The crank connecting rod mechanisme entsoe ka likarolo tse tharo: sehlopha sa 'mele, sehlopha sa lithupa tsa piston le sehlopha sa crankshaft flywheel. The crank connecting rod mechanism ke karolo e ka sehloohong e tsamaeang ea enjene ho hlokomela potoloho ea ho sebetsa le ho phethela phetolo ea matla.

Ka matla a matla, e fetola piston ea matla a mocheso e hlahisoang ke ho chesoa ha mafura hore e be motsamao o iphetang le oa ho potoloha ha crankshaft hore e be matla a mochini ho hlahisa matla; ka lichapo tse ling, ho itšetlehile ka inertia ea ho potoloha ha crank le flywheel le ho khanna piston holimo le tlaase ka molamu o kopanyang ho Etsa maemo bakeng sa mosebetsi o latelang.

Mosebetsi oa mochini o kopanyang crank rod ke ho fana ka sebaka sa ho tuka, ho fetola khatello ea katoloso ea khase e holim'a piston ka mor'a hore mafura a chesoe ka har'a torque ea crankshaft rotation, le matla a tsoelang pele a tsoang.

(1) Fetola khatello ea khase hore e be torque ea crankshaft;

(2) Fetola motsamao o bilikang oa piston ho motsamao o potolohang oa crankshaft;

(3) Fetola matla a ho tuka ka holim'a piston ho torque ea crankshaft ho ntša matla a mochini mochining o sebetsang.