Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2006-02-21
2006-02-21
Gartenberg, Ehud (Department: 3746)
Power plants
Combustion products used as motive fluid
Process
C060S728000, C060S806000
Reexamination Certificate
active
07000404
ABSTRACT:
The invention relates to a method of supplying cooling air to the hot portions of a turbojet that comprises, from upstream to downstream: a compressor; a diffuser; a combustion chamber; a distributor; and a turbine driving said compressor, in which method a flow of air is bled from the flow of air delivered by the compressor, the bled-off flow is cooled in a heat exchanger situated radially outside the combustion chamber, and is then directed radially inwards via the stationary blades of the distributor and used for cooling the moving wheel of the turbine, the method wherein the flow of cooling air is bled from the zone of the end of the combustion chamber that surrounds the diffuser, and wherein the stationary blades of the distributor are also cooled by a second flow of air bled from the diffuser.
REFERENCES:
patent: 4120150 (1978-10-01), Wakeman
patent: 4254618 (1981-03-01), Elovic
patent: 5581996 (1996-12-01), Koch et al.
patent: 5619855 (1997-04-01), Burrus
patent: 5918458 (1999-07-01), Coffinberry et al.
patent: 6065282 (2000-05-01), Fukue et al.
patent: 6250061 (2001-06-01), Orlando
patent: 6295803 (2001-10-01), Bancalari
patent: 6672072 (2004-01-01), Giffin, III
patent: 2 342 693 (2000-04-01), None
Jablonski Laurent
Palmisano Laurent
Gartenberg Ehud
Snecma Moteurs
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