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本科生毕业设计（论文）

摘 要

柴油机在现代动力机械中起着重要的作用。为了解和研究柴油机的总体结构及其动力性能，本次毕业设计涉及到“4110型柴油机总体设计”。文中详细地阐述了柴油机的机体组件、活塞连杆机构、配气机构、燃油系统、润滑系统、冷却系统、电气系统等七大系统的设计重点。理解柴油机工作原理、过程，并参照4110型柴油机原型及主要参数进行了柴油机的总体布局设计。通过热力、动力计算及使用情况的分析，对4110型柴油机提出了合理的建议并进行改进。经过改进，柴油机的动力性能和经济性能得以提升，以适应需求。此次毕业设计的选题意义在于提倡使用动力性能更好和节能环保的柴油机。

关键词：4110；柴油机；总体设计；改进；性能

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本科生毕业设计（论文）

Abstract

Diesel engine plays an important role in modern power machinery. In order to make a further research of diesel engine, this paper is mainly concerned with the system design of 4110 type diesel engine. It is within the significant designing of airframe components、piston and crank mechanism、modified atmosphere mechanism、fuel system、lubricating system、cooling system and electrical system in detail. With the better understanding of diesel engine working principle and process or 4110 type diesel engine primary form and main parameters, the general layout design can be conducted as soon as possible. What is more, through the analysis of heat calculation、power calculation and uers′ feedback, reasonable suggestions for the 4110 type diesel engine are put forward and then improved. As a result, power performance and economic performance are enhanced to meet demand for use. The important significance presented in this paper lies in advocating to use better power performance、energy conservation and environmental protection in diesel engine.

Key Words：4110; diesel engine; system design; improvement; performance

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本科生毕业设计（论文）

目 录

摘 要........................................................................................................................ I Abstract .......................................................................................................................... I 引 言....................................................................................................................... 1 第一章 4110型柴油机的工作原理及应用范围........................................................ 4 第二章 4110型柴油机的总体设计.......................................................................... 10 第三章 4110型柴油机的结构设计.......................................................................... 13

3.1 机体组件设计............................................................................................... 13 3.2 曲柄连杆机构设计....................................................................................... 16 3.3 配气机构和进排气系统设计....................................................................... 25 3.4 燃油系统设计............................................................................................... 32 3.5 润滑系统设计............................................................................................... 35 3.6 冷却系统设计............................................................................................... 38 3.7电气起动系统设计........................................................................................ 40 第四章 4110型柴油机改进建议.............................................................................. 42 结 论..................................................................................................................... 43 参考文献..................................................................................................................... 44 附录A 热力计算 ....................................................................................................... 45 附录B 动力计算 ....................................................................................................... 55 致 谢..................................................................................................................... 85

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