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Kei te hangaia te miihini Harley-Davidson Revolution Max 1250 i te wheketere o te kamupene hiko Pilgrim Road i Wisconsin. Ko te rahi o te miihini V-Twin he 1250 cc. cm, ko te whānui me te whiu he 4.13 inihi (105 mm) x 2.83 inihi (72 mm) ā, ka taea e ia te whakaputa i te 150 hōiho me te 94 lb-ft o te taipana. Ko te taipana mōrahi he 9500, ā, ko te ōwehenga kōpeketanga he 13:1.
I roto i tōna hītori, kua whakamahia e Harley-Davidson ngā whanaketanga hangarau, me te whakaute i te taonga tuku iho o tōna waitohu, hei whakarato i te mahi tūturu mō ngā kaieke tūturu. Ko tētahi o ngā whakatutukitanga hoahoa hou a Harley ko te miihini Revolution Max 1250, he miihini V-twin hou kua whakamatao-wai e whakamahia ana i roto i ngā tauira Pan America 1250 me Pan America 1250 Special.
He mea hanga mō te tere me te ātaahua, he whānui te awhi mana o te miihini Revolution Max 1250 hei whakanui i te mana whero. Kua whakatikatikahia te miihini V-Twin kia whakarato i ngā āhuatanga mana tino pai mō ngā tauira Pan America 1250, me te aro nui ki te tuku taipana iti-mutunga me te whakahaere tere iti-mutunga mō te eke i waho o te rori.
Ko te arotahi ki te mahi me te whakaiti i te taumaha ka akiaki i te hoahoanga o te waka me te miihini, te whiriwhiri rauemi me te arotau kaha o te hoahoa wāhanga. Hei whakaiti i te taumaha katoa o te motopaika, kua whakauruhia te miihini ki roto i te tauira Pan Am hei wāhanga anga matua. Mā te whakamahinga o ngā rauemi mama ka āwhina i te whakatutuki i te ōwehenga mana-ki-taumaha tino pai.
I hangaia te mīhini Revolution Max 1250 ki te Harley-Davidson Pilgrim Road Powertrain Operations i Wisconsin. Ko te rahi o te V-Twin he 1250 cc. cm, ko te whānui me te whiu he 4.13 inihi (105 mm) x 2.83 inihi (72 mm) ā, ka taea e ia te whakaputa i te 150 hōiho me te 94 lb-ft o te taipana. Ko te taipana mōrahi he 9500, ā, ko te ōwehenga kōpeketanga he 13:1.
Mā te hoahoa o te miihini V-Twin ka whaiti te āhua o te tuku, ka whakawhāiti i te taumaha hei whakapai ake i te taurite me te whakahaere, ā, ka nui te wāhi mo ngā waewae o te kaieke. Mā te koki-V 60-tohu o ngā rango ka noho kiato te miihini, me te whakarato hoki i te wāhi mo ngā tinana whakatere rua e heke ana ki raro i waenga i ngā rango hei whakanui ake i te rere o te hau me te whakapai ake i te mahi.
Mā te whakaiti i te taumaha o te tuku ka āwhina i te whakaiti i te taumaha o te motopaika, ka pai ake te whai huatanga, te whakaterenga, te whakahaere me te aukati. Mā te whakamahi i te Finite Element Analysis (FEA) me ngā tikanga arotau hoahoa matatau i te wāhanga hoahoa miihini ka whakaitihia te papatipu rauemi i roto i ngā wāhanga whakarewa me ngā wāhanga whakarewa. Hei tauira, i te whanaketanga o te hoahoa, i tangohia ngā rauemi mai i te taputapu tīmatanga me te taputapu taraiwa camshaft hei whakaiti i te taumaha o ēnei wāhanga. Ko te rango konumohe kotahi-wahi me te whakakikoruatanga hiko o te mata nickel-silicon carbide he āhuatanga hoahoa mama, me te taupoki toka konupora koranu mama, te taupoki camshaft me te taupoki matua.
E ai ki te Kaiwhakahaere Matua o Harley-Davidson, a Alex Bozmosky, ko te pūnaha taraiwa o te Revolution Max 1250 he wāhanga hanganga o te anga o te motopaika. Nō reira, e rua ngā mahi a te mīhini – hei whakarato i te mana me te wāhanga hanganga o te anga. Mā te tango i te anga tuku iho ka tino whakaiti i te taumaha o te motopaika, ā, ka whakarato i te anga tino kaha. Ko ngā mema anga o mua, ngā mema anga waenga me te anga o muri ka herea tika ki te tuku. Ka tutuki i ngā kaieke te mahi tino pai mā te penapena taumaha nui, te anga pakari me te pokapū papatipu.
I roto i te miihini V-Twin, ko te wera te hoariri o te pakari me te whakamarie o te kaieke, nō reira ka mau tonu te pāmahana miihini me te hinu e te miihini wai-whakamatao kia pumau, kia whakahaeretia hoki, kia rite tonu ai te mahi. Nā te mea he iti ake te whānui me te kōpeke o ngā wāhanga whakarewa, ka taea te whakatutuki i ngā ātete wāhanga kia pakari mā te whakahaere i te pāmahana miihini, ā, ka hua ake he pai ake te mahi tuku.
Hei tāpiritanga, ka taea e te haruru tino pai o te mīhini me te tangi whakahihiri o te putanga hau te kaha ake i te mea ka whakaitihia te haruru o roto o te mīhini e te whakamatao wai. Ka whakamataohia hoki te hinu mīhini ki te wai hei whakarite i te mahi me te roa o te hinu mīhini i roto i ngā āhuatanga kino.
Kua hangaia te papu whakamatao ki roto i ngā peera me ngā hiri mahi-teitei mō te roa o te ora, ā, kua whakauruhia ngā ara whakamatao ki roto i te whakarewanga matatini o te taupoki stator hei whakaiti i te taumaha me te whānui o te tuku.
I roto, e rua ngā pine hurihuri o te Revolution Max 1250 e 30 ngā nekehanga te koki. I whakamahia e Harley-Davidson tōna wheako whānui ki te reihi whakawhiti whenua hei mārama ki te manawataki o te Revolution Max 1250. Ka taea e te raupapatanga nekehanga te whakapai ake i te kukume i roto i ētahi āhuatanga taraiwa i waho o te rori.
Kua tāpirihia ki te porotiti me ngā tokotoko hono he piston konumohe hanga-whakairo me te ōwehenga kōpeketanga o te 13:1, e whakanui ana i te taipana o te mīhini i ngā tere katoa. Mā ngā pūoko kite patuki matatau ka taea tēnei ōwehenga kōpeketanga teitei. Ka hiahiatia e te mīhini te wahie 91 octane mō te mana nui, engari ka oma i runga i te wahie octane iti, ā, ka ārai i ngā pahūtanga nā te hangarau pūoko patuki.
He anga whakarara te raro o te piston, nō reira kāore e hiahiatia he taputapu pēhi mowhiti mō te tāutanga. He paninga waku iti te papa piston, ā, ka whakaitihia e ngā mowhiti piston iti te kukū te waku mō te whakapai ake i te mahi. Kua pania ngā arai mowhiti o runga kia roa ai te mau, ā, ka anga ngā pupuhi hinu whakamatao ki raro o te piston hei āwhina i te whakamarara i te wera o te mura.
Hei tāpiritanga, ka whakamahia e te miihini V-Twin ngā pane rango e whā ngā takirere (e rua ngā whakaurunga me ngā putanga hau e rua) hei whakarato i te wāhi takirere nui rawa atu. Mā tēnei ka whakarite i te taipana iti-mutunga kaha me te whakawhiti maeneene ki te mana tino pai i te mea ka arotauhia te rere o te hau i roto i te ruma mura kia tutuki ai ngā whakaritenga mahi me te nekehanga e hiahiatia ana.
He takirere putanga kua whakakiia ki te konutai hei pai ake te tohatoha wera. Mā te hangarau whakarewa matatau ka tutuki ngā ara hinu iri i roto i te pane, ā, ka whakaitihia te taumaha nā te matotoru iti o te pakitara o te pane.
He mea whakarewa te pane rango mai i te koranu konumohe kaha-teitei 354. Nā te mea he pūwāhi whakapiri anga ngā pane, kua hangaia kia ngāwari i taua pūwāhi whakapiri engari kia pakari i runga i te rūma mura. Ka tutukihia tēnei mā te maimoatanga wera kua whakaritea.
Kei te pane rango anō hoki ngā kamepa whakauru me ngā kamepa whakaputa hau motuhake mō ia rango. Ka whakatairangahia e te hoahoa DOHC te mahi RPM teitei ake mā te whakaiti i te inertia o te tereina takirere, ka hua ake he mana tihi teitei ake. Ka whakaratohia hoki e te hoahoa DOHC te wā takirere taurangi motuhake (VVT) i runga i ngā kāmera whakauru me ngā kamepa whakaputa hau, kua arotauhia mō ngā rango o mua me muri mō te whānuitanga o te mana.
Tīpakohia he kōtaha cam motuhake hei whiwhi i te mahi tino hiahiatia. Ko te pukapuka whīra camshaft taha taraiwa he wāhanga o te sprocket taraiwa, i hangaia hei tango i te camshaft mō te ratonga, mō ngā whakapainga mahi ā muri ake nei, me te kore e tango i te puku camshaft.
Hei kati i te tereina takirere o te Revolution Max 1250, i whakamahia e Harley he whakaoho takirere pine roera me ngā whakatikatika whiu waipēhi. Mā tēnei hoahoa ka noho tonu te takirere me te kaiwhakaoho takirere (pine) i te wā e huri ana te pāmahana o te miihini. Mā ngā whakatikatika whiu waipēhi ka kore e hiahiatia he tiaki mō te tereina takirere, ka penapena i te wā me te moni a ngā rangatira. Mā tēnei hoahoa ka mau tonu te pēhanga ki te kakau takirere, ka hua ake he kōtaha camshaft kaha ake mō te whakapai ake i te mahi.
Ka āwhinahia te rere o te hau i roto i te mīhini e ngā pūwero hau e rua e whakanohoia ana i waenganui i ngā rango, ā, kua whakanohoia kia iti ai te aueue me te ātete o te rere o te hau. Ka taea te whakarite i te tuku wahie takitahi mō ia rango, kia pai ake ai te ōhanga me te whānuitanga o te hau. Mā te wāhi pokapū o te tinana pūwero ka taea e te pouaka hau 11-rita te noho pai ki runga ake i te mīhini. Ka whakaritea te kaha o te rūma hau mō te mahi a te mīhini.
Mā te āhua o te pouaka hau ka taea te whakarite i te tere o ia tinana whakatere, mā te whakamahi i te ātete hei akiaki i te nui o te hau ki roto i te rūma mura, ka piki ake te putanga mana. He mea hanga te pouaka hau mai i te nairona kua whakakiia ki te karāhe me ngā tara o roto hei āwhina i te whakaiti i te haruru me te whakaiti i te haruru whakauru. Ka hurihia e ngā putanga whakauru e anga whakamua ana te haruru whakauru mai i te taraiwa. Mā te whakakore i te haruru whakauru ka taea te whakahaere i te haruru putanga pai rawa atu.
Ka whakapūmauhia te pai o te mahi a te miihini e tētahi pūnaha whakahinuhinu puna maroke pono me tētahi puna hinu kua hangaia ki roto i te whakarewanga o te pouaka miihini. Ka tangohia e ngā papu whakaheke hinu e toru te hinu nui mai i ngā rūma miihini e toru (te pouaka miihini, te rūma stator me te rūma mamau). Ka whiwhi ngā kaieke i te mahi pai rawa atu nā te mea ka whakaitihia te ngaronga mana pararutiki nā te mea kāore ngā wāhanga o roto o te miihini e huri i roto i te hinu nui.
Ka ārai te matapihi o mua i te whakakī i te hinu miihini i te mamau, ka whakaiti i te tuku hinu. Mā te whāngai hinu mā waenganui o te porowhita ki ngā peera matua me ngā peera hononga, ka whakaratohia e tēnei hoahoa he pēhanga hinu iti (60-70 psi), ka whakaiti i te ngaronga mana parataiao i te rpm teitei.
Ko te whakamarie o te Pan America 1250 e whakapūmautia ana e te taurite ā-roto e whakakore ana i te nuinga o te wiri o te miihini, e whakapai ake ana i te whakamarie o te kaieke me te whakaroa i te roa o te waka. Ko te taurite matua, kei roto i te pouaka crank, e whakahaere ana i ngā wiri matua i hangaia e te crankpin, te piston me te tokotoko hono, tae atu ki te "rolling clutch" te kore taurite maui-matau rānei i puta mai i te rango kore e tika te tūnga. He taurite āwhina i roto i te pane rango o mua i waenganui i ngā camshafts hei tāpiri atu ki te taurite matua hei whakaiti ake i te wiri.
Hei whakamutunga, he pūnaha taraiwa kotahi te Revolution Max, arā, kei roto i te tinana kotahi te miihini me te pouaka miihini ono-tere. E waru ngā kōpae waku o te mamau kua hangaia hei whakarato i te hononga pumau ki te taipana mōrahi puta noa i te roanga o te ora o te mamau. Mā ngā puna whakaōrite i roto i te puku whakamutunga ka whakangawari i ngā nekehanga taipana o te porowhita i mua i te taenga atu ki te pouaka miihini, kia rite ai te tuku taipana.
I te nuinga, he tauira pai te Revolution Max 1250 V-Twin e whakaatu ana i te hiahia nui o ngā motopaika Harley-Davidson.
Ko ngā kaitautoko miihini o tēnei wiki ko PennGrade Motor Oil, Elring-Das Original me Scat Crankshafts. Mena he miihini tāu e hiahia ana koe ki te whakanui i roto i tēnei raupapa, tēnā īmēra atu ki te ētita Engine Builder, ki a Greg Jones [email protected]
Wā tuku: Whiringa-ā-rangi 15-2022