Automotive radiator is an indispensable and important part of the automotive water-cooled engine cooling system, which is developing in the direction of light weight, high efficiency and economy. Automotive radiator structure also continues to adapt to new developments.

The core of the tube radiator is composed of many thin cooling tubes and heat sinks, and most of the cooling tubes adopt a flat circular cross-section to reduce air resistance and increase the heat transfer area.

Radiator core should have sufficient flow area to allow the coolant through, but also should have sufficient air flow area, so that a sufficient amount of air through to take away the coolant heat transfer to the radiator. It must also have sufficient heat dissipation area to complete the heat exchange between the coolant, air and heat sink.

Tube and strip radiators are made of corrugated heat sinks and cooling tubes arranged in a welded pattern.

Compared with the tubular radiator, the tubular radiator in the same conditions, the cooling area can be increased by about 12%, in addition to the heat sink with the opening of the airflow disturbance similar to the louvered holes to destroy the flow of air on the surface of the heat sink adhesion layer to improve the ability to dissipate heat.