Alexa of Otomotif Center

Within a week, alexa rank Otomotif Center changes in a very surprising and confusing, from 18 million increase to 3 million for a few days up and down continuously in the radius (18 million - 3 million) and this day changed to 1.7 million. Actually do not know what happened to alexa, why suddenly change every day, when postig normal visitor only and not many are still few.

I hope to continue to increase alexa, he he .. So fast alexanya high rank, if the pains alexa rank is still great value. I just tried to post and blogroll, add a link to external blogs in my friend. Do not forget, I learned in the blog-tutorial, that simple and clear, complete in various info about the new blog.

Automotive Center is a blog about the center of automotive knowledge, from the engine, electric engine and body, ECU (electronic control unit) and the various reviews and info about automotive news. We hope this blog into a blog about the study with automotive technology, information and interesting discussions with the automobile. Good luck always make automotive center.

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Electric Engine-Cooling Fans

Electric engine-cooling fans are used on all transversely and some longitudinally mounted engines. Small, permanent-magnet, high-torque motors are used for this application. They are able to move large amounts of air independent of engine speed. Conventional electric cooling fan circuits incorporate a relay and engine-coolant temperature switch.

When engine coolant temperature increases above 230*F or 100*C, the cooling fan switch closes to energize the relay coil and switch the cooling fan motor ON. The coil is also energized to switch the cooling fan motor ON any time the air conditioning unit is ON. On some vehicles the temperature-switch circuit is hot at all times, allowing the fan to continue to cool the engine compartment and the radiator coolant even if the ignition switch is OFF. For this reason, you should always disconnect the fan motor when working under the hood near it in case it comes on without warning.

Cooling fan motors are also controlled by on-board computer-based electronic control module. A temperature sensor provides the input information used by the computer to determine the exact coolant temperature. Based on this information and other instructions programmed into it, the computer outputs signal that switches the fan circuit ON and OFF.

One advantage of this type of control circuit is that the computer may be programmed to turn the fan OFF. Automatically when the car is traveling at speeds above approximately 35 mi/h. This puts less load on the alternator. The fan is not normally needed when the car travels at road speeds because of forced air flowing across the radiator.

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