Power plants – Reaction motor – Interrelated reaction motors
Patent
1996-11-22
2000-06-06
Kim, Ted
Power plants
Reaction motor
Interrelated reaction motors
602263, 60271, 23926519, 23926525, F02K 302, F02K 3075
Patent
active
060704071
ABSTRACT:
The fan duct of a ducted fan gas turbine engine is provided with a secondary duct at least partly within the downstream end of the primary duct. The secondary duct is provided with means such as flaps whereby the airflow therethrough may be varied to suit flight requirements of an associated aircraft, in a way which will control the maximum diameter of the free stream tube airflow at the intake of the engine, thus effectively reducing the frontal area of the fan duct, and therefor, drag.
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patent: 5261227 (1993-11-01), Giffin, III
Kim Ted
Rolls-Royce plc
Taltavull W. Warren
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