缸套厚度对柴油机缸套变形的影响研究  

A Study on the Effect of Different Liner Thickness on Diesel Engine Liner Deformation

作　　者：徐远志[1] 温志高 毕玉华[1] 雷基林[1] 申立中[1] 

机构地区：[1]昆明理工大学 [2]豫西集团成都银河动力有限公司

出　　处：《内燃机与配件》2016年第1期1-6,共6页Internal Combustion Engine & Parts

摘　　要：气缸套-活塞摩擦副是柴油机中热负荷高、机械冲击大、工作环境最为恶劣的摩擦副,其运行可靠性是决定内燃机工作性能的要素之一。以增压中冷四缸柴油机湿式缸套为研究对象,研究了不同缸套厚度对缸套机械变形与热变形的影响。结果表明:缸套的厚度直接影响预紧力及缸内温度对缸套变形的作用大小。在缸盖螺栓布局不变的情况下,缸套厚度增加,机械变形与热变形变小,预紧力及热负荷对缸套变形的影响变小。The friction of liner and piston, which work under the worst condition such as high thermal and mechanical load, is one of engine performance factor that determine the working reliability. In this paper, the effect of different liner thickness on liner mechanical and thermal deformation was studied based on a four wet liner diesel engine. The result shows that the liner thickness directly affects the liner thermal deformation. Under the condition of the cylinder head bolt layout unchanged, with the liner thickness increase, the liner mechanical and thermal deformation decrease. The bolt preload and thermal load has litter effect on the deformation.

关 键 词：柴油机 气缸套 预紧力 热变形 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]