Power plants – Combustion products used as motive fluid
Patent
1993-04-30
1994-10-04
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
60 3907, F02C 618
Patent
active
053514734
ABSTRACT:
A gas turbine engine includes a fan, fan bypass duct, compressor, core duct, and turbine including a clearance control system. The core duct includes a bleed valve, the fan bypass duct includes a bleed vent, and a bleed pipe is disposed in flow communication therebetween. A feed pipe is disposed in flow communication between the bleed pipe and the clearance control system. The apparatus is effective for practicing a method of bleeding a portion of compressed air from the core duct to the fan bypass duct during a first mode of operation, and diverting a portion of the bleed air from the bleed pipe into the feed pipe for flow to the clearance control system at a low flowrate during the first mode. During a second mode of operation, the method includes bleeding a portion of the fan air from the fan bypass duct and through the feed pipe to the clearance control system while discontinuing bleeding of the compressed air from the core duct. The bleed valve controls flow through the bleed pipe to both the fan bypass duct and the clearance control system for allowing flow therefrom during the first mode. And, during the second mode, the closed bleed valve allows bleeding of the fan air from the fan bypass duct automatically through the feed pipe to the clearance control system at the required increased flowrate.
REFERENCES:
patent: 3972349 (1976-08-01), Tumavicus
patent: 4069662 (1978-01-01), Redinger, Jr. et al.
patent: 4304093 (1981-08-01), Schulze
patent: 4329114 (1982-05-01), Johnson et al.
patent: 4391290 (1983-07-01), Williams
patent: 4463552 (1984-08-01), Monhardt et al.
patent: 4493184 (1985-01-01), Nikkanen et al.
patent: 4546605 (1985-10-01), Mortimer et al.
patent: 4715779 (1987-12-01), Suciu
patent: 4849895 (1989-07-01), Kervistin
patent: 5048288 (1991-09-01), Bessette et al.
Bertsch Richard A.
General Electric Company
Herkamp Nathan D.
Kocharov Michael I.
Squillaro Jerome C.
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