Gas-liquid separator and fuel cell system having the same

A gas-liquid separator adapted into a fuel cell system, comprising:

• a frame structure that comprises:
• a base having a plate shape, the base having a fluid introducing hole and a fluid discharging hole;
• a frame body facing the base, the frame body formed of a plurality of beams;
• and
• a plurality of frame supporters interposed between the base and the frame body;
• and
• a gas-liquid separation film enclosing the frame body and the frame supporters in a manner that the gas-liquid separation film and the base form an enclosed flow space inside the frame structure, the gas-liquid separation film including a gas permeable film.

A fuel cell system comprising:

• an electric generator to generate electricity through electrochemical reaction between hydrogen and oxygen;
• an oxidant feeder to supply oxygen to the electric generator;
• a recovering unit to recover unreacted fuel generated during the electrochemical reaction in the electric generator and to supply the unreacted fuel to a fuel feeder, the recovering unit comprising:
• a frame structure having at least one open side;
• and
• a gas-liquid separation film enclosing the at least one open side of the frame structure in a manner that the gas-liquid separation film and the frame structure form an enclosed flow space inside the frame structure, the gas-liquid separation film including a gas permeable film;
• and
• the fuel feeder to supply hydrogen containing fuel to the electric generator, the fuel feeder comprising:
• a fuel storage to store the hydrogen containing fuel;
• and
• a mixer connected to each of the fuel storage and the recovering unit, the mixer mixing the unreacted fuel supplied from the recovering unit with fuel supplied from the fuel storage.

A fuel cell system comprising:

• an electric generator to generate electricity by electrochemical reaction between hydrogen and oxygen;
• a fuel feeder to supply hydrogen containing fuel to the electric generator;
• an oxidant feeder to supply oxygen to the electric generator;
• and
• a recovering unit to recover unreacted fuel generated during the electrochemical reaction in the electric generator and to supply the unreacted fuel to the fuel feeder, the recovering unit comprising:
• a frame structure that comprises:
• a base having a plate shape, the base having a fluid introducing hole and a fluid discharging hole;
• a frame body facing the base, the frame body formed of a plurality of beams;
• and
• a plurality of frame supporters interposed between the base and the frame body;
• and
• a gas-liquid separation film enclosing the frame body and the frame supporters in a manner that the gas-liquid separation film and the base form an enclosed flow space inside the frame structure, the gas-liquid separation film including a gas permeable film.