Title:
GAS TURBINE ENGINE HAVING CONFIGURABLE BYPASS PASSAGE
Document Type and Number:
WIPO Patent Application WO/2014/133645
Kind Code:
A3
Abstract:
A gas turbine engine (50) is disclosed which includes a bypass passage (58) that in some embodiments is capable of being configured to act as a resonance space. The resonance space can be used to attenuate or accentuate a noise produced elsewhere. The bypass passage can be configured in a number of ways to form the resonance space. In one form the resonance space can attenuate a noise forward of the bypass duct. In another form the resonance space can. attenuate a noise aft of the bypass duct.
Inventors:
DUGE ROBERT T (US)
Application Number:
PCT/US2013/075286
Publication Date:
December 11, 2014
Filing Date:
December 16, 2013
Export Citation:
Assignee:
ROLLS ROYCE NAM TECH INC (US)
International Classes:
F02K3/02; F02C9/18; F02K3/06
Foreign References:
| GB2443418A | 2008-05-07 | |||
| GB2381832A | 2003-05-14 | |||
| US20040031258A1 | 2004-02-19 | |||
| US20060272887A1 | 2006-12-07 | |||
| US20120192543A1 | 2012-08-02 |
Attorney, Agent or Firm:
TALBOT, C. Scott et al. (1299 Pennsylvania AveSuite 70, Washington District of Columbia, US)
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