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The radiator plays a critical function in all internal combustion engines as it help keeps a vehicle from overheating. It is connected to several channels running through the engine and cylinder head, through which is pumped a liquid which is usually a mixture of water with ethylene glycol (antifreeze). The liquid then flows through a thermostat and back again to the radiator. As such, heat is conducted away from the engine parts, making the vehicle safe from overheating.

To keep the radiator, the fluid inside, and the engine in peak conditions, the radiator is typically mounted behind the vehicle's grille, as cold air is driven through it. There is also a system of valves installed to simultaneously operate a small radiator called the heater core inside the car. This small radiator serves to warm the vehicle's interior cabin.

A device located between the engine and the radiator called the thermostat is another key component of a vehicle's cooling system. The thermostat remains closed and restricts coolant flow until the engine reaches the thermostat's activation temperature. This enables the engine temperature to remain in the ideal operating range. The thermostat closes and allows heat to build up in the engine when the engine gets too cold and it opens and allows heat to be removed by the radiator when the engine becomes too warm.

The invention of the radiator is widely attributed to Karl Benz. Nowadays, some engines have an additional oil cooler which is a separate small radiator to cool the motor oil while most turbo-charged engines may even have an intercooler.

Radiator Articles

  • Important Facts You Need to Know About Radiator

    The radiator is one of the cooling components that prevent engine overheating. So, make sure your car radiator is properly maintained at all times.
    Is your engine radiating more heat than it should? Then there might be something wrong with your radiator, which as most of us know is the cooling system's main component. So if this part's inefficiency is starting to drive you up the wall with its unreliability, then it's time to start looking for the perfect car radiator replacement.
    As you drive, your engine's operating temperature gradually increases to as much as 1000 degrees Fahrenheit. During fuel combustion, the engine's temperature doubles, producing a tremendous amount of heat that if left uncontrolled, could wreak havoc to your engine and its surrounding components: overheating, or worse, total engine failure. Radiators prevent these engine problems by pumping a cooling liquid, known as the coolant, throughout the engine. The coolant absorbs excess heat from your engine and controls its temperature, thus preventing overheating. The coolant then makes its way back to the car radiator, and is cooled by a mechanical fan. When the coolant becomes cool enough to absorb more heat, it is once again pumped through your engine system.
    Given the extremely crucial task that the radiator performs in your car, it is only smart to keep it in tiptop shape. Once it gets damaged, replace this part immediately to avoid hassling engine problems. Install a reliable replacement in your engine cooling system as soon as possible.

  • Radiator: Just the Facts

    When it comes to cooling down your car's engine, no other part does it better than the radiator. It helps lower engine temperature through the simple process of heat exchange. As coolant flows through the engine, the fluid absorbs much of the engine block's heat. This keeps engine temperature at manageable levels, preventing the dangers of overheating.After taking heat from moving engine parts, the hot coolant returns to the radiator. The radiator is usually equipped with one to three rows of finned tubes that can hold heated coolant. The heat exchange process happens when air blown in through your vehicle's grille picks up heat from hot coolant, leaving the coolant at a lower temperature.The radiator's tubes are, however, thin and delicate. Front-end collisions can easily break these tubes, rendering the radiator useless. If you discover water dripping under your car, or you notice the engine's coolant level dropping unusually fast, then chances are good that the whole eadiator is busted.A replacement is probably due, but don't worry. Auto Parts Deal has the right stuff for you.

    • Prevents engine overheating

    • Designed to handle hot coolant

    • Fits perfectly and last longer than stock