Patent ID: 7285351

Claim:
An apparatus for dilution of discharged fuel of a fuel cell comprising: a hydrogen gas inlet for guiding purged hydrogen gas coming from the fuel cell; a reservoir for storing the purged hydrogen gas guided through the inlet, wherein the reservoir has one or more walls and wherein the hydrogen gas inlet is formed in the wall of the reservoir; and a cathode exhaust gas pipe penetrating through the wall of the reservoir at a first location to form an exhaust gas inlet and penetrating through the wall at a second location to form an exhaust gas outlet, wherein the cathode exhaust gas pipe has holes formed therein that communicate with an inside of the reservoir, wherein the cathode exhaust gas pipe is adapted to carry cathode exhaust gas generated by the fuel cell, wherein the cathode exhaust gas pipe sucks the purged hydrogen gas, which is introduced through the inlet and stored in the reservoir, through the holes and discharges the purged hydrogen gas diluted by mixing with the cathode exhaust gas.