Patent ID: 6861166

Claim:
A fuel cell system, comprising: at least one fuel cell; starting from the air feed in an air section with a direction of flow, a first broadband silencer is arranged downstream; the air section downstream of the first broadband silencer is divided into a first partial section and a second partial section; a compressor is arranged downstream in the first partial section; a second broadband silencer is arranged downstream of the compressor and upstream of a cathode air supply of the at least one fuel cell; a third broadband silencer is arranged downstream of the at least one fuel cell and upstream of an expander; in the second partial section, downstream, a fourth broadband silencer is arrange upstream of a blower for supplying air to a catalytic burner; the catalytic burner is arranged downstream of the blower; the first and second partial sections are brought together again in a common air section downstream of the catalytic burner and downstream of the expander; and a fifth broadband silencer for insulating an outlet side of expander and blower is arranged in the common air section.