Qinisekisa iilinki ezi-3 ezityheli kwikhonkco lexesha. Faka ikhonkco lexesha kunye ne-crankshaft sprocket. Ikhonkco lokuqala elityheli lilungelelanisa uphawu lwexesha le-crankshaft sprocket. Qaphela: Kukho amakhonkco amathathu atyheli kwikhonkco lexesha. Iikhonkco ezimbini eziphuzi (kunye nokwahlukana kweekhonkco ezi-6) zihambelana namanqaku exesha lokuthatha kunye nokukhupha i-sprockets ye-camshaft.

Xa isantya se-injini sisihla, isilawuli sexesha levalvu eguquguqukayo siyehla, ikhonkco eliphezulu liyakhululeka, kwaye ikhonkco elisezantsi lisebenza kwi-exhaust cam ejikelezayo kunye nokutyhalela ezantsi komlawuli. Ngenxa yokuba i-exhaust camshaft ayikwazi ukujikeleza i-counterclockwise phantsi kwesenzo sebhanti lexesha le-crankshaft, i-camshaft yokuthatha ixhomekeke kwintlangano yamandla amabini: enye kukuba ukujikeleza okuqhelekileyo kwe-exhaust camshaft kuqhuba amandla okutsala kwekhonkco eliphantsi; enye I-Regulator ityhala ikhonkco kwaye idlulisele amandla okutsala kwi-exhaust cam. I-camshaft yokuthatha ijikeleza i-engile eyongezelelweyo θ clockwise, ekhawulezisa ukuvala i-valve yokungena, oko kukuthi, i-valve yokuthatha i-angle yokuvala kade iyancipha nge-θ degrees. Xa isantya sinyuka, umlawuli uphakama kwaye ikhonkco eliphantsi likhululekile. I-exhaust camshaft ijikeleza i-clockwise. Okokuqala, ikhonkco eliphantsi kufuneka liqiniswe ukuze libe ngumphetho oqinileyo ngaphambi kokuba i-camshaft yokuthatha ingaqhutyelwa ukujikeleza nge-exhaust camshaft. Kwinkqubo yekhonkco engezantsi ibe ikhululekile kwaye iqinile, i-exhaust camshaft iye yajikeleza nge-angle θ, ikhamera yokuthatha iqala ukuhamba, kwaye ukuvala ivalve yokungena kuyacotha.

Oku kulandelayo sisifundo sofakelo lwekhonkco lexesha:
1. Okokuqala lungelelanisa uphawu lwexesha kwi-camshaft sprocket kunye nophawu lwexesha kwikhava yokuthwala;
2. Jika i-crankshaft ukuze ipiston yesilinda enye ibe kwindawo efileyo ephezulu;
3. Faka ikhonkco lexesha ukwenzela ukuba uphawu lwexesha lwekhonkco luhambelane nomqondiso wexesha kwi-sprocket ye-camshaft;
4. Faka i-sprocket ye-oil pump drive ukwenzela ukuba uphawu lwexesha lwekhonkco luhambelane nomqondiso wexesha kwi-sprocket yempompo yeoli.