| 主权项 |
1. A humidifier for fuel cell comprising:
a membrane housing provided with first and second ends; a bundle of hollow fiber membranes provided in an inner space of the membrane housing, wherein both ends of the hollow fiber membranes are respectively potted into the first and second ends of the membrane housing; a humidity retainer; a first cover mounted on the first end of the membrane housing, the first cover including an inlet for introducing a first gas of high-humidity into the inner space of the membrane housing; and a second cover mounted on the second end of the membrane housing, the second cover including an outlet for discharging the first gas used for humidification, from the inner space of the membrane housing, wherein the humidity retainer is formed of at least one of polyethylene and polypropylene and has a form capable of containing a large amount of moisture therein, the form being selected from the group consisting of sponge and braid, and wherein the humidity retainer of the sponge or braid form is disposed adjacent to the hollow fiber membranes in the inner space of the membrane housing such that the humidity retainer can increase humidity of a second gas flowing through inside the hollow fiber membranes. |
