章健;马学军;熊培友;郭伟;

山东滨州渤海活塞股份有限公司

    摘要：活塞结构设计中常使用环岸积气槽来优化发动机的机油耗和漏气量。针对积气槽尺寸对于性能的影响程度,从活塞环的受力平衡角度出发研究了积气槽容积对于第一、二环密封的影响,并设计出6种方案进行动力学分析,结果表明,改变积气槽容积会对发动机漏气量和机油耗产生影响,并分别呈现出一定的规律。为验证模拟分析的准确性,对其中的两种方案进行了台架试验,试验结果与模拟结果吻合良好。

    关键词： 积气槽;;机油耗;;漏气量;;模拟分析;;台架试验

    Abstract: Relief cut- back is often used as a piston structure to optimize the oil consumption and blow- by of engine. In order to find out the influence degree of dimension of cut- back on performance,this paper researches the influence of cut- back volume on the seal of the first and the second rings from the point of view of force balance of piston rings,then proposes 6 schemes to have some dynamics analysis. The results show that volume changing of cut- back has regular effects on blow- by and oil consumption. In order to verify the accuracy of the simulation analysis,2 schemes are chosen to have bench tests. The results of tests agree with simulation results.

    Keywords: Relief Cut-back;;Oil Consumption;;Blow-by;;Simulation Analysis;;Bench Test

参考文献：

[1]崔仁卫,罗南春,胡波.车用柴油机活塞漏气量试验及其限值的分析[J].车用发动机,1999(3):7~11.

[2]张文利,王世利,王云霞,等.基于降低机油耗的活塞仿真优化与实验验证[J].农业装备与车辆工程,2011(1):34~36.

[3]马呈新,赵旭东.优化活塞结构降低柴油机机油耗[J].内燃机与动力装置,2007(5):37~39.

[4]Zhang Junhong,Zhang Guichang,He Zhenpeng,etc.Analysis of Oil Consumption in Cylinder of Diesel Engine for Optimization of Piston Rings[J].CHINESE JOURNAL OF MECHANICAL ENGINEERING,2013(1):207~216.

[5]Fatih Kagnici,Ozgen Akalin.The Effect of Cylinder Bore Distortion on Lube Oil Consumption and Blow-by[J].Proceedings of the ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis,2012:1~10.

[6]吉田秀树.活塞第二环岸容积和形状对润滑油消耗量的影响[J].国外内燃机,1996(1):24~30.

[7]祁中高译.活塞环闭口间隙的设计对机油耗及漏气量的影响[J].内燃机与配件,2011(12):19~23.

[8]蒋景峰.浅析如何减少活塞环对发动机漏气量的影响[J].内燃机与配件,2010(12):12~14.

[9]Krisada Wannatong,Somchai Chanchaona,Surachai Sanitjai.Simulation algorithm for piston ring dynamics[J].Simulation Modelling Practice and Theory,2008(16):127~146.