Ngemithetho eqinile yokulwa nokungcola, bonke abakhiqizi baphoqeleka ukuthi banciphise ukukhishwa kwegesi. Amazinga akamuva e-EURO6 akhuphule izinga laze lafika ezingeni eliphakeme kakhulu.
Enye yezindlela zokuthola imiphumela ukwenza ukuqhunyiswa kukaphethiloli ngaphakathi kwamasilinda ukuze kucutshungulwe kahle ngangokunokwenzeka. Ama-injection e-Piezo azodlala indima ebalulekile kulokhu.
Kungenziwa kanjani lokhu?
Ukwenza imijovo evamisile enevolumu encane kaphethiloli kanye nengcindezi yomjovo ephezulu, indlela yokushisa isicwenga nesibaseli esiphelele. Izijovo ze-Piezo zisebenzisa amakristalu e-quartz njenge-actuator, eshesha kakhulu uma iqhathaniswa nezijovo zendabuko ze-electromagnetic solenoid.
Iyini i-Piezoelectricity?
I-Piezoelectricity iyinhlanganisela yemiphumela evela ekusebenzeni kukagesi kwezinto ezibonakalayo, ikakhulukazi amakristalu. Lokhu kusho ukuthi uma amandla asetshenziswa kukristalu, isikhungo sebhalansi yezindleko eziqondile nezingezinhle ziyagudluzwa, okubangela ukuba izinto zihlukaniseke kanye nokugudluzwa okulandelanayo kwamandla kagesi.
Yini eyenza i-Piezo injector?
Umjovo we-Piezo wakhiwe ucezu olulodwa olusesimweni sepensela lomshini, kodwa ngaphakathi luqukethe izingxenye ezimbalwa ezimile nezinye ezihambayo.
Ake siqale phezulu komjovo. Lapha sinezindawo zokuxhuma ugesi, ezilandelwa indawo yokufaka uphethiloli ehlanganisa i-high-pressure screw terminal, exhuma emgqeni womjovo. Lesi siteshi sokungenisa uphethiloli sidlula ngaphakathi komjovo futhi ekuqaleni kwawo kukhona isihlungi esincane sensimbi esisesimweni sekhatriji.
Ngesikhathi esifanayo, kukhona i-fuel return circuit endaweni ehlukile. Ukuthuthela endaweni emaphakathi yomjovo, sinemojula ye-Piezo, equkethe i-actuator ye-Piezo eyakhiwe inqwaba yamakristalu futhi yona exhunywe kumojula ye-actuator equkethe ama-valve angu-2, eyodwa eyakhiwe i-piston futhi ngokulandelanayo. i-press spring spring kanye nenye ngevalvu yokushintsha elawula ingxenye yokugeleza kukaphethiloli okuvela emugqeni wokuhlinzeka futhi oqukethwe endaweni yokugcina amanzi.
Okulandelayo, nokukhawulela ukugudluzwa kwalezi zingxenye endaweni ephansi, ipuleti lokuvinjelwa. Ingxenye yokugcina yomjovo yenziwe ngenaliti yomjovo kanye nentwasahlobo elandelwa yindandatho ebambayo, egcina ngombhobho womjovo. Indawo yokugcina yomlomo womjovo kulapho kutholakala khona ama-orifices afutha uphethiloli.
Asebenza kanjani ama-injection e-Piezo?
Ukusebenza kwama-injection e-Piezo kuhlanganisa ukudlulisa amandla kagesi enqwabeni yamakristalu, okuwenza akhule. Njengoba amakristalu ekhipha i-current aphinde ahlehlise usayizi wawo wangempela. Lokhu kwandiswa nokufinyela kwamakristalu kubangela ukuba uphethiloli ujikeleze ngaphakathi komjovo, okubangela ivalvu yenaliti kubhobho lomjovo ukuthi ivuleke futhi ivaleke ngokushesha okukhulu.
Kuthiwani ngesivinini nokunemba?
Isibonelo, uma i-ECU iyalela umjovo ukuthi abe nesikhathi esivulekile esingu-0.5s futhi umjovo unikeze impendulo yokuthi bekuvuliwe 0.496s, i-ECU iyazi ukuthi ingasebenzisa isikhathi esithe xaxa kumjikelezo womjovo olandelayo ukunxephezela. Futhi ngenxa yokuthi ama-injection e-piezo ayashesha, angakwazi ukwenza imijovo eminingi, ngokunembe kakhudlwana kuze kufike ku-7 ngomjikelezo ngamunye, nasezingcindezini eziphakeme, okwandisa i-atomization kaphethiloli.
Kuyini lokhu nge-atomization kaphethiloli?
Ukwanda kwe-athomu kaphethiloli kuba ngcono, njengoba lokhu kusho ukuthi izinhlayiya zamangqamuzana ku-fuel bond zingcono kunomoya-mpilo okhona ngaphakathi kusilinda, okuholela kumjovo osebenza kahle kakhulu, okhiqiza iziqongo ezimbalwa zokushisa, kuyilapho ngesikhathi esifanayo ukuqhuma/ ukusha kwenzeka ngendlela elawulwa kakhulu, kusetshenziswa uphethiloli omncane.
Futhi yini ezozuzwa kulokhu?
Yilokhu kulawulwa kukaphethiloli okunembe kakhulu okuhumushela ekubeni inzuzo enetorque engcono namajika kagesi, nokukhishwa okuphansi kokungcola, ukuze kusetshenziswe uphethiloli ophansi kakhulu.
Ingabe ama-injection e-Piezo okwamanje angcono kune-solenoid evamile?
Nakanjani yebo, kodwa ama-injection e-Piezo asenokwehla okuthile. Ukukhiqiza kwabo kunezindleko eziphezulu okubenza babe umkhiqizo obizayo, ikakhulukazi ngenxa yobusha bobuchwepheshe uqobo. Okunye okubi ukwethembeka, nakuba abakhiqizi basebenza kukho.
Izijovo ze-Piezo sezivele zingokoqobo kwamanye amabhulokhi edizili futhi seziqala ukubonakala kumabhulokhi kaphethiloli. Ngokuqinisekile zizophawula ukuba khona kwazo njalo esikhathini esizayo esiseduze, okuzokwenza izinjini ezivuthayo zangaphakathi zibe imishini esebenza kahle futhi ehlakaniphile.
Kule vidiyo ungabona inqubo yokusebenza komjovo we-Piezo:
Lapha singabona i-Piezo injector ebhentshini lokuhlola ngengcindezi engu-2000Bar:
Uyithandile le ndatshana ye-Autopedia? Sishiyele imibono yakho lapha nasezinkundleni zokuxhumana futhi usithumelele zona iziphakamiso zakho zezindikimba!