Intonga yokudibanisa intongayenziwe ngamalungu amathathu: iqela lomzimba, iqela le-piston yokudibanisa intonga kunye neqela le-crankshaft flywheel. Intonga yokudibanisa i-crank yeyona ndawo iphambili eshukumayo ye-injini ukuqonda umjikelo wokusebenza kunye nokugqibezela uguqulo lwamandla.

Kwi-stroke yamandla, iguqula i-piston yamandla e-thermal eyenziwa ngokutshiswa kwe-fuel ibe yi-reciprocating motion kunye nokujikeleza kwe-crankshaft kumandla omatshini ukukhupha amandla; kwezinye izibetho, kuxhomekeke kwi-inertia ejikelezayo ye-crank kunye ne-flywheel kwaye iqhube ipiston phezulu nangaphantsi ngentonga yokudibanisa ukwenza iimeko zomsebenzi olandelayo.

Umsebenzi wesixhobo sokudibanisa intonga ye-crank kukubonelela ngendawo yokutsha, ukuguqula uxinzelelo olwandisiweyo lwerhasi engaphezulu kwepiston emva kokuba i-fuel itshiswe kwi-torque ye-crankshaft rotation, kunye namandla aqhubekayo aphumayo.

(1) Guqula uxinzelelo lwerhasi kwitorque yecrankshaft;

(2) Guqula intshukumo ebuyelanayo yepiston ibe yintshukumo ejikelezayo yecrankshaft;

(3) Guqula amandla okutsha kumphezulu wepiston kwi-torque ye-crankshaft ukukhupha amandla omatshini kumatshini osebenzayo.