Ma ị bụ ọkachamara n'ịrụ injin, mekaniki ma ọ bụ onye nrụpụta, ma ọ bụ onye na-anụ ọkụ n'obi n'ụgbọala nke hụrụ injin, ụgbọala ịgba ọsọ na ụgbọala ọsọ ọsọ n'anya, Engine Builder nwere ihe maka gị. Magazin mbipụta anyị na-enye nkọwa teknụzụ gbasara ihe niile ịchọrọ ịma gbasara ụlọ ọrụ injin na ahịa dị iche iche ya, ebe nhọrọ akwụkwọ akụkọ anyị na-eme ka ị mara akụkọ na ngwaahịa kachasị ọhụrụ, ozi teknụzụ na arụmọrụ ụlọ ọrụ. Agbanyeghị, ị nwere ike nweta ihe a niile naanị site na ndenye aha. Denye aha ugbu a iji nweta mbipụta kwa ọnwa na/ma ọ bụ mbipụta dijitalụ nke Engine Builders Magazine, yana akwụkwọ akụkọ Engine Builders kwa izu anyị, akwụkwọ akụkọ Engine Weekly ma ọ bụ akwụkwọ akụkọ Diesel kwa izu ozugbo na igbe mbata gị. Ị ga-enweta ike ịnyịnya n'oge adịghị anya!
Ma ị bụ ọkachamara n'ịrụ injin, mekaniki ma ọ bụ onye nrụpụta, ma ọ bụ onye na-anụ ọkụ n'obi n'ụgbọala nke hụrụ injin, ụgbọala ịgba ọsọ na ụgbọala ngwa ngwa n'anya, Engine Builder nwere ihe maka gị. Magazin mbipụta anyị na-enye nkọwa teknụzụ gbasara ihe niile ịchọrọ ịma gbasara ụlọ ọrụ injin na ahịa dị iche iche ya, ebe nhọrọ akwụkwọ akụkọ anyị na-eme ka ị mara akụkọ na ngwaahịa kachasị ọhụrụ, ozi teknụzụ na arụmọrụ ụlọ ọrụ. Agbanyeghị, ị nwere ike nweta ihe a niile naanị site na ndenye aha. Denye aha ugbu a iji nweta mbipụta kwa ọnwa na/ma ọ bụ mbipụta eletrọniki nke Engine Builders Magazine, yana Akwụkwọ akụkọ Weekly Engine Builders anyị, Akwụkwọ akụkọ Weekly Engine ma ọ bụ Weekly Diesel Newsletter, ozugbo na igbe mbata gị. Ị ga-enweta ike ịnyịnya n'oge adịghị anya!
A na-agbakọta injin Harley-Davidson Revolution Max 1250 n'ụlọ ọrụ powertrain nke Pilgrim Road's plant dị na Wisconsin. V-Twin nwere mgbanwe nke 1250 cc. cm, bore na stroke 4.13 inches (105 mm) x 2.83 inch (72 mm) ma nwee ike ibu 150 horsepower na 94 lb-ft nke torque. Torque kachasị bụ 9500 na oke mkpakọ bụ 13:1.
Kemgbe ụwa ya, Harley-Davidson ejirila mmepe teknụzụ, na-asọpụrụ ihe nketa nke akara ya, iji nye ezigbo arụmọrụ maka ndị na-agba ịnyịnya n'ezie. Otu n'ime ihe ndị Harley rụpụtara n'oge na-adịbeghị anya bụ injin Revolution Max 1250, injin ejima V-ejima ọhụrụ nke ejiri mmiri oyi mee nke ejiri mee ihe na ụdị Pan America 1250 na Pan America 1250 Special.
E mepụtara injin Revolution Max 1250 maka ịdị ngwa na ịma mma, o nwere eriri ike sara mbara maka mmụba ike akara uhie. E megharịrị injin V-Twin kpọmkwem iji nye njirimara ike zuru oke maka ụdị Pan America 1250, yana itinye uche na nnyefe ike dị ala na njikwa throttle dị ala maka ịnya ụgbọ ala n'okporo ụzọ.
Ilekwasị anya n'ọrụ na mbelata ibu na-akwalite nhazi ụgbọ ala na injin, nhọrọ ihe na imeziwanye nhazi akụkụ. Iji belata ibu dum nke ọgba tum tum ahụ, a na-etinye injin ahụ n'ime ihe nlereanya Pan Am dị ka akụkụ chassis bụ isi. Ojiji nke ihe ndị dị fechaa na-enyere aka nweta oke ike-na-arọ.
A na-agbakọta injin Revolution Max 1250 na Harley-Davidson Pilgrim Road Powertrain Operations na Wisconsin. V-Twin nwere mgbanwe nke 1250 cc. cm, bore na stroke 4.13 inches (105 mm) x 2.83 inch (72 mm) ma nwee ike ibu 150 horsepower na 94 lb-ft nke torque. Torque kachasị bụ 9500 na oke mkpakọ bụ 13:1.
Nhazi injin V-Twin na-enye profaịlụ nnyefe dị warara, na-etinye oke ibu maka nhazi na njikwa ka mma, ma na-enye onye na-agba ya ohere zuru oke. Akụkụ V-degree 60 nke silinda ahụ na-eme ka injin ahụ dị obere ebe ọ na-enye ohere maka akụkụ throttle abụọ dị n'etiti silinda iji mee ka ikuku na-aga nke ọma ma melite arụmọrụ.
Mbelata ibu nke nnyefe ahụ na-enyere aka belata ibu nke ọgba tum tum, nke na-eme ka arụmọrụ, ọsọ ọsọ, njikwa na braking ka mma. Ojiji nke Finite Element Analysis (FEA) na usoro nhazi imewe dị elu na usoro nhazi injin na-ebelata oke ihe dị na ihe nkedo na akụkụ a kpụrụ akpụ. Dịka ọmụmaatụ, ka imewe ahụ na-aga n'ihu, ewepụrụ ihe ahụ na gia mmalite na gia camshaft iji belata ibu nke ihe ndị a. Silinda aluminom otu akụkụ nwere electroplating elu nickel-silicon carbide bụ atụmatụ imewe dị mfe, yana mkpuchi rocker magnesium alloy dị fechaa, mkpuchi camshaft na mkpuchi isi.
Dịka Harley-Davidson, onye injinia ukwu Alex Bozmosky si kwuo, usoro ụgbọala Revolution Max 1250 bụ akụkụ nhazi nke chassis ọgba tum tum ahụ. Ya mere, injin ahụ nwere ọrụ abụọ - inye ike na dịka ihe nhazi nke chassis ahụ. Iwepụ fremu ọdịnala ahụ na-ebelata ibu nke ọgba tum tum ahụ nke ukwuu ma na-enye chassis siri ike nke ukwuu. A na-ejikọta akụkụ fremu ihu, akụkụ etiti na fremu azụ ozugbo na nnyefe ahụ. Ndị na-agba ịnyịnya na-enweta arụmọrụ kachasị mma site na ịchekwa ibu dị ukwuu, chassis siri ike na etiti oke.
N'ime injin V-Twin, okpomọkụ bụ ihe na-akpata ntachi obi na nkasi obi nke onye na-agba ya, yabụ injin mmiri oyi na-eme ka injin na okpomọkụ mmanụ kwụsiri ike ma na-achịkwa maka arụmọrụ na-aga n'ihu. Ebe ọ bụ na ihe ndị mejupụtara ígwè na-agbasa ma na-ebelata obere, enwere ike inweta nnabata akụkụ siri ike site na ijikwa okpomọkụ injin, nke na-eme ka arụmọrụ nnyefe ka mma.
Tinyere nke ahụ, ụda injin zuru oke na ụda ikuku na-atọ ụtọ nwere ike ịchịkwa ka mkpọtụ sitere na isi mmalite injin ahụ na-ebelata site na mmiri oyi. A na-ejikwa mmanụ injin ahụ eme ka ọ dị jụụ iji hụ na mmanụ injin ahụ na-arụ ọrụ ma na-adịgide adịgide n'ọnọdụ siri ike.
A na-arụnye ọkpọkọ mmiri oyi n'ime ihe ndị nwere ike ịrụ ọrụ nke ọma na ihe mkpuchi maka ogologo ndụ, a na-etinyekwa ihe mkpuchi mmiri n'ime ihe nkedo dị mgbagwoju anya nke mkpuchi stator iji belata ibu na obosara nnyefe.
N'ime ya, Revolution Max 1250 nwere crankpin abụọ nke na-agbanwe site na ogo 30. Harley-Davidson jiri ahụmịhe ọsọ ya sara mbara iji ghọta usoro ike nke Revolution Max 1250. Usoro nhazi ogo nwere ike ime ka traction dịkwuo mma n'ọnọdụ ụfọdụ ịkwọ ụgbọala n'èzí ụzọ.
E jikọtara ya na crank na mkpanaka njikọ ya bụ piston aluminom e ji ígwè rụọ nke nwere oke mkpakọ nke 13:1, nke na-eme ka ike injin ahụ dịkwuo elu n'ọsọ ọsọ niile. Ihe mmetụta nchọpụta mkpọ aka dị elu na-eme ka oke mkpakọ a dị elu kwe omume. Injin ahụ ga-achọ mmanụ octane 91 maka ike kachasị elu, mana ọ ga-agba ọsọ na mmanụ octane dị ala ma gbochie mgbawa site na teknụzụ sensọ mkpọ aka.
A na-eji chamfere ala piston ahụ, ya mere ọ dịghị mkpa ka e jiri ihe mkpuchi mgbanaka mee ya. Uwe elu piston ahụ nwere obere mkpuchi esemokwu, mgbanaka piston dị ala na-ebelata esemokwu maka ịrụ ọrụ ka mma. A na-eme ka ihe mkpuchi mgbanaka dị n'elu dịkwuo ogologo, ebe ihe mkpuchi mmanụ na-eme ka ọ dị jụụ na-atụ aka na ala piston ahụ iji nyere aka wepụ okpomọkụ nke ọkụ.
Tinyere nke ahụ, injin V-Twin na-eji isi silinda anọ (ọnụọgụ abụọ na ikuku ọkụ abụọ) iji nye mpaghara valvụ kachasị ukwuu enwere ike. Nke a na-eme ka ike dị ala na mgbanwe dị mma gaa na ike kachasị elu ka ikuku na-agafe n'ime ụlọ ọkụ na-eme ka ọ dị mma iji mezuo ihe achọrọ maka arụmọrụ na mbugharị.
Valvụ ikuku e tinyere na sodium maka ka okpomọkụ wee dị mma. A na-enweta ụzọ mmanụ e ji aka kpụọ n'isi site na teknụzụ dị elu e ji eme ihe, a na-ebelatakwa ibu n'ihi na isi ahụ pere mpe.
A na-eji ihe alloy aluminum 354 siri ike nke ukwuu kpụọ isi silinda ahụ. Ebe ọ bụ na isi ndị ahụ na-arụ ọrụ dị ka ebe a na-etinye chassis, e mere ha ka ha na-agbanwe agbanwe n'ebe a na-etinye ha mana ha siri ike n'elu ụlọ ọkụ ahụ. A na-enweta nke a site na ọgwụgwọ okpomọkụ ezubere iche.
Isi silinda ahụ nwekwara ihe ndọta na ihe ndọta na-anaghị amịpụta onwe ya maka silinda ọ bụla. Nhazi DOHC na-akwalite arụmọrụ RPM dị elu site na ibelata inertia ụgbọ okporo ígwè valvụ, na-ebute ike kachasị elu. Nhazi DOHC na-enyekwa oge valvụ mgbanwe onwe ya (VVT) na kam ndị na-etinye na ihe ndọta, nke kachasị mma maka silinda n'ihu na azụ maka eriri ike sara mbara.
Họrọ profaịlụ kamera kpọmkwem iji nweta arụmọrụ kachasị mma. Akwụkwọ ndekọ camshaft nke akụkụ draịva bụ akụkụ nke sprocket draịva, nke e mere iji kwe ka camshaft wepụ maka ọrụ ma ọ bụ nkwalite arụmọrụ n'ọdịnihu na-ewepụghị camshaft draịva.
Iji mechie ụgbọ okporo ígwè valvụ dị na Revolution Max 1250, Harley jiri valvụ pin roller pin rụọ ọrụ ya na ihe ndị na-agbanwe ihe mkpuchi hydraulic. Nhazi a na-eme ka valvụ na ihe na-eme ka valvụ (pin) nọgide na-enwe njikọ mgbe niile ka okpomọkụ injin na-agbanwe. Ihe ndị na-agbanwe ihe mkpuchi hydraulic na-eme ka ụgbọ okporo ígwè valvụ ghara ịrụ ọrụ nke ọma, na-echekwa oge na ego ndị nwe ya. Nhazi a na-anọgide na-enwe nrụgide mgbe niile na ogwe valvụ ahụ, na-eme ka profaịlụ camshaft dị ike karị maka arụmọrụ ka mma.
A na-eji usoro abụọ na-ebelata ikuku n'ime injin ahụ enyere aka site na throttles abụọ dị n'etiti silinda ma tinye ha n'ọnọdụ iji mepụta obere ọgba aghara na iguzogide ikuku. Enwere ike ịhazi nnyefe mmanụ n'otu n'otu maka silinda ọ bụla, na-eme ka akụnụba na oke ikuku dịkwuo mma. Ebe etiti nke ahụ throttle na-enye ohere ka igbe ikuku lita 11 dị n'elu injin ahụ nke ọma. A na-ahazi ikike ụlọ ikuku maka arụmọrụ injin.
Ọdịdị nke igbe ikuku na-enye ohere maka ịgba ọsọ nke ọma n'ahụ throttle ọ bụla, na-eji inertia amanye ikuku ka ukwuu n'ime ụlọ ọkụ, na-eme ka ike na-esiwanye ike. E ji naịlọn jupụtara na iko mee igbe ikuku ahụ, ya na nku dị n'ime ya iji nyere aka belata mkpọtụ ma belata mkpọtụ oriri. Ọdụ ụgbọ mmiri ndị na-eche ihu n'ihu na-egbochi mkpọtụ oriri pụọ na onye na-anya ya. Iwepụ mkpọtụ oriri na-enye ohere ka ụda ikuku zuru oke chịkwaa.
A na-ahụ na injin ahụ na-arụ ọrụ nke ọma site na sistemụ mmanụ akọrọ a pụrụ ịdabere na ya nke nwere ebe a na-etinye mmanụ n'ime ihe eji eme ka ọ dị n'ime ihe eji eme ka ọ dị n'ime ya. Ọ na-agbapụta mmanụ ugboro atọ site na ụlọ injin atọ (crankcase, stator chamber na clutch chamber). Ndị na-agba ya na-enweta arụmọrụ kacha mma n'ihi na ike parasitic na-ebelata n'ihi na ihe dị n'ime injin ahụ agaghị agbagharị site na mmanụ karịrị akarị.
Windscreen ahụ na-egbochi clutch ahụ ịchaji mmanụ injin ahụ, nke nwere ike ibelata mmanụ. Site n'inye mmanụ site na etiti crankshaft ruo na bearings mkpanaka bụ isi na njikọ, imewe a na-enye obere nrụgide mmanụ (60-70 psi), nke na-ebelata mfu ike parasitic na nnukwu rpm.
Nkasi obi nke ụgbọ elu Pan America 1250 na-eme ka ọ dị mma site na ihe nhazi dị n'ime nke na-ewepụ ọtụtụ mkpọtụ injin, na-eme ka nkasi obi nke onye na-agba ya dịkwuo mma ma na-agbatị ike nke ụgbọ ala ahụ. Ihe nhazi bụ isi, nke dị na crankcase, na-achịkwa mkpọtụ bụ isi nke crankpin, piston na mkpanaka njikọ mepụtara, yana "clutch rolling" ma ọ bụ enweghị nguzozi aka ekpe-aka nri nke silinda na-adịghị edozi nke ọma kpatara. Ihe nhazi enyemaka dị n'isi silinda dị n'etiti camshafts na-emeju ihe nhazi bụ isi iji belata mkpọtụ.
N'ikpeazụ, Revolution Max bụ otu ụgbọala mbanye, nke pụtara na injin na igbe gear isii dị n'otu ahụ. E nwere diski esemokwu asatọ e mere iji nye njikọ aka mgbe niile na ike kachasị elu n'oge ndụ nke clutch ahụ. Mmiri ndị na-akwụghachi ụgwọ na draịva ikpeazụ na-eme ka mkpali torque crankshaft dị larịị tupu ha erute igbe gear, na-eme ka nnyefe torque na-aga n'ihu.
N'ozuzu, Revolution Max 1250 V-Twin bụ ezigbo ihe atụ nke ihe mere ọgba tum tum Harley-Davidson ka ji dị mkpa.
Ndị na-akwado injin nke izu a bụ PennGrade Motor Oil, Elring-Das Original na Scat Crankshafts. Ọ bụrụ na ị nwere injin ịchọrọ ịkọwapụta na usoro a, biko zitere onye nchịkọta akụkọ Engine Builder Greg Jones ozi email [email protected]
Oge ozi: Nọvemba-15-2022