Kamshaft ndi gawo la injini ya pistoni. Ntchito yake ndikuwongolera kutsegulira ndi kutseka kwa valve. Ngakhale camshaft imazungulira pa theka la liwiro la crankshaft mu injini ya sitiroko zinayi (camshaft imazungulira pa liwiro lofanana ndi crankshaft mu injini ya sitiroko ziwiri), camshaft nthawi zambiri imazungulira pa liwiro lalikulu ndipo imafuna torque yambiri. . Chifukwa chake, mapangidwe a camshaft amafunikira mphamvu zambiri komanso zofunikira zothandizira. Nthawi zambiri amapangidwa ndi alloy apamwamba kwambiri kapena chitsulo cha alloy. Kapangidwe ka camshaft kamakhala ndi gawo lofunikira kwambiri pakupanga injini chifukwa lamulo loyendetsa ma valve limagwirizana ndi mphamvu ndi magwiridwe antchito a injini.
The camshaft imakhudzidwa ndi katundu wanthawi ndi nthawi. Kupsinjika kwa kulumikizana pakati pa CAM ndi turtet ndikwambiri, ndipo liwiro lotsetsereka limakhalanso lalitali kwambiri, kotero kuvala kwa malo ogwirira ntchito a CAM ndizovuta kwambiri. Poganizira izi, magazini ya camshaft ndi malo ogwirira ntchito a CAM akuyenera kukhala olondola kwambiri, olimba pang'ono komanso olimba mokwanira, komanso ayenera kukhala ndi kukana kuvala kwambiri komanso mafuta abwino.
Ma Camshafts nthawi zambiri amapangidwa kuchokera kuzitsulo zapamwamba kwambiri za carbon kapena alloy, koma amathanso kuponyedwa mu alloy kapena nodular cast iron. Malo ogwirira ntchito a magazini ndi CAM amapukutidwa pambuyo pa chithandizo cha kutentha
