Coolant reservoir tank for fuel cell vehicle

A coolant reservoir tank for a fuel cell vehicle, the coolant reservoir tank comprising:

• a reservoir housing having a predetermined volume of space;
• a cover for covering the top of the reservoir housing;
• and
• a plurality of ports detachably provided on at least one portion of the cover,
• wherein the reservoir housing and the cover are connected by a hinge type fastening member,
• a cap nut connected to a bottom portion of each of the ports;
• and
• at least one screw-type tube formed integrally with and protruding from a portion of the top surface of the cover and having a screw thread on the outer circumferential surface thereof, wherein each of the ports is connected to the cover by connection between the cap nut and the screw-type tube;
• wherein the hinge type fastening member includes a ring portion, a top portion of which is in the form of a hook, and a body, a top portion of which is hinge-connected to a portion of the outer surface of the reservoir housing such that a bottom portion thereof can be rotated upwardly and downwardly, and
• the cover is provided on a plurality of edges thereof with a locking groove in the form of so that the ring portion of the fastening member can be locked thereto,
• wherein the bottom surface of the reservoir housing is inclined toward the center of the bottom of the reservoir housing, a straight pipe is provided to extend vertically from the center, and a top portion of the straight pipe is to be inserted into one of the screw-type tubes provided on the cover such that coolant stored in the reservoir housing is introduced through a bottom portion of the straight pipe and moved upward by a pressure difference caused by a vacuum applied in a fuel cell.