Turbine inlet silencer
AssigneeSundstrand Corporation
InventorsJames C. Napier, Robert G. Thompson
Life of this patent
Estimating the term…
Abstract
In order to reduce noise transmission through the air inlet duct (16) of a turbine engine (10), the air inlet duct (16) provides a non-linear path defined by a bend (24) for air from a source, and the turbine engine (10) includes a sound attenuation assembly (26) in the form of a splitter dissipative silencer disposed near the bend (24) in the air inlet duct (16). More specifically, the turbine engine (10) is such that the splitter dissipative silencer (26) can be formed as a modular assembly (42) removably securable near the bend (24) in the air inlet duct (16) upstream of a radial compressor (12) for removal and/or replacement or availability as an optional component of the turbine engine (10).
Claims5
A modular sound attenuation assembly for an auxiliary power unit having an air inlet duct leading to a radial compressor, comprising:
- a frame including a pair of spaced apart end plates;
- a plurality of baffles extending between said end plates, each of said baffles having sound attenuation means associated therewith, said baffles being disposed in parallel, spaced apart relation;
- and
- means for removably securing said sound attenuation assembly to said auxiliary power unit by securing said frame within said air inlet duct, said sound attenuation assembly being removably secured such that said baffles are positioned generally perpendicular to the direction of flow of air through said air inlet duct from a source, said baffles each extending generally perpendicular to an axis of said radial compressor.
Dependencies are inferred from the claim text.