Distributor for gas turbine silencers

Claim 1

The combination of a gas flow distributor and a sound silencer for muffling the vibrations and sounds of a noisy turbulent exhaust gas stream emitted from a combustion gas turbine, said flow distributor comprising an elongated chamber, closed by cylindrical walls on all sides and a wall at one end, having an open inlet for connecting to a gas turbine exhaust, said chamber being sized to accommodate a turbulently noisy flowing stream of combustion gas exhausted from said turbine, means for solidly coupling the open end of said flow distributor chamber to the exhaust emitted from said turbine, perforations passing through and disposed about the walls of said flow distributor in number, size and spacing graduated from lower to greater gas flow restriction from said open end inlet to the lateral perforation outlets to emit the gas stream passing through said flow distributor in substantially even radial non-turbulent flow therefrom, shielding means deflecting the exhaust gas stream emitted by said flow distributor in flow radially therefrom through a splitter type noisy sound muffling means mounted to receive and split said radial exhaust gas flow into smaller parallel streams and muffle the noisy sound emitted by each of said streams in flow over the surfaces thereof, said splitter type muffling means comprising spaced parallel porous sound absorbing elements.