| 摘要 |
A release valve is disclosed which in one embodiment includes a housing having a passageway extending therethrough and defining an inlet and an outlet, and a membrane extending across the passageway between the inlet and the outlet. The membrane is operable to permit passage through the passageway of gas at a first pressure, inhibit passage through the passageway of liquid at the first pressure, and permit passage of liquid at a second pressure greater than the first pressure. The release valve may also include a check valve for inhibiting passage of gas from the outlet to the inlet. The release valve is suitably employed in fuel cell systems such as in a cooling system thereof.
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