates to improve students’understanding of experimental platform design and spray characteristics experiments,so that students can understand and master the relevant principles,experimental research and data processing methods.

关 键 词：电控喷油器 喷雾特性 空气辅助 测试平台 定容弹 

分 类 号：TK407.9[动力工程及工程热物理—动力机械及工程]