Inlet noise deflector

Details Inlet noise deflector Inlet noise deflector

1974-09-06

1976-03-30

Hix, L. T.

Acoustics

Auditorium

137 151, 415119, E04B 199

Patent

active

039468305

ABSTRACT:
An inlet duct for use with gas turbine engines or the like is provided with an axially upstream projecting deflector means to reduce noise propagation emanating within said duct. The deflector member has an essentially double arcuate contour of the lip in the axial direction which improves noise attenuation and inlet total pressure recovery. The contour is provided with at least one point of curvature inflection.

REFERENCES:
patent: 2970431 (1961-02-01), Harshman
patent: 3027710 (1962-04-01), Maytner
patent: 3545464 (1970-12-01), Brown

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