摘要 |
A fuel cell manifold arrangement includes a fuel cell stack and a manifold enclosure connected to and sealed to an inlet side of the fuel cell stack and defining with the stack a gas plenum for receiving a fuel gas for the fuel cell stack. A catalyst screen i s connected to the manifold enclosure for defining a gas passage for passing fuel gas and for containing a catalyst that is bounded by the screen. The manifold enclosure has a gas inlet for receiving fuel gas, the gas inlet communicating with the screen for passing fuel gas through the screen and past the catalyst. A plate in the manifold enclosure separates the catalyst from the plenum and heat insulation is on at least part of the manifold enclosure and on at least par t of the plate for insulating the manifold enclosure from the fuel cell stack and from an exterior of the manifold enclosure. A passage in the manifold enclosure connects the screen to the plenum for passing fuel gas from the catalyst to the plenum. |