汽车发动机缸内直喷技术-毕业论文

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题目: 汽车发动机缸内直喷技术

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摘要······················································································错误!未定义书签。1前言ﻩ错误!未定义书签。

２缸内直喷发动机的特点ﻩ错误!未定义书签。

３缸内直喷发动机混合气形成的原理ﻩ错误!未定义书签。

3．1 分层燃烧ﻩ错误!未定义书签。

３.2 均质稀燃ﻩ错误!未定义书签。

3.3 均质燃烧ﻩ错误!未定义书签。

４缸内直喷发动机燃油喷射系统的结构ﻩ错误!未定义书签。

4.1 系统概述································································错误!未定义书签。

４．２进气系统 ························································错误!未定义书签。

4.３喷油系统ﻩ错误!未定义书签。

５大众１．8TSI发动机数据流分析ﻩ错误!未定义书签。

6 故障案例分析··································································错误!未定义书签。

6.1 途观发动机故障灯亮···············································错误!未定义书签。

６.2途观无法启动 ·····················································错误!未定义书签。总结···················································································错误!未定义书签。谢辞ﻩ错误!未定义书签。

参考文献ﻩ错误!未定义书签。

汽车发动机缸内直喷技术

摘要

大众轿车在国内首先采用了FSI发动机技术,采用该项技术的发动机具有节能,高效,低排放的优点,已成为车用汽油发动机一个十分重要的发展方向。本文首先介绍了FＳI技术概念及其优缺点。在与进气道喷射发动机比较的基础上,研究了FSＩ技术在充气系统、燃油系统和的工作原理,重点分析了FＳI 发动机分层充气、均质稀混合气、均质混合气三种模式以及燃油系统的结构和工作原理。借鉴于柴油机的燃油喷射技术，大众发动机采用了分层注油和均匀注油两种模式。FSI 技术有很大的发展潜力,将得到更大发展并将取代目前的进气道喷射技术。而本文还主要是对FSI发动机的工作原理进行了分析,并通过列举案例，对FS Ｉ发动机的常见故障进行分析、排查,提出解决方案。

关键词：FSI发动机;工作原理；分析与排查

Aｕtomoｂｉle Ｅｎgｉne Cylｉnder DirecｔIｎjecｔion Ｔ

echnoｌｏgｙ

Ａｂsｔract

Ａｕtｈｏr

Tｕｔor: Vｏlksｗagen car ｗaｓｕｓｅｄfiｒｓtly in Chｉna FSＩｅｎgin ｅtechｎology, ｔｈe teｃhnoloｇy oｆenｇｉneｈas thｅadvａntages of eｎergy saving, hｉｇh efficｉeｎcy, loｗemissｉons oｆthe advantaｇes of ｇａsoline engine, has bｅcomeａvery imｐortanｔｄevelopｍenｔdirection．Tｈis papｅr firsｔiｎｔｒoduｃed ｔhe FSI ｔｅｃhｎｏlogy co ｎcept and iｔs advantａｇes aｎd disadvａntａges. Iｎthｅiｎlｅｔａnｄｊe ｔｅngiｎe ｂａsed on the comparisｏｎ，hａs studied thｅFSIｔechnologｙinｐｎeumatｉｃsｙｓｔｅm, fueｌｓysteｍand ｔｈｅworkinｇｐrinciｐlｅs，fｏcusing ｏn aｎａlysis of FSI engｉｎe, hoｍogeneous stratified charge lean mixｔuｒe，hｏmｏｇｅneouｓmiｘｔure of threｅkinds ｏf ｍodes oｆtｈｅfｕel syｓtｅｍstｒｕcture and worki ｎg ｐriｎciple. In ｔheｄiesel fuel injecｔiｏn technology, V olkswageｎeng ｉne uses a ｈieraｒchical oｉｌiｎｇaｎｄuｎiｆorm filling two ｋinｄsｏf mｏde. FＳI techｎｏlogｙｈas great potｅntial fｏr deveｌopment, wｉlｌbｅbigger anｄwｉlｌreplace the cｕrreｎt port injeｃtiｏn tｅcｈｎolｏgｙ. Ａｎｄｔｈｉｓｐａper ａlso focusｅs on the ＦSI ｅngine wｏrking principle iｓanａlyzｅｄ，anｄｔhroｕｇh the ｌist of cａsｅs，the FＳI enｇine 's common fault ａnalyｓｉｓ,iｎvestｉgation, putｆｏrwaｒd sｏlutions．

Kｅy wordｓ: fｓi engｉne;ｃomｍon fauｌts;aｎaｌysiｓａｎd investigaｔion