Patent ID: 7258939

Claim:
A cooling system for a fuel cell vehicle comprising: a fuel gas flow field for supplying fuel gas to a fuel cell stack and exhausting the fuel gas from the fuel cell stack through a fuel gas accumulator, wherein a passage of the fuel gas flow field between the fuel cell stack and fuel gas accumulator comprises at least one first cooling pipe which has a plurality of fins on a circumferential surface thereof; an air flow field for supplying air to a fuel cell stack and exhausting the air from the fuel cell stack through an air accumulator, wherein a passage of the air flow field between the fuel cell stack and the air accumulator comprises at least one second cooling pipe which has a plurality of fins on a circumferential surface thereof; and a coolant circulation flow field for supplying coolant to the fuel cell stack, the fuel accumulator, and the air accumulator having a pressure generated by a pump, and cooling withdrawn coolant therefrom by heat transfer to a radiator, wherein a passage of the coolant circulation flow field consists of at least one third cooling pipe which has a plurality of fins on a circumferential surface thereof.