Motors used in car thermatic fans.

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anyone know type of technology these motors use, ie conventional brush motors or kind of brushless motor.
they rated @ 12v dc , draw anywhere upwards of 6a .
most fan motors induction types, thats not possible in  car.
what im trying figure out life of such motor , if has run continuouslly.
very little info on net these technology wise.

in opinion normal 12 dc brushed motors.
electrical radiator fans existed before brushless motors came available.

some photos factory show dc brushed motors : http://cndesheng.en.alibaba.com/product/492379560-0/radiator_cooling_fan_motor_24v_12v_dc_brush_cooling_fan_auto_radiator_cooling_fan_motor_parts_for_vw_1h0959455d.html

the fan taken apart:
http://www.youtube.com/watch?v=7750joch0t4


Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > Motors used in car thermatic fans.


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