农业机械学报2012，Vol.43Issue(11)：7-10,4.DOI:10.6041/j.issn.1000-1298.2012.11.002
高压燃油系统电磁控制阀区域流动特性试验
Flow Characteristic Experiment of Solenoid Valve Region for High-pressure Fuel System
摘要
Abstract
The flow characteristics of solenoid valve region of electronic unit pump ( EUP) . EUP was rebuilt by using optical visualization observation. A diaphanous glass window was designed in the pump, and the transient flow in the solenoid valve outlet was observed by a high-speed camera. By gray processing of pictures, the brightness curve within the control valve region was acquired. Results showed that cavitation occurred in control valve of EUP and formed the two phase flow phenomenon. The formation of cavitation had two factors, one was due to flow region in control valve where high-speed fuel flow within was quiet narrow, another reason was that the control valve hit the baffle which caused vibration and impingement, hence the fuel was extruded.关键词
柴油机/单体泵/电磁阀/流动特性Key words
Diesel engine/ Unit pump / Solenoid valve/ Flow characteristic分类
能源科技引用本文复制引用
仇滔,雷艳,彭璟,李旭初..高压燃油系统电磁控制阀区域流动特性试验[J].农业机械学报,2012,43(11):7-10,4.基金项目
国家自然科学基金资助项目(51006012) （51006012）
