【作者】

Jilin Lei，Xiaoli Yu，Jun Wen

【摘要】

论文已在中国上海举行的2013年CIMAC大会上发表。论文的版权归CIMAC所有。 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 param eters 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.

【会议名称】

第27届CIMAC会议

【会议地点】

上海

【下载次数】

1

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