K20 - Honda injini. Imininingwane kanye nezinkinga ezivame kakhulu

Iyunithi yamandla yakhiqizwa kusukela ngo-2001 kuya ku-2011. Ifakwe kumamodeli ezimoto ezithandwa kakhulu zomkhiqizi waseJapan, okuhlanganisa i-Accord ne-Civic. Amamodeli amaningana ashintshiwe e-K20 nawo adalwe ngesikhathi sokukhiqiza. Injini yalolu hlobo ngaphandle kwezimfihlo esihlokweni sethu!

I-K20 - injini esebenza kahle kakhulu

Ukwethulwa kwenjini ngo-2001 kwagqugquzelwa ukushintshwa kwamayunithi emndenini wakwa-B. Ngenxa yezibuyekezo ezinhle kakhulu ezatholwa inguqulo yangaphambilini, kwakunokungabaza ukuthi inguqulo entsha izophila ngokuvumelana nalokho okwakulindelwe. Nokho, ukwesaba kwabonakala kungenasisekelo. Ukukhiqizwa kwe-K20 kwaba yimpumelelo.

Ekuqaleni, i-K20 yethulwa ngezinhlobo zango-2002 RSX kanye neCivic Si. Isici esiyingqayizivele sesithuthuthu ukuthi sasifanele kokubili ukugibela okuguquguqukayo kanye nokugibela idolobha okuvamile. 

Izixazululo zokuklama ezisetshenziswa kudrayivu

Yakhiwa kanjani i-K20? Injini ifakwe isistimu ye-valve ye-DOHC futhi ama-roller shafts asetshenziswa ekhanda lesilinda ukunciphisa ukungqubuzana. Ngaphezu kwalokho, isithuthuthu sisebenzisa i-distributorless coil-spark ignition system. Ukucaciswa kwayo kusekelwe eqinisweni lokuthi i-spark plug ngayinye inekhoyili yayo.

Abaklami bezinjini abazange bakhethe uhlelo lwesikhathi lwama-valve olujwayelekile olususelwa kumsabalalisi. Kunalokho, kwasetshenziswa isimiso sesikhathi esilawulwa yikhompyutha. Ngenxa yalokhu, kwaba nokwenzeka ukulawula izigaba ukuthungela usebenzisa ECU esekelwe ulwazi izinzwa ezihlukahlukene.

I-cast iron bushings namabhulokhi amafushane

Elinye iphuzu elifanele ukunakwa yiqiniso lokuthi amasilinda afakwe ama-cast iron liners. Babenezici ezifanayo nalezo ezisetshenziswa emindenini yamabhayisikili ka-B no-F. Njengelukuluku, amasilinda e-FRM afakiwe ochungechungeni lwe-H no-F powertrains olutholakala ku-Honda S2000.

Kukhona izixazululo ezinemininingwane efanayo naleyo endabeni yochungechunge lwe-B. Sikhuluma ngamabhulokhi amabili amafushane womklamo ofanayo nomehluko ekuphakameni kwedekhi engu-212 mm. Endabeni yamabhulokhi i-K23 ne-K24, lezi zilinganiso zifinyelela ku-231,5 mm.

Izinguqulo ezimbili zesistimu ye-Honda i-Vtec

Kunezinhlobo ezimbili zesistimu ye-Honda i-Vtec ochungechungeni lwe-K. Angakwazi ukuhlonyiswa nge-valve yesikhathi esiguquguqukayo i-VTC kukhamera yokuthatha, njengoba kunjalo ngokuhluka kwe-K20A3. 

Indlela esebenza ngayo ukuthi nge-rpm ephansi yi-valve eyodwa kuphela yokungena evuleke ngokuphelele. Eyesibili, ngokuphambene, ivula kancane kuphela. Lokhu kudala umphumela wokushwiba egunjini lomlilo okuholela ekwenzeni ngcono i-athomu kaphethiloli futhi lapho injini isebenza ngesivinini esiphezulu womabili amavalvu avuleka ngokugcwele okuholela ekusebenzeni okuthuthukisiwe kwenjini.

Ngakolunye uhlangothi, kumamodeli we-K20A2 afakwe ezimotweni ze-Acura RSX Type-S, i-VTEC ithinta womabili ama-valve okungenisa nawokukhipha. Ngenxa yalesi sizathu, ama-valve womabili angasebenzisa izinhlobo ezahlukene zamakhamera. 

Izinjini ze-K20C zisetshenziswa ku-motorsport.

Leli lungu lomndeni wakwa-K lisetshenziswa amaqembu aqhudelana ochungechungeni lwe-F3 no-F4. Umehluko wokuklama ukuthi izinjini azinayo i-turbocharger. Lolu hlobo luphinde lwathakaselwa ngabashayeli balokhu okubizwa. I-hot rodd ne-kit car, ngenxa yamathuba okufaka injini kusistimu yokushayela ngamasondo angemuva ubude.

I-K20A - idatha yobuchwepheshe

Injini yakhelwe ngokuya nge-in-line yesikimu, lapho amasilinda amane atholakala emgqeni owodwa - eduze kwe-crankshaft evamile. Ivolumu yokusebenza egcwele ingu-2.0 amalitha ku-1 cu. I-cm. Ngokulandelayo, ububanzi besilinda buyi-998 mm ne-stroke engu-3 mm. Kwezinye izinguqulo, idizayini ye-DOHC ingafakwa kabusha ngobuchwepheshe be-i-VTEC.

Inguqulo yezemidlalo ye-K20A - ihluke kanjani?

Yayisetshenziswa ku-Honda Civic RW, le nguqulo yalolu phiko isebenzisa i-flywheel ene-chrome-plated, kanye nezinduku zokuxhuma ezinamandla akhuphukayo. Kwasetshenziswa namapiston acindezelayo aphezulu kanye neziphethu zamavalvu eziqine kakhulu.

Konke lokhu kuhambisana nama-camshafts ane-stroke eside ahlala isikhathi eside. Kwanqunywa futhi ukupholisha ubuso bokungena nokukhipha amachweba wekhanda le-cylinder - lokhu kusebenza kumamodeli kusukela ngo-2007 kuya ku-2011, ikakhulukazi i-Honda NSX-R.

Ukusebenza kweDrayivu

Izinjini zomndeni wakwa-K20 azizange zibangele izinkinga ezinkulu zokusebenza. Ukungasebenzi kahle okuvame kakhulu kufaka phakathi: ukuvuza kukawoyela okungalawuleki ku-crankshaft main seal kawoyela, i-exhaust camshaft lobe chafing, nokudlidliza ngokweqile kweyunithi yokushayela.

Ingabe Kufanele Ukhethe Izithuthuthu ze-K20? Injini ephawulekayo

Phezu kwamaphutha okubaluliwe, lezi zithuthuthu zisekhona emigwaqweni yethu. Lokhu kungabhekwa njengobufakazi bokwethembeka kwabo. Ngakho-ke, i-K20 iyinjini eklanyelwe i-Honda, noma kunjalo, uma isesesimweni esihle sobuchwepheshe, ingaba yisinqumo esihle.