Chifukwa cha kuwonongeka komwe kungachitike ndi ma injiniwa kuchokera ku zinthu monga kumeza madzi, dzimbiri, mbali zotuluka kapena zosweka, ndi zina zambiri, kukhala pamwamba pa kukonza injini yanu yam'madzi ndikofunikira.
Mwambi wakale wakuti bwato ndi dzenje m’madzi amene umaponyeramo ndalama, ulipo chifukwa cha mabwato, ndipo injini zake ndi zodula kwambiri. Zimatengeradi matumba akuya kuti mugule injini zam'madzi zapamwamba kwambiri poyamba ndikuzisunga bwino.
Chifukwa cha kuwonongeka komwe kungachitike ndi ma injiniwa kuchokera ku zinthu monga kumeza madzi, dzimbiri, mbali zotuluka kapena zosweka, ndi zina zambiri, kukhala pamwamba pa kukonza injini yanu yam'madzi ndikofunikira. Ngakhale ntchito yofunikira yamakina yomwe imafunikira kupanga injini yam'madzi imakhala yofanana ndi injini yamagalimoto, ndipamene kufanana kumathera.
Ma injini am'madzi ali ndi malo ogwirira ntchito mosiyana kwambiri kuposa ma injini zamagalimoto. Nthawi zambiri amathera nthawi yawo yambiri paulendo wapamadzi kapena kuchita masewera olimbitsa thupi. Liwiro la bwato ndi losiyana kwambiri ndi la galimoto yoyenda mumsewu waukulu. Mayendedwe othamanga pama injini ambiri am'madziwa ndi 3,500 mpaka 4,000 rpm kutengera kuchuluka kwa magalimoto ndi kukula kwake. Poyerekeza, injini yamagalimoto wamba imangotembenuza 1,600 mpaka 2,000 rpm pa liwiro la misewu yayikulu.
Kuthamanga kwathunthu kumasiyananso. Ndi injini yam'madzi, imakhala yothamanga kwambiri mpaka 5,500 mpaka 7,500 rpm kapena kupitilira apo kwa nthawi yayitali (mwina maola), zomwe zimayika kupsinjika kwambiri pa injini ndi omwe ali mkati mwake. Zochita zambiri mumsewu, mayendedwe ozungulira ndi injini zothamangira mumsewu, poyerekeza, zimangowona ma rpms othamanga pang'onopang'ono, ndipo nthawi zonse amasintha rpm pomwe dalaivala akuyenda ndikuchoka. Ma injini ambiri amagalimoto onyamula anthu nthawi zambiri sawona mbali yokwera ya 4,500 rpm ndipo amathera nthawi yawo yambiri akuyenda kapena kunyamula pamayendedwe otsika kwambiri. Ndi mpikisano wokoka ndi ma motors kukoka mathirakitala, kuthamanga kwathunthu kumangokhala kwa masekondi pang'ono mpaka phokosolo lizitseka ndipo injini imabwereranso kukhala yopanda ntchito.
Kusiyana kwina kofunikira pakati pa mabwato ndi magalimoto ndikuti mabwato samayenda m'mphepete mwa nyanja. Nthawi zonse injini imakankhira bwato patsogolo. Palibe kuthandizira ndipo boti silingagwiritse ntchito injini pobowoleza. Ngati dalaivala wosadziwa akuthamanga kwambiri ndipo mwadzidzidzi akutsika ndi phokoso, bwato laling'ono limatha kuthawa mphuno ndipo likhoza kutembenuka!
Kuthamanga kothamanga kosalekeza komanso kuthamanga kwambiri kumatanthauza kuti ma injini am'madzi amayenera kumangidwa molimba kwambiri. Izi sizikutanthauza kanthu koma mbali zabwino kwambiri monga ma crank opangira ndi ma billet, zopangira, billet kapena zitsulo zolumikizira ndodo, ma pistoni opangira, mphete zachitsulo ndi zitsulo, ma bolts a ARP ndi ma bolt amutu, ma valve zitsulo zosapanga dzimbiri, akasupe a valve apamwamba kwambiri, aluminiyamu yonyezimira. kapena zoponya zitsulo, zolimba-khoma kapena zazikulu kwambiri, zonyamula ma roller, ndi unyolo wodzigudubuza pawiri kapena ma cam a lamba. Palibe njira zodulira ngati mukufuna kuti injini yapamadzi ikhale yayitali.
Chilichonse chomwe chimalowa m'madzi (makamaka madzi amchere) chiyenera kukhala chopanda dzimbiri. Izi zikutanthawuza zokutira za anodized pamutu wa aluminiyamu ndi manifolds olowera, zitsulo zosapanga dzimbiri kapena mipope zamkuwa, mapulagi amkuwa kapena osapanga dzimbiri, ndi mtundu wina wa utoto wam'madzi kapena zokutira zoletsa kuwononga kwa chipika, poto yamafuta, zovundikira ma valve ndi chivundikiro cha nthawi.
Chifukwa ma injini am'madzi akuthamanga kwambiri nthawi zambiri, amafunikira kuziziritsa kwambiri. Maboti omwe amagwiritsa ntchito kuziziritsa kwamadzi akunja amayamwa madzi munjira yozizira kudzera padoko lolowera pansi pa boti kapena kumbuyo kwagalimoto. Pampu yamadzi yosiyana imakoka madzi ndikuwapititsa ku mpope wachiwiri wamadzi pamoto (makina kapena magetsi). Mapampu amadzi amayenera kukhala ndi zolumikizira zosachita dzimbiri, zophimba komanso zomangira.
Zopopera zoziziritsidwa ndi madzi zimagwiritsidwa ntchito ndi injini zambiri zamkati. Chotenthetsera chingagwiritsidwe ntchito kukweza kutentha kwa madzi omwe akubwera. Zowonjezereka zoziziritsidwa ndi madzi zimathandizanso kuteteza kutentha kwa mabwato kumene ma injini ali mu chipinda chophimbidwa.
Kulemera kosalekeza pa injini ya m'madzi kumatanthauza kuti imatentha, ngakhale kuzizira kwambiri. Kutentha kochulukirapo kumapangitsa kuti matenthedwe achuluke kwambiri, kotero muyenera kulola chilolezo cha piston-to-cylinder kuti muchepetse chiwopsezo cha scuffing. Ditto kwa owongolera ma valve. Mipando ya valve yotulutsa mpweya iyeneranso kukhala yotakata kuti itenthe kutentha bwino, ndipo mipando iyenera kukhala aloyi yamkuwa kuti ipititse patsogolo kutentha kwachangu.
Zovala zapadera zingathandizenso kuteteza kutentha kwa magawo ovuta. Chophimba chochepetsa mikangano cha anti-scuff pa masiketi a pistoni ndi mayendedwe atha kupereka inshuwaransi yowonjezera, pomwe zokutira zonyezimira komanso zotayira zimatha kuthandizira kutentha kwina kulikonse mu injini.
Kusunga injini ya m'madzi yopaka mafuta kumakhala kovuta chifukwa cha kugwedezeka kwamphamvu komwe mafunde amatulutsa. Ziwaya zamafuta ziyenera kukhala zolimba komanso kukhala ndi mphamvu zambiri, kuti injini isathe mafuta. Iyeneranso kukhala ndi thireyi ndi thireyi yamphepo kuti mafuta azikhala pomwe akuyenera. Chozizira chakunja chamafuta ndichofunikiranso pakuwongolera kutentha, ndipo chotenthetsera kutentha kwamafuta nthawi zambiri chimakhala gawo la makinawo kotero kuti mafuta ozizira amatha kudutsa choziziriracho ndikubwera mwachangu ku kutentha kwanthawi zonse. Pampu yamafuta ndi chubu chonyamulira ziyeneranso kumangiriridwa ndipo chubucho chiwongoleredwe ku mpope kuti chipirire kugwedezeka konse ndi kugunda komwe kungachitike.
Pa injini zotulutsa zokwera kwambiri (mahatchi 1,000 kapena kupitilira apo), makina owuma a sump nthawi zambiri amakhala njira yabwino yopititsira kutsimikizira kupezeka kwamafuta ku injini.
Moyo wautumiki wa injini yapamadzi ukhoza kuyambira maola 500 mpaka 600, pomwe injini ya 1,000 hp-plus imatha kukhala maola 200 mpaka 300 okha. Ena omanga injini zam'madzi amalimbikitsa kutsitsimutsa akasupe a valve ndi zonyamula ma hydraulic roller pambuyo pa maola 200 akugwiritsa ntchito.
Ndikofunikira kuti omanga injini zam'madzi amange ndikumanganso injinizi mwangwiro. Ngati kasitomala amangowononga matani a ndalama pa injini yomwe sinayime, sakhala kasitomala wokondwa kapena kasitomala wobwereza.
pChilichonse mkati ndi kunja kwa injinizi chiyenera kugwedezeka chifukwa cha kuthamanga ndi kugunda kwa mafunde, q akutero Tyler Crockett wa Tyler Crockett Marine Engines. pChilichonse chiyenera kukhala chitsimikiziro cha kugwedezeka ndipo zonse ziyenera kutetezedwa. Nthawi zambiri, timayendetsa ma clamp awiri pa omwe amagawa kuti asasunthe akamamenya madzi ovuta, ndipo timayika mabatani pafupifupi gawo lililonse kuti tithe kugwedezeka. madzi.
"Tidapitanso kumalamba akuzama kwambiri ndi ma pulleys chifukwa mumangoyendayenda m'madzi ovuta, kotero kuti mwayi wocheperako wotuluka lamba ndikuwonongerani mpikisano. Timagwiritsanso ntchito ziboliboli ziwiri zapaipi pamipaipi yayikulu yambiri yamadzi chifukwa mutha kupanga madzi ochulukirapo mukamalowa ndikutuluka m'madzi. Chifukwa chake, tili ndi ma valve ophulitsa pamasefa athu am'nyanja chifukwa kuthamanga kudzakwera ma mapaundi mazana angapo.
"Timapanganso zokutira zambiri mkati mwa injini zathu ndipo timayikamonso mafuta. Timagwiritsa ntchito mafuta opangira pisitoni ndipo timagwiritsa ntchito makina opaka mafuta omwe amamangirira m'chigwa popopera mafuta pazonyamulanso. Timaonetsetsanso kuti timapeza madzi ochuluka kudzera mu injini kuti ikhale yozizira. Nyanja kapena nyanja imakhala ngati radiator yamainjini athu. Timapititsa patsogolo kayendedwe ka madzi pogwiritsa ntchito mpope wamadzi wa magawo awiri kudyetsa mbali imodzi ya injini ndi gawo limodzi la mpope ndi mbali ina ya injini ndi gawo lachiwiri la mpope. "
Ngakhale kuti madzi ndi ofunikira kuti mainjini am'madzi azigwira ntchito moyenera, ndi chifukwa chimodzi chomwe mainjiniwa amakumana ndi zovuta ndipo amafunika kutsitsimutsidwa. Madzi amchere ndi chimodzi mwazomwe zimayambitsa kuwonongeka kwa injini.
Zambiri zimatsikira kwa wogwiritsa ntchito komanso momwe amathamangitsira injini (ma) injini nthawi zonse, q akutero Darryl Hameetman wa Hameetman Racing Engines. pKuzisunga zili kwa iwo ndipo anyamata ena ndi abwino kwambiri ndipo ali ndi mwayi wabwino nazo, ndi anyamata ena, osati kwambiri. "
Malinga ndi Crockett, dzimbiri lamadzi amchere limadya mitu ya aluminiyamu ndikuyambitsa mavuto. pTimayika mitu mu chigayo ndikugaya mutu wa aluminiyamu mpaka nditapeza aluminiyamu yoyera,q akutero. pKenako ndidawawotcha onse ndikuwatsitsimutsanso.”
Pofuna kuthandizira zida za injini za m'madzi kulimbana bwino ndi dzimbiri ndi kuwonongeka kwa madzi, opanga injini ambiri amagwiritsa ntchito zokutira pomanga, makamaka pa pistoni ndi mabere kuti atetezedwe.
"Pazopaka madzi amchere, timavala mkati mwa jekete zamadzi ndi zokutira zam'madzi za Promax. Ma gaskets onse ndi zitsulo zosapanga dzimbiri, ndipo kunja kwa galimotoyo kumapakidwa utoto woteteza dzimbiri wa Mercury.
Ma injini akabwera kudzatsitsimutsidwa, ntchito yodziwika bwino ndi yokhudzana ndi valvetrain kapena ili ndi kuwonongeka kwa madzi. Izi nthawi zambiri ndizomwe injini yam'madzi imayendera ngati mutu wathyoka kapena chitoliro chamchira chikung'ambika kapena mavavu ayamba kumamatira ndipo injiniyo iyamba kubweza madzi.
Chifukwa kulimba kwa injini kumalemedwa kwambiri pakugwira ntchito kwa valvetrain, gawolo la injini liyenera kukhala logwira ntchito bwino. Tyler Crockett Marine Engines nthawi zambiri amasintha zonyamulira ndi ma valve akasupe pamainjini ake osangalatsa a mabwato pafupifupi maola 250 aliwonse. Kwa makasitomala amagulu othamanga, sitolo imasintha zokwezera ndipo ma valve amatuluka mipikisano isanu ndi umodzi iliyonse.
Popeza mwini boti aliyense amagwiritsa ntchito bwato lake mosiyanasiyana, zosungirako izi zimasiyana, komabe ndikofunikira kudziwa nthawi yomwe injini yanu idzafunikire kutsitsimutsidwa.
pAnyamata ena amathamanga kumapeto kwa sabata iliyonse, kotero mwachiwonekere amayenera kukhala pamwamba pa kukonza kwawo nthawi zambiri ndikumanganso mwamsanga kuposa munthu amene amathamanga kamodzi pamwezi, q akutero Daryl Hameetman wa Hameetman Racing Engines. pPa 1,000 hp, ingafunike kumangidwanso mu maola 250-300. Zinthu zazikulu zamahatchi zimatha kukhala maola 60, kutengera momwe amayendetsera. ”
Malinga ndi Bob Madara wa Marine Kinetics, moyo wa akasupe a valve umadalira mtundu wa kasupe, mphamvu ya injini ndi maola angati yomwe imathamanga paulendo wopita kumtunda wotseguka. pA ma valve akasupe mu 502 cid motor ayenera kusinthidwa pambuyo pa maola 300 mpaka 400, ngakhale akuwonekabe bwino, "adatero Madara. "Ndichifukwa chakuti akasupe a valve amatha kulephera mwadzidzidzi popanda chenjezo ndipo mumakhala bwino kusiyana ndi chisoni."
Palibe zonena zoona kuposa izi zikafika pamainjini am'madzi. Simukufuna kuti mukhale osowa chifukwa simunamvere machenjezo. Omanga mainjini akuyenera kuwonetsetsa kuti makasitomala awo a injini zam'madzi akupeza ntchito panthawi yoyenera, ndipo eni mabwato azilumikizana ndi omwe amawamanga kuti awonetsetse kuti palibe cholakwika chilichonse panthawi yoyenera. EB
Nthawi yotumiza: Jan-12-2021
