| 进气管结构对天然气发动机性能影响的模拟与试验研究 |
| |
| 引用本文： | 杨立平,李君,马修真,高莹. 进气管结构对天然气发动机性能影响的模拟与试验研究[J]. 车用发动机, 2010, 0(4) |
| |
| 作者姓名： | 杨立平 李君 马修真 高莹 |
| |
| 作者单位： | 1. 哈尔滨工程大学动力与能源工程学院,黑龙江,哈尔滨,150001
2. 吉林大学汽车工程学院,吉林,长春,130025 |
| |
| 基金项目： | 中国博士后科学基金，哈尔滨市科技攻关计划项目，中央高校基本科研业务费专项基金 |
| |
| 摘 要： | 利用数值模拟与试验研究相结合的方法分析了进气管结构对天然气发动机性能的影响。结果表明,进气过程中人字形进气管气流运动方向产生较大回转,歧管入口处产生较大涡流,导致流动损失增加,且2缸和3缸存在受相邻进气气缸抢气的现象,造成的各缸进气不均匀性可达6.69%,而谐振进气管不仅各缸的充气量高于人字形进气管,而且各缸进气不均匀性只有3%左右,采用谐振进气管时发动机动力性、经济性和排放性能得到明显改善。
|
| 关 键 词： | 天然气发动机 进气不均性 流动分布 |
The Influence of Intake Manifold Structure on Natural Gas Engine Performance |
| |
| YANG Li-ping,LI Jun,MA Xiu-zhen,GAO Ying. The Influence of Intake Manifold Structure on Natural Gas Engine Performance[J]. Vehicle Engine, 2010, 0(4) |
| |
| Authors: | YANG Li-ping LI Jun MA Xiu-zhen GAO Ying |
| |
| Affiliation: | YANG Li-ping1,LI Jun2,MA Xiu-zhen1,GAO Ying2(1.College of Power , Energy Engineering,Harbin Engineering University,Harbin 150001,China,2.College of Automobile Engineering,Jilin University,Changchun 130025,China) |
| |
| Abstract: | The influence of intake manifold structure on natural gas engine performance was studied with the simulation and experiment method.The results show that the herringbone intake manifold makes intake air flow have a large turn,which produces a large swirl in the inlet of manifold and results in the increase of flow loss.In addition,the intake air flow of 2nd and 3rd cylinder is influenced by other cylinders and the intake nonuniformity between cylinders can reach 6.69%.With the resonant intake manifold,the vo... |
| |
| Keywords: | natural gas engine intake nonuniformity flow distribution |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
