I-DENSO ingumholi womhlaba kwezobuchwepheshe bukadizili futhi ngo-1991 yaba ngumkhiqizi wokuqala wemishini (i-OE) yamapulagi e-ceramic glow futhi yaphayona uhlelo lwesitimela oluvamile (CRS) ngo-1995. Lobu buchwepheshe buyaqhubeka buvumela inkampani ukusiza abakhiqizi bezimoto emhlabeni jikelele. ukwakha izimoto ezisabelayo, ezisebenza kahle nezithembekile.
Esinye sezici ezibalulekile ze-CRS, ebambe elikhulu iqhaza ekuletheni impumelelo ehambisana nayo, ukuthi isebenza nophethiloli ngaphansi kwengcindezi. Njengoba ubuchwepheshe buthuthukile nokusebenza kwenjini kuba ngcono, kanjalo nengcindezi kaphethiloli ohlelweni inyukile, isuka ku-120 megapascals (MPa) noma 1,200 bar ngesikhathi kwethulwa uhlelo lwesizukulwane sokuqala, yaya ku-250 MPa ohlelweni lwamanje lwesizukulwane sesine. Ukukhombisa umthelela omkhulu owenziwe yile ntuthuko, ukusetshenziswa kukaphethiloli okuqhathaniswayo kwehle ngo-50%, ukukhishwa kwegesi kwehle ngo-90% namandla enjini akhuphuka ngo-120%, phakathi neminyaka engu-18 phakathi kwe-CRS yesizukulwane sokuqala nesesine.
High Pressure Fuel Pumps
Ukuze isebenze ngempumelelo kule ngcindezi ephezulu kangako, i-CRS incike ezintweni ezintathu ezibalulekile: iphampu kaphethiloli, ama-injection nama-electronics, futhi ngokwemvelo konke lokhu kuye kwathuthukiswa esizukulwaneni ngasinye. Ngakho-ke, amaphampu kaphethiloli okuqala e-HP2 asetshenziswa ikakhulukazi ingxenye yemoto yabagibeli ngasekupheleni kweminyaka yawo-1990, asedlule ezintweni eziningi ukuze abe izinguqulo ze-HP5 ezisetshenziswa namuhla, eminyakeni engama-20 kamuva. Iqhutshwa kakhulu amandla enjini, atholakala ngohlobo olulodwa (HP5S) noma i-dual cylinder (HP5D), nenani lawo lokuphuma elilawulwa yi-valve yokulawula ukushaywa kwangaphambi kokushaya, okuqinisekisa ukuthi iphampu igcina umfutho wayo omkhulu, noma cha. injini ingaphansi komthwalo. Eceleni kwephampu ye-HP5 esetshenziselwa izimoto zabagibeli kanye nezimoto zokuthengisa ezinomthamo omncane, kukhona i-HP6 yezinjini zamalitha ayisithupha kuya kwayisishiyagalombili kanye ne-HP7 yamandla angaphezu kwalokho.
Izijovo Zamafutha
Nakuba, kuzo zonke izizukulwane, umsebenzi we-fuel injector awushintshile, inkimbinkimbi yenqubo yokulethwa kwephethiloli ithuthuke kakhulu, ikakhulukazi uma kuziwa ekusakazeni iphethini kanye nokuhlakazwa kwamaconsi kaphethiloli ekamelweni, ukukhulisa ukusebenza kahle komlilo. Nokho, indlela ezilawulwa ngayo eqhubeka ishintsha kakhulu.
Njengoba izindinganiso zomhlaba wonke ezikhishwayo ziya ngokuya ziqina, izijovo ezisebenza ngomshini zadedelwa yizinguqulo ze-electromagnetic ezilawulwa yi-solenoid, zisebenza ngama-elekthronikhi asezingeni eliphezulu ukuze kuthuthukiswe ukusebenza kwazo futhi ngaleyo ndlela kuncishiswe ukungcola. Kodwa-ke, njengoba nje i-CRS iqhubekile nokuvela, kanjalo nomjovo, ukuze kufinyelelwe izindinganiso zakamuva zokukhishwa, ukulawula kwabo kuye kwadingeka kucace kakhulu futhi isidingo sokuphendula kuma-microsecond siyafuneka. Lokhu sekuholele ekutheni ama-injection akwaPiezo angene embangweni.
Kunokuthembela kumandla kazibuthe kagesi, lawa ma-injection aqukethe amakristalu e-piezo, okuthi, lapho evezwe amandla kagesi, anwebe, abuyele kuphela kusayizi wawo wangempela njengoba ephuma. Lokhu kunwetshwa nokufinyela kwenzeka kuma-microsecond futhi inqubo iphoqa uphethiloli osuka kumjovo uye egumbini. Ngenxa yokuthi angakwazi ukusebenza ngokushesha okungaka, ama-injection e-Piezo angakwazi ukwenza imijovo eminingi ngesilinda ngasinye bese kuba inguqulo ecushiwe ye-solenoid, ngaphansi kwengcindezi ephakeme kaphethiloli, ethuthukisa ukusebenza kahle komlilo namanje.
Ezogesi
Isici sokugcina ukuphathwa kwenqubo yomjovo nge-elekthronikhi, okuhambisana nokuhlaziywa kweminye imingcele eminingi, ngokwesiko kukalwa kusetshenziswa inzwa yokucindezela ukukhombisa ukucindezela kokuphakelayo kwesitimela sikaphethiloli kuyunithi yokulawula injini (ECU). Kodwa-ke, naphezu kokuthuthukiswa kobuchwepheshe, izinzwa zokucindezela uphethiloli zisengahluleka, zibangele amakhodi amaphutha futhi, ezimweni ezimbi kakhulu, ukuvala ukuthungela okuphelele. Njengomphumela, i-DENSO isungule enye indlela enembe kakhudlwana ekala ingcindezi kusistimu yomjovo kaphethiloli ngenzwa eshumekwe kumjovo ngamunye.
Ngokusekelwe kusistimu yokulawula iluphu evaliwe, I-Intelligent-Accuracy Refinement Technology ye-DENSO (i-ART) iwumshini wokuzifundela ofakwe i-microprocessor yayo, eyivumela ukuthi ilungise ngokuzenzakalelayo inani lomjovo kaphethiloli kanye nesikhathi kumazinga azo alungile futhi ikhulume ngalokhu. ulwazi mayelana ne-ECU. Lokhu kwenza kube lula ukugada nokujwayela umjovo kaphethiloli ngokuvutha ngakunye kumasilinda futhi kusho ukuthi iyazikhokhela futhi ngesikhathi sokusebenza kwayo. I-i-ART iwukuthuthuka i-DENSO engagcinanga ngokuyifaka kuma-injection esizukulwane sesine se-Piezo, kodwa futhi ikhethe izinguqulo ezicushiwe ze-solenoid zesizukulwane esifanayo.
Inhlanganisela yomfutho ophakeme womjovo kanye nobuchwepheshe be-i-ART kuwukuphumelela okusiza ukukhulisa ukusebenza kwenjini nokunciphisa ukusetshenziswa kwamandla, ukukhiqiza indawo esimeme kakhudlwana futhi kuqhubekisele phambili isigaba esilandelayo sokuvela kukadizili.
I-Aftermarket
Omunye wemiphumela emikhulu ye-aftermarket ezimele yaseYurophu ukuthi, nakuba amathuluzi okulungisa kanye namasu asathuthukiswa kunethiwekhi yokulungisa egunyazwe i-DENSO, okwamanje ayikho inketho esebenzayo yokulungisa amaphampu kaphethiloli esizukulwane sesine noma ama-injection.
Ngakho-ke, nakuba isevisi nokulungiswa kwe-CRS yesizukulwane sesine kungenziwa, futhi kufanele, kwenziwe umkhakha ozimele, amaphampu kaphethiloli noma ama-injector ahlulekile okwamanje akukwazi ukukhandwa, ngakho-ke kufanele kushintshwe izingxenye ezintsha zekhwalithi ye-OE ehambisanayo ehlinzekwa abakhiqizi abahloniphekile, abanjalo. njenge-DENSO.
Isikhathi sokuthumela: Dec-08-2022
