Injini zikadizili zidlale indima eguquguqukayo emikhakheni yezimboni nezokuthutha kusukela zathuthukiswa uRudolf Diesel ngasekupheleni kwekhulu le-19. Ekuqaleni zaziklanyelwe ukuthuthukisa ukusebenza kahle kukaphethiloli namandla akhiqizwayo, lezi njini seziguquke zaba amayunithi amandla abalulekile aqhuba imishini, izimoto, nezinhlelo zokukhiqiza amandla emhlabeni wonke. Emashumini eminyaka, izinto ezintsha ezifana nokujova kukaphethiloli ohlelweni oluvamile (common rail fuel injection) kanye ne-turbocharging ziye zathuthukisa kakhulu ukusebenza kwezinjini zikadizili, zabenza zingenakwehlukaniswa emikhakheni edinga imithombo yamandla eqinile nethembekile.

Amandla enjini kadizili okukhiqiza i-torque enkulu kuma-RPM aphansi uma iqhathaniswa nezinjini zikaphethiloli kwenze yaba yintandokazi ezinhlelweni ezisindayo. Izinkampani ezifana nenkampani yezinjini i-Cummins bezingabaphayona ekuthuthukiseni ubuchwepheshe obuthuthukisiwe buka-diesel obusekela ukukhula kwezimboni. Njengoba izimboni zidinga kakhulu izinjini ezisebenza kahle futhi ezihlala njalo, ubuchwepheshe buka-diesel buyaqhubeka nokwenza izinto ezintsha ngenkathi kugcinwa idumela lokuhlala isikhathi eside nokuba namandla. I-Wenfei Machinery, umdlali obalulekile ekuhlinzekeni ngemishini nezinjini, isebenzisa lezi zintuthuko zezinjini zikadizili ukunikeza izixazululo eziqondene namakhasimende ezimboni ezahlukene.

Enye yezinzuzo eziyinhloko zezinjini zikadizili ukusebenza kwazo okunamandla. Izinjini zikadizili zakhiqiza i-torque ephezulu kunezinjini zikagasoline ezifanayo, okuhumusha ekubeni nekhono elingcono kwemishini nezimoto ezisindayo. Lokhu kuzenza zilungele imishini yokwakha, amaloli, izinjini zikagesi, kanye nezicelo zasolwandle. Izici ze-torque ziqinisekisa nokuba nekhono elingcono lokudonsa nokuthwala, okubalulekile emikhakheni eminingi yezimboni.

Izinjini zikadizili nazo zisebenzisa uphethiloli kangcono ngenxa yezinga lazo eliphezulu lokucindezela kanye nenqubo yokushisa engadli uphethiloli omningi. Lokhu kusebenza kahle kubangela ukuthi uhambe ibanga elide futhi usebenzise uphethiloli omncane, okusiza ukunciphisa izindleko zokusebenza ngokuhamba kwesikhathi. Uma kuqhathaniswa nezinjini zikaphethiloli, izinjini zikadizili ziguqula ingxenye enkulu yamandla kaphethiloli ibe umsebenzi womshini, okwenza zibe ukukhetha okonga kakhulu kumabhizinisi agxile ekunciphiseni izindleko zikaphethiloli.

Ukuqina nokuphila isikhathi eside kungenye yezinzuzo ezibalulekile. Izinjini zikadizili zakhelwe ukubekezelela ukucindezela okuphezulu nokusebenza ngaphansi kwezimo ezinzima, okujwayele ukwelula impilo yazo yokusebenza uma kuqhathaniswa nezinjini zikaphethiloli. Ukwakhiwa kwazo okuqinile kusho ukuthi azivamisile ukuba nezinkinga futhi azidingi ukulungiswa kaningi. Lokhu kuqina nakho kunomthelela ekubeni nenzuzo ephezulu lapho zithengiswa kabusha emakethe yesibili, okuyinto ebalulekile kumabhizinisi afuna ukuthuthukisa izindleko zokusebenza kwempahla.

Ngaphezu kwalokho, ukuthuthukiswa kobuchwepheshe obufana nohlelo lokujova uwoyela oluvamile (common rail fuel injection system) kuthuthukise ukusebenza kahle nokukhishwa kukadizili, okwengeza ukukhanga kwawo ezinhlelweni zesimanje. Ukuhlanganiswa kwezilawuli zikagesi ezithuthukisiwe kuqinisekisa ukulethwa okunembayo kukadizili nokushiswa, kunciphisa umsindo kanye nokungcola komoya wokukhipha.

Ngaphandle kwezinzuzo zabo, izinjini zikadizili zinezinselelo okufanele izinkampani zizicabangele. Enye inkinga yokusebenza ukubuthelela kukadizili ongashile, isimo lapho uphethiloli ongashile ubuthelela khona ohlelweni lokukhipha umusi lapho injini ingalayishwanga ngokwanele noma ihamba kancane kakhulu. Ukubuthelela kukadizili kungaholela ekwehleni kokusebenza kahle kweinjini nokwanda kwezidingo zokugcinwa uma kungaphathwa kahle.

Esinye isici okufanele sicatshangelwe yizindleko nokuguquguquka kwentengo kadizili emakethe. Amanani kadizili angashintsha kakhulu ngenxa yezinto zezombangazwe kanye nokushintshana kokufunwa nokunikezwa, okungakhuphula izindleko zokusebenza. Ngenkathi izinjini zikadizili zivame ukusebenzisa uphethiloli kahle, intengo ephezulu kadizili uma iqhathaniswa nogesi noma okunye uphethiloli kungathinta ukonga kwezindleko ezimakethe ezithile.

Ukubaleka kukadizili kuyinto engavamile kodwa ebucayi lapho injini ikhuphuka ngaphandle kokulawulwa ngenxa yomthombo wangaphandle kaphethiloli noma ukungasebenzi kahle. Le nkinga idinga ukuqapha ngokucophelela injini kanye nezinqubo zokuphepha ukuze kuvinjelwe izingozi, ikakhulukazi ezindaweni zezimboni.

Ngaphezu kwalokho, izinjini zikadizili ngokuvamile zinezindleko zokuqala eziphakeme kunezinjini zikaphethroli, okungaba isithiyo kubasebenzisi abathile. Yize izinzuzo zazo zesikhathi eside zivame ukulungisa lokhu kutshalwa kwezimali, ukuchithwa kwezimali kokuqala kuhlala kuyinto ebalulekile kubathengi abanomkhawulo wesabelomali.

I-Wenfei Machinery igxile ekuhlinzekeni ngezixazululo ezisezingeni eliphezulu zemishini kadizili eyenziwe ngokwezidingo ezahlukahlukene zezimboni. Ngokugxila kakhulu ekuthembekeni, ukusebenza, kanye nentuthuko yezobuchwepheshe, i-Wenfei inikeza imikhiqizo ehlanganisa izinto ezintsha zemishini kadizili yesimanje njengezinhlelo ze-common rail kanye nemiklamo yokushisa esebenza kahle. Umugqa wabo omkhulu wemikhiqizo uhlanganisa imishini efanelekayo kuma-gensets, imishini yokwakha, nezimoto ezisindayo, ukuqinisekisa ukuthi amakhasimende athola izixazululo zamandla ezithuthukisiwe.

Ngokubambisana nabakhiqizi abahamba phambili kanye nokusebenzisa ubuchwepheshe bangaphakathi, iWenfei Machinery iqinisekisa hhayi kuphela amanani ancintisanayo kodwa futhi nenkonzo ephelele ngemuva kokuthengisa kanye nokwesekwa kwezobuchwepheshe. Ukuzibophezela kwabo ekuqiniseni kanye nokwaneliseka kwamakhasimende kubabeka njengomphakeli okhethwayo emakethe yezinjini zikadizili. Ukuze uthole okwengeziwe mayelana nokunikezwa kwabo kwezinjini zikadizili, vakashela ku- Injini yamandla kadizili ikhasi.

Amaloli kadizili ahlala eyisisekelo sobuchwepheshe ezimbonini ezidinga amaloli aqinile, asebenza kahle futhi anamandla. Izinzuzo zawo ekusebenzeni, ukonga uphethiloli, kanye nokuphila isikhathi eside ngokuvamile kudlula izinselelo ezifana nokugcwala kukadizili, ukushintshashintsha kwentengo kaphethiloli, kanye nokutshalwa kwezimali okuphakeme ekuqaleni. Ezinhlelweni ezidinga amandla amakhulu nokusebenza njalo—kusukela emishinini yokwakha kuya ekukhiqizeni ugesi—amaloli kadizili avame ukuba yisixazululo esifanele kakhulu.

Izinkampani ezifana neWenfei Machinery zidlala indima ebalulekile ekuhlinzekeni izixazululo zezinjini zedizili ezikhulisa lezi zinzuzo ngenkathi zixazulula izinkinga zokusebenza ngobuchwepheshe obuthuthukisiwe nokusekelwa kochwepheshe. Lapho ukhetha injini, amabhizinisi kufanele acwaninge izinzuzo nezingalungi ngokucophelela, kucatshangelwa izinto ezifana nezidingo zokusebenza, ukutholakala kukaphethiloli, kanye nezindleko zokuba nazo sezizonke.

Ngemininingwane eningiliziwe ngezinjini zedizili nemikhiqizo ehlobene, ungase futhi uhlole okunikezwa yiWenfei Machinery kuInkampani, Injini iloli, kanye Izingxenye zemishini yokwakha amakhasi ukuze uthole imininingwane ephelele yomkhiqizo nezinketho zesevisi.