Itanki yokubambisa i-oyile okanye inkonkxa yokubambisa i-oyile sisixhobo esifakelwe kwi-cam/crankcase system yokuphefumla emotweni. Ukufakela itanki yokubambisa i-oyile (inkonkxa) kujolise ekunciphiseni ubungakanani bomphunga we-oyile ophinda ujikelezwe kwi-injini.
I-positive crankcase ventilation
Ngexesha lokusebenza okuqhelekileyo kwe-injini yemoto, omnye umphunga osuka kwicylinder udlula ngamakhonkco episton uye wehle kwi crankcase. Ngaphandle kokungena komoya oku kunokucinezela i-crankcase kwaye kubangele imiba efana nokunqongophala kokutywinwa komsesane wepiston kunye nokutywinwa kweoyile eyonakeleyo.
Ukunqanda oku, abavelisi benza inkqubo yokufaka umoya we-crankcase. Ekuqaleni oku bekusoloko kuluseto olusisiseko apho isihluzi sabekwa phezu kwecala lecam kwaye uxinzelelo kunye nomphunga zaye zafakwa emoyeni. Oku kwabonwa njengokungamkelekanga njengoko kwakuvumele umsi kunye ne-oyile ukuba ikhuphelwe ngaphandle emoyeni ebangele ungcoliseko. Kwakhona kunokubangela imiba kubahlali bemoto njengoko inokutsalwa ngaphakathi kwemoto, eyayihlala ingathandeki.
Malunga ne-1961 uyilo olutsha lwenziwa. Olu yilo lwahambisa i-crank breather kwindawo yokungena emotweni. Oku kuthetha ukuba umphunga kunye ne-oyile ye-oyile inokutshiswa kwaye ikhutshwe ngaphandle kwemoto nge-exhaust. Oku kwakungeyona nto imnandi kubagibeli beemoto kwaye kwakuthetha ukuba inkungu yeoli ayizange ikhutshwe emoyeni okanye endleleni kwimeko yeenkqubo zokungenisa umoya ityhubhu.
Iingxaki ezibangelwa kukuthatha okuhamba nge-crank breathers
Kukho imiba emibini enokubangelwa kukuhambisa i-crank breather kwi-intake system ye-injini.
Umba ophambili kukugcwala kweoyile ngaphakathi kwimibhobho yokungena kunye nezinto ezininzi. Ngexesha lokusebenza okuqhelekileyo kwe-injini ukuvuthela okugqithisileyo kunye nomphunga we-oyile ovela kwi-crank case uvumelekile ukuba ungene kwinkqubo yokuthatha. Inkungu ye-oyile iyaphola kwaye yondlala ngaphakathi kwimibhobho yokungena kunye nokuphindaphinda. Ngokuhamba kwexesha lo maleko unokwakheka kwaye udaka olungqindilili lunokuqokelelana.
Oku kuye kwenziwa mandundu kukuqaliswa kwenkqubo ye-exhaust gas recirculation (EGR) kwiimoto zale mihla. Umphunga we-oyile ungaxuba kunye nerhasi yokukhupha ejikelezisiweyo kwakhona kunye nomsizi othi emva koko wakhe phezu komthamo wokuthatha kunye neevalvu njalo njalo. Iya kuthi ke iqalise ukuvala umzimba we-throttle, i-swirl flaps, okanye iivalvu zokungena kwii-injini ezitofwe ngokuthe ngqo.
Ukuba ne-buildup ye-sludge kunokubangela ukusebenza okuphantsi ngenxa yempembelelo yokunciphisa ukuhamba komoya kwi-injini. Ukuba i-buildup iba ngokugqithisileyo kumzimba we-throttle inokubangela ukungahambi kakuhle njengoko inokuthintela ukuhamba komoya ngelixa i-throttle plate ivaliwe.
Ukufaka itanki yokubambisa (i-can) kuya kunciphisa ubungakanani bomphunga we-oyile ofikelela kwindawo yokungena kunye negumbi lokutsha. Ngaphandle komphunga we-oyile i-soot evela kwivalve ye-EGR ayisayi kugquma kakhulu ekuthatheni okuya kugcina ukuthathwa kungavaleki.