IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0550239
(2006-10-17)
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등록번호 |
US-7658571
(2010-04-02)
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발명자
/ 주소 |
|
출원인 / 주소 |
- American Wave Machines, Inc.
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
28 |
초록
▼
A wave forming apparatus has a channel for containing a flow of water, the channel having an inlet end connected to a water supply for supplying a flowing stream of water, a base, and spaced side walls, and at least one oblique foil member in the channel. The oblique foil member has a leading face e
A wave forming apparatus has a channel for containing a flow of water, the channel having an inlet end connected to a water supply for supplying a flowing stream of water, a base, and spaced side walls, and at least one oblique foil member in the channel. The oblique foil member has a leading face extending at an oblique angle to the water stream in the channel, and a trailing, venturi face with a leading portion facing one of the side walls to form a venturi or constricted pass between the side wall and leading portion of the venturi face. The leading face, venturi face, and venturi pass together are adapted to form a standing barreling wave at the venturi pass.
대표청구항
▼
The invention claimed is: 1. A wave forming apparatus, comprising: a channel having an inlet end, a base, and opposite first and second side walls; a water supply at the inlet end of the channel for supplying a flowing stream of water to the channel; at least one raised foil member having a predete
The invention claimed is: 1. A wave forming apparatus, comprising: a channel having an inlet end, a base, and opposite first and second side walls; a water supply at the inlet end of the channel for supplying a flowing stream of water to the channel; at least one raised foil member having a predetermined maximum height in the base of the channel, the foil member having a leading face extending towards the first side wall of the channel at an oblique angle to the flowing stream of the water, the leading face having a leading end and a trailing end in a flow direction, and a venturi face extending from the trailing end of the leading face, a leading portion of the venturi face facing the first side wall to define a venturi pass between the first side wall and the leading portion of the venturi face wherein a width of the venturi pass is approximately equal to the foil height, and a trailing portion of the venturi face extending away from the first side wall; and the leading face, the venturi face, and the venturi pass together being adapted to form a standing barreling wave at the venturi pass. 2. The apparatus of claim 1, wherein the leading portion of the venturi face is of rounded, convex shape. 3. The apparatus of claim 1, wherein the trailing portion of the venturi face is rounded. 4. The apparatus of claim 1, wherein the leading portion of the venturi face is inclined away from the first side wall at a predetermined tilt angle. 5. The apparatus of claim 1, wherein the leading face is tilted in the flow direction at a predetermined vertical tilt angle to the base of the channel. 6. The apparatus of claim 1, further comprising first and second river banks extending along opposite sides of the channel, the first river bank extending outwardly from the first channel side wall and the second river bank extending outwardly from the second channel side wall. 7. The apparatus of claim 6, wherein the river banks are angled downwardly in a downstream direction from the inlet end of the channel. 8. The apparatus of claim 1, wherein the height of the first side wall is less than the height of the foil member. 9. The apparatus of claim 8, wherein the height of the first side wall is approximately eleven inches less than the height of the foil member. 10. The apparatus of claim 1, wherein the leading face of the foil member is inclined at a first tilt angle relative to the base of the channel and is inclined at a second, sweep angle relative to the water flow direction. 11. The apparatus of claim 10, wherein the tilt angle is in the range from 20 to 80 degrees from the vertical. 12. The apparatus of claim 10, wherein the sweep angle is in the range from 10 degrees to 70 degrees. 13. The apparatus of claim 10, wherein the tilt angle is approximately 31 degrees. 14. The apparatus of claim 10, wherein the tilt angle is in the range from 90 degrees to 20 degrees. 15. The apparatus of claim 1, wherein the leading face is substantially flat. 16. The apparatus of claim 1, wherein the leading face is convex. 17. The apparatus of claim 1, wherein the foil member has a peak at the top of the leading face and a downstream face extending from the peak to the base of the channel. 18. The apparatus of claim 17, wherein the peak is of a convex, rounded shape. 19. The apparatus of claim 17, wherein the downstream face is shaped to form steps. 20. The apparatus of claim 17, wherein the downstream face is shaped to form a ramp. 21. The apparatus of claim 1, wherein the first foil member is located in a first half of the channel and a second foil member is located in a second half of the channel adjacent with the first foil member, the second foil member having a second leading face extending at an oblique angle to the flowing stream of the water towards the second side wall, and a second venturi face extending from the trailing end of the second leading face, a leading portion of the second venturi face being rounded and facing the second side wall to define a second venturi pass between the second side wall and the leading portion of the second venturi face, a trailing portion of the second venturi face curving back away from the second side wall, and the second leading face and the second venturi face are adapted to form a second standing barreling wave at the second venturi pass. 22. The apparatus of claim 21, wherein the second foil member is a mirror image of the first foil member. 23. The apparatus of claim 21, wherein the first and second foil members are joined together at an apex to form a generally V-shape with the apex facing upstream. 24. The apparatus of claim 21, wherein the first and second foil members are positioned in transverse alignment at the same general location in the channel, and are spaced apart to form a gap between the foil members at a central location between the first and second side walls of the channel. 25. The apparatus of claim 1, wherein the foil member and the venturi pass span the width of the channel between the first and the second side walls. 26. The apparatus of claim 1, wherein the channel has a predetermined width and the foil member and the venturi pass span a width no greater than half the channel width. 27. The apparatus of claim 1, wherein the foil member is inflatable between a collapsed position in which no barreling waves are formed and an inflated condition in which the standing barreling wave is formed at the venturi pass. 28. The apparatus of claim 1, wherein the foil member is retractable into a retracted position beneath the base of the channel. 29. The apparatus of claim 1, further comprising a weir at the inlet end of the channel, the water supply having a supply outlet having a smooth radius throat section directing water over the weir. 30. A method of forming a standing barreling wave, comprising: positioning a foil member to project upwardly from a base of a channel to a predetermined maximum height with a leading face of the foil member at an oblique angle to a water stream direction defined by the channel and a venturi face at a predetermined spacing from a first channel side wall approximately equal to the foil height to define a venturi pass between a leading portion of the venturi face and the channel side wall; supplying a flowing stream of water to an inlet end of the channel towards the foil member; deflecting part of the water stream arriving at the leading face of the foil member into a deflected stream directed towards the venturi pass; and combining the deflected stream of water with water flowing directly along the channel into the venturi pass; whereby the standing barreling wave is formed at the venturi pass. 31. A foil device for forming a standing barreling wave, comprising: an airfoil shaped member having a front face, a rear face, a peak, and a base adapted for mounting in a channel containing a flowing stream of water such that the front face extends at an oblique angle to a water stream direction; the front face having a leading end and a trailing end; a trailing, venturi face extending from the trailing end of the front face to the rear face of the member; and the venturi face having a leading portion adapted to face in a direction transverse to the water stream direction and towards a side wall of the channel, and to form a venturi pass with the side wall of the channel at a width that is approximately equal to the height of the airfoil peak to form the standing barreling wave when the airfoil shaped member is installed in the channel. 32. The device as claimed in claim 31, further comprising a second airfoil shaped member which is a mirror image of the first mentioned airfoil shaped member, the leading ends of the venturi faces of the two members being joined together to form a general V-shape, and the leading portions of the two venturi faces being adapted to face opposite side walls of the channel in which the device is installed to form a first venturi pass between one venturi face and one side wall of the channel and a second venturi pass between the other venturi face and the other side wall of the channel. 33. The device as claimed in claim 31, wherein steps are formed in the rear face of the member. 34. The device as claimed in claim 31, wherein the venturi face has a trailing portion which curves rearwardly away from the leading portion. 35. The device as claimed in claim 31, wherein the leading portion of the venturi face is inclined relative to the base of the member, and is adapted to incline away from an opposing channel side wall between the base and the peak of the member. 36. The device as claimed in claim 31, wherein the peak has a convex, rounded shape. 37. The device as claimed in claim 31, wherein the leading portion of the venturi face is of rounded, convex shape.
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