Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including heat exchanger for reaction chamber or reactants...
Reexamination Certificate
2005-05-07
2008-08-05
Neckel, Alexa (Department: 1795)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including heat exchanger for reaction chamber or reactants...
C422S177000, C422S211000, C422S198000, C422S198000, C422S186220, C422S186220, C422S129000, C048S061000
Reexamination Certificate
active
07407636
ABSTRACT:
There is provided a reformer for a fuel cell system, the reformer comprising: a reforming unit having a reaction substrate in which a catalyst layer is formed in a plurality of flow channels for allowing fuel to flow and for generating hydrogen through a reformation reaction of the fuel using thermal energy. When viewing a cross-section perpendicular to the flow direction of the flow channels, the reaction substrate defines each flow channel by a bottom portion and a pair of wall portions extending from the sides of the bottom portion, and a joint between the bottom portion and the wall portion is formed in a rounded shape. There is also provided a method of manufacturing a reaction substrate used for a reformer for a fuel cell system, the method comprising: (a) preparing a substrate; (b) anisotropically etching the upper surface of the substrate and forming a channel pattern of which a bottom portion and a wall portion are perpendicular to each other; (c) isotropically etching the channel pattern and forming a flow channel of which the joints between the bottom portion and the wall portions are rounded; (d) forming a support layer on the surface of the flow channel; and (e) forming a catalyst layer on the support layer.
REFERENCES:
patent: 6033634 (2000-03-01), Koga
patent: 2003/0022052 (2003-01-01), Kearl
Kim Jae-Jeong
Kim Ju-Yong
Kweon Ho-Jin
Kwon Oh-Joong
Christie Parker & Hale LLP
Handal Kaity
Neckel Alexa
Samsung SDI & Co., Ltd.
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