Title:
GAS LEAKAGE DETECTION DEVICE AND FUEL CELL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/082993
Kind Code:
A1
Abstract:
A gas leakage detection device capable of accurately detecting abnormality of a shutoff valve on the upstream side even if there is gas leakage on the downstream side. The gas leakage detection device is a device for detecting gas leakage of a fuel cell system having shutoff valves and has a fuel gas concentration detection means in a fuel gas flow path on the downstream side of each of the shutoff valves. Based on the fuel gas concentration detected by the fuel gas concentration detection means, the gas leakage detection device detects gas leakage caused by abnormality of the shutoff valve.
Inventors:
YOSHIDA NAOHIRO (JP)
Application Number:
PCT/JP2006/302105
Publication Date:
August 10, 2006
Filing Date:
February 01, 2006
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
YOSHIDA NAOHIRO (JP)
YOSHIDA NAOHIRO (JP)
International Classes:
H01M8/04; G01M3/00; G01M3/04
Foreign References:
| JP2003308868A | 2003-10-31 | |||
| JPH0217642U | 1990-02-05 | |||
| JP2004253259A | 2004-09-09 | |||
| JP2005025996A | 2005-01-27 | |||
| JPH08315847A | 1996-11-29 | |||
| JP2004192919A | 2004-07-08 | |||
| JP2005129392A | 2005-05-19 | |||
| JP2006066100A | 2006-03-09 |
Attorney, Agent or Firm:
Inaba, Yoshiyuki (23rd Floor Roppongi Hills Mori Tower, 6-10-1
Roppongi, Minato-k, Tokyo 23, JP)
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