Title:
FUEL CELL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2008/059851
Kind Code:
A1
Abstract:
A shutoff valve (40) provided on the entrance side and exit side of a fuel cell system
has a diaphragm (42). A valve closing-side pressure chamber (43) is provided
on the upper face side of the diaphragm (42), and a valve opening-side pressure
chamber (44) is provided on the lower face side of the diaphragm (42). With the
valve closing-side pressure chamber (43) of the shutoff valve (40) pressurized,
the pressure in the chamber (43) is maintained by ViS, ViC, and ViO in an electrically
non-conducted state. Also, the pressure in the valve opening-side pressure
chamber (44) of the shutoff valve (40) is maintained released. By this, force
acting in the direction of closing a valve body (41) acts on it through the diaphragm
(42), maintaining the shutoff valve (40) closed.
Inventors:
OSADA YASUHIRO (JP)
BONO TETSUYA (JP)
TAKESHITA MASAHIRO (JP)
BONO TETSUYA (JP)
TAKESHITA MASAHIRO (JP)
Application Number:
PCT/JP2007/072051
Publication Date:
May 22, 2008
Filing Date:
November 07, 2007
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
OSADA YASUHIRO (JP)
BONO TETSUYA (JP)
TAKESHITA MASAHIRO (JP)
OSADA YASUHIRO (JP)
BONO TETSUYA (JP)
TAKESHITA MASAHIRO (JP)
International Classes:
H01M8/04; B01J3/02; F16K31/122
Foreign References:
| JP2000003717A | 2000-01-07 | |||
| JPH0694155A | 1994-04-05 | |||
| JPH026834A | 1990-01-11 | |||
| JPS63151779A | 1988-06-24 | |||
| JP2005150090A | 2005-06-09 | |||
| JP2005190843A | 2005-07-14 | |||
| JP2006155927A | 2006-06-15 |
Attorney, Agent or Firm:
YOSHIDA, Kenji et al. (Kichijoji-honcho 1-chome Musashino-sh, Tokyo 04, JP)
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