Fluid distributors for fluid nozzles
A fluid nozzle includes a first fluid circuit, a second fluid circuit spaced apart from the first fluid circuit and a fuel circuit. The fuel circuit is defined between the first and second fluid circuits and between a first fuel circuit wall and a second fuel circuit wall. A ring-shaped permeable barrier is positioned between the first and second fuel circuit walls configured and adapted to provide a controlled resistance to fuel flow. A fuel distributor includes a first fuel circuit wall and a second fuel circuit wall spaced apart from the first fuel circuit wall. A fuel circuit is defined between the first and second fuel circuit walls. A ring-shaped permeable barrier is positioned between first and second fuel circuit walls. A combustion assembly includes a combustor housing, a combustor dome positioned at an upstream end of the combustor housing, and a fluid nozzle positioned adjacent the combustor dome.
1. A fluid nozzle comprising:
a first fluid circuit;
a second fluid circuit spaced apart from the first fluid circuit;
a fuel circuit defined between the first and second fluid circuits and between a first fuel circuit wall and a second fuel circuit wall; and
a ring-shaped permeable barrier that forms a complete annulus between the first and second fuel circuit walls, wherein the ring-shaped permeable barrier is configured and adapted to provide a controlled resistance to fuel flow, and wherein the first and second fuel circuit walls each define at least a portion of the boundary of the fuel circuit upstream from the ring-shaped permeable barrier.
2. The fluid nozzle as recited in claim 1 , wherein the ring-shaped permeable barrier includes a sintered metal distributor body.
3. The fluid nozzle as recited in claim 1 , wherein the ring-shaped permeable barrier has an outer diameter inlet and an inner diameter outlet, wherein the inner diameter outlet includes a beveled surface.
4. The fluid nozzle as recited in claim 1 , wherein the ring-shaped permeable barrier is produced by additive manufacturing.
5. The fluid nozzle as recited in claim 1 , wherein at least one of the first or second fluid circuits is a swirling air circuit.
6. The fluid nozzle as recited in claim 1 , wherein at least one of the first or second fluid circuits is a non-swirling air circuit.
7. The fluid nozzle as recited in claim 1 , wherein the first fluid circuit is defined between a first annular swirler shell and second annular swirler shell.
8. The fluid nozzle as recited in claim 1 , further comprising a fuel inlet in fluid communication with the fuel circuit.
9. A fuel distributor comprising:
a first fuel circuit wall;
a second fuel circuit wall spaced apart from the first fuel circuit wall, wherein a fuel circuit is defined between the first and second fuel circuit walls; and
a ring-shaped permeable barrier that forms a complete annulus between the first and second fuel circuit walls, wherein the ring-shaped permeable barrier is configured and adapted to provide a controlled resistance to fuel flow in the fuel circuit, and wherein the first and second fuel circuit walls each define at least a portion of the boundary of the fuel circuit upstream from the ring-shaped permeable barrier.
10. The fuel distributor as recited in claim 9 , wherein the ring-shaped permeable barrier includes a sintered metal distributor body.
11. The fuel distributor as recited in claim 9 , wherein the ring-shaped permeable barrier has an outer diameter inlet and an inner diameter outlet, wherein the inner diameter outlet includes a beveled surface.
12. The fuel distributor as recited in claim 9 , wherein the ring-shaped permeable barrier is produced by additive manufacturing.
13. The fuel distributor as recited in claim 9 , further comprising a fuel inlet in fluid communication with the fuel circuit.
14. A combustion assembly comprising:
a combustor housing;
a combustor dome positioned at an upstream end of the combustor housing; and
a fluid nozzle positioned adjacent to the combustor dome, the fluid nozzle including:
a first fluid circuit;
a second fluid circuit spaced apart from the first fluid circuit;
a fuel circuit defined between the first and second fluid circuits and between a first fuel circuit wall and a second fuel circuit wall; and
a ring-shaped permeable barrier, that forms a complete annulus between the first and second fluid circuit walls, wherein the ring-shaped permeable barrier is configured and adapted to provide a controlled resistance to fluid flow, and wherein the first and second fuel circuit walls each define at least a portion of the boundary of the fuel circuit upstream from the ring-shaped permeable barrier.
15. The combustion assembly as recited in claim 14 , wherein the ring-shaped permeable barrier includes a sintered metal flow distributor body.
16. The combustion assembly as recited in claim 14 , wherein the ring-shaped permeable barrier has an outer diameter inlet and an inner diameter outlet, wherein the inner diameter outlet includes a beveled surface.
17. The combustion assembly as recited in claim 14 , wherein the ring-shaped permeable barrier is produced by additive manufacturing.
18. The combustion assembly as recited in claim 14 , wherein the first fluid circuit is a swirling air circuit.
19. The combustion assembly as recited in claim 14 , wherein the second fluid circuit is a non-swirling air circuit.
20. The combustion assembly as recited in claim 14 , wherein the first fluid circuit is defined between a first annular swirler shell and second annular swirler shell.