| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust and drain valve for a fuel cell with a simple constitution, without causing freezing fixation in seal rubber and a seat part by moisture at low temperatures. <P>SOLUTION: This exhaust and drain valve 1 for the fuel cell has the seal rubber 2 arranged in a valve drain device 10 arranged in a reaction gas supply exhaust flow passage of the fuel cell and opening-closing an exhaust port 5 by sliding by being held by a valve holder 4, and the seat part 3 abutting on the seal rubber 2 on the periphery of the exhaust port 5, and drains water and vents gas by separating the seal rubber 2 from the seat part 3, and prevents the freezing fixation by the moisture sticking to a surface of the seal rubber 2, by applying a water repellent coating agent 14 to a surface on the seat part 3 side of the seal rubber 2, and also prevents the freezing fixation by the moisture sticking to the surface of the seat part 3, by applying a hydrophilic coating agent 17 to a surface abutting on the seal rubber 2 of the seat part 3. <P>COPYRIGHT: (C)2008,JPO&INPIT |
