Patent ID: 6736238
Filing Date: 2004-05-18
Classification: F04D

Abstract:
A silencer for connection to the air intake of a turbo machine, the silencer comprising:a housing having an axis, an outlet aperture being defined at one axial end of the housing; a plurality of axially spaced annular noise attenuating baffles, each baffle having an outer circumference and an inner circumference defining a central aperture, the central apertures of each baffle collectively defining an axial outlet flow passage to said outlet aperture; the baffles defining a series of axially spaced generally annular partial flow passages such that air flowing through said silencer is initially split between said flow passages and then merges into the axial outlet passage; wherein each of the annular flow passages curves radially inwards from its outer to its inner circumference in a direction towards the axial outlet.