SOUND ABSORBER, SOUND ABSORBER ASSEMBLY AND AN ENGINE WITH A SOUND ABSORBER ASSEMBLY

摘要

A sound absorber comprising a base body and a tongue (24). The base body has a bottom plate, a wall enclosing the bottom plate and an opening enabling the entry of air into the base body. The tongue has a fixed end, a free end and a central portion disposed between the fixed and the free end. The free end of the tongue is spaced from the wall and the bottom plate, and the central portion of the tongue is disposed to extend at least partially straight along a width direction. Furthermore, a sound absorber assembly can include at least two sound absorbers, and an engine, in particular, for an aircraft, comprising such a sound absorber and/or such a sound absorber assembly.

主权项

1. A sound absorber for an engine of an aircraft, the sound absorber comprising:
a base body having a bottom plate, a wall enclosing the bottom plate and an opening enabling entry of air into the base body; and a tongue having a fixed end connected to the wall, a free end and a central portion disposed between the fixed end and the free end; the tongue further having a longitudinal direction extending from the fixed end towards the free end, a width direction extending substantially perpendicularly to the longitudinal direction, and a transverse direction extending substantially perpendicularly to the longitudinal direction and substantially perpendicularly to the width direction, the tongue dividing a space of the base body into a partial space adjacent to the bottom plate and a partial space adjacent to the opening, the two partial spaces being connected to each other via a gap, the free end being disposed at a first distance from the wall in the transverse direction and at a second distance from the bottom plate in the longitudinal direction, such that the first and the second distances determine a size of the gap, and the central portion being configured to extend at least partially straight along the width direction.