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US 4,928,479 AGranted
Annular combustor with tangential cooling air injection
AssigneeSundstrand Corporation
InventorsJack R. Shekleton, Colin Rodgers, John P. Archibald
Life of this patent
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Abstract
The combustion dynamics and efficiency of a gas turbine having an annular combustor 26 provided with fuel injection nozzles 50 that inject fuel generally tangentially is improved by providing the walls 32, 34, 39 of the combustor 26 with cooling air film injectors 70, 86; 72, 88; 74, 90 at substantially equally angularly spaced locations about each such wall and which are oriented to generally tangentially inject a film-like air stream on the associated wall 32, 34, 39.
Claims9
A gas turbine comprising:
- a rotor including compressor blades and turbine blades;
- an inlet adjacent one side of said compressor blades;
- a diffuser adjacent the other side of said compressor blades;
- a nozzle adjacent said turbine blades for directing hot gasses at said turbine blades to cause rotation of said rotor;
- an annular combustor having radially inner and outer walls connected by a generally radially extending wall about said rotor and having an outlet connected to said nozzle and a primary combustion annulus defined by said walls remote from said outlet, a plurality of fuel injectors to said primary combustion annulus and being substantially equally angular spaced therearound and configured to inject fuel into said primary combustion annulus in a nominally tangential direction;
- and
- means associated with each of said walls for injecting a film-like stream of cooling air into said primary combustion annulus in a generally tangential direction.
4 more elements
A gas turbine comprising
- a rotor including compressor blades and turbine blades;
- an inlet adjacent one side of said compressor blades;
- a diffuser adjacent the other side of said compressor blades;
- a nozzle adjacent said turbine blades for directing hot gasses at said turbine blades to cause rotation of said rotor;
- and
2 more elements
Dependencies are inferred from the claim text.