초록 ▼

Described is a system to deliver fluid to a fuel cell. The system includes a source of fluid, a fuel cell and a fluid delivery device in fluid communication therewith. The delivery device includes a pump having a reciprocating piston for drawing fluid from the source, pressurizing the fluid and deli

Described is a system to deliver fluid to a fuel cell. The system includes a source of fluid, a fuel cell and a fluid delivery device in fluid communication therewith. The delivery device includes a pump having a reciprocating piston 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 in fluid communication with an outlet of the pump. The reformer system includes a vaporizer 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.

대표청구항 ▼

[ I claim:] [1.]1. An electrical power generating system for use in a vehicle, comprising:a source of fuel;a source of liquid;a fuel cell; anda first pump in fluid communication between the fuel source and the fuel cell, the first pump including (i) a reciprocating piston for drawing fuel from its s

[ I claim:] [1.]1. An electrical power generating system for use in a vehicle, comprising:a source of fuel;a source of liquid;a fuel cell; anda first pump in fluid communication between the fuel source and the fuel cell, the first pump including (i) a reciprocating piston for drawing fuel from its source and delivering the fuel to the fuel cell, (ii) an inlet check valve in fluid communication between the fuel source and the first pump to prevent backflow from the first pump and (iii) an outlet check valve in fluid communication between the first pump and the fuel cell to prevent backflow to the first pump; anda second pump in fluid communication between the liquid source and the fuel cell, the second pump including (i) a reciprocating piston for drawing liquid from its source and delivering the liquid to the fuel cell, (ii) an inlet check valve in fluid communication between the liquid source and the second pump to prevent backflow from the second pump and (iii) an outlet check valve in fluid communication between the second pump and the fuel cell to prevent backflow to the second pump,whereby the flow rate of fuel and the flow rate of liquid is deliverable to the fuel cell in an accurate and reproducible manner.