The Effect of Piston Structure Parameters on the Lub-oil Consumption
Based on the measurement of temperature filed of piston and cylinder sleeve, the dynamic model of 2D25 diesel piston assembly was established. The effect of piston structural multi-parameters and single parameters on lub-oil consumption was analyzed respectively by orthogonal experimental design method and conventional method, and the single parameters which including the radial clearance between piston skirt, piston head and cylinder inner wall, and the piston pin offset. The results indicate that the radial clearance between piston skirt and cylinder inner wall was the greatest impact on the lub-oil consumption, then the piston head radial clearance and the piston pin offset. And the convex position of piston skirt profile, stiffness and ovality of piston skirt had little impact to oil consumption. The lub-oil consumption had little change with the radial clearance between piston skirt and inner wall from 0.06mm 0.09mm, but the lub-oil consumption increased rapidly when the radial clearance between piston skirt and inner wall was at the range of 0.09mm 0.15mm. The lub-oil consumption had a little increment with the piston head radial clearance. The lub-oil consumption was the lowest when the piston pin offset to main bearing surface was 0.5mm, and the lub-oil consumption was increasing with piston pin offset to main bearing surface was increasing, but the range was not obvious.
Jilin Lei Xiaoli Yu Jun Wen Lizhong Shen Zhentao Liu
Zhejiang University,China Chendu Galaxy Power CO.,LTD.,China Kunming University of Science and Technology,China
国际会议
上海
英文
1-10
2013-05-13（万方平台首次上网日期，不代表论文的发表时间）