Sisitemu yo kugihe ni igice cyingenzi cya gari ya moshi ya moteri kandi nikimwe mubintu byingenzi bituma umwuka uhumeka neza.

Imikorere yigihe cyamasoko ihwanye numukandara wigihe. Nigice cyingenzi cya sisitemu yo gukwirakwiza gaze. Ihujwe na crankshaft kandi ikorana nigipimo runaka cyo kohereza kugirango hamenyekane neza igihe cyo gufata nigihe cyo gusohora.

Uruhare rwibihe byigihe ni uko iyo moteri ikora, piston ikubita (hejuru no hepfo yimuka) valve ifungura no gufunga (igihe) ikurikirana (igihe), ihujwe n "igihe", burigihe ukomeza "guhuza" " Iruka.

Mugihe cyakazi cya moteri yimodoka, inzira enye zo gufata, kwikuramo, guturika, hamwe numuriro bikomeza kugaragara muri silinderi, kandi igihe cya buri ntambwe kigomba guhuzwa nimiterere yimiterere nu mwanya wa piston, kugirango ifate na lift ya Piston irambuye ihujwe hamwe, kandi amasoko yibihe bigira uruhare nk "ikiraro" muri moteri, yohereza ingufu mubice bihuye munsi yubushoferi bwa crankshaft.