Fuel cell-engine hybrid system

A fuel cell-engine hybrid system comprising:

• an electricity generating unit including a cathode and an anode interposing an electrolyte membrane therebetween;
• an engine unit connected to a rear end of the electricity generating unit and generating power by receiving the exhaust gas discharged from the anode;
• a cooling unit being disposed subsequent to the electricity generating unit to eliminate vapor of the exhaust gas to improve an ignition of the engine unit, the cooled exhaust gas being discharged from the anode and supplied to the engine unit, the cooled exhaust gas being the sole and main supply gas of the engine unit such that no additional gas is supplied;
• and
• a mixing unit mixing the exhaust gas transmitted from the cooling unit and external air or high pressure fluid and supplying the mixture to the engine unit,
• wherein the mixing unit is a static mixer forming a internal channel through which a mixture of the exhaust gas and air flows, and wherein
• the internal channel is formed of a plurality of twisted elements and non-twisted elements, each of the twisted elements is alternately disposed corresponding to each of the non-twisted elements.