Invention Grant
- Patent Title: Geared gas turbine engine with reduced fan noise
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Application No.: US14964727Application Date: 2015-12-10
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Publication No.: US10107191B2Publication Date: 2018-10-23
- Inventor: Jonthan Gilson , Burce L. Morin , Ramons A. Reba , David A. Topol , Wesley K. Lord
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D9/04
- IPC: F01D9/04 ; F02C3/107 ; F02K3/06 ; F04D29/54 ; F04D29/66 ; F01D25/16

Abstract:
A fan section for a gas turbine engine according to an example of the present disclosure includes, among other things, a fan rotor having fan blades, and a plurality of fan exit guide vanes positioned downstream of the fan rotor. The fan rotor is configured to be driven through a gear reduction. A ratio of a number of fan exit guide vanes to a number of fan blades is defined. The fan exit guide vanes are provided with optimized sweep and optimized lean.
Public/Granted literature
- US20160090909A1 GEARED GAS TURBINE ENGINE WITH REDUCED FAN NOISE Public/Granted day:2016-03-31
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