IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0706746
(2010-02-17)
|
등록번호 |
US-8398359
(2013-03-19)
|
발명자
/ 주소 |
- Gallier, Kirk Douglas
- Neeli, Sudhakar
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
7 |
초록
▼
An exhaust diffuser including an outer flow guide surface and an inner flow guide surface defining an inlet, a first collection chute having an outlet in fluid communication with the inlet, the first collection chute operative to diffuse a flow of a fluid, a second collection chute having an outlet
An exhaust diffuser including an outer flow guide surface and an inner flow guide surface defining an inlet, a first collection chute having an outlet in fluid communication with the inlet, the first collection chute operative to diffuse a flow of a fluid, a second collection chute having an outlet in fluid communication with the inlet, the second collection chute operative to diffuse the flow of the fluid, and the outer flow guide surface and the inner flow guide surface are operative to guide and direct the flow of the fluid to the first collection chute and the second collection chute.
대표청구항
▼
1. An exhaust diffuser comprising: an inlet defined by an outer flow guide surface and an inner flow guide surface operative to receive a fluid, a center line passing vertically through a center of the inlet defining a horizontal center of the exhaust diffuser;a first fluid flow structure including
1. An exhaust diffuser comprising: an inlet defined by an outer flow guide surface and an inner flow guide surface operative to receive a fluid, a center line passing vertically through a center of the inlet defining a horizontal center of the exhaust diffuser;a first fluid flow structure including a first flow portion in communication with the inlet and configured to direct the flow of the fluid upward and horizontally outward from the inlet and then downward through a first collection chute to a first outlet, and a second flow portion in communication with the inlet and configured to direct the flow of the fluid downward and away from the center line to the first outlet, the first collection chute having an increasing flow area operative to diffuse the flow of a fluid; anda second fluid flow structure including a first flow portion in communication with the inlet and configured to direct the flow of the fluid upward and horizontally outward from the inlet and then downward through a second collection chute to a second outlet, and a second flow portion in communication with the inlet and configured to direct the flow of the fluid downward and away from the center line to the second outlet, the second collection chute having an increasing flow area operative to diffuse the flow of the fluid. 2. The exhaust diffuser of claim 1, wherein the inner flow guide surface includes a hyperboloid shaped portion at the inlet operative to guide the fluid into flow paths. 3. The exhaust diffuser of claim 1, wherein the first collection chute includes a first baffle portion that at least partially defines a first exit portion corresponding to the first flow portion of the first fluid flow structure and a second exit portion corresponding to the second flow portion of the first fluid flow structure; and the second collection chute includes a second baffle portion that at least partially defines a first exit portion corresponding to the first flow portion of the second fluid flow structure and a second exit portion corresponding to the second flow portion of the second fluid flow structure. 4. The exhaust diffuser of claim 1, wherein the annular inlet defines a first planar area, the first outlet defines a second planar area, and the second outlet defines a third planar area, and the first planar area is normal to the second planar area and the third planar area. 5. The exhaust diffuser of claim 4, wherein a space in front of the annular inlet from which fluid flows into the exhaust diffuser defines a positive region relative to the first planar area and a space behind the annular inlet defines a negative region relative to the first planar area, the outer flow guide surface and the inner flow guide surface define the first portion of the first fluid flow structure to follow a curved path terminating in a first portion of the first outlet located at least partially in the positive region relative to the first planar area, andthe outer flow uide surface and the inner flow guide surface define the first portion of the second fluid flow structure to follow a curved path terminating in a first portion of the second outlet located at least partially in the positive region relative to the first planar area. 6. The exhaust diffuser of claim 5, wherein the outer flow guide surface and the inner flow guide surface define the second flow portion of the first fluid flow structure to follow a curved path terminating in a second portion of the first outlet located in the negative region relative to the first planar area, and the outer flow guide surface and the inner flow guide surface define the second flow portion of the second fluid flow structure to follow a curved path terminating in a second portion of the second outlet located in the negative region relative to the first planar area. 7. The exhaust diffuser of claim 4, wherein a space in front of the annular inlet from which fluid flows into the exhaust diffuser defines a positive region relative to the first planar area and a space behind the annular inlet defines a negative region relative to the first planar area, and the outer flow guide surface and the inner flow guide surface define the second portion of the first fluid flow structure to follow a curved path terminating in a portion of the first outlet located in the negative region relative to the first planar area; andthe outer flow uide surface and the inner flow uide surface define the second portion of the second fluid flow structure to follow a curved path terminating in a portion of the second outlet located in the negative region relative to the first planar area. 8. The exhaust diffuser of claim 1, wherein the inlet is annular. 9. The exhaust diffuser of claim 1, wherein inner edges of the first and second outlets are located inward of outside edges of the inlet in a longitudinal direction. 10. The exhaust diffuser of claim 1, wherein an outer flow guide surface of each of the first outlet and the second outlet slopes toward the inlet from a rear of the exhaust diffuser to a front of the exhaust diffuser. 11. The exhaust diffuser of claim 1, wherein the second flow portions of the first and second collection chutes are configured to direct at least a portion of the fluid flow from the inlet into a fluid flow of the first flow portions of the first and second collection chutes at a location upstream of the first and second outlets. 12. An exhaust diffuser, comprising: an inlet defined by an outer flow guide surface and an inner flow guide surface;a first fluid flow structure defined by the outer and inner fluid flow guide surfaces to direct a fluid upward and away from the inlet and downward through a first collection chute to a first outlet, the first collection chute operative to diffuse a flow of a fluid; anda second fluid flow structure defined by the outer and inner fluid flow guide surfaces to direct a fluid upward and away from the inlet and downward through a second collection chute to a second outlet, the second collection chute operative to diffuse the flow of the fluid,wherein the inlet defines a first plane and the first plane defines a positive region corresponding to a region from which fluid flows into the inlet and a negative region corresponding to a region into which fluid flows from the inlet,at least a portion of the first and second outlets are located in the positive region, andthe first fluid flow structure and the second fluid flow structure are configured to direct at least a portion of fluid that flows through the first and second collection chutes in a direction from the negative region to the positive region. 13. The exhaust diffuser of claim 12, wherein the inlet is annular. 14. The exhaust diffuser of claim 12, wherein the first fluid flow structure includes a radial turn portion between the inlet to the first collection chute, the flow having a higher diffusion rate in the first collection chute than in the radial turn portion. 15. The exhaust diffuser of claim 12, wherein the first fluid flow structure includes a 90 degree turn portion configured to turn a fluid flow 90 degrees from an axis of the inlet to the first collection chute, the flow having a higher diffusion rate in the first collection chute than in the 90 degree turn portion. 16. A method for diffusing a fluid, the method including: receiving a fluid flow at an inlet, a center line passing vertically through a center of the inlet defining a horizontal center of an exhaust diffuser;guiding the fluid flow into a first flow path having a radial turn upward and away from the inlet to a first collection chute;guiding the fluid flow into a second flow path having a turn in a direction perpendicular to the inlet downward and outward from the center line of the inlet to the first collection chute;guiding the fluid flow into a third flow path having a radial turn upward and away from the inlet to a second collection chute;guiding the fluid flow into a fourth flow path having a turn in a direction perpendicular to the inlet downward and outward from the center line of the inlet to the second collection chute;diffusing the fluid flow in the first collection chute; anddiffusing the fluid flow in the second collection chute.
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