Apparatus and method for suppression of turbine engine noise.

摘要

A compact turbine engine exhaust gas noise suppressor has a housing (10) having a first chamber (30), a second chamber (32) having an outlet (46) and communicating with the first chamber through a transfer passage (34), and a third chamber (54) communicating with the first chamber (30) through a perforated dividing wall (56) and having a resonant sound (60) attenuator positioned therein. A sound absorbing member (44) is positioned in the second chamber (32) to create therein a serpentine flow path (70) extending between the transfer passage (34) and the outlet (46). The exhaust gas (12) into the first chamber (30) through a duct (72) into which ambient cooling air is educted, and then forcing the exhaust gas (12) outwardly through the serpentine flow path (70).