论文部分内容阅读
对排气道采用隔热措施后，使通过排气道散向气缸盖的热量减少，从而降低气缸盖的热负荷和热应力，达到增加标定功率的目的．描述了钢壳陶瓷涂层排气道气缸盖的设计与铸造工艺、气缸盖的热冲击试验和温度测量、单缸机性能考核试验．在国产ＢＦ８Ｌ４１３Ｆ风冷增压柴油机（Ｄ＝１２５ｍｍ，Ｓ＝１３０ｍｍ）上进行隔热气缸盖与原机气缸盖的性能对比试验．试验结果表明，采用陶瓷隔热后，整机功率从２３５ｋＷ增至２５４ｋＷ，增加８．１％，缸盖温度却比原机低１０℃．
Adopting insulation measures to the exhaust duct reduces the heat dissipated to the cylinder head through the exhaust duct to reduce the thermal load and thermal stress on the cylinder head so as to increase the rated power. Describes the design and casting process of cylinder head ceramic coating exhaust cylinder head, thermal shock test and temperature measurement of cylinder head, performance test of single cylinder engine. In the domestic BF8L413F air-cooled turbocharged diesel engine (D = 125mm, S = 130mm) on the insulated cylinder head with the original machine cylinder head performance comparison test. The test results show that, with ceramic insulation, the whole power increased from 235kW to 254kW, an increase of 8.1%, the cylinder head temperature is lower than the original 10 ℃.