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《专业英语准论文The engine Ignition-system )》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、成绩评阅人TheengineIgnition-systemServiceandMaintenance学院：学期：2010-2011第二学期课程：专业英语专业：车辆工程班级：学号：姓名：5TheengineIgnition-systemServiceandMaintenanceThegasolineengineinthecompressiononthecheckpoint,closetothemixtureisthesparkplugignites,thusburningtodowork,forthis,theforeigng
2、asolineengineinthecombustionchamberareequippedwiththesparkplug.Thesparkplughasacentralelectrodeandasideelectrode,twooftheinsulationbetweenelectrodesis.Whentwoelectrodesinthesparkplugsanddcvoltageisthevoltagebetweenandincreasetoacertainvalue,thesparkplugthegapbetwee
3、ntwoelectrodeswillbebreakdownandproduceelectricspark,cansparkpluginthegenerationbetweentwoelectrodestominimumvoltageelectricsparkofcalledbreakdownvoltage;Cansparkplugthegenerationbetweentwoelectrodesinalltheequipmentofelectricsparkcalledengineignitionsystem.Composi
4、tion:Theignitionsystemmainlybythepowersupply,theignitionswitch,ignitioncoil,cut-outrelay,withelectricalappliances,capacitor,sparkplug,highvoltagewires,additionalresistanceetcTraditionalignitionsystembybatteries,generators,ignitioncoil,cut-outrelay,sparkplugetc.Comm
5、ontypeandtraditionalignitionsystemissimilartouseelectroniccomponentstoreplacebreakelectricalappliances.Electronicignitiontypeareallfullelectronicignitionsystem,completelycancelledamechanicaldevice,electronicignitioncontrolsystembytime,includingbatteries,generators,
6、ignitioncoil,sparkplugsandelectroniccontrolsystem,etc.Function:Theautomotiveignitionsystemhastwobasicfunctions:itmustcontrolthesparkandtimingofthesparkplugfiringtomatchvaryingenginerequirements,anditmustincreasebatteryvoltagetoapointwhereitwillovercometheresistance
7、offeredbythesparkpluggapandfiretheplug.Principleofwork:Thepowersupplyisthebattery,thevoltagefor12Vor24V,ignitioncoilandbrokenbyelectricalproduceshighpressurecommon10000Vabove.Theprimaryloopandtimesextremelypointscircuit.Theignitioncoilisactuallyatransformer,mainlyb
8、ytheprimarywinding,awindingandcoreoftime.BrokenappliancesareaCAMofthemanipulationoftheswitch.BrokenappliancesCAMdrivenbytheenginewithgas,andwitht
