Unit2ComputerHardware《計算機(jī)專業(yè)英語》郭敏徐瑩楊陽Unit2ComputerHardwareSection1SituationalDialogShoppingforaComputerSection2PassagesPassageA.AGuideonTheMainComponentsInaPCPassageB.IntroducingCommonPeripheralsSection3SkillinFocusReadingSkills

Part2—CharacteristicsofComputerEnglishVocabularyCharacteristicsofComputerEnglishTextSection4ExtendedReadingPartIIIofCommencementSpeechatStanfordGivenbySteveJobsIntelSettlesAntitrustAMDCasefor$1.2bnABriefRundownofWhatYouNeedInALaptopTips:UpgradeYourPCwithaNewGraphicsCard

Unit2ComputerHardwareSection1SituationalDialogueShoppingforaComputer1、你購買過計算機(jī)嗎？描述一下你的購買過程以及你的電腦配置?；蛘呷绻愦蛩阗徺I，你會買一臺什么配置的電腦。2、你覺得購買計算機(jī)的時候應(yīng)當(dāng)考慮哪些因素？Unit2Section1

ChenHongplanstobuyacomputerandsheisaskingMr.Liforsuggestions.

ChenHong:Excuseme,Mr.Li.I’mplanningtobuyacomputer.Iwonderifyoucouldgivemesomeadvice.Mr.Li:Sure.Itwouldbebetterifyou’vegotabudget.Whichdoyouprefer,adesktoporlaptop?Andwhatdoyouwantitfor?

ChenHong:I’dliketospendabout4,000yuanonadesktop,withwhichIcouldlearnaboutimageprocessingsoftwareandsearchsomeinformationonline.Besides,I’dreallylovetowatchsomeblockbustersinmysparetime.Iknowabrandedcomputerisabetterchoiceforalaymanlikemesinceanassembledonedoesnotensuregoodservices.IwenttothePCMalltheotherdayandbroughtbacktheseleaflets.Wouldyoupleaseselectoneforme?Unit2Section1Mr.Li:OK.Letmetakealook.…Mr.Li:Irecommendthisone.Yousee,itenjoysagoodCPUandanindependentGraphicscard,suitableforimageprocessing.Its22indisplaywith1080pfullHDcapabilityisidealforvideowatching.Mostimportantly,thepriceiscompetitive.ChenHong:Theretaileralsooffersspeakers,aUSBflashdrive,acameraandatabletfreeofcharge,andtheRAMcanbeupgradedconsiderablyfor100yuanmore.Mr.Li:That’simpressive.SurftheInternetandyoucanlearnalotabouthardwarefromthisshoppingexperience.ChenHong:That’squitetrue!Thankyouverymuchforyouradvice!

Unit2ComputerHardwareSection2PassageA：AGuideontheMainComponentsinaPC1、計算機(jī)是由哪些組件構(gòu)成的2、選擇一個你最熟悉的硬件向同學(xué)們介紹Unit2Section2PassageAcomponentbinaryinteractmotherboardRAMROMBIOSBUSO/IHarddisksectorFATCD-ROMDVD-ROMburningexpansioncardmodemanaloguetranslatorgraphicscardACDCUnit2Section2PassageAHistorically,acomputerisanydevicethatcanstoreandprocessdata.Todayitusuallyreferstoanelectronicdevicewithcircuitsthatallowfordatatobemanipulatedinbinaryform.Sothemaincomponentsaresoftware(programstoprocessdata)andhardware(devicesusedforthestoringandprocessingofthatdata).Andlastly,anarrayofcomponentsforhumanstointeractwiththeelectronicdata“machine.”Unit2Section2PassageAModerncomputersusuallycontainthefollowingcomponents:MotherboardsCPUMemoryO/IPortsHardDiskCD-ROM/DVD-ROMDriveExpansionCardsPowerSupplyUnit2Section2PassageAMotherboardsThemotherboardisheartofthecomputer,withallofitsconnectionsleadingoutfromitselfandintoeverydeviceinthemachine.WhenyouopenaPCyou’llseetheMotherboardwillmorethanlikelycoverthewholeofonesideofthePC.Itisaveryimportantpartofthesystemsinceeverythinghastobeconnectedtoit,everythingthereforehastobecompatiblewithit.Thespeedoftheconnectionsthatrunfromeachcomponenttothemotherboardcanalsohaveapositiveornegativeeffectonthesystem.

Unit2Section2PassageACPUTheCPU(CentralProcessingUnit)isoftenreferredtoasthe“brain”ofthecomputer.Althoughitisarguedamongstmanypeopleweatherornotthisisthemostimportantpartofthecomputer,itisstilloneofthemostsignificantpiecesofhardwareinsidethecase.However,itisnottosaythatbymerelybuyinganewCPUyouwillbespeedingupthecomputer,whichisacommonmistakemadebyuserswhodon’tseethecomputerasa“whole”butasitsdifferentcomponents.TheCPUworksindirectharmonywithallotherpartsofthesystem.TheimpactofaCPUwillbegreatlyreducedifthemotherboardhasaslowBUSspeed.

Unit2Section2PassageAMemoryTheMemoryofthecomputercomesundertwosections,theRAM(RandomAccessMemory)andtheROM(ReadOnlyMemory).Thedifferencebetweenthetwoisthat,RAMisvolatile(whichmeansthatwhentheworkstationpowersdownorswitchesoffthenthecontentsofthememoryiscleared)andROMisnot.TheROMisalsoknownastheBIOS(BasicInputOutputSystem).MemoryasinRAMisveryimportanttothecomputer,especiallyifthisparticularcomputerisgoingtobeworkingwithalotoflargefilesandprograms.HoweverontheotherhandROMisnotveryimportant;theBIOSversionwrittenontoitisthemostrecent(orafairlyrecent)version.

Unit2Section2PassageAO/IPortsO/IPorts(Output/InputPorts)coversallofthesockets,commonlyatthebackofthePC.TheseportsareintendedforyoutopluginexternalhardwaresuchasaprinteroramouseintoyourPC.WithoutthemtheuserwouldbeunabletointerfacewiththePC.Theywork,forthemostpart,bybeingconnectedintothemotherboard.Mostofthesearenowadaysautomaticallydetectedassoonasweplugthemintotheslotthereforemakingiteasytojustpluginadeviceandbeabletouseitrightaway.

Unit2Section2PassageAHardDiskThisisthemainstoragedeviceonallPCscapableofholdinghugeprogramsandfilesizes.InsidetheHardDiskthereisaread/writeheadthatdoesallofthereadingandwritingfromthedisk.Thisread/writeheadmagnetizessomethingknownassectorsontheHardDisk;ifasectorfillsupthentheread/writeheadwillmoveontoanothersector,nomatterwhereonthediskandcontinuewriting.TheHardDiskhasaspecialareaonitknownastheFAT(FileAllocationTable),whichtellstheread/writeheadwhereallthepiecesofinformationitneedsare.

Unit2Section2PassageAHardDisk

Howeverifaread/writeheadhastokeepmovingaroundthedisktogettheinformationitneedsinsteadofbeingintheoneplace,itwillslowthingsdown.Tocounterthis,programslikeDiskDefragmentersareusedtoputallofthedatatogetherandthereforeimproveaccesstimesontheHardDisk.

Unit2Section2PassageACD-ROM/DVD-ROMDriveTheCD-ROMandtheDVD-ROMdrivesareverypopularmethodsofdatastorage.ItisessentialforalmostallcomputersnowadaystohaveaccesstoaCD-ROMdriveintheveryleast,especiallyatabusinesslevel.Theyworkinaverysimilarwaytotheharddiskdriveinthesensethattheyarereadandwrittento,howeverthisjobisdonewithalaserandthetermforwritingtoaCDorDVDisoftenreferredtoas“burning”.DVD-ROMsworkinexactlythesamewayasCD-ROMS,theonlydifferencebeingthatDVD-ROMscontainalotmoredata.Unit2Section2PassageAExpansionCardsExpansioncardsarethecardsinsideofthePCthatareusefulforperformingspecificfeatures.Forexample,theinternalmodemtakescareofspeakingtoananaloguelineforthecomputerandactsasatranslatorforthecomputerandthephoneline,andagraphicscardallowsyoutodealwithhighqualitymedia.Expansioncardsareparamountforfine-tuningthesystem.Theyarethepartsofthemachinethatmakeittrulycustomizable.Unit2Section2PassageAPowerSupplyThepowersupplysuppliespowertothewholesystem.Isthepartofthecomputerthatishookeddirectlyintothemains.Duetothecapacitorsandotherelectronicsinsideofthem,theyarenormallyverydangerousevenwhendisconnectedfromthemains,andarealmostcompletelynonuser-serviceable.ThepowersupplytakestheACpowerfromthewallsocketandconvertsitintoDCpowerbecauseACcurrentisliabletodamagethedelicateinnardsofthePC.Unit2Section2PassageAPowerSupplyApowersupplyisanotheressentialpart.Theonlythingyouwillbelikelytogetdifferentonapowersupplyistheamountofwattageoutandtheamountofconnectorsthatitwillallowout.Unit2Section2PassageAExercisesI1.______isheartofthecomputer,withallofitsconnectionsleadingoutfromitselfandintoeverydeviceinthemachine.A.ThemotherboardB.TheCPUC.TheharddiskD.ThepowersupplyAUnit2Section2PassageAExercisesI2.Theimpactofa______willbegreatlyreducedifthemotherboardhasaslowBUSspeed.A.O/IPortB.CPUC.memoryD.harddisk

BUnit2Section2PassageAExercisesI

3.______isthemainstoragedeviceonallPCscapableofholdinghugeprogramsandfilesizes.A.TheROMB.TheRAMC.TheDVD-ROMdriveD.TheHardDisk

DUnit2Section2PassageAExercisesI4.Thetermfor______aCDorDVDisoftenreferredtoas“burning”A.readingB.checkingC.writingtoD.moving

CUnit2Section2PassageAExercisesII1.CPU2.PowerSupply3.I/OPorts4.CD-ROM5.FAT6.Memory7.HardDisk8.BIOS9.Motherboard10.ExpansionCard()a.擴(kuò)展卡()b.內(nèi)存()c.中央處理器()d.文件配置表()e.硬盤()f.基本輸入輸出系統(tǒng)()g.輸入/輸出端口()h.只讀光盤()i.主板()j.電源12345678910Unit2Section2PassageAExercisesIIIretaincomputermemorystoredevicedominance

Thefirstharddisk,createdbyIBMin1956,weighedoveratonnebutcould1._________only5MBoffiles.Modernharddisksaresmaller,cheaperandtypicallystore100,000timesmoredata.TheharddiskisaninvaluablepartofaPCbecause,unlikeacomputer’smain2._________,whichiswipedwhenthe3._________isturnedoff,theharddiskwill4._________fileswhenthereisnopowerrunningthroughthecomputer.Theyhavealsofoundtheirwayintootherdevicesincludingportablemediaplayers,camcordersanddigital(Freeview)TVrecorders.However,theharddisk’s5._________overourcomputersisnowbeingthreatenedbyanentirelydifferentstorage6._________-theSolid-StateDisk(SSD).SSDsarebuiltwithFlashmemory,thesameasisusedinadigitalcamera’smemorycard,whichmakesthemmuchfasterthanharddisks.storememorycomputerretaindominancedeviceUnit2ComputerHardwareSection2PassageBIntroducingCommonPeripheral1、你覺得計算機(jī)外圍設(shè)備指的是什么，請舉例說明2、找一個你熟悉的外圍設(shè)備向同學(xué)們介紹Unit2Section2PassageBperipheralperformhandleOAUSBflashscannerfaxmachinestoragedevicefloppydiskcapacitytextdigitalimage3Dillustrationsdaisy-wheelprinterdot-matrixprinterink-jetprinterlaserprinterLCDLEDMFPAIOMFDMP3MP4DVDCPSPaudioWMAscreenvideoUMDUnit2Section2PassageBAperipheralisanobjectattachedtothecomputertohelpitperformsomenecessaryassignmentsnoneoftheotherpartscanhandle.Inmostscenarios,noperipheralisrequiredbutnowadays,itisunusualforacomputernottohaveanyperipheralatall.BelowaresomeofthecommonperipheralsusedforOfficeAutomation(OA)andforentertainment.OfficeAutomationisageneraltermthatincludesawiderangeofapplicationsofcomputer,communicationandinformationtechnologiesinofficeenvironments.ThemostusedperipheralsforOAaretheUSBflash,ascanner,theprinter,theFaxmachine,etc.

Unit2Section2PassageBAUSBflashdriveconsistsofflashmemorydatastoragedeviceintegratedwithaUSB(UniversalSerialBus)1.1or2.0interface.Itisusedforthesamepurposesasfloppydisksbutsmaller,faster,moredurable,andwiththousandsoftimesmorecapacity.Storagecapacitiesin2010canbeaslargeas256GBwithsteadyimprovementsinsizeandpricepercapacity.Unit2Section2PassageBAscannerisadevicethatopticallyscansimages,printedtext,handwriting,oranobject,andconvertsittoadigitalimage.Ascannerworksbydigitizinganimage--dividingitintoagridofboxesandrepresentingeachboxwitheitherazerooraone,dependingonwhethertheboxisfilledin.Theresultingmatrixofbits,calledabitmap,canthenbestoredinafile,displayedonascreen,andmanipulatedbyprograms.Commonexamplesaretheflatbedscanners,thehand-heldscanners,and3Dscanners.

Unit2Section2PassageBAprinterisadevicethatprintstextorillustrationsonpaper.Therearemanydifferenttypesofprinters.Intermsofthetechnologyutilized,printerscanbeclassifiedintodaisy-wheelprinterswhichproduceletter-qualityprintbutcannotprintgraphics,dot-matrixprinterswhichcreatecharacterswithdotsmadebystrikingpinsagainstaninkribbon,ink-jetprinterswhichpraysinkatasheetofpapertoproducehigh-qualitytextandgraphics,laserprinterswhichusethesametechnologyascopymachinesandproduceveryhighqualitytextandgraphics,LCD&LEDprinterswhichuseliquidcrystalsorlight-emittingdiodestoproduceanimageonthedrum,lineprinterswhichcontainachainofcharactersorpinsthatprintanentirelineatonetime,andthermalprintersthatworkbypushingheatedpinsagainstheat-sensitivepaper.

Unit2Section2PassageBAfaxmachineisadevicethatcansendorreceivepicturesandtextoveratelephoneline.Faxmachinesworkbydigitizinganimage--dividingitintoagridofdots.Eachdotiseitheronoroff,dependingonwhetheritisblackorwhite.Electronically,eachdotisrepresentedbyabitthathasavalueofeither0(off)or1(on).Inthisway,thefaxmachinetranslatesapictureintoaseriesofzerosandones(calledabitmap)thatcanbetransmittedlikenormalcomputerdata.

Unit2Section2PassageBAnMFP(MultiFunctionProduct/Printer/Peripheral),multifunctional,all-in-one(AIO),orMultifunctionDevice(MFD),isanofficemachinewhichincorporatesthefunctionalityofmultipledevicesinone,soastohaveasmallerfootprintinahomeorsmallbusinesssetting,ortoprovidecentralizeddocumentmanagement/distribution/productioninalarge-officesetting.AtypicalMFPmayactasacombinationofprinter,scanner,photocopier,andfax.Unit2Section2PassageBThemostusedperipheralsforentertainmentincludeMP3players,MP4players,DC,DV,andPSP,etc.AnMP3playerisaportableconsumerelectronicdevicethatallowsyoutostoreandplaysmusicfilesinMP3format.MP3playersaresmallhandhelddevicesandoftenuseflashmemoryforstoringMP3files.WhilefrequentlycalledanMP3player,itfitsunderthebroadercategoryofdigitalaudioplayersandoftenanMP3playerscanuseotherfiletypessuchasWindowsMediaAudio(WMA).

Unit2Section2PassageBThenameMP4playerisamarketingtermforportablemediaplayersthatcomplywithcertainstandardsandformats.Thenameitselfisamisnomer,sincemostMP4playersareincompatiblewiththeMPEG-4Part14orthemp4containerformat.Instead,thetermsymbolizestheirstatusassuccessorsofMP3players.Inthissense,insomemarketslikeBrazil,anynewfunctionaddedtoagivenmediaplayerisfollowedbyanincreaseinthenumber,soitispossibletofind“MP5Players”andeven“MP12Players”Unit2Section2PassageBAdigitalcamera(alsodigicamorcameraforshort)isacamerathattakesvideoorstillphotographs,orboth,digitallybyrecordingimagesviaanelectronicimagesensor.Digitalcamerascandisplayimagesonascreenimmediatelyaftertheyarerecorded,storethousandsofimagesonasinglesmallmemorydevice,recordvideowithsound,anddeleteimagestofreestoragespace.Somecancroppicturesandperformotherelementaryimageediting.Fundamentallytheyoperateinthesamemannerasfilmcameras,buttheimagepickupdeviceiselectronicratherthanchemical.Unit2Section2PassageBDVisaformatforrecordingandplayingbackdigitalvideo.Itwaslaunchedin1995withjointeffortsofleadingproducersofvideocamerarecorders.ThePlayStationPortable(PSP)isahandheldgameconsolemanufacturedandmarketedbySonyComputerEntertainment.Itisthefirsthandheldvideogameconsoletouseanopticaldiscformat,UniversalMediaDisc(UMD),asitsprimarystoragemedium.Otherdistinguishingfeaturesoftheconsoleincludeitslargeviewingscreen,robustmulti-mediacapabilities,andconnectivitywiththePlayStation3,otherPSPs,andtheInternet.Unit2Section2PassageBExercisesI1.()Inmostscenarios,noperipheralisrequiredbutnowadays,soitisusualforacomputernottohaveanyperipheralatall.2.()Dot-matrixprinterscreatecharacterswithdotsmadebystrikingpinsagainstaninkribbon.3.()Afax-machineisadevicethatopticallyscansimages,printedtext,handwriting,oranobject,andconvertsittoadigitalimage.4.()Ink-jetprinterswhichproduceletter-qualityprintbutcannotprintgraphics.5.()MP4playersarecompatiblewiththeMPEG-4Part14orthemp4containerformat.6.()AnMP3playeronlyallowsyoutostoreandplaysmusicfilesinMP3format.

FTFFFFUnit2Section2PassageBExercisesII1.Aperipheralisanobject____________thecomputertohelpitperformsome____________noneoftheotherpartscanhandle.2.OfficeAutomationisa____________thatincludesawiderangeofapplicationsofcomputer,____________andinformationtechnologiesin____________.3.AUSBflashdriveconsistsofflashmemory____________integratedwitha____________.4.Intermsofthetechnologyutilized,printerscanbeclassifiedinto____________,dot-matrixprinters,____________,____________,LCD&LEDprinters,____________,andthermalprinters.

attachedtonecessaryassignmentsgeneraltermcommunicationofficeenvironmentsdatastoragedeviceUSB1.1or2.0interfacedaisy-wheelprintersink-jetprinterslaserprinterslineprintersUnit2Section2PassageBExercisesII5.LCD&LEDprintersuse____________or______________toproduceanimageon________.6.Adigitalcameraisacamerathattakesvideoor____________,orboth,digitallybyrecordingimagesvia______________________.7.AnMFPisalsocalled____________,________,or_______________;itisanofficemachinewhich________thefunctionalityofmultipledevicesinone8.ThePSPisahandheld__________manufacturedandmarketedbySonyComputerEntertainment.Itisthefirsthandheldvideogameconsoletouse______________,UniversalMediaDisc(UMD),asits__________________.

liquidcrystalsLight-emittingdiodesthedrumanelectronicimagessensorstillphotographsmultifunctionalall-in-oneMultifunctionDeviceincorporatesmultifunctionalanopticaldiscformatprimarystoragemediumUnit2Section3ComputerEnglishReading,Part2計算機(jī)英語詞匯的特點

計算機(jī)英語詞匯主要可分為以下幾類：專業(yè)技術(shù)詞匯半技術(shù)詞匯非技術(shù)詞匯非詞匯(即各種符號)計算機(jī)英語詞匯體現(xiàn)出以下幾方面特點：1．轉(zhuǎn)義性2．專業(yè)術(shù)語和專業(yè)略語高頻率使用3．簡單的屏幕命令，省略名詞、動詞4．使用各種構(gòu)詞法5．借用6．新詞匯不斷出現(xiàn)Unit2Section4PartIIIofCommencementSpeechatStanfordGivenbySteveJobsIntelSettlesAntitrustAMDCasefor$1.2bnABriefRundownofWhatYouNeedinaLaptopTipsforcommonPCproblems:UpgradeYourPCwithaNewGraphicsCard

第一節(jié)活塞式空壓機(jī)的工作原理第二節(jié)活塞式空壓機(jī)的結(jié)構(gòu)和自動控制第三節(jié)活塞式空壓機(jī)的管理復(fù)習(xí)思考題單擊此處輸入你的副標(biāo)題，文字是您思想的提煉，為了最終演示發(fā)布的良好效果，請盡量言簡意賅的闡述觀點。第六章活塞式空氣壓縮機(jī)

piston-aircompressor壓縮空氣在船舶上的應(yīng)用：

1.主機(jī)的啟動、換向；

2.輔機(jī)的啟動；

3.為氣動裝置提供氣源；

4.為氣動工具提供氣源；

5.吹洗零部件和濾器。

排氣量:單位時間內(nèi)所排送的相當(dāng)?shù)谝患壩鼩鉅顟B(tài)的空氣體積。單位：m3/s、m3/min、m3/h第六章活塞式空氣壓縮機(jī)

piston-aircompressor空壓機(jī)分類：按排氣壓力分：低壓0.2～1.0MPa；中壓1～10MPa；高壓10～100MPa。按排氣量分：微型<1m3/min；小型1～10m3/min；中型10～100m3/min；大型>100m3/min。第六章活塞式空氣壓縮機(jī)

piston-aircompressor第一節(jié)活塞式空壓機(jī)的工作原理容積式壓縮機(jī)按結(jié)構(gòu)分為兩大類：往復(fù)式與旋轉(zhuǎn)式兩級活塞式壓縮機(jī)單級活塞壓縮機(jī)活塞式壓縮機(jī)膜片式壓縮機(jī)旋轉(zhuǎn)葉片式壓縮機(jī)最長的使用壽命-

----低轉(zhuǎn)速（1460RPM），動件少（軸承與滑片），潤滑油在機(jī)件間形成保護(hù)膜，防止磨損及泄漏，使空壓機(jī)能夠安靜有效運作；平時有按規(guī)定做例行保養(yǎng)的JAGUAR滑片式空壓機(jī)，至今使用十萬小時以上，依然完好如初，按十萬小時相當(dāng)于每日以十小時運作計算，可長達(dá)33年之久。因此，將滑片式空壓機(jī)比喻為一部終身機(jī)器實不為過?；?葉)片式空壓機(jī)可以365天連續(xù)運轉(zhuǎn)并保證60000小時以上安全運轉(zhuǎn)的空氣壓縮機(jī)1.進(jìn)氣2.開始壓縮3.壓縮中4.排氣1.轉(zhuǎn)子及機(jī)殼間成為壓縮空間，當(dāng)轉(zhuǎn)子開始轉(zhuǎn)動時，空氣由機(jī)體進(jìn)氣端進(jìn)入。2.轉(zhuǎn)子轉(zhuǎn)動使被吸入的空氣轉(zhuǎn)至機(jī)殼與轉(zhuǎn)子間氣密范圍，同時停止進(jìn)氣。3.轉(zhuǎn)子不斷轉(zhuǎn)動，氣密范圍變小，空氣被壓縮。4.被壓縮的空氣壓力升高達(dá)到額定的壓力后由排氣端排出進(jìn)入油氣分離器內(nèi)。4.被壓縮的空氣壓力升高達(dá)到額定的壓力后由排氣端排出進(jìn)入油氣分離器內(nèi)。1.進(jìn)氣2.開始壓縮3.壓縮中4.排氣1.凸凹轉(zhuǎn)子及機(jī)殼間成為壓縮空間，當(dāng)轉(zhuǎn)子開始轉(zhuǎn)動時，空氣由機(jī)體進(jìn)氣端進(jìn)入。2.轉(zhuǎn)子轉(zhuǎn)動使被吸入的空氣轉(zhuǎn)至機(jī)殼與轉(zhuǎn)子間氣密范圍，同時停止進(jìn)氣。3.轉(zhuǎn)子不斷轉(zhuǎn)動，氣密范圍變小，空氣被壓縮。螺桿式氣體壓縮機(jī)是世界上最先進(jìn)、緊湊型、堅實、運行平穩(wěn)，噪音低，是值得信賴的氣體壓縮機(jī)。螺桿式壓縮機(jī)氣路系統(tǒng)：

A

進(jìn)氣過濾器

B

空氣進(jìn)氣閥

C

壓縮機(jī)主機(jī)

D

單向閥

E

空氣/油分離器

F

最小壓力閥

G

后冷卻器

H

帶自動疏水器的水分離器油路系統(tǒng)：

J

油箱

K

恒溫旁通閥

L

油冷卻器

M

油過濾器

N

回油閥

O

斷油閥冷凍系統(tǒng)：

P

冷凍壓縮機(jī)

Q

冷凝器

R

熱交換器

S

旁通系統(tǒng)

T

空氣出口過濾器螺桿式壓縮機(jī)渦旋式壓縮機(jī)

渦旋式壓縮機(jī)是20世紀(jì)90年代末期開發(fā)并問世的高科技壓縮機(jī)，由于結(jié)構(gòu)簡單、零件少、效率高、可靠性好，尤其是其低噪聲、長壽命等諸方面大大優(yōu)于其它型式的壓縮機(jī)，已經(jīng)得到壓縮機(jī)行業(yè)的關(guān)注和公認(rèn)。被譽為“環(huán)保型壓縮機(jī)”。由于渦旋式壓縮機(jī)的獨特設(shè)計，使其成為當(dāng)今世界最節(jié)能壓縮機(jī)。渦旋式壓縮機(jī)主要運動件渦卷付，只有磨合沒有磨損，因而壽命更長，被譽為免維修壓縮機(jī)。

由于渦旋式壓縮機(jī)運行平穩(wěn)、振動小、工作環(huán)境安靜，又被譽為“超靜壓縮機(jī)”。

渦旋式壓縮機(jī)零部件少，只有四個運動部件,壓縮機(jī)工作腔由相運動渦卷付形成多個相互封閉的鐮形工作腔，當(dāng)動渦卷作平動運動時，使鐮形工作腔由大變小而達(dá)到壓縮和排出壓縮空氣的目的。活塞式空氣壓縮機(jī)的外形第一節(jié)活塞式空壓機(jī)的工作原理一、理論工作循環(huán)（單級壓縮）工作循環(huán)：4—1—2—34—1吸氣過程

1—2壓縮過程

2—3排氣過程第一節(jié)活塞式空壓機(jī)的工作原理一、理論工作循環(huán)（單級