초록 ▼

A system is provided for aerodynamically coupling air flow from a centrifugal compressor to an axial combustor. The system includes a diffuser, a deswirl assembly, combustor inner and outer annular liners, a combustor dome, and a curved annular plate. The diffuser has an inlet that communicates with

A system is provided for aerodynamically coupling air flow from a centrifugal compressor to an axial combustor. The system includes a diffuser, a deswirl assembly, combustor inner and outer annular liners, a combustor dome, and a curved annular plate. The diffuser has an inlet that communicates with the centrifugal compressor, an outlet, and a flow path that extends radially outward. The deswirl assembly has an inlet that communicates with the diffuser outlet to receive air flowing in a radially outward direction, an outlet, and a flow path configured to redirect the air in a radially inward and axial direction through the deswirl assembly outlet at an angle toward a longitudinal axis. The curved annular plate is coupled to combustor inner and outer annular liner upstream ends to form a combustor subplenum therebetween and has a first opening and a second opening formed therein, the first opening aligned with the deswirl assembly outlet to receive air discharged therefrom.

대표청구항 ▼

We claim: 1. A system for aerodynamically coupling air flow from a centrifugal compressor to an axial combustor, the compressor and combustor disposed about a longitudinal axis, the system comprising: a diffuser having an inlet, an outlet and a flow path extending therebetween, the diffuser inlet i

We claim: 1. A system for aerodynamically coupling air flow from a centrifugal compressor to an axial combustor, the compressor and combustor disposed about a longitudinal axis, the system comprising: a diffuser having an inlet, an outlet and a flow path extending therebetween, the diffuser inlet in flow communication with the centrifugal compressor, and the diffuser flow path extending radially outward from the longitudinal axis; a deswirl assembly having an inlet, an outlet and a flow path extending therebetween, the deswirl assembly inlet in flow communication with the diffuser outlet to receive air flowing in a radially outward direction, and the deswirl assembly flow path configured to redirect the air in a radially inward and axial direction through the deswirl assembly outlet at an angle toward the longitudinal axis; a combustor inner annular liner disposed about the longitudinal axis, the inner annular liner having an upstream end; a combustor outer annular liner disposed concentric to the combustor inner annular liner and forming a combustion plenum therebetween, the outer annular liner having an upstream end; a combustor dome coupled to and extending between the combustor inner and outer annular liner upstream ends; and a curved annular plate coupled to the combustor inner and outer annular liner upstream ends to form a combustor subplenum therebetween, the curved annular plate having a first opening and a second opening formed therein, the first opening aligned with the deswirl assembly outlet to receive air discharged therefrom. 2. The system of claim 1, the system further comprising: a fuel injector extending through the curved annular plate second opening and disposed at least partially in the combustion plenum. 3. The system of claim 1, wherein the first and second openings have different shapes. 4. The system of claim 1, wherein the deswirl assembly flowpath is arcuate. 5. The system of claim 1, wherein the combustor dome includes an opening formed therethrough. 6. A gas turbine engine disposed about a longitudinal axis, the engine comprising: a centrifugal compressor comprising: a compressor housing; an impeller disposed in the compressor housing and configured to rotate about the longitudinal axis; and a shroud disposed around the impeller; a diffuser having an inlet, an outlet and a flow path extending therebetween, the diffuser inlet in flow communication with the centrifugal compressor, and the diffuser flow path extending radially outward from the longitudinal axis; a deswirl assembly having an inlet, an outlet and a flow path extending therebetween, the deswirl assembly inlet in flow communication with the diffuser outlet and configured to receive air flowing in a radially outward direction, and the deswirl assembly flow path curving from the deswirl assembly inlet to the deswirl assembly outlet and configured to redirect the air into a radially inward and axial direction through the deswirl assembly outlet at an angle toward the longitudinal axis; and a combustor coupled to the centrifugal compressor comprising: a combustor housing coupled to the compressor housing; a combustor inner annular liner disposed in the combustor housing about the longitudinal axis, the inner annular liner having an upstream end; a combustor outer annular liner disposed concentric to the combustor inner annular liner and forming a combustion plenum therebetween, the outer annular liner having an upstream end; a combustor dome coupled to and extending between the combustor inner and outer annular liner upstream ends; and a curved annular plate coupled to the combustor inner and outer annular liner upstream ends to form a combustor subplenum therebetween, the curved annular plate having a first opening and a second opening, the first opening formed therein and aligned with the deswirl assembly outlet to receive air discharged therefrom. 7. The engine of claim 6, further comprising: a fuel injector disposed at least partially in the combustion plenum and extending through the curved annular plate second opening. 8. The engine of claim 6, wherein the first and second openings have different shapes. 9. The engine of claim 6, wherein the deswirl assembly flowpath is arcuate. 10. The engine of claim 6, wherein the combustor dome includes an opening formed therethrough.