Sound damper for a flow duct, in particular for use in a turbine inlet casing

摘要

The silencer (15) has two adjacent rows of sound dampers (21) transverse to the flow direction (19). The spacing between the rows is at least four times, preferably at least six times, the spacing between two adjacent sound damping elements (23) in the same row. The sound damping elements in at least one row may have guide plates (25), in which case the last row is not necessary.