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含CAD高清图纸和说明书 柴油机 新型 燃油 分配 结构设计 CAD 图纸 说明书

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摘要柴油机的高效、节能使得汽车的柴油机化日趋明显。电控燃油喷射系统是目前柴油机的主要发展特征，也是满足更严格排放法规的一项有力手段。本设计以传统的机械式VE分配泵为基础，针对其控制不精确，燃油利用率低等缺点，对机械式分配泵进行改进，使其供油、正时、调速实现电控化，从而可以提高供油特性及其控制精度，而且使喷射时期控制特性多样化。另外，还对分配泵机械零件设计后利用CATIA进行建模，并应用ANSYS和CATIA做有限元分析，得到零件的仿真模型及有限元分析结果。最后得到了一种新型的电控分配泵结构。关键字：柴油机；VE分配泵；电控化；有限元分析；AbstractDiesels high efficiency makes the diesel engine of the car become more evident. Electronically controlled diesel fuel injection system is the main development features to meet more stringent emissions regulations are a powerful tool. The mechanical design of the traditional basis of VE distributor pumps for the control of inaccurate, low fuel utilization shortcomings of the mechanical pump to improve distribution, to oil, timing, speed to achieve electronic control, thus can increase the fuel supply characteristics and the control precision, but also the diversification of control characteristics during injection. In addition, design of mechanical parts of the distribution pump to model after the use of CATIA, and apply ANSYS and CATIA finite element analysis to do to get parts of the simulation model and finite element analysis results. Finally got a new Electronic Controlled structure.Key words：Diesel engine；VE