Marine vessel noise attenuating structure

Details Marine vessel noise attenuating structure Marine vessel noise attenuating structure

F - Mech Eng,Light,Heat,Weapons

01

N

172/22

F01N 1/00 (2006.01) B63H 21/32 (2006.01) F01D 25/30 (2006.01) F02C 6/20 (2006.01) F02C 7/24 (2006.01)

Patent

CA 1096312

ABSTRACT The exhaust or the inlet duct of a marine gas turbine engine power plant installation comprises a porous duct, a plurality of circumferentially arranged non-porous channel members attached to and axially spaced along the porous duct, the channel members and the porous duct together defining a plurality of annular noise attenuating cells, and at least one layer of heat insulating material surrounding the channel members, the insulating material being contained with a cover and attached to the porous duct.

318410

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