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thermal and non-thermal


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  • 2 weeks later...

Fan clutch is the main auto parts when one talks about the temperature of the car. Fan clutch is really important to avoid any heat in the car. Since a driver drives the car in heat, the car is tend to produce heat in the system and fan clutch helps in maintaining the moderate temperature in the car. So fan clutches are of two types: One is thermal and second is non-thermal.

Thermal fan clutches works as per the temperature is the car. They are connected with thermostatic valve which helps in judging the temperature in the car. Let’s not go deep into the terms, I will explain you in simple words. There are coil springs in the engine which opens and closes as the temperature is the engine starts varying. Let’s say, if the engine is cold, the drain valve opens and the oil is sent back into the reservoir and also the speed of the fan goes down. And if the engine is hot, the drain valve contracts and inlet valve opens which increases the speed of the fan. So basically, thermal fan clutch works with the thermostatic valve in the engine system.

Non-thermal fan clutch is way cheaper and long lasting than thermal fan clutch. This works with the hydraulic pressure that increases/decreases with engine’s temperature. When the engine is too hot, the hydraulic pressure reaches to its highest point and thus increases the speed of the non-thermal fan clutch.

This is how the fan clutch works in engine, in simple words. Which is better if you ask, it’s off course thermal fan clutch because they are more accurate and quick. The speed of the fan is accurate per seconds in thermal fan clutch, but non-thermal fan clutch takes time to adjust with the temperature if the engine.

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