Gulu la ndodo zolumikizira limapangidwa ndi ndodo yolumikizira, ndodo yolumikizira chivundikiro chamutu chachikulu, ndodo yolumikizira manja amutu wapamudzi, ndodo yolumikizira chitsamba chachikulu ndi bawuti wolumikizira (kapena wononga), ndi zina zambiri. mphamvu kuchokera ku pistoni, kugwedezeka kwake komwe ndi mphamvu yobwerezabwereza ya gulu la pisitoni.Ukulu ndi malangizo a mphamvuzi zimasinthidwa nthawi ndi nthawi.Chifukwa chake, ndodo yolumikizira imayikidwa kupsinjika, kupsinjika ndi katundu wina wosinthana.Mgwirizanowu uyenera kukhala ndi mphamvu zokwanira zotopa komanso kulimba kwapangidwe.Kutopa mphamvu sikokwanira, nthawi zambiri chifukwa kulumikiza ndodo thupi kapena kulumikiza ndodo bawuti kuthyoka, ndiyeno kutulutsa lonse makina kuwonongeka ngozi yaikulu.Ngati kuumako sikukukwanira, kumayambitsa kupindika kwa ndodo ndi kupindika kwa mutu waukulu wa ndodo yolumikizira, zomwe zimatsogolera kukupera pang'ono kwa pistoni, silinda, kubala ndi pini.
Thupi la ndodo yolumikizira limapangidwa ndi magawo atatu, ndipo gawo lolumikizidwa ndi pistoni limatchedwa ndodo yolumikizira mutu wawung'ono;Gawo lolumikizidwa ndi crankshaft limatchedwa mutu wa ndodo, ndipo gawo la ndodo lomwe limalumikiza mutu waung'ono ndi mutu waukulu limatchedwa ndodo yolumikizira.
Pofuna kuchepetsa kuvala pakati pa ndodo yolumikizira ndi pistoni, chitsamba chamkuwa chokhala ndi mipanda yopyapyala chimakanikizidwa mu dzenje laling'ono lamutu.Boworani kapena mphero mumitu ing'onoing'ono ndi tchire kuti mvula ilowe m'malo okwerera piston.
Thupi la ndodo yolumikizira ndi ndodo yayitali, mphamvu yogwira ntchitoyo imakhalanso yayikulu, pofuna kupewa kupindika kwake, thupi la ndodo liyenera kukhala ndi kuuma kokwanira.Pachifukwa ichi, ndodo yolumikizira thupi la injini yamagalimoto nthawi zambiri imatenga gawo lofanana ndi 1.Gawo lokhala ndi mawonekedwe a 1 limatha kuchepetsa misa pansi pazovuta komanso mphamvu zokwanira.Gawo lopangidwa ndi H limagwiritsidwa ntchito ngati injini yamphamvu kwambiri.Mainjini ena amagwiritsa ntchito ndodo yolumikizira yokhala ndi mutu waung'ono kubaya mafuta kuti aziziziritsa pisitoni.Mabowo ayenera kubowoledwa motalika mu ndodo.Pofuna kupewa kupsinjika maganizo, thupi la ndodo yolumikizira ndi mutu wawung'ono ndi mutu waukulu zimagwirizanitsidwa ndi kusintha kosalala kwa arc yaikulu.
Kuti muchepetse kugwedezeka kwa injini, kusiyana kwakukulu kwa ndodo yolumikizira ya silinda iliyonse kuyenera kukhala kocheperako.Posonkhanitsa injini mu fakitale, gramu nthawi zambiri imatengedwa ngati gawo la kuyeza molingana ndi kulemera kwa mutu wapansi wa ndodo yolumikizira, ndipo gulu lomwelo la ndodo yolumikizira limasankhidwa pa injini yomweyo.
Pa injini yamtundu wa V, masilindala omwe ali kumanzere ndi kumanja amagawana pini yolumikizira, ndipo ndodo yolumikizira ili ndi mitundu itatu: ndodo yolumikizirana, ndodo yolumikizira mphanda ndi ndodo yayikulu komanso yothandizira.
