METHOD AND DEVICE FOR CLEANING A FUEL CELL COMPONENT BY MEANS OF COMPRESSED AIR, AND RAIL VEHICLE

A method for operating a fuel cell unit (20) for a rail vehicle (100) comprises providing a compressed air stream and providing a variable. The method further comprises supplying the compressed air stream through an intake line (2) into a fuel cell component (6, 16) of the fuel cell unit (20) and thereby cleaning the fuel cell component (6, 16) by means of the compressed air stream in dependence on the variable.