Engine component for a turbine engine

Patent metadata

Field	Value
Publication number	US-2016123154-A1
Application number	US-201514861522-A
Country	US
Kind code	A1
Filing date	Sep 22, 2015
Priority date	Oct 31, 2014
Publication date	May 5, 2016
Grant date	—

Abstract

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.

First claim

What is claimed is:

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 substr

Assignees

• Gen Electric

Inventors

• Manning Robert Francis
• Correia Victor Hugo Silva
• Buhler Jared Peter
• Pritchard Jr Byron Andrew
• Vining William Collins
• Bourassa Corey
• Laskowski Gregory Michael
• Parker David Vickery

Classifications

• F01D5/147 Primary

  Construction, i.e. structural features, e.g. of weight-saving hollow blades (F01D5/148, F01D5/16 and F01D5/20 take precedence; blade shape F01D5/141; blades with cooling or heating channels or cavities F01D5/18; heating, heat-insulating or cooling means on blades F01D5/18) · CPC title

• F02C7/05 Primary

  having provisions for obviating the penetration of damaging objects or particles · CPC title

• F05D2260/607

  Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles · CPC title

• F02C7/052

  with dust-separation devices · CPC title

• Y02T50/60

  Efficient propulsion technologies, e.g. for aircraft · CPC title