农业机械学报2013，Vol.44Issue(3)：1-5,37,6.DOI:10.6041/j.issn.1000-1298.2013.03.001
进气道燃料喷射氢内燃机回火机理与控制研究
Backfire Mechanism and Control of PFI Hydrogen Internal Combustion Engine
摘要
Abstract
A 3-D simulation model including the inlet and the cylinder was built to study the backfire mechanism of PFI hydrogen internal combustion engines. A method controlling the backfire was put forward through optimizing the hydrogen injection angle. The low concentrated mixture gas was flow into the cylinder first after the intake valve opening, which can then lower the temperature of the exhaust gas and hot point inside the chamber. Based on the simulation model, the hydrogen injection angle influenced on the concentration and temperature of the mixture gas with the engine at different working speeds and conditions was investigated. The optimized hydrogen injection angle causing no backfire in all working conditions were found. It was proved by the experiment that the hydrogen internal combustion engine with the optimized hydrogen injection angle worked normally without backfire when the equivalent fuel air ratio of mixture gas reaching or even exceeding the stoichiometric fuel-air ratio within the speed range.关键词
进气道燃料喷射/氢内燃机/回火控制/喷氢相位Key words
Port fuel injection/Hydrogen internal combustion engine/Backfire control/Ignition timing分类
能源科技引用本文复制引用
段俊法,刘福水,孙柏刚..进气道燃料喷射氢内燃机回火机理与控制研究[J].农业机械学报,2013,44(3):1-5,37,6.基金项目
国家高技术研究发展计划(863计划)资助项目(2006AA11A1B6)和国家自然科学基金资助项目(51276019) （863计划）
