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首页> 外文期刊>Tribology & Lubricaion Technology >Modeling and Simulation of Hydrodynamic Lubrication of Rotary Diesel Fuel Injection Pump
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Modeling and Simulation of Hydrodynamic Lubrication of Rotary Diesel Fuel Injection Pump

机译：旋转柴油​​机喷油泵流体动力润滑的建模与仿真

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摘要

Rotary diesel fuel injection pump is a vital subassembly and its failure ultimately leads to failure of diesel engine. The radial clearance between the surfaces is generally in the range of 2 to 3 microns for effective fuel injection. Of late it has revealed that there is an unprecedented high failure rate of rotary type diesel fuel injection pumps. This study, therefore, is aimed at developing mathematical model and simulation based on fundamental principles for hydrodynamic lubrication regime between the plunger and sleeve of hydraulic head in a rotary diesel fuel injection pump. Finite Difference Method is used for computational purpose. The effects of shear stresses, dimensionless film thickness, dimensionless pressure and load are studied and analyzed by varying radial clearances between the plunger and the hydraulic head of rotary diesel fuel injection pump. Comparative analysis is carried out based on hydrodynamic lubrication in a rotary mechanism.
机译：旋转式柴油喷射泵是至关重要的组件，其故障最终会导致柴油机故障。为了有效地喷射燃料，表面之间的径向间隙通常在2至3微米的范围内。最近发现，旋转式柴油喷射泵的故障率空前高。因此，本研究旨在基于基本原理，为旋转式柴油喷射泵的液压头的柱塞和套筒之间的流体动力润滑方式开发数学模型和仿真。有限差分法用于计算目的。通过改变旋转式柴油燃油喷射泵的柱塞和液压头之间的径向间隙，研究和分析了剪切应力，无量纲膜厚度，无量纲压力和载荷的影响。基于旋转机构中的流体动力润滑进行比较分析。

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