Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1990-07-23
1991-10-22
Cohan, Alan
Fluid handling
Processes
Cleaning, repairing, or assembling
244 53B, B64D 3302
Patent
active
050586173
ABSTRACT:
A nacelle inlet for channeling airflow to a gas turbine engine having a longitudinal centerline axis includes an annular forward nacelle having a leading edge defining an inlet face for receiving the freestream airflow. A diffuser is disposed in flow communication with the inlet face, with the diffuser being defined about a droop axis inclined relative to the engine centerline axis. The forward nacelle includes a crown and a keel defining therebetween a scarf axis, with the keel extending axially forwardly of the crown so that the scarf axis forms an acute scarf angle greater than zero relative to a reference line perpendicular to the droop axis.
REFERENCES:
patent: 3765623 (1973-10-01), Donelson et al.
patent: 3946830 (1976-03-01), Kutney
patent: 4209149 (1980-06-01), Morris
patent: 4220171 (1980-09-01), Ruehr et al.
patent: 4722357 (1988-02-01), Wynosky
J. M. Abbott, "Aeroacoustic Performance of a Scoop Inlet", Oct. 3-5, 1977, NASA TM 73725, pp. 1-5, FIGS. 1-12.
J. M. Abbott et al., "Aerodynamic and Directional Acoustic Performance of a Scoop Inlet," Sep. 77, NASA Tech. Paper 1028, pp. 1-26.
J. M. Abbott, "Aerodynamic Performance of Scarf Inlets," Jan. 15-17, 1979, NASA TM 79055, pp. 1-14, FIGS. 1-10.
Crum Timothy S.
Stockman Norbert O.
Yates David E.
Cohan Alan
General Electric Company
Rafter John R.
Squillaro Jerome C.
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