车用柴油机气缸盖热负荷研究  

Study on Thermal Load of Vehicle Diesel Engine Cylinder-head

作　　者：赵金刚[1] 潘剑锋[1] 李德桃[1] 王士钫 薛宏 张梦云[1] 

机构地区：[1]江苏大学能源与动力工程学院,江苏镇江212013 [2]上海柴油机股份有限公司,上海200438 [3]美国加州工业大学,加州洛杉矶ca91768

出　　处：《拖拉机与农用运输车》2009年第3期29-31,共3页Tractor & Farm Transporter

基　　金：江苏省自然科学基金资助项目(BK2003048);江苏省"‘青蓝工程’资助"

摘　　要：通过对国产化气缸盖关键部位温度的测量,分析和评定了气缸盖的热负荷,并与原产品气缸盖进行比较,同时还与国产化中的两套备选方案进行了试验比较分析。试验结果表明:国产化气缸盖的热负荷不高,由温度差引起的热应力、热变形对气缸盖影响也不大;与原产品气缸盖相比较,国产化设计基本达到了预期开发目标。从气缸盖热负荷分析及试验比较结果表明该机型可以适当强化。By measuring the temperature at the key places of the second generation cylinder-head ,the paper analyzed and evaluated its thermal load, and understood its thermal stress and thermal distortion, then compared with the temperature between the manufactured product and second generation cylinder-head. In order to make better results, it tested and compared with other alternative at the same time, and predicted the possibility of strengthening this diesel engine. The test results indicate ： the second generation cylinder-head＇ s thermal load is not high ; the effect of the thermal stress and thermal distortion caused by the temperature difference on the cylinder-head is smalL;hence the second generation reaches expected goal basically, the diesel engine may be appropriately strengthened.

关 键 词：柴油机 气缸盖 热负荷 

分 类 号：U464.172[机械工程—车辆工程]