Fuel Injector - Diesel Ignition Pressure
Okuqukethwe
Imibhobho noma imibhobho isetshenziselwa ukunikeza njalo inani elifanele likaphethiloli endaweni evuthayo yezinjini zikadizili. Lezi zingxenye ezincane kodwa ezigcizelelwe kakhulu zigcina injini isebenza kahle izikhathi eziyizinkulungwane ngomzuzu. Nakuba zenziwe ngezinto ezisezingeni eliphezulu, lezi zingxenye zingaphansi kokuguga. Lapha ungafunda ukuthi ungawabona kanjani ama-injection kaphethiloli anephutha nokuthi ungabhekana kanjani nokuphuka.
Injini yomjovo oqondile idinga ingcindezi
Izinjini zikadizili zibizwa ngokuthi "izicishi". Lokhu kusho ukuthi azidingi ukuthungela kwangaphandle ngendlela ye-spark plug ukushisa uphethiloli. . Ingcindezi yokuminyanisa ekhiqizwa ipiston ehambayo eya phezulu yanele ukuthi ibangele ukuqhuma okufiswayo kwengxube yodizili nomoya.
Kodwa-ke, kubalulekile ukuthi inani elifanele likaphethiloli wedizili lijovwe egunjini elivuthayo ngesikhathi esilungile ngendlela ene-athomu efanelekile. Uma amaconsi emakhulu kakhulu, udizili ngeke uphele nya. . Uma zizincane kakhulu, injini izoshisa ngokweqile noma ingasebenzi kahle.
Ukuze udale lesi simo esinokwethenjelwa, ama-injection (ngokuvamile enziwe ngendlela yomhlangano we-pump-injector) anikezela uphethiloli ekamelweni elivuthayo ngokucindezela okukhulu. Ingcindezi emaphakathi 300-400 bar. Nokho, iVolvo inemodeli yamabha angu-1400.
Ngaphandle kwezinjini zikadizili, kukhona nezinjini zikaphethiloli ezijova ngqo. . Basebenzisa nama-injection kaphethiloli.
Isakhiwo nesimo somjovo kaphethiloli
Umbhobho wokujova uqukethe ingxenye ye-nozzle kanye nengxenye yepompo . I-nozzle iphumela ekamelweni elivuthayo. Iqukethe iphinikhodi elingenalutho eline ububanzi bomgodi 0,2 mm .
Ipompo ifakwe ngemuva komhlangano ofanayo, ofaka uphethiloli ekamelweni elivuthayo ngokucindezela okudingekayo. . Ngakho-ke, i-nozzle ngayinye inepompo yayo. Kuhlala kuqukethe i-hydraulic piston, esethwe kabusha isiphethu . Imibhobho itholakala phezulu ikhanda lesilinda njengama-spark plugs emotweni esebenza ngophethiloli.
Ukukhubazeka komjovo wamafutha
I-nozzle yomjovo iyingxenye yemishini engaphansi kwemithwalo ephezulu . Ungaphansi kwamandla aqine ngokwedlulele kuye nakuye. Iphinde ibe ngaphansi kwemithwalo ephezulu yokushisa. . Isizathu esiyinhloko sokukhubazeka ukupheka emlonyeni noma ngaphakathi kuwo.
- Ukupheka kuyinsalela kaphethiloli oshiswe ngokungaphelele .
Kulokhu, i-plaque iyakhiwa, okwenza ukuvutha kube kubi nakakhulu, okwenza i-plaque ibe ngaphezulu nangaphezulu.
Ukukhubazeka komjovo wesibaseli kunezimpawu ezilandelayo:
| – Injini engasebenzi kahle – High fuel – Intuthu emnyama ngenxa yokuphuma komthwalo - Izingozi zenjini |
Isici se-nozzle akuyona nje ebizayo futhi ayijabulisi . Uma ingalungiswa ngokushesha ngangokunokwenzeka, kungase kubangele ukulimala okukhulu kwenjini. Ngakho-ke, izinkinga ezinama-injection akufanele zihlehliswe kamuva, kodwa zixazululwe ngokushesha.
Ukuxilongwa komjovo wamafutha
Kunendlela elula nephephe kakhulu yokuhlola ukusebenza kwezijovo zenjini. . Ngokuyisisekelo, okudingayo nje amapayipi enjoloba futhi abaningi amathini anosayizi ofanayo mangaki amasilinda enjinini. Amapayipi axhunywe emgqeni wokukhipha imibhobho futhi axhunywe engilazini eyodwa ngayinye . Manje qala injini bese uyiyeka isebenze 1-3 imizuzu . Uma ama-injection eqinile, ithini ngalinye lizothola inani elifanayo likaphethiloli.
Ama-injection anephutha zitholwa ngokuthi zikhipha uphethiloli omningi kakhulu noma ongaphansi kakhulu emgqeni wokudonsa amanzi.
Ngokuxilongwa okunjalo, imakethe inikeza ikhithi yokuhlola cishe amakhilogremu angu-80. Kunconywe kakhulu njengoba yakhelwe yona kanye leyo nhloso .
Ungabhekana kanjani nokukhubazeka kuma-injection
Ngaphambi kokufunda: ama-injection abiza kakhulu. Ngomjovo owodwa kufanele ucabangele ama-220 - 350 lbs. Njengoba imibhobho kufanele ihlale ishintshwa njengesethi ephelele, kuzodingeka ukhokhe phakathi kuka-900 no-1500 wama-euro esiliva ukuze uthole izingxenye eziyisipele.
Izindaba ezinhle nokho, ukuthi okwamanje kunenqwaba yezinkampani ezikhethekile ezingabuyisela ama-injection. Lokhu kuhlanza umjovo wawo wonke amadiphozithi futhi kumiselele zonke izingxenye ezigqokiwe njengezigxivizo noma izinsimbi.
Khona-ke, umlomo wombhobho uyahlolwa bese ubuyiselwa ekhasimendeni njengengxenye entsha. Ukusetshenziswa kwezingxenye ezenziwe kabusha nakho kuye kwaba njalo inzuzo enkulu: lapho ufaka ama-injection akhiwe kabusha, ukulungiswa kabusha kweyunithi yokulawula injini akudingekile . Nokho, ngenxa yale njongo, kubalulekile ukubuyisela umlomo wombhobho ngamunye endaweni owawufakwe kuyo ngaphambili.
Ngokwethiyori, ukususa ama-injector kulula kakhulu. . Awahlangani njengama-spark plug, kodwa ngokuvamile " kuphela »zifakiwe. Aphethwe iziqeshana ezinamathiselwe ngenhla kwazo. Kodwa-ke, ekusebenzeni, izinto zibukeka zihluke kakhulu. . Ukuze ufike kuma-injection, udinga ukuqaqa izinto eziningi.
Uma uwadalula futhi ukhulula ama-latches, umuntu othanda imoto uvame ukumangala ngendlela engathandeki: umlomo wombhobho uhlezi uqinile enjinini futhi awuxegi ngisho nangomzamo omkhulu kakhulu . Ngenxa yalokhu, abakhiqizi abaziwayo baye bahlakulela ama-solvents akhethekile aqala i-caking, okubhekene nokuqina okuqinile kwe-nozzle.
Kodwa-ke, noma ngabe usebenzisa i-solvent, ukususa i-nozzle kungaba umzamo omkhulu. Lapha kubalulekile ungalokothi ulahlekelwe isineke futhi ubangele umonakalo owengeziwe enjinini.
Hlala usebenza kuwo wonke ama-nozzles!
Njengoba wonke ama-nozzles alayishwa cishe ngokulinganayo, aguga cishe ngokulinganayo.
Ngisho noma i-injection eyodwa noma amabili kuphela atholakala enesici ngesikhathi sokuhlolwa, ukwehluleka kwama-injection asele kuyindaba yesikhathi kuphela.
Ngakho-ke, indlela yokonga kakhulu ukulungiswa kabusha kwawo wonke ama-injection emnyangweni wesevisi . Umbhobho omusha kufanele uthengwe njengomusha kuphela lapho uchwepheshe weluleka ngokuthi awusakhiqizwa kabusha.
Ngale ndlela wonga ezindlekweni eziphezulu futhi uthole injini esebenza kahle futhi.
Ukwengeza okunengqondo
Lapho ama-nozzles esusiwe, umshini awunyakazi . Ngakho, leli yithuba elihle lokuqhubekela phambili ekulungiseni okwengeziwe. Ezinjinini zikadizili, kuyanconywa futhi i-valve ehlanzekile ye-EGR futhi ungenise ngokuningi . Baphinde baphuze ngokuhamba kwesikhathi.
Isihlungi sezinhlayiya ku-exhaust singasuswa futhi sihlanzwe nguchwepheshe. Ekugcineni, lapho kufakwa ama-injection avuselelwe kabusha, zonke izihlungi zephepha ezifana nempova, ikhabethe noma izihlungi zomoya zenjini nazo zingashintshwa. . Isihlungi sikadizili siyashintshwa ukuze kube kuphela uphethiloli oqinisekisiwe ohlanzekile ofika kuma-injection ashintshiwe. Ekugcineni, ukushintsha uwoyela ukuze uthole injini ebushelelezi nehlanzekile kuyisinyathelo sokugcina. , okukuvumela ukuthi uqale ngokuthula amakhilomitha ayizinkulungwane ezingamashumi amathathu alandelayo.
