中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 天然气发动机活塞稳态温度存储式测量系统 农业机械学报 2012,43 (1) 33-36
Position: Home > Articles > Steady-state Temperature Measurement on the CNG Engine Piston Transactions of the Chinese Society for Agricultural Machinery 2012,43 (1) 33-36

天然气发动机活塞稳态温度存储式测量系统

作  者：
张志勇;黄荣华;王兆文;程伟
单  位：
华中科技大学能源与动力工程学院;东风汽车商用车研发中心
关键词：
发动机;活塞;稳态温度;存储式测量
摘  要：
设计了一套存储式活塞稳态温度测量装置,系统测试精度为±1℃;对EQD180N-20型天然气发动机外特性1 000、1 500、2 100 r/min 3个转速点进行了活塞稳定工况温度测量,同时进行了发动机转速从1 000 r/min缓慢上升到2 100 r/min的活塞温升试验。表明系统工作稳定可靠,提高了活塞温度测量效率,分析了EQD180N-20型发动机活塞温度热负荷,活塞轴向的平均温度梯度达23℃/min。
译  名：
Steady-state Temperature Measurement on the CNG Engine Piston
作  者：
Zhang Zhiyong1 Huang Ronghua1 Wang Zhaowen1 Cheng Wei2(1.School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China 2.Engine Department of Dongfeng Commercial Vehicle Technical Center,Wuhan 430056,China)
关键词：
Engine,Piston,Steady-state temperature,Memory measurement
摘  要：
A set of steady temperature measurement device was developed.A high accuracy of ±1℃ could be obtained by the system as long as the error was calibrated.The piston temperature was measured at the engine speeds of 1 000 r/min,1 500 r/min and 2 100 r/min on the external characteristics of the engine of EQD180N-20,respectively.The piston temperature variation test was performed from 1 000 r/min to 2 100 r/min simultaneously.The results show that the proposed system is stable and reliable.On the external characteristics,the temperature of each feature point increased firstly and then declined slightly as the engine speed increased,and a maximum value was observed at 1 500 r/min;on the stable working condition,the highest temperature appeared in the piston top surface with a value of 264℃,The first piston ring slot temperature is about 215℃.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46