Gas turbine engine with variable geometry fan exit guide vane system

PG Smith, SS Ochs - US Patent 8,347,633, 2013 - Google Patents
A turbofan engine includes a variable geometry fan exit guide vane (FEGV) system having a
multiple of circumferentially spaced radially extending fan exit guide vanes. Rotation of the …

Gas turbine engine with noise attenuating variable area fan nozzle

J Gilson, D Cicon, OV Atassi - US Patent 8,973,364, 2015 - Google Patents
SUMMARY OF THE INVENTION A nacelle assembly for a high-bypass gas turbine engine
according to an exemplary aspect of the present invention includes: a variable area fan …

Gas turbine engine with partial inlet vane

H Yu, P Townsend - US Patent 10,378,554, 2019 - Google Patents
A turbofan engine including an axially extending inlet wall surrounding an inlet flow path. A
radial distance between the inlet wall and the inner wall adjacent the fan defines a …

Gas turbine engine including stator vanes having variable camber and stagger configurations at different circumferential positions

AB Parry - US Patent 7,444,802, 2008 - Google Patents
Within an intake for a gas turbine engine provision is pro vided through stator vanes 25, 45
in the stator whereby back pressure from a necessary obstruction34, 46 can be utilised to …

Airfoil acoustic impedance control

RA Reba, BL Morin, SA Morford, WK Lord - US Patent 7,607,287, 2009 - Google Patents
A noise control cassette for a gas turbine engine includes a perforated face sheet configured
for exposure to an airflow, a non-perforated backing sheet, a core arranged between the …

Gas turbine engine with low fan pressure ratio

PG Smith, SS Ochs, FM Schwarz - US Patent 8,459,035, 2013 - Google Patents
SUMMARY OF THE INVENTION A gas turbine engine according to an exemplary aspect of
the present disclosure includes a core nacelle defined about an 45 engine centerline axis, a …

Unducted thrust producing system architecture

DT Zatorski, J Hamel, A Breeze-Stringfellow - US Patent 10,704,410, 2020 - Google Patents
An unducted thrust producing system has a rotating element with an axis of rotation and a
stationary element. The rotating element includes a plurality of blades, and the stationary …

Vane assembly for an unducted thrust producing system

A Breeze-Stringfellow, DT Zatorski… - US Patent 10,669,881, 2020 - Google Patents
US10669881B2 - Vane assembly for an unducted thrust producing system - Google Patents
US10669881B2 - Vane assembly for an unducted thrust producing system - Google Patents …

Unducted thrust producing system

A Breeze-Stringfellow, SA Khalid… - US Patent …, 2019 - Google Patents
An unducted thrust producing system has a rotating element with an axis of rotation and a
stationary element. The rotating element includes a plurality of blades each having a blade …

Variable area fan nozzle cowl airfoil

FW Schwark, OV Atassi, WD Owen - US Patent 8,739,515, 2014 - Google Patents
BACKGROUND The present disclosure relates to a gas turbine engine, and more
particularly to a turbofan engine having a variable area fan nozzle (VAFN) with a VAFN cowl …