发动机的拆装与检修.doc

摘要：发动机是汽车的心脏，是保证汽车高效、高速、安全运行的关键。其各机构、系统等技术状况的好坏直接关系到汽车的各项使用性能的优劣。汽车发动机的拆装与检修是汽车维修检测必须具有的基本技能之一，是一项严谨、规范的工艺，是恢复或保证发动机和汽车的使用性能、安全行驶、延长其使用寿命、提高其运行品质点的主要技术手段。本文主要重点介绍了发动机的构造与工作原理，汽车发动机拆装常用工具、量具的使用，汽车发动机总成拆装、机体组与曲柄连杆机构拆装、配气机构拆装、燃料供给系统拆装、润滑系统的拆装。以及阐述了发动机活塞连杆组、曲轴的检修调整等。通过论文的撰写可以巩固发动机构造与维修的基本知识，并加深理解；培养发现问题、解决问题的能力；为以后从事工作岗位打下基础。 关键词：发动机拆装；检测；维修；工艺 Santana 2000 engine disassembly and repair Abstract: engine is the heart of the car and is to ensure efficient cars，high-speed, run the key. Its institutions, systems and other technical have a direct relationship to the car＇s pros and cons of the of performance. Automotive engine disassembly and repair is the one of basic skills. It is rigorous specification process and restore engine performance, safe driving, longer engine life, improve the quality of its main technical means to run. This article focuses on the structure and working principle of the engine. Automotive engine disassembly tools, measuring the use and engine disassembly, crank the disassembly, valve disassembly, dismanting fuel system, lubrication system, disassembly etc. The paper described the group of the engine piston connecting rod and crankshaft overhaul adjustment. By writing to the papers can consolidate the basic knowledge of engine maintenance. Is can identify problems develop solving skills and lay the basis for the work. Keyword: Engine disassembly; Testing; Maintenance; process 目录 前言…………………………………………………………………………………1 1.发动机总体构造及工作原理……………………………………………………2 1.1桑塔纳2000型轿车发动机的性能特点……………………………………2 1.2发动机的构造与工作过程…………………………………………………2 2.发动机总成的拆装………………………………………………………………3 2.1常用工具、量具设备的使用………………………………………………3 2.2发动机的拆卸………………………………………………………………3 3.发动机机体组与曲柄连杆机构拆装与检修……………………………………4 3.1机体组与曲柄连杆机构的拆卸……………………………………………5 3.2汽缸体与汽缸盖的检验……………………………………………………7 3.3活塞连杆组的检测…………………………………………………………8 3.4曲轴的检测…………………………………………………………………10 3.5装配调整……………………………………………………………………11 4.配气机构拆装与调整……………………………………………………………13 4.1 配气机构的拆装与调整……………………………………………………13 5.发动机燃油系统检修……………………………………………………………16 5.