| 摘要 |
A system for supplying air to multiple fuel cell stacks 11, whereby the air is arranged to pass through a plurality of fuel cells before emerging through an outlet 15c. At least one of the fuel cell stacks is provided with a flow-restrictor 52 downstream of the stack to restrict flow through the outlet. The flow-restrictors may be provided to multiple stacks which restrict air flow to different extents, such that the flow rate through each stack is uniform. The flow-restrictor may consist of a plate defining an orifice (53, fig 4). The extent of flow restriction may be obtained by providing orifices of different sizes, or alternatively by providing a plate with multiple orifices. |
