초록 ▼

A power generator has a hydrogen producing fuel and a fuel cell having a proton exchange membrane separating the hydrogen producing fuel from ambient. A valve is disposed between the fuel cell and ambient such that water is controllably prevented from entering or leaving the fuel cell by actuation o

A power generator has a hydrogen producing fuel and a fuel cell having a proton exchange membrane separating the hydrogen producing fuel from ambient. A valve is disposed between the fuel cell and ambient such that water is controllably prevented from entering or leaving the fuel cell by actuation of the valve. In one embodiment, multiple fuel cells are arranged in a circle around the fuel, and the valve is a rotatable ring shaped gate valve having multiple openings corresponding to the fuel cells.

대표청구항 ▼

The invention claimed is: 1. A power generator comprising:a hydrogen producing fuel;a fuel cell having a cathode, proton exchange member, and an anode positioned between the fuel and ambient;a pressure regulated valve disposed at a cavity extending from a membrane bordering the hydrogen producing fu

The invention claimed is: 1. A power generator comprising:a hydrogen producing fuel;a fuel cell having a cathode, proton exchange member, and an anode positioned between the fuel and ambient;a pressure regulated valve disposed at a cavity extending from a membrane bordering the hydrogen producing fuel to the fuel cell, the pressure regulated valve to regulate exposure of the hydrogen producing fuel to water vapor from the fuel cell when pressure between the hydrogen producing fuel and fuel cell is below a predetermined level; anda second valve positioned, in a single passage configured for both inlet and outlet, between ambient and the cathode of the fuel cell, wherein a geometry of the single passage is proportioned to deter diffusive water loss and thereby form a water retention zone at the cathode of the fuel cell.