Nekuda kwekukuvara kunogona kuitika neinjini idzi kubva kuzvinhu zvakaita sekunyudzwa kwemvura, kuora, zvikamu zvinouya zvakasununguka kana kutyoka, uye zvimwe zvisingaverengeki zvimwe zvinhu, kuramba uri pamusoro pekuchengetedza injini yako yemugungwa kwakakosha.
Chirevo chekare chokuti igwa igomba mumvura yaunokanda mari, chiriko nechikonzero mabhoti, uye injini dzawo, dzinodhura zvikuru. Zvinotoda homwe dzakadzika kuti ukwanise kutenga injini dzemugungwa dzepamusoro pekutanga uye kuti dzirambe dziri mumhando yepamusoro.
Nekuda kwekukuvara kunogona kuitika neinjini idzi kubva kuzvinhu zvakaita sekunyudzwa kwemvura, kuora, zvikamu zvinouya zvakasununguka kana kutyoka, uye zvimwe zvisingaverengeki zvimwe zvinhu, kuramba uri pamusoro pekuchengetedza injini yako yemugungwa kwakakosha. Nepo basa rekutanga muchina rinodiwa kuvaka injini yemugungwa rakafanana neinjini yemotokari, ndipo panopera kufanana.
Marine injini dzine nzvimbo yekushanda yakasiyana zvachose kupfuura injini dzemotokari. Ivo vanowanzo pedza yakawanda yenguva yavo vari parwendo kana kuti yakazara throttle. Kumhanya kwechikepe kwechikepe kwakasiyana zvakanyanya pane kwemotokari inofamba ichidzika nemugwagwa mukuru. Cruising rpm kweakawanda eidzi injini dzemugungwa i3,500 kusvika 4,000 rpm zvichienderana nereshiyo yekutyaira uye saizi yeprop. Kana tichienzanisa, yakajairika injini yemotokari inongove ichishandura 1,600 kusvika 2,000 rpm pakumhanya kwemugwagwa.
Full throttle zvakare yakasiyana. Iine injini yemugungwa, inonyatso kuzara munzira yese pamwe 5,500 kusvika 7,500 rpm kana kupfuura kwenguva yakareba (pamwe maawa), izvo zvinoisa kushushikana kwakawanda painjini nevairi mukati. Kuwanda kwekuita kwemumugwagwa, denderedzwa track uye mugwagwa injini dzemujaho, nekuenzanisa, kungoona peak rpms mupfupi kuputika, uye inogara ichichinja rpm sezvo mutyairi ari uye kubva pamhepo. Mazhinji einjini dzemotokari dzinotakura vanhu havawanzoona rutivi rwepamusoro rwe4,500 rpm uye vanopedza yakawanda yenguva yavo vasina basa kana kurodha pamwe neakaderera rpms. Nemujaho wekuzvuzvurudza uye tirakita inodhonza mota, yakazara throttle inongogara kwechinguva chidiki kusvika iyo throttle yavharika uye injini yadzoka pasi kuita isina basa.
Imwe mutsauko wakakosha pakati pezvikepe nemota ndewekuti mabhoti haafambe. Motokari inogara ichisundira chikepe mberi. Iko hakuna kutsigira uye chikepe hachigone kushandisa injini yekubhureki. Kana mutyairi asina ruzivo rwokuzviwanira achimhanya mhanya obva angoerekana oburuka achirovera, igwa duku rinogona kunyura mumhino uye rinogona kutopenengura pamusoro!
Kunetsa kwekumhanya pasi pemutoro unogara uye yakakwirira rpm zvinoreva kuti injini dzemugungwa dzinofanirwa kuvakwa dzakaomarara zvakanyanya. Izvozvo zvinoreva chimwe chinhu kunze kwezvikamu zvakanakisisa zvakadai se forged and billet cranks, forged, billet kana simbi yekubatanidza tsvimbo, forged pistons, ductile iron nesimbi mhete, ARP rod bolts uye musoro mabhaudhi, Stainless simbi mavharuvhu, yepamusoro-mhando valve zvitubu, forged aruminiyamu. kana simbi dzinoita rockers, gobvu-madziro kana oversized pushrods, roller lifters, uye kaviri roller cheni kana bhandi cam dhiraivha. Iko hakuna makona ekucheka kana iwe uchida kuti injini yemugungwa igare.
Chinhu chipi nechipi chinowanikwa mumvura (kunyanya mvura ine munyu) inofanira kuva inodzivirira kuora. Izvi zvinoreva kuti anodized mabhanhire emisoro yealuminium uye manifolds, simbi isina tsvina kana bhuronzi pombi uye mafittings, ndarira kana stainless chando mapulagi, uye imwe mhando yependi yemugungwa kana anti-corrosive coating yebhuroko, pani yemafuta, zvivharo zvevharuvhu uye chivharo chenguva.
Nekuti mainjini emugungwa ari kushanda nesimba nguva zhinji, anoda kutonhora kwakawanda. Mabhoti anoshandisa kunze kutonhora kwemvura anoyamwa mvura muinotonhodza system kuburikidza neinopinza chiteshi pasi pechikepe kana mumashure mekutyaira. Pombi yemvura yakaparadzana inokwevera mvura mukati uye yoiendesa kune yechipiri pombi yemvura pamota (mechanikoni kana yemagetsi). Pombi dzemvura dzinofanirwa kunge dziine mapeller, mavhavha uye dzimba.
Mvura-yakatonhodzwa epositi manifolds anoshandiswa neinjini dzakawanda dzemukati. A heat exchanger inogona kushandiswa kukwidza tembiricha yemvura iri kuuya. Mvura-yakatonhodzwa manifolds inobatsirawo kudzivirira kupisa kukwira muzvikepe umo injini dziri mukamuri rakavharwa.
Iyo inogara ichiremerwa painjini yemugungwa inoreva kuti inomhanya inopisa, kunyangwe paine kutonhora kwakawanda. Kupisa kwakawanda kunokonzeresa kuwedzera kwemafuta, saka unofanirwa kubvumidza zvishoma piston-ku-cylinder clearance kuderedza njodzi yekukwesha. Ditto kune madhairekitori evharuvhu. Exhaust valve zvigaro zvinofanirawo kuva zvakafara kuitira zviri nani kupisa kupisa, uye zvigaro zvinofanira kuva alloy yemhangura kukurudzira kukurumidza kupisa kupisa.
Special coatings inogonawo kubatsira kudzivirira kupisa kukuvara pazvikamu zvakakosha. Kupokana-kudzikisa anti-scuff coating pamasiketi episton uye mabhengi anogona kupa inishuwarenzi yakawedzerwa, nepo kupisa kunoratidzira uye kuburitsa machira kunogona kubatsira kubata kupisa kumwe kunhu muinjini.
Kuchengeta injini yegungwa yakarukwa zvakare zvinonetsa nekuda kwekukwira-uye-pasi kwekudengenyeka kunoitwa nemasaisai. Mapani emafuta anofanirwa kuve akasimba uye ave nehukuru hwakawanda, kuti mota isapere mafuta. Inodawo kuve nemabaffles uye windage tray kuti ichengete mafuta paari. Yekunze inotonhorera oiri yakakoshawo kugadzirisa kupisa, uye tembiricha yemafuta thermostat inowanzova chikamu cheiyo system saka mafuta anotonhora anogona kupfuura inotonhorera uye kuuya nekukurumidza kune yakajairika tembiricha. Pombi yemafuta uye chubhu yepikicha inofanirawo kusimbiswa uye chubhu yaiswa simbi papombi kuti ishingirire kuzunguzika kwese uye kurova kwaichaitika.
Pamainjini akakwira chaizvo (1,000 horsepower kana kupfuura), yakaoma sump oiri sisitimu ndiyo nzira yakanakisa yekuenda kunovimbisa kugara uchipihwa mafuta kumota.
Hupenyu hwesevhisi yeinjini yemugungwa hunogona kubva pa500 kusvika kumaawa 600, nepo iyo ye1,000 hp-plus injini ingangove maawa mazana maviri kusvika mazana matatu. Vamwe vavaki veinjini dzemugungwa vanokurudzira kufefetedza zvitubu zvevharuvhu uye hydraulic roller lifters mushure memaawa mazana maviri ekushandiswa.
Izvo zvakakosha kuti vavaki veinjini dzemugungwa vavake uye vavakezve injini idzi zvakakwana. Kana mutengi akangoshandisa tani yemari pane injini isina kumira, haasi kuzova mutengi anofara kana kudzokorora mutengi.
pZvose mukati nekunze kweinjini idzi zvakafanira kukwanisa kuvhunduka kumhanya nekurova masaisai,q anodaro Tyler Crockett weTyler Crockett Marine Engines. pZvinhu zvese zvinofanirwa kuve vibration proof uye zvese zvinofanirwa kuchengetedzwa. Nguva zhinji, tinomhanyisa mabhanhire maviri pane vanogovera vedu kuti vasafambe kana vachirova mvura ine hutsinye, uye isu tinomhanyisa mabhureki pane chimwe chinhu kuti tikwanise kutora kuvhunduka kwekumhanya munzvimbo yakaoma. mvura.
“Isu takatomboenda ku-deep groove v-belts nemapulleys nekuti unenge uchifamba-famba mumvura ine madhaka, izvo zvinoita kuti pasave nemukana wekuti bhandi ribviswe richikudhurira mujaho. Isu tinoshandisawo maviri hose clamps pane yakawanda hose hose yemvura nekuti iwe unogona kuvaka yakawanda yekumanikidza kwemvura paunenge uchipinda nekubuda mumvura. Naizvozvo, isu tine mavharuvhu ekuputika pamasefa edu egungwa nekuti kudzvanywa kuchakwira pamusoro pemazana maviri emapaunzi.
“Isu tinoita zvakare marashi akawanda mukati meinjini dzedu uye tinoisa maoiri imomo zvakare. Isu tinoshandisa piston oilers uye isu tinoshandisa oiri system iyo mabhaudhi mumupata kupfapfaidza mafuta pane anosimudza zvakare. Isu tinoitawo shuwa kuti tawana mavhoriyamu makuru emvura kuburikidza nejini kuti igare ichitonhorera. Dziva kana gungwa rinoshanda seradiyeta yeinjini dzedu. Isu tinovandudza kuyerera kwemvura nekushandisa pombi yemvura ine nhanho mbiri ichipa rimwe divi remota nechikamu chimwe chepombi uye rimwe divi remota ine nhanho yechipiri yepombi.
Kunyange mvura ichikosha pakushanda kwakaringana kweinjini dzemugungwa, ndicho chikonzero nei injini idzi dzichipinda mumatambudziko uye dzinoda kuzorodzwa. Mvura yemunyu ndiyo imwe yemhosva huru kana zvasvika pakukonzera kukuvara kweinjini.
p Zvizhinji zvinouya kumushandisi wekupedzisira uye nemabatiro avanoita injini (ma) mushure mekushandisa kwese, q anodaro Darryl Hameetman weHameetman Racing Engines. pKuzvichengeta zviri kwavari uye vamwe vakomana vakanaka nezvazvo uye vane rombo rakanaka nazvo, uye vamwe vakomana, kwete zvakanyanya. "
Sekureva kwaCrockett, kuora kwemvura yemunyu kunodya misoro yealuminium uye kukonzera matambudziko. pTinoisa misoro muchigayo uye ini ndinogaya mumusoro wealuminium kusvika ndawana aluminium yakachena,q anodaro. pIpapo ndakavabatanidza vose ndokuvamutsazve.”
Kubatsira zvinoumba injini dzemugungwa zviri nani kurwisa ngura uye kukuvadzwa kwemvura, vazhinji vanovaka injini vanoshandisa mabhanhire mukuvaka kwavo, kunyanya pamapiston nemabhengi kuti vawedzere kudzivirirwa.
“Pakushandisa mvura ine munyu, tinopfekera mukati memabhachi emvura nePromax marine coating. Gaskets ese isimbi isina tsvina, uye kunze kwemota kwakapfapfaidzwa nependi yeMercury marine yekudzivirira.
Apo injini dzinouya kuzozorodza, basa rinowanzozivikanwa ndeye valvetrain ine hukama kana ine kukuvara kwemvura. Ndizvo zvinowanzoitika injini yegungwa kana musoro ukatsemuka kana kuti pombi inotsemuka kana mavharuvhu otanga kunamira injini yotanga kudhonza mvura ichidzokera mukati.
Nekuti kusimba kweinjini kunoremerwa zvakanyanya pakuita kwevhavhatrain, iyo nzvimbo yeinjini inofanirwa kunge iri muhurongwa hwekushanda kwakanaka. Tyler Crockett Marine Engines anowanzo chinja ma lifter uye mavharuvhu zvitubu pane ayo mafaro echikepe injini kwemaawa mazana maviri nemakumi mashanu. Kune vatengi vechikwata chemujaho, chitoro chinochinja zvinosimudza uye vharafu inobuda mijaho mitanhatu yega yega.
Sezvo mumwe nemumwe muridzi wechikepe anoshandisa chikepe chavo nemaitiro akasiyana, aya ekuchengetedza anozosiyana, asi zvichiri kukosha kuziva kana injini yako ichizoda kuzorodza.
pVamwe vakomana vanomhanya kupera kwesvondo rega rega, saka zviri pachena kuti vanofanirwa kugara pamusoro pekugadzirisa kwavo nguva zhinji uye kuvaka patsva nekukurumidza kupfuura mukomana anomhanya kamwe chete pamwedzi, q anodaro Daryl Hameetman weHameetman Racing Engines. pNe1,000 hp, ingangoda kuvakwazve mumaawa 250-300. Zvinhu zvikuru zvine simba rebhiza zvinogona kunge zviri maawa makumi matanhatu, zvichienderana nemafambisirwo azvinoitwa.”
Sekureva kwaBob Madara weMarine Kinetics, hupenyu hwezvitubu zvevharuvhu zvinoenderana nemhando yechirimo, kubuda kwesimba reinjini uye maawa mangani ainomhanya parwendo kuenda kune yakavhurika throttle. pA seti yezvitubu zvevharuvhu mu502 cid motor inofanirwa kuchinjwa mushure memaawa 300 kusvika ku400, kunyangwe ichiri kutaridzika uye kuyedza zvakanaka," Madara anodaro. "Ndizvo nekuti zvitubu zvevharuvhu zvinogona kungoerekana zvakundikana pasina yambiro uye iwe uri nani wakachengeteka pane urombo."
Iko hakuna chirevo chechokwadi kupfuura icho kana zvasvika kumainjini emugungwa. Iwe hausi kuda kusiiwa wakabatikana nekuti hauna kuteerera yambiro. Vavaki veinjini vanofanirwa kuona kuti vatengi vavo veinjini dzemugungwa vari kuwana sevhisi panguva dzakakodzera, uye varidzi vezvikepe vanofanirwa kugara vachionana nevavaki vavo kuti vaone kuti hapana chinokanganisa panguva isina kukodzera. EB
Nguva yekutumira: Jan-12-2021
