seliba sa valve

Seliba sa valve ke eng, 'me se sebetsa joang?

E ka 'na eaba u tseba hantle hore na metsi a phallang a sebetsa joang ho matlafatsa enjene ea koloi ea hau, empa liliba tsena li boetse li phetha karolo ea bohlokoa lefats'eng la boenjiniere ba metsing.

Hafeela liliba li khona ho boloka khatello e hlokahalang, li tla u thusa ho qoba ho hlōleha ha enjene ka tšohanyetso le ho senyeha. Ka bokhutšoanyane, li thusa ho boloka li-valve tsa hau li sebetsa hantle.

Empa ho feta moo.

Bala ho ithuta ka mathata a valve ea selemo e ka thusang ho thibela, ho ithuta ka mefuta e sa tšoaneng ea li-valve tsa selemo, le ho utloisisa mokhoa oa ho lemoha matšoao a tloaelehileng a bothata.

Li-valve spring li etsa eng?

Taba ea pele, a re tšohleng karolo eo seliba se e bapalang lefatšeng la leoatle.

Setsi sa li-valve se behoa ho pota-potile kutu ea valve 'me se ts'oaroe ke mohlokomeli. Mosebetsi oa eona o ka sehloohong ke ho laola terene eohle ea li-valve, ho etsa bonnete ba hore khatello e nepahetseng ea selemo e sebelisoa ka mokhoa o tsitsitseng ho thibela puisano ea valve.

Kaha ho putlama ha valve ho ka lebisa ho hloleheng ho felletseng ha enjine, ho lahleheloa ke matla, esita le ho hloleha ha valve, liliba tsena li etsa mosebetsi oa bohlokoa haholo.

Ho phaella moo, mohloli oa valve oa khatello o boetse o thusa ho thibela ho se lumellane ha valve kapa karohano pakeng tsa camshaft le terene ea valve e etsahalang ha lebelo la enjene le feta liliba tsa valve.

Liliba li thusa ho sireletsa li-axle, marako a li-cylinder, pistons le li-engine bearings ha li ntse li qobella li-valve ho koala ka ho feletseng ho fana ka tekanyo e hlokahalang ea khatello.

Li boetse li thusa ho thibela mathata ka li-hydraulic lifters ka ho sebetsa khahlano le khatello ea oli ka har'a piston e ka hare le ho thibela phahamiso ho nyoloha.

Mefuta ea li-valve springs

Feela joalokaha ho na le mefuta e mengata ea li-valve, ho na le likhetho tse ngata ha ho tluoa tabeng ea liliba tsa valve.

Li-conical springs li na le halofo e nyane ea holimo, ho bolelang hore boima bo fokolang bo fokotseha le boemo bo phahameng ba tlhaho.

Haeba u batla li-lifts tse phahameng tse tsamaisang boima ba 'mele hamolemo, khetha sepopo sa terata sa oval. Liliba tsa linotsi le tsona li loketse ho fokotsa boima ba 'mele le ho hasana, hape li molemo bakeng sa lienjineri tse phahameng tsa rpm.

Li-coil springs ke khetho e tloaelehileng ka ho fetisisa, empa hangata ha li hahe khatello e lekaneng ea ho khanna terene ea valve ea hau hantle.

Mathata a selemo sa valve?

Ho qoba koluoa, o hloka ho tsetela ka bobeli mehloling ea li-valve tsa boleng bo holimo 'me u ithute ho lemoha matšoao a pele a bothata ba selemo enjeneng ea hau.

Ho etsa sena, beha vacuum gauge holim'a enjene ebe u e bulela. Haeba tekanyo ea ho bala e ntse e fetoha ka potlako nako le nako ha u eketsa lebelo la enjene, u tla tseba hore mehloli ea li-valve e ka 'na ea hloka ho nkeloa sebaka.

Haeba u lula u tsamaisa enjene ea hau ho li-RPM tse phahameng, ho ka etsahala hore ebe seliba sa valve se chesitse, ho bolelang hore cylinder e tla fosa mollo ka linako tsohle.