it blows air through the radiator when necessary

it is turned by wind force as the vehicle moves forward, and its rotation drives the water pump

it cools the engine by blowing air onto the cylinder block

it draws heat out of the engine component

radiation only

convention only

convection and radiation

conduction, convection and radiation

drain plug

water jacket

vacuum valve

pressure cap

prevent the coolant from boiling

allow the engine to warm up quickly

indicate the coolant temperature

pressurize the system to raise the boiling point

engine piston

engine cylinder

lubricating oil

jacket cooling water