RECIRCULATION FAN TURBOCHARGER ASSEMBLY AND FUEL CELL SYSTEM

A recirculation fan turbocharger assembly () recycles hydrogen and supplies air in a fuel cell system. The assembly () includes a fan (), a compressor (), and an electric drive () and/or a turbine (). The fan () has an impeller () which is designed to convey a hydrogen containing recycle stream () to a fuel cell unit (). The compressor () has a compressor wheel () which is designed to compress an air stream () for a fuel cell unit. The compressor wheel () and the impeller () are coupled to one another in a rotationally fixed manner. The electric drive () and/or a turbine () is/are designed to drive the impeller () and the compressor wheel () simultaneously.