SERIES PROPRIETARY PEM FUEL

Brand	Owner	Address	Description
H2X	Hydrogenics Corporation	220 Admiral Boulevard Mississauga, Ontario L5T2N6 Canada	series of proprietary PEM fuel cell/electrolyzer stack designs covering a range of electrical power outputs and applications;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A single pump fuel cell system is provided that has multiple valves that have selective positioning to control fluidic flow throughout a fuel cell system. One of the valves provides for high and low concentration fuel dosing. Another valve or series of valves controls an unreacted fuel recirculation loop leading from the fuel cell. Another valve or series of valves control condensate collection by the fuel cell system, and allows the purging of the anode recirculation loop. Each of the valves is selectable between various positions to place the fuel cell system in a desired operating mode. A heat exchanger may also be employed to dissipate heat as desired out of the fuel cell system. A concentration sensor can also be employed to aid in achieving a desired fuel concentration within the fuel cell system.