(JP8213041-A)      The fuel cell arrangement has cells in a block (1), each with a fresh combustion gas inlet (13) at its anode on one side of the block and an outlet (14) for used gas on the opposite side and an input (15) for fresh cathode gas on another side with an outlet (16) for used cathode gas on the opposite side. A recycling device (7) heated by the fuel cell reaction recycles the fresh combustion gas. The recycling device has a recycling region with a catalyser with an input for the fresh combustion gas to be recycled and a recycled gas output connected to the anode input.    The recycling device is a heat exchanger arranged immediately after the fuel cell block in the exhaust gas flow. It has a second region thermally coupled to the recycling region. The second region carries the exhaust gas from the fuel cells to heat the recycling device.    ADVANTAGE -   High efficiency gas recycling is achieved without complex design or catalyser material contamination.    (US5725964-A)      The fuel cell arrangement has cells in a block (1), each with a fresh combustion gas inlet (13) at its anode on one side of the block and an outlet (14) for used gas on the opposite side and an input (15) for fresh cathode gas on another side with an outlet (16) for used cathode gas on the opposite side. A recycling device (7) heated by the fuel cell reaction recycles the fresh combustion gas. The recycling device has a recycling region with a catalyser with an input for the fresh combustion gas to be recycled and a recycled gas output connected to the anode input.    The recycling device is a heat exchanger arranged immediately after the fuel cell block in the exhaust gas flow. It has a second region thermally coupled to the recycling region. The second region carries the exhaust gas from the fuel cells to heat the recycling device.    ADVANTAGE -   High efficiency gas recycling is achieved without complex design or catalyser material contamination.    (NL1001519-C2)      The fuel cell arrangement has cells in a block (1), each with a fresh combustion gas inlet (13) at its anode on one side of the block and an outlet (14) for used gas on the opposite side and an input (15) for fresh cathode gas on another side with an outlet (16) for used cathode gas on the opposite side. A recycling device (7) heated by the fuel cell reaction recycles the fresh combustion gas. The recycling device has a recycling region with a catalyser with an input for the fresh combustion gas to be recycled and a recycled gas output connected to the anode input.    The recycling device is a heat exchanger arranged immediately after the fuel cell block in the exhaust gas flow. It has a second region thermally coupled to the recycling region. The second region carries the exhaust gas from the fuel cells to heat the recycling device.    ADVANTAGE -   High efficiency gas recycling is achieved without complex design or catalyser material contamination.