PP-LGF进气歧管的性能研究  

Performance of PP-LGF Intake Manifold

作　　者：李志通[1,2] 高梦鸾[1,2] 尹晶晶[1,2] 李贺[1,2] 崔文兵[1,2] 魏元生[1,2] 

机构地区：[1]长城汽车股份有限公司技术中心,河北保定071000 [2]河北省汽车工程技术研究中心,河北保定071000

出　　处：《车用发动机》2016年第3期83-87,共5页Vehicle Engine

基　　金：国汽(北京)汽车轻量化技术研究院有限公司支持(QYY-KT-2013-001)

摘　　要：为了研究PP-LGF(PP长玻纤)进气歧管的性能及机理,首先利用Moldflow仿真手段对比分析了PAGF(PA短玻纤)与PP-LGF进气歧管中纤维及残余应力分布情况,再按照标准试验方法利用相应的工装夹具开展气密爆破、老化耐久、可靠性台架等性能检测分析。结果表明:PP-LGF相比PA-GF残余应力分布较为均匀;PP-LGF进气歧管泄漏量在7.5mL/min左右,水爆压力最高达到了0.740 MPa。上述测试均能够满足1.5L及以下排量自然吸气发动机的使用要求。To study the property and mechanism of PP-LGF (PP long glass fiber) intake manifold ,the glass fiber and residual stress distribution of PA-GF (PA short glass fiber) and PP-LGF fiber intake manifold were compared by the simulation method of Moldflow and the air tightness ,burst strength ,aging property and reliability performance were tested and analyzed accord-ing to the standard test method by using the relevant fixing tools .The results showed that the residual stress distribution of PP-LGF intake manifold was more uniform .The leakage rate of PP-LGF intake manifold was about 7 .5 mL/min and the maxi-mum bearing pressure for water was 0 .74 MPa .All the tests mentioned before could meet the requirements of all naturally as-pirated engines with displacement of 1 .5 L and below .

关 键 词：PP长玻纤 进气歧管 仿真 气密性 老化 可靠性 

分 类 号：TK413.4[动力工程及工程热物理—动力机械及工程]