I-camshaft iyingxenye yenjini ye-piston. Umsebenzi wayo ukulawula isenzo sokuvula nokuvala i-valve. Nakuba i-camshaft izungeza engxenyeni yejubane le-crankshaft enjinini enama-stroke amane (i-camshaft izungeza ngesivinini esifana nese-crankshaft enjinini enama-stroke amabili), i-camshaft ivamise ukujikeleza ngesivinini esikhulu futhi idinga i-torque eningi. . Ngakho-ke, umklamo we-camshaft udinga amandla aphezulu kanye nezidingo zokusekela. Ngokuvamile kwenziwa nge-alloy high noma i-alloy steel. Idizayini ye-camshaft idlala indima ebaluleke kakhulu ekwakhiweni kwenjini ngoba umthetho wokunyakaza kwamavalvu uhlobene namandla nezici zokusebenza kwenjini.
I-camshaft ingaphansi kwemithelela yezikhathi ezithile. Ingcindezi yokuxhumana phakathi kwe-CAM ne-turtet inkulu kakhulu, futhi isivinini sokushelela esihlobene siphezulu kakhulu, ngakho-ke ukugqokwa kwendawo yokusebenza ye-CAM kubi kakhulu. Uma kubhekwa lesi simo, ijenali ye-camshaft kanye nendawo yokusebenza ye-CAM kufanele ibe nokunemba okuphezulu kobukhulu, ukuhwaqaza okuncane nokuqina okwanele, kodwa futhi kufanele ibe nokumelana nokugqoka okuphezulu kanye nokugcotshwa okuhle.
Ama-Camshafts ajwayele ukwenziwa ngensimbi yekhwalithi ephezulu yekhabhoni noma i-alloy, kodwa futhi angaphonswa nge-alloy noma i-nodular cast iron. Indawo yokusebenza yejenali kanye ne-CAM ipholishwa ngemva kokwelashwa kokushisa
