Patent ID: 8276651

Claim:
A cooling system for a vehicle, comprising: a heat exchanger in which a condenser ( 200 ) comprising a plurality of tubes ( 112 , 220 ) which are parallely disposed in an air blow direction so as to be apart from each other at regular intervals; a pair of tanks ( 210 ) which are disposed at both sides of the plurality of tubes ( 112 , 220 ) and respectively divided by a baffle ( 240 ) into two independent spaces through which refrigerant and oil are respectively flowed; and fins ( 113 , 230 ) which are interposed between the tubes ( 112 , 220 ) so as to increase a heat transfer surface area to air which passes between the tubes ( 112 , 220 ), and in which a condenser ( 200 ) comprised of portions ( 210 B, 220 , 230 ) through which the refrigerant is flowed is integrally formed with a first oil cooler ( 110 ) comprised of portions ( 210 A, 112 , 113 ) through which the oil is flowed; a radiator ( 300 ) which comprises a plurality of radiator tubes ( 320 ) which are parallely disposed in an air blow direction so as to be apart from each other at regular intervals; a pair of radiator tanks ( 310 ) which are disposed at both sides of the plurality of radiator tubes ( 320 ) and through which cooling water is flowed; and radiator fins ( 330 ) which are interposed between the radiator tubes ( 320 ) so as to increase the heat transfer surface area to air which passes between the radiator tubes ( 320 ), and which is positioned at a down stream of the condenser ( 200 ) in the air blow direction; and a second oil cooler ( 120 ) which is provided in one of the radiator tanks ( 310 ) of the radiator ( 300 ), wherein, when a multiplication of a hydraulic diameter (D hc ) of the condenser ( 200 ) and a hydraulic diameter (D ho ) of the oil cooler ( 110 ) is in an extent of 0.4 mm 2 ≦(D ho ×D hc )≦0.8 mm 2 , the second oil cooler ( 120 ) is a hollow pipe type oil cooler ( 120 A) formed into a single pipe.