Air inlet silencer for turbomachines

Patent metadata

Field	Value
Publication number	US-9309842-B2
Application number	US-201313761305-A
Country	US
Kind code	B2
Filing date	Feb 7, 2013
Priority date	Feb 7, 2013
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

An air inlet silencer for turbomachines is provided. In one embodiment, the air inlet silencer includes a body, and a plurality of concentric baffles coupled to and axially surrounding the body. In another embodiment, an air inlet system for a turbomachine includes the air inlet silencer, as discussed herein, positioned within a silencer housing. The air inlet system may also include a deflector positioned within the silencer housing adjacent the air inlet silencer. In a further embodiment, a turbomachine includes a turbine coupled to a compressor, and an air inlet system, as described herein, coupled to the compressor.

First claim

What is claimed is:

1. An air inlet silencer for a turbomachine, the air inlet silencer comprising:
a body;
a plurality of concentric baffles coupled to and axially surrounding the body; and
a transition component coupled to the body, the transition component for directing airflow to a compressor of the turbomachine and including:
a mounting cylinder concentrically coupled to the body; and
a plurality of support members coupled to the mounting cylinder.

2. The air inlet silencer of claim 1 , wherein each of the plurality of concentric baffles include a first end and a second end.

3. The air inlet silencer of claim 2 , wherein the first end of each of the plurality of concentric baffles includes a substantially rounded end.

4. The air inlet silencer of claim 2 , wherein the first ends of the plurality of concentric baffles are stepped relative to one another.

5. The air inlet silencer of claim 2 , wherein the second end of each of the plurality of concentric baffles includes a substantially tapered end.

6. The air inlet silencer of claim 1 , further comprising a casing surrounding the plurality of concentric baffles, the casing including an acoustic liner layer positioned on an interior surface of the casing.

7. The air inlet silencer of claim 1 , wherein each of the plurality of concentric baffles includes an acoustic liner layer.

8. The air inlet silencer of claim 1 , further comprising an air flow directing support coupled to the body, the air flow directing support including an inverted flared cone for directing air along the body.

9. The air inlet silencer of claim 8 , wherein the air flow directing support includes an acoustic liner layer.

10. The air inlet silencer of claim 1 , wherein each of the plurality of support members of the transition component engages a slot formed on each of the plurality of concentric baffles.

11. The air inlet silencer of claim 1 , further comprising a plurality of struts coupled to each of the plurality of concentric baffles.

12. The air inlet silencer of claim 1 , wherein the body and the plurality of concentric baffles are positioned within a silencer housing and adjacent a deflector of the turbomachine.

13. An air inlet system for a turbomachine, the air inlet system comprising:
an air inlet silencer positioned within a silencer housing, the air inlet silencer including:
a body;
a plurality of concentric baffles coupled to and axially surrounding the body; and
a transition component coupled to the body, the transition component for directing airflow to a compressor of the turbomachine and including:
a mounting cylinder concentrically coupled to the body; and
a plurality of support members coupled to the mounting cylinder; and

a deflector positioned within the silencer housing adjacent the air inlet silencer.

14. The air inlet system of claim 13 , wherein each of the plurality of concentric baffles of the air inlet silencer include:
a substantially rounded first end; and
a substantially tapered second end opposite the substantially rounded first end.

15. The air inlet system of claim 14 , wherein the substantially rounded first ends of the plurality of concentric baffles of the air inlet silencer are stepped relative to one another.

16. The air inlet system of claim 13 , wherein the air inlet silencer further includes a casing surrounding the plurality of concentric baffles, the casing positioned adjacent a sidewall of the silencer housing.

17. The air inlet system of claim 13 , wherein the air inlet silencer further includes an air flow directing support coupled to the body of the air inlet silencer and an endwall of the silencer housing, the air flow directing support including an inverted flared cone for directing air through the silencer housing.

18. A turbomachine comprising:
a compressor;
a turbine component coupled to the compressor via a rotor shaft; and
an air inlet system coupled to the compressor, the air inlet system including:
an air inlet silencer positioned within a silencer housing coupled to the compressor, the air inlet silencer including:
a body;
a plurality of concentric baffles coupled to and axially surrounding the body; and
a transition component coupled to the body, the transition component for directing airflow to a compressor of the turbomachine and including:
a mounting cylinder concentrically coupled to the body; and
a plurality of support members coupled to the mounting cylinder.

Assignees

• Gen Electric

Inventors

• Watson Eric Tracy
• Baten Robert Allen
• Marrs Doyle Jackson

Classifications

• F04D29/668

  damping or preventing mechanical vibrations · CPC title

• F02M35/12 Primary

  Intake silencers {; Sound modulation, transmission or amplification (intake silencers also used as exhaust silencer F01N13/007; filters for compressors F04B39/16)} · CPC title

• F04D29/664

  by means of sound absorbing material · CPC title

• F04D29/665

  by means of resonance chambers or interference · CPC title