内燃机润滑油在管路中的流动特性研究  

Study on the Flow Features of the Lubricating Oil in Pipe for Internal Combustion Engine

作　　者：宋金玲[1] 

机构地区：[1]泉州师范学院理工学院,福建泉州362000

出　　处：《机床与液压》2009年第8期91-93,共3页Machine Tool & Hydraulics

摘　　要：为提高内燃机中回转运动副,特别是曲轴等运动件的润滑效果,建立了一套由基本试验平台、标定和试验回路构成的用于研究黏性流体在管路中流动特性的实验系统。基于Bernoulli方程等,试验研究了3种润滑油的流动摩擦因数、管件出口流量系数、能量损失系数。研究表明:在雷诺数为10<Re<140范围内的流动特性参数实验系统是有效和适用的,为预测和深入研究对应管路中流体的流动特性提供了基础。In order to improve the effectiveness of lubrication for rotational matings, especially the crane shaft of internal combustion engine, a computer-controlled testing scheme consisting of the test base, the calibration subsystem and testing sub-system was set up for the viscous flow characteristics in pipeline components. Based on the Banial Bernoulli equation, friction coefficient, nozzle discharge coefficient, energy loss coefficient of three kinds of lubricants were studied. Experimental results show that within a range of Reynolds numbers of 10 〈 Re 〈 140, the testing scheme may reflect the flow characteristics of lubricants.

关 键 词：内燃机 黏质流动 紊流流动 管路 摩擦因数 

分 类 号：TK407.9[动力工程及工程热物理—动力机械及工程]