Pic. 33. Radiator and electric fan:
1 - radiator; 2 - sensor for turning on the electric fan; 3 - electric motor; 4 - casing; 5 - impeller; 6 - rubber cushion; 7 - drain plug.
The core of the radiator consists of aluminum tubes and aluminum cooling plates, it is attached to plastic tanks and sealed with rubber gaskets. To increase the efficiency of the radiator, the cooling plates are stamped with a notch that causes turbulent air to move through the radiator. The radiator is made two-way with a horizontal partition in the left tank, as a result of which the liquid passes through the upper tubes into the right tank, and then through the lower tubes it enters the lower cavity of the left tank.
The exclusion of soldering from the technological process and the use of aluminum reduced the labor intensity of manufacturing the radiator, and also significantly reduced the weight.
The radiator does not have a filler neck, the upper branch pipe of the left tank is connected by a hose to the expansion tank. The left radiator tank is also equipped with inlet and outlet pipes. The right tank of the radiator has a drain plug 7 and a sensor 2 for turning off the electric fan.
The radiator is mounted on three rubber pads 6: two at the bottom are inserted into the holes in the cross member of the front end of the body, one at the top is pressed against the plate with two nuts. Rubber gaskets between the core and tanks, as well as rubber bearing pads, make the radiator insensitive to vibration loads.