Nokuba ungumakhi we-injini ochwepheshile, umkhandi okanye umenzi wemoto, okanye umntu othanda iinjini, iimoto zomdyarho kunye neemoto ezikhawulezayo, umakhi we-injini unento yakho. Iimagazini zethu zoshicilelo zibonelela ngeenkcukacha zobugcisa kuyo yonke into odinga ukuyazi malunga neshishini leenjini kunye neemarike zalo ezahlukeneyo, ngelixa ukhetho lwencwadana yethu lukugcina unolwazi ngeendaba zamva nje kunye neemveliso, ulwazi lobugcisa kunye nokusebenza kweshishini. Nangona kunjalo, unokufumana konke oku kuphela ngokubhalisela. Bhalisa ngoku ukuze ufumane ushicilelo lwenyanga kunye/okanye ushicilelo lwedijithali lweMagazini yabakhi beNjini, kunye nencwadana yethu yeVeki ye-Engine Builders, i-Weekly Engine Newsletter okanye i-Weekly Diesel Newsletter ngqo kwi-inbox yakho. Uya kugqunywa ngamandla ehashe kungekudala!
Nokuba ungumakhi we-injini ochwepheshile, umkhandi okanye umenzi wemoto, okanye umntu othanda iinjini, iimoto zomdyarho kunye neemoto ezikhawulezayo, umakhi we-injini unento yakho. Iimagazini zethu zoshicilelo zibonelela ngeenkcukacha zobugcisa kuyo yonke into odinga ukuyazi malunga neshishini leenjini kunye neemarike zalo ezahlukeneyo, ngelixa ukhetho lwencwadana yethu lukugcina unolwazi ngeendaba zamva nje kunye neemveliso, ulwazi lobugcisa kunye nokusebenza kweshishini. Nangona kunjalo, unokufumana konke oku kuphela ngokubhalisela. Bhalisa ngoku ukuze ufumane ushicilelo lwenyanga kunye/okanye lwe-elektroniki lweMagazini yabakhi beNjini, kunye nencwadana yethu yeVeki yabakhi beeNjini, iNcwadana yeVeki yeeNjini okanye iNdaba yeeNdaba zeDizili yeVeki, ngqo kwibhokisi yakho. Uya kugqunywa ngamandla ehashe kungekudala!
I-injini ye-Harley-Davidson Revolution Max 1250 idityaniswe kwishishini lenkampani yePilgrim Road eWisconsin. I-V-Twin ine-displacement ye-1250 cc. cm, wazala kunye ne-4.13 intshi (105 mm) x 2.83 intshi (72 mm) kwaye iyakwazi 150 horsepower kunye 94 lb-ft torque. Ubuninzi be-torque yi-9500 kunye ne-compression ratio yi-13: 1.
Kuyo yonke imbali yayo, u-Harley-Davidson uye wasebenzisa uphuhliso lwezobuchwepheshe, ngokuhlonipha ifa lemveli ye-brand yayo, ukubonelela ngentsebenzo yangempela kubakhweli bokwenene. Enye yempumelelo yoyilo lwamva nje lukaHarley yi-Revolution Max 1250 injini, i-V-twin entsha-entsha yolwelo esetyenziswa kwiPan America 1250 kunye nePan America 1250 iimodeli ezikhethekileyo.
Yenzelwe ukukhalipha kunye nokubhenela, i-injini yeRevolution Max 1250 inegunya elibanzi lokomeleza amandla abomvu. I-injini ye-V-Twin ilungelelaniswe ngokukodwa ukubonelela ngeempawu zamandla ezifanelekileyo kwiimodeli ze-Pan America 1250, ngogxininiso ekuhanjisweni kwe-torque ephantsi kunye nokulawulwa kwe-throttle ephantsi yokukhwela ngaphandle kwendlela.
Ugxininiso ekusebenzeni kunye nokunciphisa ubunzima kuqhuba isithuthi kunye noyilo lwe-injini, ukhetho lwezinto eziphathekayo kunye nokulungiswa okusebenzayo koyilo lwamacandelo. Ukunciphisa ubunzima obupheleleyo besithuthuthu, i-injini idityaniswe kwimodeli yePan Am njengeyona nxalenye iphambili ye-chassis. Ukusetyenziswa kwezinto ezilula kunceda ukufezekisa umlinganiselo ofanelekileyo wobunzima bobunzima.
I-injini yeRevolution Max 1250 idityaniswe kwi-Harley-Davidson Pilgrim Road Powertrain Operations eWisconsin. I-V-Twin ine-displacement ye-1250 cc. cm, wazala kunye ne-4.13 intshi (105 mm) x 2.83 intshi (72 mm) kwaye iyakwazi 150 horsepower kunye 94 lb-ft torque. Ubuninzi be-torque yi-9500 kunye ne-compression ratio yi-13: 1.
Uyilo lwe-injini ye-V-Twin lubonelela ngeprofayili yothumelo emxinwa, igxininisa ubunzima bokulungelelana kunye nokuphatha okuphuculweyo, kwaye ibonelela umkhweli ngegumbi elaneleyo lomlenze. I-60-degree V-engile yeesilinda igcina i-injini ibambene ngelixa ibonelela ngesithuba semizimba ye-throttle ephantsi phakathi kweesilinda ukwandisa ukuhamba komoya kunye nokuphucula ukusebenza.
Ukunciphisa ubunzima bokudluliselwa kunceda ukunciphisa ubunzima besithuthuthu, okuphucula ukusebenza kakuhle, ukukhawuleza, ukuphatha kunye nokunyathela. Ukusetyenziswa kwe-Finite Element Analysis (FEA) kunye nobuchule obuphezulu bokuyila kwisigaba soyilo lwe-injini kunciphisa ubunzima bezinto eziphathekayo kwiindawo ezityhidiweyo kunye nezibunjiweyo. Ngokomzekelo, njengoko uyilo luqhubela phambili, izinto zasuswa kwi-starter gear kunye ne-camshaft drive gear ukunciphisa ubunzima bala macandelo. Isilinda esinye se-aluminium esine-nickel-silicon carbide surface electroplating yinkalo yoyilo olukhaphukhaphu, kunye nekhava ye-magnesium alloy rocker ekhaphukhaphu, ikhava yecamshaft kunye nesigqubuthelo esiphambili.
Ngokutsho kweNjineli eyiNtloko ye-Harley-Davidson u-Alex Bozmosky, i-Revolution Max 1250′s drivetrain licandelo lesakhiwo se-chassis yesithuthuthu. Ngoko ke, i-injini inemisebenzi emibini - ukubonelela ngamandla kwaye njengento yokwakheka kwe-chassis. Ukupheliswa kwesakhelo semveli kunciphisa kakhulu ubunzima besithuthuthu kwaye kunika i-chassis enamandla kakhulu. Amalungu esakhelo sangaphambili, amalungu esakhelo esiphakathi kunye nesakhelo esingasemva sibotshwe ngqo kuthumelo. Abakhweli bafezekisa ukusebenza kakuhle ngogcino lobunzima obubalulekileyo, i-chassis eqinile kunye nokubekwa kwindawo enkulu.
Kwi-injini ye-V-Twin, ubushushu lutshaba lokuzinza kunye nokuthuthuzela umkhweli, ngoko ke i-injini epholileyo yamanzi igcina i-injini ezinzileyo nelawulwayo kunye nobushushu be-oyile ukwenzela ukusebenza okufanayo. Ngenxa yokuba iinxalenye zentsimbi zanda kwaye zikhontraktha ngaphantsi, ukunyamezelana okuqinileyo kunokufezekiswa ngokulawula ubushushu be-injini, okukhokelela ekusebenzeni okuphuculweyo kokuhanjiswa.
Ukongeza, isandi esigqibeleleyo se-injini kunye nenqaku lokukhupha elimnandi linokulawula njengoko ingxolo evela kwimithombo yangaphakathi ye-injini icuthwa kukupholisa ulwelo. I-oyile ye-injini kwakhona ulwelo-ipholile ukuqinisekisa ukusebenza kunye nokuqina kwe-oyile ye-injini kwiimeko ezinzima.
Impompo yokupholisa yakhelwe kwiibheringi zokusebenza eziphezulu kunye nezitywina zobomi obude, kwaye iipaseji zokupholisa zidityaniswe kwi-complex casting ye-stator cover ukunciphisa ubunzima bokuhanjiswa kunye nobubanzi.
Ngaphakathi, iRevolution Max 1250 ineekrankpin ezimbini ezithotywe ngama-30 degrees. UHarley-Davidson usebenzise amava akhe abanzi omdyarho wokunqumla ilizwe ukuze aqonde isingqisho samandla se-Revolution Max 1250′s. ulandelelwano lwesidanga kunokuphucula ukutsaleka kwiimeko ezithile zokuqhuba ngaphandle kwendlela.
Incanyathiselwe kwi-crank kunye neentonga zokudibanisa ziyi-pistons ze-aluminiyam ezibunjiweyo ezinomlinganiselo woxinzelelo we-13: 1, okwandisa i-torque ye-injini kuzo zonke izantya. Abenzi boluvo bokunkqonkqoza abakwinqanaba eliphezulu benza lo mlinganiselo uphezulu woxinzelelo lwenzeke. I-injini iya kufuna i-octane ye-91 ye-octane yamandla aphezulu, kodwa iya kusebenza kwi-octane ephantsi ye-octane kwaye iya kuthintela ukuqhuma ngenxa yobuchwepheshe be-sensor sensor.
Umzantsi wepiston uhlaziywe ngoko ke akukho sixhobo sokucinezela iringi esifunekayo ukuze kufakwe. Isiketi se-piston sine-coating ephantsi ye-friction kunye ne-low tension piston rings zinciphisa ukukhuhlana kokuphucula ukusebenza. Izangqa eziphezulu zentsimbi zi-anodized ukwenzela ukuqina, kwaye iijethi zokupholisa ioli zikhomba ezantsi kwepiston ukunceda ukutshabalalisa ubushushu bokutsha.
Ukongezelela, i-injini ye-V-Twin isebenzisa iintloko ze-valve ezine-cylinder (ezimbini zokungenisa kunye nokukhupha ezimbini) ukubonelela indawo enkulu yevalve enokwenzeka. Oku kuqinisekisa i-torque ephantsi eqinile kunye nokuguqulwa okugudileyo kumandla aphezulu njengoko ukuhamba komoya ngegumbi lokutsha kulungiselelwe ukuhlangabezana nokusebenza okufunekayo kunye neemfuno zokufuduka.
Ivalve yokukhupha egcwele isodiyam ukwenzela ukutshabalalisa ubushushu obungcono. Iindinyana zeoli ezimisiweyo entloko zifezekiswa ngeteknoloji yokuphosa eyinkimbinkimbi, kwaye ubunzima buyancipha ngenxa yobuncinci bodonga lwentloko.
Intloko ye-cylinder iphoswe kumandla aphezulu angama-354 i-aluminium alloy. Ngenxa yokuba iintloko zisebenza njengeendawo zokuncamathisela i-chassis, ziyilelwe ukuba zibe bhetyebhetye kuloo ndawo yokuncamathela kodwa zibe ngqongqo phezu kwegumbi lokutsha. Oku kufezekiswa ngokuyinxenye ngonyango olujoliswe kubushushu.
Intloko ye-cylinder nayo ine-intake ezimeleyo kunye ne-exhaust camshafts kwi-cylinder nganye. Uyilo lwe-DOHC lukhuthaza ukusebenza okuphezulu kwe-RPM ngokunciphisa inertia kaloliwe wevalvu, okukhokelela kumandla aphezulu aphezulu. Uyilo lwe-DOHC lukwabonelela ngokuzimeleyo kwexesha levalve eguquguqukayo (VVT) kwiikham zokuthatha kunye ne-exhaust, ezilungiselelwe iisilinda zangaphambili nezingasemva zombane obanzi.
Khetha iprofayile yekhamera ethile ukuze ufumane owona msebenzi ufunwayo. I-drive side camshaft bearing journal yinxalenye ye-drive sprocket, eyenzelwe ukuvumela ukususwa kwe-camshaft yenkonzo okanye ukuphuculwa komsebenzi wexesha elizayo ngaphandle kokususa i-camshaft drive.
Ukuvala uloliwe wevalve kwiRevolution Max 1250, uHarley usebenzise i-roller pin valve actuation ene-hydraulic lash adjusters. Olu yilo luqinisekisa ukuba ivalve kunye ne-valve actuator (iphini) zihlala zinxibelelana rhoqo njengoko ubushushu be-injini butshintsha. Izilungelelanisi ze-Hydraulic lash zenza uloliwe we-valve-free ukugcinwa, ukonga abanini ixesha kunye nemali. Olu yilo lugcina uxinzelelo oluqhubekayo kwi-valve stem, okukhokelela kwiprofayili ye-camshaft enobudlova ukuze kuphuculwe ukusebenza.
Ukuhamba komoya kwi-injini kuncediswa zii-throttles ezimbini ezisezantsi ezibekwe phakathi kweesilinda kwaye zibekwe ukuze zenze isiphithiphithi esincinci kunye nokumelana nokuhamba komoya. Ukuhanjiswa kwamafutha kungaphuculwa ngokuzimeleyo kwi-cylinder nganye, ukuphucula uqoqosho kunye noluhlu. Indawo esembindini ye-throttle body ivumela ibhokisi yomoya ye-11-litre ukuba ihlale ngokugqibeleleyo ngaphezulu kwe-injini. Umthamo wegumbi lomoya ulungiselelwe ukusebenza kwenjini.
Imilo yebhokisi yomoya ivumela isitashi sesantya esilungelelanisiweyo kumzimba ngamnye we-throttle, kusetyenziswa inertia ukunyanzela ubunzima bomoya ongakumbi kwigumbi lokutsha, ukwandisa ukuphuma kwamandla. Ibhokisi yomoya yenziwe ngenayiloni ezaliswe yiglasi enamaphiko angaphakathi angaphakathi ukunceda ukudambisa isandi kunye nokuthomalalisa ingxolo yokungena. Izibuko zokungena ezijonge phambili ziphambukisa ingxolo yokungena kude nomqhubi. Ukuphelisa ingxolo yokungena kuvumela isandi esigqibeleleyo sokukhupha ukuba silawule.
Ukusebenza kakuhle kwe-injini kuqinisekiswa yinkqubo ethembekileyo ye-sump lubrication eyomileyo enendawo ye-oyile eyakhelwe kwi-crankcase casting. Iimpompo ezintathu zokukhupha i-oyile zikhupha i-oyile eninzi kumagumbi amathathu eenjini (i-crankcase, i-stator chamber kunye ne-clutch chamber). Abakhweli bafumana eyona ntsebenzo ingcono kuba ilahleko yamandla e-parasitic iyancipha ngenxa yokuba izinto zangaphakathi ze-injini akufuneki zijikeleze nge-oyile egqithisileyo.
I-windshield ithintela i-clutch ekutshabhiseni i-oyile ye-injini, nto leyo enokunciphisa ukunikezelwa kwe-oyile. Ngokutyisa i-oyile embindini we-crankshaft ukuya kwiibheringi zentonga eziphambili kunye nokudibanisa, olu yilo lubonelela ngoxinzelelo lwe-oyile ephantsi (i-60-70 psi), enciphisa ukulahlekelwa kwamandla e-parasitic kwi-rpm ephezulu.
Ukuhamba okunethezeka kwePan America 1250 kuqinisekiswa sisilinganisi sangaphakathi esisusa ukungcangcazela kwe-injini, ukuphucula ukukhululeka komkhweli kunye nokwandisa ukuqina kwesithuthi. I-balancer eyintloko, ehlala kwi-crankcase, ilawula ukunyakaza okuphambili okwenziwa yi-crankpin, ipiston kunye nentonga yokudibanisa, kunye "ne-rolling clutch" okanye ukungalingani kwesobunxele okubangelwa yi-cylinder engafanelekanga. I-balancer encedisayo kwintloko ye-cylinder yangaphambili phakathi kwee-camshafts incedisa i-balancer engundoqo ukuqhubela phambili ukunciphisa ukungcangcazela.
Okokugqibela, iRevolution Max sisisistim esidityanisiweyo, okuthetha ukuba injini kunye ne-gearbox enesantya ezintandathu zigcinwe kumzimba omnye. I-clutch ixhotyiswe ngeediski ezisibhozo zokukhuhlana ezenzelwe ukubonelela ngokuzibandakanya rhoqo kwi-torque ephezulu kubo bonke ubomi be-clutch. Ukubuyekeza imithombo kwi-drive yokugqibela egudileyo kwi-crankshaft torque impulses ngaphambi kokuba ifike kwibhokisi yegiya, iqinisekisa ukuhanjiswa kwetorque engaguqukiyo.
Lilonke, iRevolution Max 1250 V-Twin ngumzekelo omhle wokuba kutheni izithuthuthu zeHarley-Davidson zisafunwa ngolo hlobo.
Abaxhasi beenjini kule veki yiPennGrade Motor Oil, Elring-Das Original kunye neScat Crankshafts. Ukuba une-injini ongathanda ukuyiqaqambisa kolu ngcelele, nceda u-imeyilele umhleli womakhi we-injini uGreg Jones [i-imeyile ekhuselweyo]
Ixesha lokuposa: Nov-15-2022