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US 2016/0111741 A1Published application
System and method for controlling voltage of fuel cell
AssigneeHydrogenics Corporation
InventorsNathaniel Ian JOOS, Paolo FORTE
Life of this patent
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Abstract
This specification describes a system and method for controlling the voltage produced by a fuel cell. The system involves providing a bypass line between an air exhaust from the fuel cell and an air inlet of the fuel cell. At least one controllable device is configured to allow the flow rate through the bypass line to be altered. A controller is provided to control the controllable device. The method involves varying the rate of recirculation of air exhaust to air inlet so as to provide a desired change in fuel cell voltage.
Claims16
An apparatus comprising,
- a) a fuel cell stack having an air inlet and an air exhaust;
- b) a recirculation line between the air exhaust from the fuel cell and the air inlet of the fuel cell stack;
- c) at least one controllable device configured to allow the flow rate through the bypass line to be altered;
- and,
- d) a controller operable to control the at least one controllable device.
2 more elements
A method comprising,
- a) providing a fuel cell stack having an air inlet and an air exhaust and a recirculation line between the air exhaust from the fuel cell and the an air inlet of the fuel cell;
- and,
- b) recirculating a portion of the air exhausted through the air exhaust to the air inlet though the recirculation line.
Dependencies are inferred from the claim text.