LJ276M电喷汽油机进气系统设计及优化  

Optimization and Design on Intake Systems for LJ276M EFI Gasoline Engine

作　　者：侯献军[1] 巩学军[1] 方丹[1] 于佳[1] 

机构地区：[1]武汉理工大学汽车工程学院,武汉430070

出　　处：《武汉理工大学学报（交通科学与工程版）》2009年第4期635-638,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家863计划项目资助(批准号:2006AA060307)

摘　　要：在LJ276M汽油机原机参数和设计要求基础上,运用亥姆霍兹理论计算谐振频率、进气管长度及管径等结构参数,快速设计全新谐振进气系统.应用仿真软件GT-Power建立LJ276M电喷汽油机工作过程计算模型,通过采用快速成型技术及试验验证方法最终确定进气系统各结构参数.试验证明装配优化计算后的进气系统后,发动机的功率和转矩的最大增幅均达到13%.Based on the design requirements and baseline engine s parameters of LJ276M gasoline engine,the structural parameters such as the tuned frequency、length and diameter of intake manifold and so on are calculated.The brand new tuned intake system is quickly designed.A simulation model is established based on GT-Power software.Finally the paper establishs the structure parameters of intake system through adopting rapid prototype technique and testing verification.The experimental results have shown that the largeset increase of the power and torque of this engine have reached 13% afterassembling the brand new intake system.

关 键 词：GT-POWER 进气歧管 优化计算 

分 类 号：U464.171[机械工程—车辆工程] TK417[交通运输工程—载运工具运用工程]