Hano hari umuyoboro wokunywa kuruhande rwumuyaga. Bigenda bite?
Uyu ni umuyoboro muri sisitemu yo guhumeka ya crankcase yongeye kuyobora gazi isohoka kugirango ifate umuriro. Moteri yimodoka ifite sisitemu yo guhumeka ku gahato, kandi iyo moteri ikora, gaze imwe izinjira muri crankcase ikoresheje impeta ya piston. Niba gaze nyinshi yinjiye mu gikarito, umuvuduko wikariso uziyongera, bizagira ingaruka kuri piston hasi, ariko kandi bigira ingaruka kumikorere ya moteri. Kubwibyo, birakenewe kunanura iyo myuka muri crankcase. Niba iyo myuka isohotse mu kirere mu buryo butaziguye, bizanduza ibidukikije, niyo mpamvu abashakashatsi bahimbye crankcase ku buryo bwo guhumeka. Crankcase sisitemu yo guhumeka ihindura gazi iva mukibanza ikinjira muburyo bwo gufata kugirango ishobore kongera kwinjira mucyumba cyaka. Hariho kandi igice cyingenzi cya sisitemu yo guhumeka, bita amavuta na gaze. Igice cya gaze yinjira muri crankcase ni gaze isohoka, naho igice ni imyuka ya peteroli. Gutandukanya amavuta na gaze ni ugutandukanya gaze isohoka hamwe na peteroli, ishobora kwirinda moteri yaka amavuta. Niba gutandukanya amavuta na gaze byacitse, bizatera amavuta ya peteroli kwinjira muri silinderi kugira uruhare mu gutwika, bizatera moteri gutwika amavuta, kandi bizanatuma kwiyongera kwa karuboni mu cyumba cyaka. Niba moteri yatwitse amavuta igihe kirekire, irashobora kwangiza ibyerekezo bitatu bya catalitiki.
