Radiator in vehicle

Abstract

A radiator in a vehicle may include an inlet header tank for introduction of cooling water, an outlet header tank for discharging the cooling water, a heat exchanger unit having a plurality of tubes connected between opposite insides of the inlet header tank and the outlet header tank and heat dissipation fins for enhancing heat exchange between the cooling water flowing through the tubes and external air, an inlet and an outlet respectively formed substantially at centers of one side of the inlet header tank and one side of the outlet header tank in a height direct, and a filler neck connected to an engine and connected to the inlet by a main hose for introducing the cooling water from the engine to the inlet, and connected to one of the inlet header tank and the outlet header tank by a sub-hose which is separate from the main hose.

What is claimed is: 
     
         1 . A radiator in a vehicle, comprising:
 an inlet header tank for introduction of cooling water thereto;   an outlet header tank for discharging the cooling water therefrom;   a heat exchanger unit having a plurality of tubes connected between opposite insides of the inlet header tank and the outlet header tank and heat dissipation fins for enhancing heat exchange between the cooling water flowing through the tubes and external air;   an inlet and an outlet respectively formed substantially at centers of one side of the inlet header tank and one side of the outlet header tank in a height direction; and   a filler neck connected to an engine and connected to the inlet by a main hose for introducing the cooling water from the engine to the inlet, and connected to one of the inlet header tank and the outlet header tank by a sub-hose which is separate from the main hose.   
     
     
         2 . The radiator in a vehicle of  claim 1 , wherein the filler neck separates bubbles from the cooling water introduced thereto from the engine, and introduces the cooling water having the bubbles removed therefrom to the main hose and a portion of the cooling water containing the bubbles to the sub-hose. 
     
     
         3 . The radiator in a vehicle of  claim 1 , wherein the inlet and the outlet are arranged substantially on the same line that connects centers of the sides of the inlet header tank and the outlet header tank. 
     
     
         4 . The radiator in a vehicle of  claim 1 , wherein the filler neck is arranged between the engine and the inlet header tank, and separate from the inlet header tank and connects the engine and the inlet header tank for flowing the cooling water. 
     
     
         5 . The radiator in a vehicle of  claim 1 , wherein the main hose has one end connected to a lower side of the filler neck, and the other end connected to the inlet. 
     
     
         6 . The radiator in a vehicle of  claim 1 , wherein the sub-hose has one end connected to one side of an upper side of the filler neck. 
     
     
         7 . The radiator in a vehicle of  claim 1 , wherein the filler neck is connected to a reserve tank for discharging the bubbles separated from the cooling water within the filler neck to the reserve tank. 
     
     
         8 . The radiator in a vehicle of  claim 1 , wherein the filler neck includes:
 an inlet port formed on one side of an upper side for introduction of the cooling water from the engine thereto;   an outlet port formed on a lower side thereof and having the main hose connected thereto;   a sub-outlet port formed on the other side of the upper side opposite to the inlet port and having the sub-hose connected thereto; and   a bubble outlet port formed on one side of an upper end to which a cap is mounted and connected to the reserve tank.   
     
     
         9 . The radiator in a vehicle of  claim 1 , wherein the sub-hose is connected to a sub-inlet formed in the inlet header tank and at a position spaced upward from the inlet. 
     
     
         10 . The radiator in a vehicle of  claim 1 , wherein the sub-hose is connected to a sub-inlet formed in the outlet header tank and at a position spaced upward from the outlet.