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Patent Searching and Data


Title:
A GAS TURBINE ENGINE AND NACELLE NOISE ATTENUATION STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2014/028078
Kind Code:
A3
Abstract:
A nacelle structure for a gas turbine engine assembly includes a fan case, and inlet, and a noise attenuation device. The fan case is configured to be disposed about a fan section of the gas turbine engine, which fan section has a diameter D. The inlet is attached to the fan case and extends axially forward of the fan case. A hilite of the inlet is spaced a distance L from a region in which the fan section is configured to be disposed. A ratio L/D is less than about 0.6. The noise attenuation structure covers a portion of an inner surface of the fan case and the inlet.

Inventors:
GILSON JONATHAN (US)
MAY MOLLY M (US)
WELCH DAVID A (US)
SAWYERS-ABBOTT NIGEL DAVID (US)
Application Number:
US2013/037686
Publication Date:
April 10, 2014
Filing Date:
April 23, 2013
Export Citation:
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Assignee:
UNITED TECHNOLOGIES CORP (US)
International Classes:
F02C7/045; F02K1/34
Foreign References:
US20050082112A12005-04-21
US20090056306A12009-03-05
US5768778A1998-06-23
US5702231A1997-12-30
US20060011408A12006-01-19
Attorney, Agent or Firm:
SIRAGUSA, John, M. (Gaskey & Olds/Pratt & Whitneyc/o CPA Global,P.O. Box 5205, Minneapolis MN, US)
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