Patent ID: 8029580

Claim:
A reformer for a fuel cell system comprising: a pipe assembly forming independent spaces through which fuel containing hydrogen passes, wherein the pipe assembly comprises: a first reaction assembly adapted to generate heat energy and a combusted gas by an oxidation reaction of the fuel, and having an injection hole for receiving the fuel and an exhaust hole for exhausting the combusted gas, a second reaction assembly having an exterior wall surrounding the first reaction assembly and adapted to generate hydrogen gas from the fuel through a reforming reaction using the heat energy; a first pass member coupled to the exhaust hole of the first reaction assembly for transferring the combusted gas carrying the heat energy from the first reaction assembly; and a second pass member for transferring the fuel to the second reaction assembly, wherein the first pass member and the second pass member are alternately wrapped around the exterior wall of the second reaction assembly in a coil configuration, and are directly adjacent to the exterior wall of the second reaction assembly, and wherein the first pass member and the second pass member are configured to transfer the heat energy of the combusted gas to the fuel prior to entering the second reaction assembly in a portion of the pipe assembly proximate and surrounding the exterior wall of the second reaction assembly.