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US 6,601,672 B2Granted
Double layer acoustic liner and a fluid pressurizing device and method utilizing same
AssigneeDresser-Rand Company
InventorZheji Liu
Life of this patent
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Abstract
This invention relates to a double layer acoustic liner for attenuating noise and consisting of a plurality of cells formed in a plate in a manner to form an array of resonators, and a fluid processing device and method incorporating same.
Claims24
A fluid pressurizing device comprising:
- a casing having an inlet, an outlet, and a plurality of walls defining a chamber between the inlet and the outlet;
- an impeller mounted in the chamber and adapted to rotate to flow fluid from the inlet, through the chamber, and to the outlet for discharge from the casing;
- a first plate mounted to one of the walls defining the chamber and having a plurality of through openings extending from one surface of the plate to another surface thereof;
- the one wall capping one end of the openings;
- and
- a second plate mounted to the first plate and having a plurality of through openings extending from one surface of the second plate to another surface thereof;
- the openings attenuating the acoustic energy generated in the chamber.
4 more elements
Dependencies are inferred from the claim text.