Injini ya SOHC (single overhead camshaft) sagwiritsidwa ntchito kawirikawiri m'mitundu yodziwika bwino ya anthu osamuka pamsika, chifukwa liwiro lomwe limagwiritsidwa ntchito kwambiri panjinga zamoto ndi lalitali.

Mapangidwe a SOHC ndi osavuta kuposa a DOHC, koma ngakhale ali ndi camshaft imodzi yokha, imayenera kutumizidwa ku ma valve anayi kudzera m'manja awiri a valve rocker kuti athetse kutsegula ndi kutseka kwa ma valve.

ubwino:

Chifukwa chakuti pali camshaft imodzi yokha, yomwe imayendetsedwa mwachindunji ndi zida za nthawi, injiniyo imakhudzidwa kwambiri ndi kukana kwa kasinthasintha ka camshaft pamene liwiro likuwonjezeka, ndipo limatha kumaliza kutulutsa kwa gawo lotsika mofulumira.Mtengo wokonza ndi wotsika, kapangidwe kake ndi kosavuta, ndipo mafuta ndi otsika mtengo m'misewu yotsika kwambiri.

Zoyipa:

Pakuthamanga kwambiri, chifukwa cha kutha msinkhu kwa mkono wa valve rocker, pali zigawo zambiri zomwe zimabwereza zomwe zimapanga inertia.Choncho, kuwongolera kwa valve ya valve pa liwiro lalikulu kungakhale kopanda kukhazikika ndi kulondola, ndipo pangakhalenso kugwedezeka kosafunikira kapena phokoso.

DOHC

Monga dzina limatanthawuzira, DOHC mwachibadwa imayendetsa ma camshafts awiri.Chifukwa ndi ma camshaft awiri, ma camshaft amatha kuzungulira ndikusindikiza ma valve mwachindunji.Palibe sing'anga ya mkono wa rocker wa valve, koma pamafunika unyolo wautali kapena malamba kuti muyendetse.

ubwino:

Mwachidziwitso, kukhazikika ndi kulondola kwa mpweya wabwino wozungulira injini ndi bwino, zomwe zimathandiza kuti injiniyo ikhale yogwira ntchito kwambiri.Chifukwa chosowa zowonjezera zowonjezera komanso zofalitsa zofalitsa, kuwongolera kugwedezeka kuli bwino.Kugwiritsiridwa ntchito kwa makamera awiri odziyimira pawokha kumalola kugwiritsa ntchito chipinda choyaka chofanana ndi V, ndipo mbali ya valve ingakhalenso yosinthika pakupanga.Spark plug ikhoza kuyikidwa pakatikati pa chipinda choyaka moto, ndikupangitsa kuti pakhale chothandizira pakuyaka kwathunthu.

Zoyipa:

Chifukwa cha kufunikira koyendetsa makamera awiri, padzakhala kutayika kwa torque mumayendedwe otsika kwambiri a injini.Chifukwa cha zovuta zake, kukonza ndi kukonza ndalama ndi zovuta ndizokwera kuposa za SOHC.

M'mainjini akuluakulu osamuka, ma injini ambiri akugwiritsa ntchito DOHC chifukwa kapangidwe kake kamatha kuyendetsa bwino injini zazikulu zosunthira, ndipo mphamvu imodzi yamagetsi osunthika imakhalanso yamphamvu, ndipo chiŵerengero cha kutayika kwa ma torsion otsika chidzakhala chocheperako.

Mofanana ndi magalimoto, ngati magalimoto ang'onoang'ono apanyumba omwe ali ndi malo ochepa kwambiri amakhala ndi DOHC, ndi bwino kupondereza ndalama ndikuwongolera mtengo wake kusiyana ndi kugwiritsa ntchito SOHC mokhazikika kuti apititse patsogolo luso la wosuta.

Komabe, ziyenera kutsindika kuti magalimoto a DOHC sakhala ndi torque yochepa, ndipo magalimoto a SOHC sakhala ndi torque yamphamvu.Zimadalirabe zoikamo ikukonzekera zigawo zina injini.Zomangamanga ziwirizi zimangokhudza momwe injiniyo ingagwiritsire ntchito ndi chuma chamafuta ndi khalidwe pansi pazikhalidwe zina zogwirira ntchito.