Multi-degree of freedom resonator array

Patent metadata

Field	Value
Publication number	US-8955643-B2
Application number	US-201214111820-A
Country	US
Kind code	B2
Filing date	Mar 29, 2012
Priority date	Apr 20, 2011
Publication date	Feb 17, 2015
Grant date	Feb 17, 2015

Abstract

Apparatus and methods for attenuating noise, vibration, and/or acoustic energy in a turbomachine. The apparatus includes a first base plate having first base plate perforations defined therethrough. The apparatus also includes first and second spacers each extending from the first base plate, being spaced apart from each other, and defining a first channel therebetween. The apparatus further includes a first insert disposed in the first channel and having insert perforations defined therethrough, the first base plate, the first and second spacers, and the first insert at least partially defining a first acoustic chamber therebetween, wherein the base plate perforations and the insert perforations are in communication with the first acoustic chamber.

First claim

I claim:

1. An apparatus for attenuating noise and vibration, comprising:
a first base plate having first base plate perforations defined therethrough;
first and second spacers each extending from the first base plate, being spaced apart from each other, and defining a first channel therebetween;
a first insert disposed in the first channel and having first insert perforations defined therethrough, the first base plate, the first and second spacers, and the first insert at lea…

Assignees

• Liu Zheji
• Dresser Rand Co

Inventors

• Liu Zheji

Classifications

• F02C7/045 Primary

  Mechanical Engineering · mapped topic

• F04D29/665

  Mechanical Engineering · mapped topic

• G10K11/172

  Physics · mapped topic

• F04D29/441

  Mechanical Engineering · mapped topic

• F05D2250/52

  Mechanical Engineering · mapped topic