| 摘要 |
A system to deliver fluid to a fuel cell (30). The system includes a source of fluid (12), a fuel cell (30) and a fluid delivery device (40) in fluid communication therewith. The delivery device includes a pump (42) having a reciprocating piston (48) for drawing fluid from the source, pressurizing the fluid and delivering the fluid to the fuel cell accurately and reproducibly. In a further aspect of the disclosure, there is included a reformer system (20) in fluid communication with an outlet of the pump. The reformer system includes a vaporizer (22) which converts the fluid into a gas thereby generating a back pressure with respect to the pump. The back pressure varies with fluid flow rate and the back pressure also has a random component. The pump accurately and reproducibly delivers the fluid to the vaporizer against such back pressure. |
