Automobile radiator is an important component in automobile cooling system. Function, the main role is to work in the process of the engine generated a lot of heat to release to ensure that the engine in the appropriate temperature range. If there is no radiator, the engine temperature will rise rapidly, resulting in engine damage, affecting the normal operation of the car. The utility model is composed of a water inlet chamber, a water outlet chamber, a radiator core, etc. . 1. Inlet and outlet: a pipe used to connect the cooling system so that cooling fluid flows into and out of the radiator. 2. Radiator Core: is the core part of the radiator, by many small heat pipe and heat sink composition. The cooling liquid flows in the heat pipe, and the heat is exchanged with the air through the heat sink, and the heat is distributed to the air. Working principle, when the engine running, the cooling fluid in the engine under the role of the pump in the internal circulation of the engine flow, absorb the heat generated by the engine. Then, the hot coolant flow into the radiator, through the radiator core and the air for heat exchange, cooling fluid temperature drop, and then flow back to the engine to continue to absorb heat, so cycle back and forth to maintain the engine temperature stability. Type 1. Air-cooled radiator: through the air flow through the radiator to cool, simple structure, but the cooling effect is relatively poor, generally used for small cars or motorcycles. 2. Water-cooled radiator: the use of cooling fluid in the radiator core flow and air for heat exchange to cool, cooling effect is good, is now widely used in the automobile type.