风冷柴油机汽缸套缸内传热边界条件  

The Conduct-boundary Condition in Cylinder of Air-cooled Diesel Engine

作　　者：姬芬竹[1] 杜发荣[1] 张桂香 许建民 

机构地区：[1]洛阳工学院汽车工程系，河南 洛阳 471039 [2]新乡内燃机厂，河南 新乡 453021 [3]中信重型机械公司，河南 洛阳 471039

出　　处：《洛阳工学院学报》2000年第4期61-64,共4页Journal of Luoyang Institute of Technology

基　　金："七五"国家科技攻关项目(75-52-03-05/13)

摘　　要：随着些油机的高速化和增压技术的发展 ,风冷些油机的热负荷问题日趋严重。本文研究了风冷柴油机气缸套内传热边界条件 ,在理论分析的基础上 ,提出了两种边界条件的计算公式 ,即基本关系式和实用关系式 ,利用该公式对缸套温度场进行了计算。最后对计算结果进行数据拟合 ,得出了有一定推广使用价值的边界条件计算公式。The problem of thermal load of air-cooled diesel engine was becoming seriously with speeding up and development of turbocharged engine technology. The conduct boundary conditions in the cylinder-liners were studied. On the basis of theoretical analysis two boundary condition formulae were provided.They were fundamental formula and practical formula. Using the least squares method, the empirical formulae under steady conduct boundary condition were obtained. The relative erors between calculating values and neasuring values were less than 5%. For the calculation of steady temperature field and thermal stress of air-cooled diesel engine cylinderliners, the obtained empirical formulae had very good suitability.

关 键 词：风冷柴油机 热负荷 汽缸套 传热系数 边界条件 

分 类 号：TK423.2[动力工程及工程热物理—动力机械及工程]