IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0517139
(2006-09-06)
|
등록번호 |
US-7797945
(2010-10-11)
|
발명자
/ 주소 |
- Appleby, Andrew
- Kesner, Charles E.
- Garrod, Todd C.
- LaBenz, Joel E.
|
출원인 / 주소 |
- Honeywell International Inc.
|
대리인 / 주소 |
Ingrassia Fisher & Lorenz, P.C.
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
15 |
초록
▼
A bleed valve assembly for discharging bleed air into a gas turbine engine bypass plenum includes a bleed flow duct, a bleed valve, and a flow deflector. The bleed flow duct is contoured such that it delivers uniformly flowing bleed air to the flow deflector when the bleed valve is in the open posit
A bleed valve assembly for discharging bleed air into a gas turbine engine bypass plenum includes a bleed flow duct, a bleed valve, and a flow deflector. The bleed flow duct is contoured such that it delivers uniformly flowing bleed air to the flow deflector when the bleed valve is in the open position. The flow deflector has a plurality of openings formed therein. Each opening fluidly communicates the bleed air flow passage with the bypass plenum. A portion of the openings are oriented at a discharge angle such that bleed air is discharged from each opening in a direction that does not have a vector component in the direction in which air is flowing in the bypass plenum, and another portion of the openings are oriented to provide stress relief to the deflector.
대표청구항
▼
We claim: 1. A bleed valve assembly for discharging bleed air into a gas turbine engine bypass plenum having bypass air flowing there-through in a first flow direction, the valve assembly comprising: a bleed flow duct having bleed air inlet and a bleed air outlet, the bleed air inlet adapted to rec
We claim: 1. A bleed valve assembly for discharging bleed air into a gas turbine engine bypass plenum having bypass air flowing there-through in a first flow direction, the valve assembly comprising: a bleed flow duct having bleed air inlet and a bleed air outlet, the bleed air inlet adapted to receive bleed air from a turbine engine compressor, the bleed air outlet configured to discharge the bleed air into the bypass plenum; a bleed valve disposed at least partially within the bleed flow duct and movable between at least a closed position, in which the bleed air does not flow through the bleed flow duct, and an open position, in which the bleed air flows through the bleed flow duct; and a flow deflector disposed adjacent the bleed air outlet, the flow deflector having a plurality of openings formed therein, each opening symmetrically disposed about a central axis and including an inlet port in fluid communication with the bleed air flow passage and an outlet port in fluid communication with the bypass plenum, each opening further oriented at a discharge angle, wherein: the plurality of openings includes a first set of openings and a second set of openings, the first set of openings at least partially surrounding the second set of openings, the discharge angle of each opening is an angle relative to a first plane that is tangent to the outlet port of the opening and intersects the central axis of the opening, the discharge angle of each of the first set of openings is substantially perpendicular to the first plane, and the discharge angle of each of the second set of openings is such that bleed air is discharged therefrom in a direction that does not have a vector component in the first flow direction. 2. The assembly of claim 1, wherein the discharge angle of each of the second set of openings is an acute angle. 3. The assembly of claim 1, wherein the discharge angle of each of the second set of openings is between about 55-degrees and about 65-degrees. 4. The assembly of claim 1, wherein the discharge angle of each of the second set of openings is about 60-degrees. 5. The assembly of claim 1, wherein the flow deflector includes: a dome section having a substantially curved contour; and a rim section surrounding, and extending axially from, the dome section, the rim section coupled to the bleed flow duct. 6. The assembly of claim 5, wherein the dome section is substantially concave in orientation. 7. The assembly of claim 1, wherein: the dome section includes a central region and an outer peripheral region that surrounds the central region; the first set of openings are evenly spaced around the outer peripheral region; and the second set of openings are evenly spaced around the central region. 8. The assembly of claim 7, wherein: the first and second sets of openings define a boundary region in the dome section between the central region and the outer peripheral region; and the boundary region has no openings formed therein. 9. The assembly of claim 1, wherein the dome section has a substantially spherical contour. 10. A flow deflector for use in discharging a first gas into a passage through which a second gas flows in a flow direction, the flow deflector comprising: a dome section having a first side and a second side, the second side configured to be disposed within the passage; and a plurality of openings extending between the first and second sides, each opening including an inlet port and an outlet port, and symmetrically disposed about a central axis, each opening further disposed at a discharge angle relative to a plane that is tangent to the outlet port of the opening and intersects the central axis of the opening, wherein: the plurality of openings includes a first set of openings and a second set of openings, the first set of openings at least partially surrounding the second set of openings, the discharge angle of each of the first set of openings is substantially perpendicular to the plane, and the discharge angle of each of the second set of openings is an acute angle. 11. The flow deflector of claim 10, wherein the discharge angle of each of the second set of openings is between about 55-degrees and about 65-degrees. 12. The flow deflector of claim 11, wherein the discharge angle of each of the second set of openings is about 60-degrees. 13. The flow deflector of claim 10, further comprising: a rim section surrounding, and extending axially from, the dome section, the rim section adapted to couple to the flow deflector to a bleed flow duct. 14. The flow deflector of claim 10, wherein the dome section is substantially concave in orientation. 15. The flow deflector of claim 10, wherein: the dome section includes a central region and an outer peripheral region that surrounds the central region; the first set of openings are evenly spaced around the outer peripheral region; and the second set of openings are evenly spaced around the central region. 16. The flow deflector of claim 15, wherein: the first and second sets of openings define a boundary region in the dome section between the central region and the outer peripheral region; and the boundary region has no openings formed therein. 17. The flow deflector of claim 10, wherein the dome section has a substantially spherical contour. 18. A method of making a bleed valve flow deflector, comprising the steps of: forming a substantially concave dome section in at least a portion of a plate, the flat plate having a first major surface and a second major surface; forming a first set of openings through an outer peripheral region of the substantially concave dome section; forming a second set of openings, through a central region of the substantially concave dome section, the second set of openings disposed radially inwardly of, and spaced apart from, the first set of openings, wherein: each opening of the first set of openings is symmetrically disposed about a line that is normal to the first and second major surfaces, and each opening of the second set of openings is symmetrically disposed about a central axis that is disposed at an acute angle relative to a line that is normal to the first and second major surfaces. 19. The method of claim 18, wherein the acute angle is between about 25° to about 35°.
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