Claims
- 1. A flow enhancement system for the axial flow system of a turbomachine in the combination:
- a generally tubular sectioned discharge duct having a smaller forward end for receiving gas flow from said axial flow section and a larger discharge end for discharging said gas received from said axial flow section;
- a central shaft housing disposed approximately concentrically on the central axis of said generally tubular discharge duct extending through the discharge end of said duct;
- a collector housing having a front, side, rear, and a bottom therebetween, and a collector outlet overlying said bottom;
- a collector inlet defined in said front about said discharge end of said discharge duct whereby gas discharged from said discharge duct enters said housing;
- said collector outlet defined by said front, side, and rear, said collector outlet requiring a substantially 90.degree. turn in fluid flow from said collector inlet to outlet to permit the discharge of said gas from said collector housing away from said shaft housing;
- said rear of said collector housing having said central shaft housing connected thereto for permitting a central shaft to pass outwardly of said housing for the transmission of power by a shaft;
- the flow enhancement system within said collector housing comprising in combination:
- at least a first flow deflector mounted adjacent said bottom of said collector housing;
- said first deflector being positioned at said bottom of said collector housing on the opposite side of said central shaft housing from said collector outlet, said flow deflector defining a concave side and a convex side;
- said flow deflector extending at least partially around said central shaft housing and having a surface extending arcuately to and toward said collector box outlet, said surface passing around said shaft to deflect gases on a concave side of said deflector to said outlet along a rear wall of said collector housing;
- said first flow deflector defining a gas dividing lip, said lip for intersecting and dividing around said discharge duct gas flowing from said discharge end to distribute gas between said convex and concave sides of said flow deflector;
- at least a second flow deflector generally defined above said first flow deflector, said second flow deflector generally overlying said central shaft housing along an interval adjacent to said collector outlet;
- said second flow deflector extending at least partially around said central shaft housing and having a surface extending arcuately to and toward said collector box side walls, said surface passing above and away from said shaft to deflect gases on a first concave side of said deflector between said collector box front and said discharge end and to deflect gases on a second convex side of said deflector to said outlet in a common stream with flow at least from said concave side of said first flow deflector along said collector housing rear.
- 2. The flow enhancement system for axial flow section according to claim 1 and further including:
- at least two bottom flow deflector sections extending on either side of said central shaft housing.
- 3. The flow enhancement system for axial flow section according to claim 1 and further including:
- at least two top flow deflector supports extending to the back of said housing.
- 4. The flow enhancement system for axial flow section according to claim 1 and wherein:
- said bottom flow deflector includes a divider adjacent said central shaft housing for deflecting gas around said central shaft housing.
- 5. The flow enhancement system for axial flow section according to claim 1 and wherein:
- said collector surfaces are rounded.
- 6. The flow enhancement system for axial flow section according to claim 1 and wherein:
- said first flow deflector defines a gas dividing lip at a constant radius from said shaft housing.
- 7. The flow enhancement system for axial flow section according to claim 1 and wherein:
- said second flow deflector defines a gas dividing lip at a constant radius from said shaft housing.
- 8. A flow enhancement system for axial flow section of a turbomachine in the combination of:
- a generally tubular sectioned discharge duct having a smaller forward end for receiving gas flow from axial flow section and a larger discharge end for discharging said gas received from said axial flow section;
- a central shaft housing disposed approximately concentrically on the central axis of said generally tubular discharge duct extending through the discharge end of said duct;
- a collector housing having a front, side, rear, and a bottom therebetween, and a collector outlet overlying said bottom;
- a collector inlet defined in said front about said discharge end of said discharge duct whereby exhaust discharged from said discharge duct enters said housing;
- said collector outlet defined by said front, side, and rear, said collector outlet requiring a substantially 90.degree. turn in fluid flow from said collector inlet to outlet to permit the discharge of said exhaust gas from said collector housing away from said shaft housing;
- said rear of said collector housing having said central shaft housing connected thereto for permitting a central shaft to pass outwardly of said housing for the transmission of power by a shaft;
- the flow enhancement system within said collector housing comprising in combination:
- at least a first flow deflector mounted adjacent said bottom of said collector housing, said flow deflector defining a concave side and a convex side;
- said first deflector being positioned at said bottom of said collector housing on the opposite side of said central shaft housing from said collector outlet;
- said flow deflector extending at least partially around said central shaft housing and having a surface extending arcuately toward said collector box outlet, said flow deflector passing around said shaft to deflect gases on a concave side of said deflector to said outlet along a rear wall of said collector housing;
- said first flow deflector defining a gas dividing lip, said lip for intersecting and dividing around said discharge duct gas flowing from said discharge end to distribute gas between said convex and concave sides of said flow deflector;
- means fastening said first flow deflector to said collector box side walls.
- 9. The flow enhancement system for an axial flow section according to claim 8 and wherein:
- said bottom flow deflector includes a divider adjacent said central shaft housing for deflecting gas around said central shaft housing.
- 10. The flow enhancement system for an axial flow section according to claim 8 and wherein:
- said collector surfaces are rounded.
- 11. The flow enhancement system for axial flow system according to claim 8 and wherein:
- said first flow deflector defines a gas dividing lip at a constant radius from said shaft housing.
- 12. The flow enhancement system for axial flow section of a turbomachine in the combination of:
- a generally tubular sectioned discharge duct having a smaller forward end for receiving gas flow from said axial flow section and a larger discharge end for discharging said gas received from said axial flow section;
- a central shaft housing disposed approximately concentrically on the central axis of said generally tubular discharge duct extending through the discharge end of said duct;
- a collector housing having a front, side, rear, and a bottom therebetween, and a collector outlet overlying said bottom;
- a collector inlet defined in said front about said discharge end of said discharge duct whereby gas discharged from said discharge duct enters said housing;
- said collector outlet defined by said front, side, and rear, said collector outlet requiring a substantially 90.degree. turn in fluid flow from said collector inlet to outlet to permit the discharge of said exhaust gas from said collector housing away from said shaft housing;
- said rear of said collector housing having said central shaft housing connected thereto for permitting a central shaft to pass outwardly of said housing;
- at least a first flow deflector generally underlying said central shaft housing along and arcuately curving towards an interval adjacent said to said collector outlet, said deflector having a concave side and a convex side;
- said flow deflector extending at least partially around said central shaft housing and having a surface extending arcuately toward said collector box outlet, said flow deflector passing around said shaft to deflect gases on a concave side of said deflector to said outlet along a rear wall of said collector housing;
- said first flow deflector defining a gas dividing lip, said lip for intersecting and dividing around said discharge duct gas flowing from said discharge end to distribute gas between said convex and concave sides of said flow deflector.
- 13. The flow enhancement system for axial flow section according to claim 12 wherein:
- at least a second flow deflector generally overlying central shaft housing along an interval adjacent said to said collector outlet, said deflector having a concave side and a convex side;
- a leading edge of said second flow deflector curving partially around said central shaft housing and having a surface extending arcuately toward said collector box outlet and substantially to and toward said collector side walls, said surface curving around said shaft housing to deflect gases on first concave side of said deflector between said collector box front and said deflector and to deflect gases on second convex side of said deflector to said outlet in a common stream with flow passing along convex side of said second deflector.
- 14. The flow enhancement system for an axial flow section according to claim 12 and wherein:
- a flow divider substantially adjacent to and under said central shaft housing for deflecting gas around said central shaft housing.
- 15. The flow enhancement system for an axial flow section according to claim 12 and wherein:
- said collector surfaces are rounded.
- 16. The flow enhancement system for an axial flow section according to claim 12 and wherein:
- said first flow deflector defines a gas dividing lip at a constant radius from said shaft housing.
- 17. The flow enhancement system for an axial flow section according to claim 13 wherein:
- the farthest downstream intersection of the second flow deflector and the collector box walls is at a greater radius from the shaft housing axis than is the minimum distance between the shaft axis and the collector box side walls.
- 18. The flow enhancement system for an axial flow section according to claim 12 wherein:
- said first deflector surfaces are comprised of segments on either side of said central shaft housing.
- 19. The flow enhancement system for an axial flow section according to claim 13 wherein:
- a second of surface following the gas dividing lip of said second flow detector parallels the shaft housing in an interval extending toward the collector box to a point not closer to the rear wall than quarter the distance between the shaft housing and gas dividing lip.
- 20. The flow enhancement system for an axial flow section according to claim 13 wherein:
- the surface rearward of the gas dividing lip of said second flow deflector includes a conical section and diverges at an average angle from the shaft housing of between 0.degree. and 45.degree. as measured between the uppermost circumferential position on the shaft housing and said conical portion of the deflector, and extends downstream to a point not closer to the rear wall than 1/4 of the minimum gap between the gas dividing lip and the shaft housing.
- 21. The flow enhancement system for axial flow section of a turbomachine in the combination of:
- a generally tubular sectioned discharge duct having a smaller forward end for receiving gas flow from said axial flow section and a larger discharge end for discharging said gas received from said axial flow section;
- a central shaft housing disposed approximately concentrically on the central axis of said generally tubular discharge duct extending through the discharge end of said duct;
- a collector housing having a front, side, rear, and a bottom therebetween, and a collector outlet overlying said bottom;
- a collector inlet defined in said front about said discharge end of said discharge duct whereby gas discharged from said discharge duct enters said housing;
- said collector outlet defined by said front; side; and rear; said collector outlet requiring a substantially 90.degree. turn in fluid flow from said collector inlet to outlet to permit the discharge of said gas from said collector housing away from said shaft housing;
- said rear of said collector housing having said central shaft housing connected thereto for permitting a central shaft to pass outwardly of said housing for the transmission of power from by a shaft;
- the flow enhancement system within said collector housing comprising in combination:
- at least a first flow deflector mounted adjacent said bottom of said collector housing, said flow deflector defining a concave side and a convex side;
- said first deflector being positioned at said bottom of said collector housing on the opposite side of said central shaft housing from said collector outlet;
- said flow deflector extending at least partially around said central shaft housing and having a surface extending arcuately toward said collector box outlet, said flow deflector passing around said shaft to deflect gases on a concave side of said deflector to said outlet along a rear wall of said collector housing;
- said first flow deflector defining a gas dividing lip, said lip for intersecting and dividing around said discharge duct gas flowing from said discharge end to distribute gas between said convex and concave sides of said flow deflector; and,
- said flow deflector having a resonant frequency greater than 60 hertz.
- 22. A flow enhancement system for the axial flow section of a turbomachine according to claim 21 and wherein:
- said flow enhancement system includes a flow deflector below said central shaft housing.
- 23. A flow enhancement system for the axial flow section of a turbomachine according to claim 21 and wherein:
- said flow enhancement system includes a second flow deflector above said central shaft housing.
Parent Case Info
This application is a continuation-in-part of Ser. No. 07/616,027, filed Nov. 21, 1990 (to issue Feb. 23, 1993 as U.S. Pat. No. 5,188,510) entitled Method and Apparatus for Enhancing Turbo Machinery Flow by the inventors herein.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2231128 |
Jun 1972 |
DEX |
180823 |
Jun 1922 |
GBX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
616027 |
Nov 1990 |
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