Title:
FUEL CELL SYSTEM, AND ITS CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2009/028340
Kind Code:
A1
Abstract:
Provided is a fuel cell system capable of stabilizing the power generating state
of a fuel cell after it was returned from an intermittent run to an ordinary run.
The fuel cell system comprises a fuel cell, a fuel gas line having a fuel gas feeding
passage for feeding the fuel gas fed from a fuel feed source, to the fuel cell, a
variable pressure regulating valve for variably regulating the pressure of
the gas to flow in the fuel gas feeding passage, and a purge valve for discharging
the gas from the fuel gas line. The fuel cell system discharges the impurities
in the fuel gas line to the outside through the purge valve after the fuel cell was
transferred from a temporary stop state to a power generating state. Further
comprised is control means for controlling the opening/closing actions of the
variable pressure regulating valve, in case the impurity quantity in the fuel
gas line in the temporary power generation stopping state increases over a predetermined
quantity, so that the pressure of the fuel gas to be fed to the fuel cell after the
transfer of the fuel cell from the temporary stop state to the power generating
state may exceed a predetermined standard value.
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Inventors:
ISHIBASHI MAKOTO (JP)
Application Number:
PCT/JP2008/064666
Publication Date:
March 05, 2009
Filing Date:
August 11, 2008
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
ISHIBASHI MAKOTO (JP)
ISHIBASHI MAKOTO (JP)
International Classes:
H01M8/04; H01M8/10
Foreign References:
JP2007165103A | 2007-06-28 | |||
JP2007031179A | 2007-02-08 | |||
JPH08255625A | 1996-10-01 | |||
JP2007188857A | 2007-07-26 | |||
JP2007184170A | 2007-07-19 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (23rd Floor Roppongi Hills Mori Tower, 6-10-1 Roppongi, Minato-k, Tokyo 23, JP)
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