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US 12,573,643 B2Granted
Fuel cell system
AssigneeHonda Motor Co., Ltd.
InventorYuta Okabe
Life of this patent
Estimating the term…
Abstract
At low temperature, a temperature regulator regulates a flow rate of a coolant to the water-cooled intercooler such that the temperature of the oxygen-containing gas (supercharged air) supplied from the oxygen-containing gas supply machine to the oxygen-containing gas inlet of the fuel cell stack increases as the generated electric power by the fuel cell stack increases (characteristic in FIG. 2).
Claims9
A fuel cell system comprising:
- a fuel cell stack configured to generate electric power by an electrochemical reaction between a fuel gas and an oxygen-containing gas;
- an oxygen-containing gas supply machine configured to supply the oxygen-containing gas to the fuel cell stack;
- a temperature regulator configured to regulate a temperature of the oxygen-containing gas supplied by the oxygen-containing gas supply machine;
- an external temperature acquisition unit configured to acquire an external temperature of the fuel cell stack;
- a generated electric power acquisition unit configured to acquire generated electric power of the fuel cell stack;
- and
- a coolant supply machine configured to supply a coolant for temperature regulation to the fuel cell stack,
- wherein the temperature regulator includes:
- a liquid-cooled heat exchanger provided in a gas pipe through which the oxygen-containing gas output from the oxygen-containing gas supply machine is supplied to the fuel cell stack;
- a pipe through which a part of the coolant output from the coolant supply machine to the fuel cell stack flows to the liquid-cooled heat exchanger;
- and
- a flow rate regulator configured to regulate a flow rate of the coolant flowing through the pipe, and
- the temperature regulator regulates the temperature of the oxygen-containing gas in a manner that, in a case where the generated electric power is equal to or higher than a predetermined value, the temperature of the oxygen-containing gas becomes higher as the generated electric power increases.
10 more elements
A fuel cell system comprising:
- a fuel cell stack configured to generate electric power by an electrochemical reaction between a fuel gas and an oxygen-containing gas;
- an oxygen-containing gas supply machine configured to supply the oxygen-containing gas to the fuel cell stack;
- a temperature regulator configured to regulate a temperature of the oxygen-containing gas supplied by the oxygen-containing gas supply machine;
- an external temperature acquisition unit configured to acquire an external temperature of the fuel cell stack;
- and
- a generated electric power acquisition unit configured to acquire generated electric power of the fuel cell stack,
- wherein the temperature regulator regulates the temperature of the oxygen-containing gas in a manner that, in a case where the external temperature is lower than a predetermined temperature, the temperature of the oxygen-containing gas to be supplied to the fuel cell stack becomes higher as the generated electric power increases.
4 more elements
Dependencies are inferred from the claim text.