摘要编号淮安信息职业技术学院毕业论文题目柴油机高压共轨系统的故障诊断与维修学生姓名学号院系汽车工程系专业汽车检测与维修技术班级指导教师顾问教师二〇一五年十一月摘要PAGEII摘要柴油发动机高压共轨电控燃油喷射技术从结构上彻底改变了柴油发动机燃料供给方式，实现了高压喷射、精确控制、喷油压力与喷油过程分开，使柴油发动机经济性、排放性、动力性有了大幅提高，并在柴油发动机系统中广泛使用。机械结构、电子控制、液压系统多种先进技术的综合运用，使系统的复杂程度、精密程度大大增加。对使用维护提出了更高的要求。了解、掌握高压共轨电控燃油喷射系统，对维修人员有着重要意义。本文简单介绍了高压共轨电控燃油喷射系统，并根据自己的维修经验，结合案例分析总结了高压共轨电控燃油喷射系统故障诊断的基本思路。关键词：高压共轨；电控喷射；故障诊断AbstractAbstractAbstractAbstractDieselenginehighpressurecommonrailelectronicfuelinjectiontechnologyhascompletelychangedthedieselenginefuelsupplymode,realizedthehighpressureinjection,accuratecontrol,injectionpressureandinjectionprocessseparately,sothatthefueleconomy,emissionsandpowerofthedieselenginehasbeengreatlyimproved,andwidelyusedinthedieselenginesystem.Mechanicalstructure,electroniccontrol,hydraulicsystemofavarietyofadvancedtechnology,comprehensiveuse,sothatthecomplexityofthesystem,thedegreeofprecisionisgreatlyincreased.Higherrequirementsfortheuseofmaintenance.Tounderstandandmasterthehighpressurecommonrailfuelinjectionsystem,whichhasimportantsignificanceforthemaintenancepersonnel.Thispaperbrieflyintroducesthehighpressurecommonrailfuelinjectionsystem,andaccordingtotheirownmaintenanceexperience,combinedwithcaseanalysis,summarizesthebasicideasoffaultdiagnosisofhighpressurecommonrailfuelinjectionsystem.Keywords:Highpressure;Faultdiagnosis;Electroniccontrolinjection目录目录PAGEIII目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc434666747"摘要PAGEREF_Toc434666747\hIHYPERLINK\l"_Toc434666748"AbstractPAGEREF_Toc434666748\hIIHYPERLINK\l"_Toc434666750"第一章概述PAGEREF_Toc434666750\h1HYPERLINK\l"_Toc434666751"1.1高压共轨的发展PAGEREF_Toc434666751\h1HYPERLINK\l"_Toc434666752"1.2高压共轨的优点PAGEREF_Toc434666752\h3HYPERLINK\l"_Toc434666753"第二章柴油机高压共轨系统组成及工作原理PAGEREF_Toc434666753\h4HYPERLINK\l"_Toc434666754"2.1组成PAGEREF_Toc434666754\h4HYPERLINK\l"_Toc434666755"2.1.1低压供油部分PAGEREF_Toc434666755\h4HYPERLINK\l"_Toc434666756"2.1.2高压供油部分PAGEREF_Toc434666756\h