畢業(yè)設(shè)計(jì)（論文）標(biāo)題冷卻系統(tǒng)檢修與故障排除學(xué)生姓名陳家鵬系部汽車工程系專業(yè)汽車運(yùn)用技術(shù)班級(jí)汽運(yùn)0902指導(dǎo)教師陳琨株洲職業(yè)技術(shù)學(xué)院教務(wù)處制目錄摘要1關(guān)鍵詞1引言2第一章冷卻系統(tǒng)的作用、類型與組成1冷卻系統(tǒng)的作用22冷卻系統(tǒng)的組成23冷卻液的類型第二章冷卻系統(tǒng)的特點(diǎn)與檢修1冷卻系統(tǒng)的特點(diǎn)42冷卻系統(tǒng)的檢修4第三章冷卻系統(tǒng)常見故障診斷與排除1冷卻液消耗異常2發(fā)動(dòng)機(jī)過(guò)熱結(jié)論10謝辭11參考文獻(xiàn)12發(fā)動(dòng)機(jī)冷卻液系統(tǒng)維護(hù)與檢修摘要本文論述了冷卻系統(tǒng)的作用、組成、主要構(gòu)造、工作原理、日常維護(hù)、故障的檢測(cè)步驟和排除方法，同時(shí)論述了冷卻系統(tǒng)系統(tǒng)化、模塊化設(shè)計(jì)方法，以及冷卻系統(tǒng)的智能控制，并舉例做出簡(jiǎn)單介紹。關(guān)鍵詞冷卻系統(tǒng)冷卻系統(tǒng)維護(hù)溫度設(shè)定點(diǎn)冷卻系統(tǒng)智能控制1引言如果一臺(tái)發(fā)動(dòng)機(jī),冷卻系統(tǒng)的維修率一直居高不下,往往會(huì)引起發(fā)動(dòng)機(jī)其他構(gòu)件損壞,特別是隨著車輛行駛里程的增加,冷卻系統(tǒng)的工作效率逐漸下降,對(duì)發(fā)動(dòng)機(jī)的整體工作能力產(chǎn)生較大影響,冷卻系統(tǒng)的重要性在于維護(hù)發(fā)動(dòng)機(jī)常溫下工作,尤如人體的皮膚汗腺,如果有一天,人體的汗腺不能正常工作,那么身體內(nèi)的熱量將無(wú)法散去,輕則產(chǎn)生中暑,重則休克。THEENGINECOOLINGFLUIDSYSTEMMAINTENANCEANDOVERHAULPICKTOTHISPAPERDISCUSSESTHEPURPOSEOFTHECOOLINGSYSTEM,COMPOSITION,MAINSTRUCTURE,WORKINGPRINCIPLE,ROUTINEMAINTENANCE,FAULTDETECTIONSTEPSANDELIMINATIONMETHOD,ANDDISCUSSESTHECOOLINGSYSTEMSYSTEMATIC,MODULARDESIGNMETHOD,ANDTHECOOLINGSYSTEM,INTELLIGENTCONTROL,ANDANEXAMPLEISINTRODUCEDTOMAKESIMPLEKEYWORDSCOOLINGSYSTEMCOOLINGSYSTEMMAINTENANCETEMPERATURESETPOINTCOOLINGSYSTEMOFINTELLIGENTCONTROL1INTRODUCTIONIFONEENGINE,THECOOLINGSYSTEMMAINTENANCESTUBBORNLYHIGHRATE,OFTENCANCAUSETHEENGINEOTHERCOMPONENTDAMAGE,ESPECIALLYWITHTHEINCREASEOFVEHICLEMILEAGE,THEWORKINGEFFICIENCYOFTHECOOLINGSYSTEMGRADUALLYDECLINED,THEENGINEWHOLEWORKABILITYHAVEGREATINFLUENCE,THEIMPORTANCEOFTHECOOLINGSYSTEMISTOMAINTAINENGINEWORKUNDERNORMALTEMPERATURE,ESPECIALLYLIKETHEHUMANBODYSKINSWEATGLANDS,IFONEDAY,THEHUMANBODYSWEATGLANDSCANNOTWORKNORMALLY,SOTHEQUANTITYOFHEATINSIDEBODYWILLNOTBEDISPERSED,LIGHTPRODUCETHEHEATSTROKE,HEAVYTHENSHOCK一冷卻系統(tǒng)的作用、類型與組成1發(fā)動(dòng)機(jī)冷卻液的功用是對(duì)高溫條件工作的發(fā)動(dòng)機(jī)零件部件進(jìn)行冷卻，保證發(fā)動(dòng)機(jī)在適宜的范圍內(nèi)工作。發(fā)動(dòng)機(jī)冷卻液系統(tǒng)的冷卻強(qiáng)度必須適宜，它的調(diào)節(jié)是不是合適，對(duì)發(fā)動(dòng)機(jī)的工作影響很大。冷卻不足時(shí)會(huì)造成發(fā)動(dòng)機(jī)過(guò)熱，導(dǎo)致發(fā)動(dòng)機(jī)效率而影響發(fā)動(dòng)機(jī)功率的輸出。冷卻過(guò)度，會(huì)使發(fā)動(dòng)機(jī)工作溫度過(guò)低，啟動(dòng)困難，發(fā)動(dòng)機(jī)粗暴，散熱損失及摩擦損失增加，零件磨損加劇，CO及HC排放增加，導(dǎo)致發(fā)動(dòng)功率下降及燃油消耗率增加。2冷卻系統(tǒng)的類型根據(jù)冷卻介質(zhì)不同分為水冷式和風(fēng)冷式。水冷式是以水或防凍液為介質(zhì)，依靠冷卻水的循環(huán)流動(dòng)高溫機(jī)機(jī)的熱量送到散熱器，通過(guò)散熱器將熱量送到大氣中。結(jié)論汽車?yán)鋮s系統(tǒng)對(duì)汽車來(lái)說(shuō)是至關(guān)重要的,發(fā)動(dòng)機(jī)就如同人類的心臟,如果不好好保護(hù)就會(huì)受到威脅,現(xiàn)在隨著科技發(fā)展,冷卻系統(tǒng)不象以往那樣只是單純的水冷循環(huán),現(xiàn)在冷卻系統(tǒng)智能控制很受歡迎,所以在以后的汽車發(fā)展中,單純的冷卻系統(tǒng)不會(huì)站主導(dǎo)位置了,雖然智能控制要求很高,但是在高級(jí)轎車中很實(shí)用,它代表著未來(lái)冷卻系統(tǒng)的發(fā)現(xiàn)方向,智能冷卻系統(tǒng)控制將會(huì)作為標(biāo)準(zhǔn)裝置在汽車上,未來(lái)一段時(shí)間在冷卻系統(tǒng)中將占主導(dǎo)位置而智能控制將會(huì)提高發(fā)動(dòng)機(jī)的使用壽命,保障汽車的安全行駛,提高人身安全等原因,將來(lái)智能控制冷卻系統(tǒng)的發(fā)展將占主導(dǎo)位置謝辭時(shí)間過(guò)的很快，兩年的大學(xué)生活就這么結(jié)束了，有些匆忙、有些不舍，卻也很充實(shí)。感謝我的母校株洲職業(yè)技術(shù)學(xué)院讓我有一段值得回憶的快樂(lè)充實(shí)的大學(xué)生活。感謝我的輔導(dǎo)員陳琨老師。他給予我學(xué)習(xí)上的指導(dǎo)和生活上的無(wú)私幫助，表示衷心感謝祝老師工作順利，桃李滿天下謝我的論文導(dǎo)師，陳老師，陳老師在我寫論文過(guò)程中為我提出了許多寶貴建議，指正了我論文中的諸多不足，使我的論文得以順利完成，在此對(duì)導(dǎo)師的細(xì)心指導(dǎo)表示衷心感謝在兩年的大學(xué)生活中還有很多老師和同學(xué)給予我學(xué)習(xí)和生活上的幫助，在此我向他們表示我衷心地感謝最后，祝母校蒸蒸日上祝所有老師工作順利參考文獻(xiàn)1楊萬(wàn)福發(fā)動(dòng)機(jī)原理與汽車性能北京高等教育出版社，20042孔憲輝張廣坤。汽車故障診斷技術(shù)。北京高等教育出版社,20023張子波汽車發(fā)動(dòng)機(jī)構(gòu)造與維修。北京高等教育出版社，20054陳家瑞等汽車構(gòu)造北京人民交通出版社,20035黃虎等現(xiàn)代汽車維修上海上海交通大學(xué)出版社,2001GANEMPLOYMENTTRIBUNALCLAIMEMPLOYMENTTRIBUNALSSORTOUTDISAGREEMENTSBETWEENEMPLOYERSANDEMPLOYEESYOUMAYNEEDTOMAKEACLAIMTOANEMPLOYMENTTRIBUNALIFYOUDONTAGREEWITHTHEDISCIPLINARYACTIONYOUREMPLOYERHASTAKENAGAINSTYOUYOUREMPLOYERDISMISSESYOUANDYOUTHINKTHATYOUHAVEBEENDISMISSEDUNFAIRLYFORMOREINFORMATIONABOUTDISMISSALANDUNFAIRDISMISSAL,SEEDISMISSALYOUCANMAKEACLAIMTOANEMPLOYMENTTRIBUNAL,EVENIFYOUHAVENTAPPEALEDAGAINSTTHEDISCIPLINARYACTIONYOUREMPLOYERHASTAKENAGAINSTYOUHOWEVER,IFYOUWINYOURCASE,THETRIBUNALMAYREDUCEANYCOMPENSATIONAWARDEDTOYOUASARESULTOFYOURFAILURETOAPPEALREMEMBERTHATINMOSTCASESYOUMUSTMAKEANAPPLICATIONTOANEMPLOYMENTTRIBUNALWITHINTHREEMONTHSOFTHEDATEWHENTHEEVENTYOUARECOMPLAININGABOUTHAPPENEDIFYOURAPPLICATIONISRECEIVEDAFTERTHISTIMELIMIT,THETRIBUNALWILLNOTUSUALLYACCEPTITIFYOUAREWORRIEDABOUTHOWTHETIMELIMITSAPPLYTOYOU,TAKEADVICEFROMONEOFTHEORGANISATIONSLISTEDUNDERFURTHERHELPEMPLOYMENTTRIBUNALSARELESSFORMALTHANSOMEOTHERCOURTS,BUTITISSTILLALEGALPROCESSANDYOUWILLNEEDTOGIVEEVIDENCEUNDERANOATHORAFFIRMATIONMOSTPEOPLEFINDMAKINGACLAIMTOANEMPLOYMENTTRIBUNALCHALLENGINGIFYOUARETHINKINGABOUTMAKINGACLAIMTOANEMPLOYMENTTRIBUNAL,YOUSHOULDGETHELPSTRAIGHTAWAYFROMONEOFTHEORGANISATIONSLISTEDUNDERFURTHERHELPIFYOUAREBEINGREPRESENTEDBYASOLICITORATTHETRIBUNAL,THEYMAYASKYOUTOSIGNANAGREEMENTWHEREYOUPAYTHEIRFEEOUTOFYOURCOMPENSATIONIFYOUWINTHECASETHISISKNOWNASADAMAGESBASEDAGREEMENTINENGLANDANDWALES,YOURSOLICITORCANTCHARGEYOUMORETHAN35OFYOURCOMPENSATIONIFYOUWINTHECASEIFYOUARETHINKINGABOUTSIGNINGUPFORADAMAGESBASEDAGR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