Muaj ntau hom cav, uas tuaj yeem muab faib ua pawg hauv qab no:
Raws li cov khoom siv hluav taws xob sib txawv, lawv tuaj yeem muab faib ua diesel xyaw, roj av cav, hluav taws xob tsheb motors, thiab hybrid zog, thiab lwm yam.
Raws li kev ua haujlwm ntawm cov khoom noj khoom haus, lawv tuaj yeem muab faib ua ib txwm aspirated, turbocharged, supercharged, thiab ob npaug.
Raws li cov qauv sib txawv piston txav, lawv tuaj yeem muab faib ua reciprocating piston internal combustion engines thiab piston teb.
Raws li ntau hom kev sib txawv ntawm lub tog raj kheej, lawv tuaj yeem muab faib ua cov tshuab hauv kab, V-hom cav, W-hom cav, thiab cov cav tsis sib haum.
Raws li cov lej sib txawv, lawv tuaj yeem muab faib ua plaub-stroke nrog lub tshuab combustion thiab ob-stroke internal combustion engines.
Tsis tas li ntawd, muaj lwm yam kev faib tawm, xws li:
SOHC (ib leeg nyiaj siv ua haujlwm camshaft engine) thiab DOHC (ob chav nyiaj siv ua haujlwm camshaft engine), hom cav faib raws li tus naj npawb ntawm camshaft txoj haujlwm.
Turbocharging (Turbo), los ntawm cov pa tso pa tsav lub impeller los tsav lub twj tso kua mis, cua ntau xa mus rau hauv lub cav, yog li ua kom lub zog ntawm lub cav.
VTEC (Variable Valve Timing and Valve Lift Electronic Control System) thiab i-VTEC (Intelligent Variable Valve Timing and Lift System), tsim los ntawm Honda Motor, yog lub ntiaj teb thawj lub valve tswj qhov system uas tuaj yeem tswj tau lub valve qhib thiab kaw lub sijhawm thiab nqa. .
CVVT (Nruam Variable Valve Timing System) tswj qhov qhib thiab kaw ntawm lub valve txhua lub sijhawm raws li kev ua haujlwm tiag tiag ntawm lub cav, kom cov roj hlawv ntau dua.
