Nooca korantada ee korantada hawo-mareenka waalka waa nooc ka mid ah waalka xakameyn kara socodka hawada aan joogtada ahayn ee dhuumaha, sidoo kale loo yaqaan valve socodka joogtada ah ee hawada, oo uu wado koronto-dhaliyaha turboborm wadista valve crankshaft wadista piston ficil celinta si loo xaqiijiyo nidaamka socodka . Ku habboon hawada, sidoo kale waxaa loo isticmaali karaa isticmaalka tuubooyinka biyaha. Si ballaaran loo isticmaalo dhirta daaweynta bulaacada, dhirta biyaha, mashaariicda leexinta iyo warbaahinta kale ee hawada, nidaamka shabakada tuubada biyaha, si loo hagaajiyo qulqulka dhexdhexaadka ah ee dhuumaha, socodka iyo hagaajinta cadaadiska shabakada tuubada.
