| 带二次补气的通用小型汽油机排气气体流动的研究 |
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| 引用本文： | 胡鹏,姚喜. 带二次补气的通用小型汽油机排气气体流动的研究[J]. 内燃机与动力装置, 2011, 0(4): 47-50,53 |
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| 作者姓名： | 胡鹏 姚喜 |
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| 作者单位： | 安徽熔盛机械有限公司,安徽合肥,230601 |
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| 摘 要： | 为了应对美国EPA第Ⅲ阶段非道路用点燃式发动机排放法规,本文通过AVLBOOST软件建立起168F通用小型汽油机的工作模型,对排气压力波动和补气量进行模拟计算,给出了二次补气的工作机理和补气量随工况的变化规律。经计算表明,采用二次补气能够较好的降低排放,为通用小型汽油机使用二次补气降低排放提供了有效的手段,具有普遍应用价值。同时经试验验证:单独采用二次补气的汽油机在劣化后整机排放完全达到美国EPA2011年的排放法规限值。
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| 关 键 词： | 通用小型汽油机 二次补气 排气压力 |
The Study of Exhaust Gas Flows on Non-road Small Spark-ignition Engine with the Secondary Air |
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| HU Peng,YAO Xi. The Study of Exhaust Gas Flows on Non-road Small Spark-ignition Engine with the Secondary Air[J]. Internal Conbustion Engine & Power Plant, 2011, 0(4): 47-50,53 |
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| Authors: | HU Peng YAO Xi |
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| Affiliation: | (Anhui Rongsheng Machinery Co.,Ltd.,Hefei 230601,China) |
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| Abstract: | In order to satisfy the EPA phase Ⅲ emission regulation,a working model for 168F non-road small spark ignition engine is established by AVL BOOST.On the basis,the exhaust pressure and the intake air quantity are calculated and analyzed,and it reveals the working principle of the secondary air and the change of the intake air quantity and the working situation.The result shows that the emission has been decreased by the secondary air and it is important and value to offer the method of decrease the emission by the secondary air.At the same time,the experiment shows that the emission with the secondary air is completely in conformity with the EPA emission regulation. |
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| Keywords: | Non-road Small Spark-ignition Engine The Secondary Air Exhaust Pressure |
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