Tanki yophatikizirapo mafuta kapena chidebe chophatikizira mafuta ndi chipangizo chomwe chimayikidwa mu makina olowera mpweya wa cam/crankcase pagalimoto. Kuyika tanki yophatikizira mafuta (chitini) kumafuna kuchepetsa kuchuluka kwa nthunzi yamafuta yomwe imazunguliranso mu injini.
Positive crankcase mpweya wabwino
Injini yagalimoto ikamagwira ntchito bwino, nthunzi zina zochokera mu silinda zimadutsa pa mphete za pisitoni ndikupita ku crankcase. Popanda mpweya wabwino, izi zitha kukakamiza crankcase ndikuyambitsa zovuta monga kusowa kwa mphete ya piston ndi zosindikizira zowonongeka zamafuta.
Pofuna kupewa izi, opanga adapanga makina opangira mpweya wa crankcase. Poyambirira uku kunali kukhazikitsidwa kofunikira komwe fyuluta inkayikidwa pamwamba pa cam kesi ndipo kupanikizika ndi nthunzi zimatuluka mumlengalenga. Izi zidawonedwa ngati zosavomerezeka chifukwa zimalola kuti chifuyo ndi nkhungu zamafuta zitulutsidwe mumlengalenga zomwe zidayambitsa kuipitsa. Zitha kuyambitsanso zovuta kwa omwe ali mgalimotomo chifukwa amatha kukokedwa mkati mwagalimoto, zomwe nthawi zambiri zimakhala zosasangalatsa.
Cha m'ma 1961 chojambula chatsopano chinapangidwa. Kapangidwe kameneka kanayendetsa mpweya wopumira m'galimoto. Izi zikutanthauza kuti nthunzi ndi nkhungu zamafuta zitha kuwotchedwa ndikutulutsidwa m'galimoto kudzera mu utsi. Sikuti izi zinali zosangalatsa kwambiri kwa anthu omwe anali m'galimoto zimatanthawuzanso kuti nkhungu yamafuta sinatulutsidwe mumlengalenga kapena mumsewu potengera makina opangira mpweya wabwino.
Mavuto obwera chifukwa cha kudya kwapang'onopang'ono kupuma
Pali zinthu ziwiri zomwe zingayambitsidwe ndikusintha mpweya wopumira munjira yolowera mu injini.
Chachikulu ndichakuti mafuta ochulukirapo amapangidwa m'mapaipi olowera komanso osiyanasiyana. Panthawi yomwe injini ikugwira ntchito, kuwomba kopitilira muyeso ndi nthunzi zamafuta kuchokera ku crank case zimaloledwa kulowa munjira yolowera. Nkhungu yamafuta imazizira ndikuyika mkati mwa mapaipi olowetsamo ndi kuchulukitsa. M'kupita kwa nthawi wosanjikiza uwu ukhoza kuwonjezeka ndipo matope ochuluka amatha kuwunjikana.
Izi zaipiraipira poyambitsa makina a exhaust gas recirculation (EGR) pamagalimoto amakono. Mpweya wamafuta ukhoza kusakanikirana ndi mpweya wotulutsa mpweya wozunguliranso ndi mwaye womwe umamangirira pamadzi ochulukirapo komanso ma valve etc. Wosanjikiza pakapita nthawi amaumitsa ndikuwonjezera mobwerezabwereza. Kenako imayamba kutsekereza thupi la throttle, swirl flaps, kapena ma valve olowetsa pama injini obaya mwachindunji.
Kukhala ndi matope ochuluka kungayambitse kuchepa kwa ntchito chifukwa cholepheretsa mpweya wopita ku injini. Ngati kuchulukirako kukuchulukirachulukira pathupi la throttle kungayambitse kusagwira bwino ntchito chifukwa kumatha kutsekereza kutuluka kwa mpweya pomwe throttle plate yatsekedwa.
Kuyika tanki yophatikizira (chitini) kumachepetsa kuchuluka kwa nthunzi wamafuta wofika panjira yolowera ndi chipinda choyaka moto. Popanda nthunzi wamafuta, mwaye wochokera ku valavu ya EGR sungasunthike kwambiri pakumwa zomwe zingapangitse kuti kudya kusakhale kotsekeka.