| 排气道隔热方式对气缸盖整体温度场影响的研究 |
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| 引用本文： | 张春平,白敏丽,朱国朝,陈家骅.排气道隔热方式对气缸盖整体温度场影响的研究[J].小型内燃机与摩托车,2001,30(1):1-4. |
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| 作者姓名： | 张春平 白敏丽 朱国朝 陈家骅 |
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| 作者单位： | 大连理工大学 |
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| 基金项目： | 国家科委“九五”重点攻关项目 |
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| 摘 要： | 本文对BF8L413F风冷柴油机气缸盖排气道采用的两种隔热方式——喷涂1.5mm氧化锆陶瓷涂层和1mm空气层隔热的隔热效果进行了研究。用ANSYS程序对原机和两种隔热方式的气缸盖温度场和热流场进行了数值模拟。计算模型和实际气缸盖结构基本一致，各部分形状、特别是排气道的结构形式没有作任何简化。数值模拟与实验结果吻和很好。研究表明排气道隔热可有效降低缸盖整体的热负荷，而空气层的隔热效果比陶瓷涂层的隔热效果更为明显。
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| 关 键 词： | 柴油机／空气陶瓷排气道 |
| 修稿时间： | 2000年11月8日 |
An Investigation into
Influences of Exhaust port Heat Insulating Methods on Total Temperature Field of Cylinder
Head |
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| Zhang ChunpingBai,Bai MinliZhu,Zhu Guochao,Chen Jiahua.An Investigation into
Influences of Exhaust port Heat Insulating Methods on Total Temperature Field of Cylinder
Head[J].Small Internal Combustion Engine and Motorcycle,2001,30(1):1-4. |
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| Authors: | Zhang ChunpingBai Bai MinliZhu Zhu Guochao Chen Jiahua |
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| Affiliation: | Dalian 116024 |
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| Abstract: | In this paper，the heat insulating effect of BF8L413F Diesels heat insulated exhaust port adopting two heat insulating methods of 1.5mm ceramic coating and 1mm air-gap is studied．Temperature field and heat flux field of cylinder head of the original engine and with two heat insulating modes are calculated by ANSYS program．The shapes of each part，especially the exhaust port，are not simplified any more．However，the results are coincident with the experiment data．The research states that the heat insulated exhaust port can reduce the thermal load efficiently，and air-gaps effect is much better than ceramic coating． |
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| Keywords: | Diesel engine/air Ceramic Exhaust port |
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