郎晓姣, 郑清平, 黎苏. A Venture Tube Structure Optimization Used in Egr System of Turbocharger Diesel[J]. 2010, (3): 46-49.DOI:
增压柴油机EGR系统文丘里管的结构优化
摘要
利用CFD软件建立了某增压柴油机EGR系统中所需的文丘里管模型
通过模拟不同尺寸的文丘里管分析了各种情况下的压降及均匀性。研究结果表明:采用总长为300mm
直径为22mm
18°压缩角和12°扩压角的文丘里管能够满足该增压柴油机压降及均匀性的要求。
Abstract
A venture tube model which needed in Exhaust Gas Recirculation(EGR) system of turbocharger diesel is built by Computational Fluid Dynamics(CFD) software.Pressure drop and uniformity in any cases are analyzed by simulating different size venture tubes.The results show that the venture tube
which has 300mm overall length
22mm diameter
18° compression angle
and 12° diffusion angle
can meet the requirements of pressure drop and uniformity for turbocharger diesel.