Lub cav yog lub zog hloov khoom siv. Nws lub luag haujlwm tseem ceeb yog hloov pauv lwm hom zog rau hauv lub zog siv tshuab. Tshwj xeeb:
Cov txheej txheem hloov hluav taws xob: hluav taws xob hluav taws xob hloov mus rau hauv thermal zog los ntawm kev sib txuas ntawm cov kua lossis roj gaseous; lub zog thermal no ua rau lub zog rov ua haujlwm ntawm lub piston; lub crank- txuas pas nrig mechanism ces hloov lub piston txoj kab tawm mus rau hauv kev sib hloov ntawm lub crankshaft, thaum kawg outputting mechanical zog.
Cov hom hluav taws xob siv tau: Ntxiv rau cov tshuaj siv hluav taws xob ntawm cov roj, qee lub cav kuj tseem tuaj yeem hloov hluav taws xob ncaj qha mus rau hauv lub tshuab hluav taws xob kom tau raws li qhov xav tau ntawm lub zog hauv ntau yam xwm txheej.
