活塞销偏置对润滑油消耗的影响

基于润滑油消耗机制,以某型12v柴油机为研究对象,建立活塞组件动力学仿真模型,分析活塞销偏置方式和活塞销偏置量对于润滑油消耗的影响.结果表明:活塞销偏置方式总体趋势是使润滑油的消耗减少,窜油和甩油得到明显改善,其中活塞销偏副推力侧(Anti-Thrust Side,ATS)对润滑油的消耗减少的效果最好;活塞销偏置量对润...

Effect of Piston Pin Offset on Lubricating Oil Consumption

Based on the mechanism of lubricating oil consumption,taking a 12v diesel engine as the research object,the dynamic simulation model of piston assembly was established,and the influence of piston pin offset mode and amount on lubricating oil consumption was analyzed.The results show that the offset mode of piston pin generally leads to the decrease of lubricating oil consumption,improves the oil channeling and oil throwing obviously,and the piston pin offset to anti-thrust side(ATS)has the best effect on reducing the consumption of lubricating oil.The offset of piston pin has a great influence on the consumption of lubricating oil.When the offset increases,the oil channeling first decreases and then increases,and the oil throwing decreases continuously.When the piston pin deviates 3 mm to ATS,the best comprehensive effect on reducing lubricating oil consumption is obtained.With the increase of diesel engine speed,the consumption of lubricating oil shows a growing trend,resulting in the reduction of engine efficiency.