Title:
LOW NOISE COMPRESSOR FOR GEARED GAS TURBINE ENGINE
Document Type and Number:
WIPO Patent Application WO/2014/186017
Kind Code:
A3
Abstract:
A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan, a compressor section having a low pressure compressor and a high pressure compressor, a combustor section, and a turbine section having a low pressure turbine, the low pressure turbine for driving the low pressure compressor and the fan; a gear reduction effecting a reduction in the speed of the fan relative to a speed of the low pressure turbine and the low pressure compressor; and at least one stage of the compressor section having a ratio of vanes to blades that is greater than or equal to 1.8. The corrected tip speed of the blades is greater than or equal to 480 ft/sec at an approach speed.
Inventors:
MORIN BRUCE L (US)
TOPOL DAVID A (US)
TOPOL DAVID A (US)
Application Number:
PCT/US2014/017056
Publication Date:
January 29, 2015
Filing Date:
February 19, 2014
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORP (US)
International Classes:
F02C7/045; F01D5/16; F01D17/00; F01D21/00; F02C9/16
Foreign References:
| US5478199A | 1995-12-26 | |||
| US8246292B1 | 2012-08-21 | |||
| US5169288A | 1992-12-08 | |||
| US20080022691A1 | 2008-01-31 | |||
| US20110123342A1 | 2011-05-26 |
Other References:
See also references of EP 2971658A4
Attorney, Agent or Firm:
COON, Benjamin J. et al. (Gaskey & Olds P.C./Pratt & Whitney,400 W. Maple, Suite 35, Birmingham MI, US)
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