Engine component for a turbine engine
An engine component for a turbine engine includes a particle collector having a substrate configured to retain at least some particles from a particle-laden stream passing through a portion of the engine. A fluid bypass around the substrate of the collector enables the particle-laden stream to bypass the substrate if the substrate is filled with particles.
1. An engine component for a turbine engine, the turbine engine generating a fluid stream, comprising:
a particle separator having an inlet receiving the fluid stream, a scavenge outlet emitting a particle-laden stream, and a separator outlet emitting a reduced-particle stream;
a particle collector in fluid communication with the scavenge outlet and comprising a substrate configured to retain at least some of the particles from the particle-laden stream; and
a bypass passage fluidly coupled to the particle-laden stream and defining a fluid bypass around the substrate downstream of the scavenge outlet;
wherein at least a portion of the particle-laden stream contacts the substrate which retains at least some of the particles, and as the substrate fills with particles, the particle-laden stream can bypass the substrate via the bypass passage.
2. The engine component from claim 1 , wherein the particle collector further comprises a baffle between the scavenge outlet and the substrate, the baffle comprising at least one impingement aperture through which the particle-laden stream passes before contact with the substrate.
3. The engine component of claim 2 , wherein the impingement aperture is oriented generally normal to a surface of the substrate confronting the baffle.
4. The engine component of claim 2 , wherein the bypass passage is at least partially defined between the baffle and the substrate.
5. The engine component of claim 4 , wherein the bypass passage comprises an opening between the baffle and a wall of the engine component.
6. The engine component from claim 2 and further comprising a wall defining an interior chamber, wherein the substrate and the baffle are provided within the interior chamber.
7. The engine component of claim 6 , wherein the bypass passage comprises an opening between the baffle and a wall of the engine component.
8. The engine component from claim 1 , wherein the particle collector comprises a body having a receiving opening offset from the scavenge outlet.
9. The engine component of claim 8 , wherein the bypass passage is at least partially defined by an opening between the body and the scavenge outlet.
10. The engine component from claim 1 , wherein the substrate has an upstream surface confronting the particle-laden stream emitted from the scavenge outlet and a downstream surface opposite the upstream surface, and wherein the particle-laden stream can flow through the substrate from the upstream surface to the downstream surface.
11. The engine component from claim 10 , wherein the particle collector comprises a standoff between the downstream surface of the substrate and a wall of the engine component to define an air flow path between the downstream surface and the wall.
12. The engine component from claim 11 , wherein the particle collector further comprises a baffle between the scavenge outlet and the substrate, the baffle comprising at least one impingement aperture through which the particle-laden stream passes before contact with the substrate.
13. The engine component from claim 10 , wherein the particle collector comprises a body having a receiving opening in fluid communication with the scavenge outlet.
14. The engine component from claim 13 , wherein the receiving opening is offset from the scavenge outlet.
15. The engine component from claim 13 , wherein the ratio of the diameter defined by the receiving opening to the diameter defined by the scavenge outlet is 1:2 to 3:2.
16. The engine component from claim 15 , wherein the distance between the receiving opening and the scavenge outlet is 0 to 5 times the diameter of the scavenge outlet.
17. The engine component from claim 1 , wherein the substrate has a surface confronting the particle-laden stream emitted from the scavenge outlet, and wherein the at least a portion of the particle-laden stream that contacts the substrate impacts and traverses along the surface.
18. The engine component from claim 1 and further comprising a wall having a purge hole and at least partially defining an interior chamber, wherein the substrate is provided within the interior chamber and wherein the purge hole comprises a raised edge extending from the wall.
19. The engine component of claim 18 , wherein the raised edge extends at a non-orthogonal angle relative to the wall surrounding the purge hole.
20. The engine component from claim 1 , wherein the substrate comprises one of wire mesh, honeycomb, bristles, ceramic, ceramic foam, metal, or metallic foam.
21. The engine component from claim 1 , wherein the substrate comprises an air-permeable, porous substrate.
22. The engine component from claim 1 , wherein the engine component is an inducer assembly, a shroud, a combustor liner, a nozzle, a blade, a vane, an impeller, or a compressor bleed port.
23. The engine component from claim 1 , wherein the particle separator comprises a centrifugal separator.
24. An engine component for a turbine engine, the turbine engine generating a particle-laden fluid stream, comprising:
a particle collector in fluid communication with the particle-laden fluid stream and comprising a substrate configured to retain at least some of the particles from the particle-laden fluid stream; and
a bypass passage fluidly coupled to the particle-laden fluid stream and defining a fluid bypass around the substrate;
wherein at least a portion of the particle-laden fluid stream contacts the substrate which retains at least some of the particles, and as the substrate fills with particles, the particle-laden fluid stream can bypass the substrate via the bypass passage.
25. The engine component from claim 24 , wherein the particle collector further comprises a baffle upstream of the substrate, the baffle comprising at least one impingement aperture through which the particle-laden stream passes before contact with the substrate.
26. The engine component of claim 25 , wherein the impingement aperture is oriented generally normal to a surface of the substrate confronting the baffle.
27. The engine component of claim 25 , wherein the bypass passage is at least partially defined between the baffle and the substrate.
28. The engine component of claim 27 , wherein the bypass passage comprises an opening between the baffle and a wall of the engine component.
29. The engine component from claim 25 and further comprising a wall defining an interior chamber, wherein the substrate and the baffle are provided within the interior chamber.
30. The engine component of claim 29 , wherein the bypass passage comprises an opening between the baffle and a wall of the engine component.
31. The engine component from claim 30 , wherein the substrate has an upstream surface confronting the particle-laden stream emitted from the baffle and a downstream surface opposite the upstream surface, and wherein the particle-laden stream can flow through the substrate from the upstream surface to the downstream surface.
32. The engine component from claim 24 , wherein the substrate has an upstream surface confronting the particle-laden stream and a downstream surface opposite the upstream surface, and wherein the particle-laden stream can flow through the substrate from the upstream surface to the downstream surface.
33. The engine component from claim 32 , wherein the particle collector comprises a standoff between the downstream surface of the substrate and a wall of the engine component to define an air flow path between the downstream surface and the wall.
34. The engine component from claim 33 , wherein the particle collector further comprises a baffle upstream of the substrate, the baffle comprising at least one impingement aperture through which the particle-laden stream passes before contact with the substrate.
35. The engine component from claim 24 , wherein the substrate has a surface confronting the particle-laden stream, and wherein the at least a portion of the particle-laden stream that contacts the substrate impacts and traverses along the surface.
36. The engine component from claim 24 and further comprising a wall having a purge hole and at least partially defining an interior chamber, wherein the substrate is provided within the interior chamber and wherein the purge hole comprises a raised edge extending from the wall.
37. The engine component of claim 36 , wherein the raised edge extends at a non-orthogonal angle relative to the wall surrounding the purge hole.
38. The engine component from claim 24 , wherein the substrate comprises one of wire mesh, honeycomb, bristles, ceramic, ceramic foam, metal, or metallic foam.
39. The engine component from claim 24 , wherein the substrate comprises an air-permeable, porous substrate.
40. The engine component from claim 24 , wherein the engine component is an inducer assembly, a shroud, a combustor liner, a nozzle, a blade, a vane, an impeller, or a compressor bleed port.