Intshayelelo yenjini yeCummins:

INkampani yeNjini yaseCummins yasekwa eColumbus, eIndiana, ngo-1919 nguWilliam Glanton Irwin kunye noClessie Cummins, umkhandi wendawo.Yayigxile ekuphuhliseni injini yedizili eyaqanjwa kwiminyaka engama-20 ngaphambili, kodwa phezu kwazo nje iimvavanyo ezininzi zonyamezelo ezipapashiweyo, akuzange kube ngowe-1933 apho iModel H yabo, eyayisetyenziswa kwizitshixo ezincinci zikaloliwe, yaphumelela.Iinjini zeCummins N Series zaba yinkokeli yoshishino kwi-post-World War II boom yokwakhiwa kwendlela eUnited States, ngaphezu kwesiqingatha semarike yelori enzima ukusuka ngo-1952 ukuya ku-1959. Kwi-1960s, inkampani yavula iplanti yendibano eShotts, EScotland (yavalwa ngo-1996).Ngo-2013, iCummins yayinemisebenzi kumazwe nemimandla eyi-197.

IYunithi yoShishino lwe-Cummins iquka inkxaso ye-Aftermarket, iMid-Range, i-Heavy-Duty, kunye ne-High-Power-Engines.I-Cummins ivelisa kwaye ithengise umgca opheleleyo we-diesel kunye neenjini zegesi zendalo ezisebenza kuhola wendlela kunye nokusetyenziswa kohola wendlela.Iimarike zayo ziquka iilori ezinzima kunye neziphakathi, ibhasi, isithuthi sokuzonwabisa (i-RV), i-automotive light-duty kunye nenani lokusetyenziswa kwezoshishino kuquka, ukwakhiwa, imigodi, i-marine, i-oyile kunye negesi, umzila kaloliwe kunye nezixhobo zomkhosi.

Kuluntu ngokubanzi, imveliso yeCummins ebonakalayo inokuba yi-5.9-litre in-line six-cylinder injini esetyenziswa kwi-Dodge Ram light duty pickups eqala ngo-1988.5.Ngo-2007.5, uguqulelo lwe-6.7-litre ye-Cummins ethe ngqo kwi-injini ezintandathu iye yakhethwa kwi-RAM.Ngo-2008, uCummins wayebizwa ngokuba ngummangalelwa kwisuti yesenzo seklasi enxulumene ne-1998-2001 imodeli yonyaka iilori zeChrysler Dodge Ram, imodeli ye-2500 okanye i-3500, ekuqaleni yayixhotyiswe nge-Cummins ISB 5.9 injini ye-diesel eyakhiwe kusetyenziswa ipateni ye-53 Block.Ityala lichongiwe, kodwa abanye abanini beChrysler abafanelekileyo banokufumana i-500 yeedola zokulungiswa kwebhloko, ekutyholwa ukuba iyaqhekeka kwaye idale ukuvuza okupholisayo.

ICummins ineziko lobuchwephesha eDarlington, eNgilani, apho iphuhlisa iimveliso zaseYurophu, kuMbindi Mpuma, kunye neemarike zaseAsia.

Inqaku leNjini

Uyilo olutsha lwenkqubo yokulawula isantya sombane seCummins injini yedizili inezi mpawu zilandelayo:

1. Iivalve ezi-4 nge-cylinder nganye, i-spring ngokwahlukileyo.Amanzi;exhaust gas turbo, isibetho esine, amanzi angenayo ohlobo lomoya obandayo, iinkqubo zokutofa amafutha ngokuthe ngqo.

2. Inkqubo yokutofa kwe-PT kunye ne-EFC ye-electronic governor ephezulu, i-injini ye-diesel isantya esilungelelanisiweyo singasetwa phakathi kwe-0 ukuya kwi-5% (isantya esiqhubekayo), esinokuqonda ukulawula ukusebenza okude kunye nokulula ukuqaphela ulawulo oluzenzekelayo, inkqubo ye-torque synchronous excitation inokwenza i-injini ngokukhawuleza iphinda ibuyise isantya sokujikeleza phantsi kokwanda komthwalo ngequbuliso.

3. Isifudumezi sombane kwi-injini yokungenisa ngeendlela ezininzi sivumela injini ekhawulezayo/ethembekileyo ukuba iqale phantsi kobushushu obuphantsi kwaye inokunciphisa ukukhutshwa kwerhasi yegreenhouse.Ukufezekisa imigangatho yokukhupha echazwe ngurhulumente welizwe.

4. Inkqubo yokutshisa yaphuculwa ngokusebenzisa ubuchwepheshe obuphezulu, ukunciphisa kakhulu ukusetyenziswa kwamafutha, ukuthembeka okuphezulu, akukho xesha lokulungiswa ngaphezu kweeyure ze-15000, inqanaba eliphambili kushishino; Ukusetyenziswa kwe-fuel ephantsi, ukusetyenziswa kwexabiso eliphantsi, ukusebenza okuphezulu kunye nokhuseleko.

5. Ukusebenza kakuhle kokuqala kwiqondo lokushisa eliphantsi.