Fuel cell system and shutoff method

Details Fuel cell system and shutoff method Fuel cell system and shutoff method

2006-10-13

2011-11-01

Rhee, Jane (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

C429S428000, C429S429000, C429S433000, C429S442000

Reexamination Certificate

active

08048574

ABSTRACT:
A fuel cell system includes a fuel cell, an operation controller, a checking unit, a scavenging unit, an instructing unit, a temperature sensor, a humidifier and a humidification controller. The operation controller selects one of a normal operation mode and a low-temperature operation mode. The checking unit determines whether the fuel cell has been started up in the low-temperature operation mode. The instructing unit provides an instruction for a shutoff of electricity generation. When the scavenging unit conducts scavenging based on the checking unit determining that the fuel cell has been started in the low-temperature operation mode in response to an instruction for a shutoff of electricity generation and an actual temperature of the fuel cell is higher than a predetermined temperature, the humidification controller controls an amount of humidification according to the actual temperature.

REFERENCES:
patent: 2005/0221148 (2005-10-01), Goebel
patent: 2004-111196 (2004-04-01), None
patent: 2004-199988 (2004-07-01), None
patent: 2005-85578 (2005-03-01), None
Japanese Office Action dated Mar. 24, 2009, issued in corresponding Japanese Patent Application No. 2005-302241.

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