Injini ye-BMW N55: Ukuthembeka kunye neengxaki eziqhelekileyo

I-N55 ithathwa ngokubanzi njengenye yezona njini zihamba phambili zisuka kwi-automaker yaseJamani iBMW. I-BMW yakha le njini ukusuka ngo-2009 ukuya ku-2019 kwaye yasebenzisa injini kuninzi lwemigca yemveliso ye-BMW, ​​kuquka i-3 Series, 4 Series, kunye ne-5 Series sedans.

Oko kwathiwa, ngaba injini ye-N55 inokuthenjwa? Kweli nqaku, siza kujonga kwi-injini ye-N55 kwaye sixoxe ngeminye imiba yokuthembeka kwe-injini.

Isiqulatho
BMW N55 injini amagqabantshintshi
5 eyona miba ixhaphakileyo nge BMW N55 injini
    1. Isigqubuthelo seValve kunye ne-oyile yokucoca indlu ukuvuza kwe-gasket
    2. I-Turbocharger wastegate rattle
    3. Ukungaphumeleli kwempompo yamanzi yombane
    4. Imiba yempompo yoxinzelelo oluphezulu (HPFP).
    5. Ukutshaja umbhobho wokuqhekeka
isiphelo

BMW N55 injini amagqabantshintshi

I-BMW N55 yi-turbocharged inline-six-cylinder injini edibanisa ukusebenza, uqoqosho, kunye neteknoloji yokusika. I-N55, eyasungulwa ngo-2009 njengelandela ku-N54, yinjini yokuqala ye-BMW yokuvelisa ukuba ne- i-turbocharger enye ye-twin-skrola.

Uyilo lukhulisa ukusebenza kwe-turbo, lunciphisa i-lag kunye nokuvelisa amandla aphuculweyo kulo lonke uluhlu lwe-rev. Ukongeza, i-N55 ikwasebenzisa i-BMW's Valvetronic valve timing, i-double-VANOS cam timing, kunye nenaliti yamafutha ngokuthe ngqo ekusebenzeni kunye nokusebenza kakuhle kwamafutha.

I-injini ye-N55 ithathwa njenge-versatile kwaye ibonakala kwiimodeli ezininzi ze-BMW, ​​kuquka i-F30 335i kunye ne-F32 435i sedans, i-E90 / E92 335i coupes, kunye nemoto ye-F10 535i, ebonisa ukuguquguquka kwayo kwiintlobo ezahlukeneyo zezithuthi kunye nesimbo sokuqhuba.

Ikwanika amandla amaqumrhu ezemidlalo adibeneyo afana ne-X3 xDrive35i, X4 xDrive35i, kunye ne-X5 xDrive35i. Isihlwele esisebenza kakhulu, okwangoku, siya kufumana injini ye-turbocharged kwi-M135i, i-M235i, kunye ne-M2 yesizukulwana sokuqala, ethandwa ngabathandi beemoto.

5 eyona miba ixhaphakileyo nge BMW N55 injini

Nangona ithathwa njengethembeke ngakumbi kuneyandulelayo, kukho ezimbalwa iziphene nge BMW N55 injini ukuba abaqhubi kufuneka bazi. Ngezantsi, siza kuchaza iinkcukacha ezintlanu zezona ngxaki zixhaphakileyo:

1. Isigqubuthelo seValve kunye ne-oyile yokucoca indlu ukuvuza kwe-gasket

The i-valve cover gasket kwaye i-oyile filter yezindlu gasket ziphakathi kweengxaki zolondolozo eziqhelekileyo xa kuziwa kwi-injini ye-BMW N55. Ezi gaskets zisetyenziselwa ukutywina amacandelo ahlukeneyo kunye nokuthintela ioli ekungeneni kwiindawo apho inokonakalisa i-injini. Kodwa, ngenxa yobushushu obuphezulu bokusebenza kwe-injini kunye noxinzelelo, ezi gaskets zithande ukuwohloka ngokuhamba kwexesha.

I-gasket yesigqubuthelo sevalve ihlala phakathi kwesivalo sevalve kunye nentloko yesilinda, ikhusela umphezulu we-injini. Ngokuhamba kwexesha, i-gasket inokuthi ibe buthathaka kwaye iqhekeke, i-oyile evuzayo. Iimpawu ezibonisa ukuba i-valve cover gasket iyavuza ziquka ivumba le-oyile etshayo, i-oyile ingena kumbhobho wokuphuma oshushu, i-oyile ebonakalayo kwiikona zevalvu, okanye i-oyile ekwi-injini ngokwayo. Ingalungiswanga, ukuvuza kunokudala iingxaki ezongezelelweyo, kubandakanywa imililo engafanelekanga okanye umonakalo kwiindawo ezingqongileyo, ezifana neekhoyili zokutshisa.

Lo mcimbi ukwachaphazela i-oyile filter housing gasket, etywina indlu yokucoca i-oyile kunye nebhloko. Xa le gasket igqabhuka, ioli inokuthi ingene kwiindawo ezifana ne yombane okanye ibhanti. Oku kunokukhokelela kwimiba yombane okanye iingxaki ze-accessory drive.

Ukuvuza apha ngokuqhelekileyo kubonwa ngokungcoliswa kwe-oyile kwisihluzi sendlu kunye nokulahleka kwe-oyile ngokuthe ngcembe kwaye kufuneka kulungiswe ukugcina injini isebenza. Igaskithi yesigqubuthelo sevalvu kunye ne-oyile yokucoca indlu ye-oyile kulula ukuyitshintsha, nangona kuya kufuna ukucoca imiphezulu yokukhwelana ukuze ufumane itywina elilungileyo ngegasket entsha.

2. I-Turbocharger wastegate rattle

I-rattle ephuma kwi-turbocharger wastegate yenye yeengxaki eziqhelekileyo nge-injini ye-BMW N55, eqhutywa yi-turbo enye ye-twin-scroll turbo yokusebenza kunye nokusebenza kakuhle.

I-wastegate, ethumela ukukhupha kwi turbocharger, inokuthi ekugqibeleni iguge, ibangele i-metallic rattle. Idla ngokubonakala kakhulu ngelixa ungenzi nto okanye kwii-RPM ezisezantsi, xa i-turbo ingasebenzi nzima.

I-Wastegate rattle idla ngokubangelwa yi-loose wastegate actuator okanye unxibelelwano. I-actuator ibeka i-flap ye-wastegate, kwaye njengoko ukunyamezela kunciphisa ngokuguga okanye ukusetyenziswa, i-flap iya kuqala ukungcangcazela. Kwiimeko ezinzima, ukunxiba okunjalo kunokubangela ukuvuza kwinkunkuma kunye nokulahleka koxinzelelo lokunyusa. Oku kukhokelela ekusebenzeni kakubi kwenjini, ukunyuswa kwesantya esicothayo, kunye noqoqosho olubi lwepetroli.

Ingalungiswanga, inkunkuma eyonakeleyo inokuphinda icinezele i-turbocharger kunye nezinye iindawo ze-injini, ezikhokelela kulungiso oluphezulu. Kubathengisi kunye neengcali zokulungisa, ukufumanisa kwangaphambili kubalulekile. Ngamanye amaxesha, ingxaki inokusonjululwa okwethutyana ngokulungisa i-actuator, kodwa rhoqo, inkqubo ye-turbocharger okanye inkunkuma kufuneka itshintshwe.

3. Ukungaphumeleli kwempompo yamanzi yombane 

I-N55 idibanisa i impompo yamanzi yombane ukusebenza kakuhle okupholileyo kunye nokuchaneka. Kodwa le nxalenye inokuguga emva kweemayile ezingama-60,000 ukuya kwezingama-80,000 kwaye inokushiya abaqhubi bevaleleke ecaleni kwendlela ukuba abahoywa.

Ukufudumeza okugqithisileyo kwe-injini, izibane zedeshibhodi ezilumkisayo, isisipholisi sokutshiza, kunye nokusebenza kakubi kwenkqubo yokupholisa zonke ziimpawu zempompo yamanzi evuzayo. Abaqhubi banokufumana izandi ezingaqhelekanga ezivela kwi-injini bay okanye ukuncipha kwamandla ngequbuliso okubangelwa kulawulo lobushushu.

Njengoko impompo yamanzi ilicandelo elibalulekileyo ekugcineni injini isebenza, ukuxilongwa kunye nokutshintshwa kwalo mba kubalulekile.

4. Imiba yempompo yoxinzelelo oluphezulu (HPFP). 

Iingxaki ngeenjini zeBMW N55 impompo yamafutha enoxinzelelo oluphezulu (HPFP), ebonelela ngamafutha kuxinzelelo oluphezulu olufunwa yi-injini ye-injection ye-injini echanekileyo, nazo zibhalwe kakuhle.

Xa i-HPFP iphosakele, inokuphazamisa ukuchaneka kokuhamba kwamafutha, okuchaphazela ukusebenza. Iimpawu eziqhelekileyo ze-HPFP eyaphukileyo ibandakanya ukuqala kwengxaki, ukukrazula ixesha elide, ukwenza ingxolo, ukumisa, ukusebenza kwemowudi eqhwalelayo, kunye nokulahleka kwamandla okubonakalayo ngexesha lokukhawulezisa.

Nangona i-BMW yenze utshintsho olubalulekileyo ukujongana nezi nkxalabo ngokuphucula iteknoloji yepompo kunye nemveliso, isenokusilela, ngakumbi kwiimodeli ezindala. Ungcoliseko lwe-fuel, ukuguga kwecandelo langaphakathi kunye nokukrazula, okanye impazamo inkqubo yamafutha Izixhobo zombane zinokukhokelela ekungaphumelelini kweHPFP.

Ukulungisa i-HPFP eyonakalisiweyo ayilula, ukulungiswa kwexabiso eliphantsi, ngoko ke amanyathelo okuxilongwa kunye nokuthintela kubalulekile. Oomatshini banokusebenzisa uxilongo olunamandla lokubona iimpazamo ze-HPFP kwangethuba, njengeekhowudi zeempazamo (umzekelo, i-P142E okanye i-P0087) okanye ufundo loxinzelelo lwamafutha olungachanekanga.

5. Ukutshaja umbhobho wokuqhekeka

Iplastiki yeBMW N55 umbhobho wentlawulo ibaleka ukusuka kwi-intercooler ukuya kwi-intake manifold, kodwa inokuqhekeka xa ivezwe kumaqondo obushushu aphezulu kunye noxinzelelo olujikeleze i-turbocharger. Oko ekugqibeleni kuya kubangela ukuba inxalenye ijike kwaye ekugqibeleni iqhekeke, ekhokelela ekonyuseni ukuvuza, okuthetha ukuhla kwamandla, ukuphendula okungahambi kakuhle, kunye nomlilo ongalunganga.

Luluvo oluhle ukutshintsha umbhobho wentlawulo yeplastiki kunye ne-aluminiyam eyomeleleyo yasemva kwentengiso okanye icandelo le-silicone. Ziyakwazi ukumelana nokushisa kwaye zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala zihlala khona! Ukongeza, imibhobho yentlawulo yokusebenza kufuneka isebenze, oko kwandisa ukuhamba komoya, ukugcina injini isebenza kakuhle kwaye inike abanini ukusebenza okuthembekileyo.

isiphelo

I-injini ye-BMW N55 inendibaniselwano enamandla yokusebenza ngokufanelekileyo kunye nokusebenza kodwa ayikho ngaphandle kwesabelo sayo semiba. Ukuvuza kweoyile, ukusilela kwempompo yamanzi ombane, ukusilela kweHPFP, ukuqhekeka kwemibhobho yentlawulo, kunye ne-turbocharger wastegate rattle zimbalwa nje zeengxaki ezichaphazela ukuthembeka kwaye zifuna ukhathalelo olulodwa.

Ukukhawulelana nezi ngxaki, amashishini kufuneka aqinisekise ukuba agcina iintsimbi zemoto ezifanelekileyo ukuze abathengi bafumane iindawo eziyimfuneko ukuze injini yabo ye-BMW iphinde isebenze.