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Simulation of the Secondary Air Injection System for JS125-12A Motorcycle
Author(s): 
Pages: 298-302
Year: Issue:  4
Journal: TRANSACTIONS OF BEIJING INSTITUTE OF TECHNOLOGY

Keyword:  摩托车二次空气喷射废气排放;
Abstract: 为了提高二次空气喷射系统的补气效果,建立了摩托车发动机模型,应用内燃机性能分析软件AVL BOOST,对JS125-12A型摩托车发动机进行性能计算,并与试验值进行了对比分析.在此基础上,建立二次空气喷射系统模型,并对包括补气孔位置、补气管直径、补气角度以及补气阀簧片刚度等二次空气喷射系统的主要设计参数进行性能预测和优化.结果显示,二次空气喷射点与排气口的距离为30 mm,补气管直径为8 mm,补气角度选择30°~60°,簧片刚度在100~500 N/m之间取值时,二次空气喷射系统与发动机有最佳匹配.
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