[특허]Surface effect ship improvements

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Surface effect ship improvements

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63B-001/38
미국특허분류(USC)	114/067.A; 180/126
출원번호	US-0784443 (2004-02-23)
발명자 / 주소	Burg, Donald E.
인용정보	피인용 횟수 : 4 인용 특허 : 11

초록
▼

Presented is an improved Surface Effect Ship (SES) that offers the high efficiencies of the pressurized air cushion supported generic flexible bow and stern seal SES but without the generic SES's shortcomings that are due largely to its 80 percent total hull width flexible bow and stern seals. This is accomplished in the instant invention by use of forward extending rigid bow members positioned both sides of a pressurized hull supporting gas cushion where the width of the sidehulls make up a majority of the width of the instant invention improved surface effect ship with the remainder, less than 35 percent of vessel width normally, made up by a gas cushion forward seal member disposed between the bow members. Gas cushions may extend forward into undersides of the sidehull bow members to further reduce wetted area resistance. Longitudinally oriented fluid fences may be incorporated to at least partially separate portions of the gas cushion and thereby dampen pressure perturbations in the gas cushion(s). A third bow member may be utilized between port and starboard sidehulls.

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1. In an improved surface effect ship wherein said improved surface effect ship includes a port sidehull having a port bow member and a starboard sidehull having a starboard bow member and is supported upon a water surface in part by at least one artificially pressurized gas cushion, the improvement comprising:water contacting portions of said port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of forward water contacting portions of a gas cushion forward seal member by at least five percent of a waterline length of the improved surface effect ship and wherein said gas cushion forward seal member is, at least primarily, of a non-moveable, in relation to a hull the improved surface effect ship, structure and disposed, at least in part, between the port and starboard bow members and wherein inboard sidewalls of said port and starboard sidehulls are at least partially truncated going aft of the port and starboard bow members to thereby reduce wetted area of the improved surface effect ship. 2. The improved surface effect ship of claim 1 wherein the gas cushion forward seal member is angled over a majority of its width as seen in vertical transverse planes of the improved surface effect ship taken proximal an aft lower end of the gas cushion forward seal member.3. The improved surface effect ship of claim 1 wherein the gas cushion forward seal member is at least in part of an inverted-V shape as seen in vertical transverse planes of the improved surface effect ship taken proximal an aft lower end of the gas cushion forward seal member.4. The improved surface effect ship of claim 1 wherein water contacting portions of said port and starboard bow members extend forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least ten percent of a waterline length of the improved surface effect ship.5. The improved surface effect ship of claim 1 wherein water contacting portions of said port and starboard bow members extend forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least fifteen percent of a waterline length of the improved surface effect ship.6. The improved surface effect ship of claim 1 wherein water contacting portions of said port and starboard bow members extend forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least twenty percent of a waterline length of the improved surface effect ship.7. The improved surface effect ship of claim 1 wherein water contacting portions of said port and starboard bow members extend forward of an average of longitudinal positions of forward water contacting portions of the gas cushion forward seal member by at least twenty-five percent of a waterline length of the improved surface effect ship.8. The improved surface effect ship of claim 1 wherein forward water contacting portions of said port and starboard bow members further comprise artificially pressurized gas cushion portions disposed in their undersides.9. The improved surface effect ship of claim 1 wherein the artificially pressurized gas cushion portions disposed in the undersides of the port and starboard bow members extend forward of an average of longitudinal positions of forward water contacting portions of the gas cushion forward seal member.10. The improved surface effect ship of claim 9 wherein the artificially pressurized gas cushion portions disposed in the undersides of the port and starboard bow members extend forward of an average of longitudinal positions of forward water contacting portions of the gas cushion forward seal member by at least five percent of a waterline length of the improved surface effect ship.11. The improved surface effect ship of claim 9 wherein the artificially pressurized gas cushion portions disposed in the undersides of the port and starboard bow members extend forward of an average of longitudinal positions of forward water contacting portions of the gas cushion forward seal member by at least ten percent of a waterline length of the improved surface effect ship.12. The improved surface effect ship of claim 9 wherein the gas cushion portions disposed in the undersides of the port and starboard bow members diverge either side of vertical sidehull longitudinal planes going aft from their forward portions.13. The improved surface effect ship of claim 12 wherein said vertical longitudinal planes are vertical longitudinal centerline planes of the port and starboard sidehulls.14. The improved surface effect ship of claim 1 wherein said gas cushion forward seal member disposed between the port and starboard sidehulls extends over less than twenty percent of an overall width of the improved surface effect ship.15. The improved surface effect ship of claim 1 wherein the gas cushion forward seal member is less than twenty percent of a width of the improved surface effect ship.16. The improved surface effect ship of claim 1 wherein said gas cushion forward seal member disposed between the port and starboard bow members extends over less than twenty-five percent of an overall width of the improved surface effect ship.17. The improved surface effect ship of claim 1 wherein said gas cushion forward seal member disposed between the port and starboard bow members extends over less than thirty percent of an overall width of the unproved surface effect ship.18. The improved surface effect ship of claim 1 wherein said gas cushion forward seal member disposed between the port and starboard bow members extends over less than thirty-five percent of an overall width of the improved surface effect ship.19. The improved surface effect ship of claim 1 wherein said gas cushion forward seal member disposed between the port and starboard bow members extends over less than forty percent of an overall width of the improved surface effect ship.20. The improved surface effect ship of claim 1 wherein said gas cushion forward seal member disposed between the port and starboard bow members extends over less than fifty percent of an overall width of the improved surface effect ship.21. The improved surface effect ship of claim 1 wherein the forward gas cushion seal is rigid and connects the port and starboard sidehulls.22. The improved surface effect ship of claim 1 wherein longitudinally oriented fluid fences extend downward from upper surfaces of the gas cushion recess to thereby restrict fluid flow in the gas cushion.23. The improved surface effect ship of claim 22 wherein said fluid fences are not in contact with a water surface over a majority of their length.24. The improved surface effect ship of claim 1 wherein the port and starboard bow members diverge either side of vertical sidehull longitudinal planes going aft from forward portions of their bows.25. The improved surface effect ship of claim 24 wherein said vertical sidehull longitudinal planes are vertical sidehull centerline planes of the port and starboard sidehulls.26. The improved surface effect ship of claim 1 wherein a gas cushion aft seal member, as seen in a vertical transverse plane of the improved surface effect ship, comprises at least two inverted-V shaped portions.27. The improved surface effect ship of claim 1 wherein a gas cushion aft seal member, as seen in a vertical transverse plane of the improved surface effect ship, is angled to horizontal over a majority of its width.28. The improved surface effect ship of claim 1 wherein pressurized gas is discharged into the gas cushion proximal an aft end of a gas cushion forward seal.29. The improved surface effect ship of claim 28 wherein pressurized gas discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than fifty percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.30. The improved surface effect ship of claim 28 wherein pressurized gas discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than seventy-five percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.31. The improved surface effect ship of claim 28 wherein pressurized gas discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than ninety percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.32. The improved surface effect ship of claim 28 wherein pressurized gas discharged into the gas cushion proximal an aft end of a gas cushion forward seal at an average velocity of more than 20,000 feet per minute such that discharge velocity of the pressured gas discharged into the gas cushion is sufficiently high to form a gas seal thereby restricting pressurized gas from escaping from the gas cushion.33. The improved surface effect ship of claim 1 wherein there is a third bow member disposed inboard of the port and starboard bow members.34. The improved surface effect ship of claim 1 wherein there is a third bow member and wherein gas cushion forward seal members are disposed between port and starboard bow members and the third bow member.35. The improved surface effect ship of claim 1 wherein said improved surface effect ship is running at a bow up trim angle of less than five degrees.36. The improved surface effect ship of claim 1 wherein said improved surface effect ship is running at a bow up trim angle of less than two and one-half degrees.37. In an improved surface effect ship wherein said improved surface effect ship includes a port sidehull having a port bow member and starboard sidehull having a starboard bow member and is supported upon a water surface in part by at least one artificially pressurized gas cushion, the improvement comprising:a gas cushion forward seal member disposed, at least in its majority, between said port and starboard bow members and wherein said forward seal member is at least in its majority non-moveable in relation to the improved surface effect ship and wherein pressurized gas is discharged rearward into the gas cushion from proximal an aft lower portion of the gas cushion forward seal member to thereby create a pressurized gas seal and wherein said gas cushion forward seal member is no more than fifty percent of a width of the improved surface effect ship. 38. The improved surface effect ship of claim 37 wherein said gas cushion forward seal member is no more than forty percent of a width of the improved surface effect ship.39. The improved surface effect ship of claim 37 wherein said gas cushion forward seal member is no more than thirty-five percent of a width of the improved surface effect ship.40. The improved surface effect ship of claim 37 wherein said gas cushion forward seal member is no more than thirty percent of a width of the improved surface effect ship.41. The improved surface effect ship of claim 37 wherein said gas cushion forward seal member is no more than twenty-five percent of a width of the improved surface effect ship.42. The improved surface effect ship of claim 37 wherein said gas cushion forward seal member is no more than twenty percent of a width of the improved surface effect ship.43. The improved surface effect ship of claim 37 wherein water contacting portions of said port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least five percent of a waterline length of the improved surface effect ship.44. The improved surface effect ship of claim 37 wherein water contacting portions of said port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least ten percent of a waterline length of the improved surface effect ship.45. The improved surface effect ship of claim 37 wherein water contacting portions of said port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least fifteen percent of a waterline length of the improved surface effect ship.46. The improved surface effect ship of claim 37 wherein water contacting portions of said port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least twenty percent of a waterline length of the improved surface effect ship.47. The improved surface effect ship of claim 37 wherein water contacting portions of said port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of water contacting portions of the gas cushion forward seal member by at least twenty-five percent of a waterline length of the improved surface effect ship.48. The improved surface effect ship of claim 37 wherein forward water contacting portions of said port and starboard bow members, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, further comprise artificially pressurized gas cushion portions disposed in their undersides.49. The improved surface effect ship of claim 48 wherein the artificially pressurized gas cushion portions disposed in the undersides of the port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of forward water contacting portions of the gas cushion forward seal member by at least five percent of a waterline length of the improved surface effect ship.50. The improved surface effect ship of claim 48 wherein the artificially pressurized gas cushion portions disposed in the undersides of the port and starboard bow members extend, as seen when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, forward of an average of longitudinal positions of forward water contacting portions of the gas cushion forward seal member by at least ten percent of a waterline length of the improved surface effect ship.51. The improved surface effect ship of claim 48 wherein the gas cushion portions disposed in the undersides of the port and starboard bow members diverge either side of vertical sidehull longitudinal planes going aft from their forward portions.52. The improved surface effect ship of claim 51 wherein said vertical longitudinal planes are vertical longitudinal centerline planes of the port and starboard sidehulls.53. The improved surface effect ship of claim 37 wherein inboard portions of the port and starboard sidehulls are at least partially truncated aft of their bow portions.54. The improved surface effect ship of claim 37 wherein longitudinally oriented fluid fences extend downward from upper surfaces of the gas cushion recess to thereby restrict fluid flow in the gas cushion.55. The improved surface effect ship of claim 54 wherein, when the improved surface effect ship is moving forward at high speed in a calm sea with its gas cushion pressurized, said fluid fences are not in contact with a water surface over a majority of their length.56. The improved surface effect ship of claim 37 wherein a gas cushion aft seal member, as seen in a vertical transverse plane of the improved surface effect ship, comprises at least two inverted-V shaped portions.57. The improved surface effect ship of claim 37 wherein a gas cushion aft seal member, as seen in a vertical transverse plane of the improved surface effect ship, is angled to horizontal over a majority of its width.58. The improved surface effect ship of claim 37 wherein pressurized gas is discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than fifty percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping forward from the gas cushion.59. The improved surface effect ship of claim 37 wherein pressurized gas is discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than seventy-five percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.60. The improved surface effect ship of claim 37 wherein pressurized gas is discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than ninety percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.61. The improved surface effect ship of claim 37 wherein pressurized gas is discharged into the gas cushion proximal an aft end of a gas cushion forward seal at an average velocity of more than 20,000 feet per minute such that discharge velocity of the pressured gas discharged into the gas cushion is sufficiently high to form a gas seal thereby restricting pressurized gas from escaping from the gas cushion.62. The improved surface effect ship of claim 37 which further comprises a third bow member disposed at least in its majority between the port and starboard bow members.63. The improved surface effect ship of claim 37 which further comprises a third bow member and wherein gas cushion forward seal members are disposed between the port and starboard bow members and the third bow member.64. The improved surface effect ship of claim 37 wherein said improved surface effect ship is running at a bow up trim angle of less than five degrees.65. The improved surface effect ship of claim 37 wherein said improved surface effect ship is running at a bow up trim angle of less than two and one-half degrees.66. In an improved surface effect ship wherein said improved surface effect ship includes a port sidehull having a port bow member and a starboard sidehull having a starboard bow member and is supported upon a water surface in part by at least one artificially pressurized gas cushion, the improvement comprising:a third hull member disposed at least in part between the said port and starboard sidehull bow members wherein gas cushion forward seal members are disposed, at least in part, between the port sidehull bow and the third hull member and between the starboard sidehull bow and the third hull member and wherein at least a majority of said forward seal members are non moveable in relation to said improved surface effect ship. 67. The improved surface effect ship of claim 66 wherein pressurized gas is discharged into the gas cushion from proximal aft ends of the gas cushion forward seal members.68. The improved surface effect ship of claim 67 wherein pressurized gas discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than fifty percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.69. The improved surface effect ship of claim 67 wherein pressurized gas discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than seventy-five percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.70. The improved surface effect ship of claim 67 wherein pressurized gas discharged into the gas cushion proximal an aft end of a gas cushion forward seal is made up of more than ninety percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping forward from the gas cushion.71. The improved surface effect ship of claim 67 wherein the pressurized gas discharged into the gas cushion from proximal aft ends of the gas cushion forward seal members is discharged into the gas cushion at average velocities of more than 20,000 feet per minute such that discharge velocity of the pressured gas discharged into the gas cushion is sufficiently high to form a gas seal thereby restricting pressurized gas from escaping from the gas cushion.72. The improved surface effect ship of claim 66 wherein the gas cushion forward seals, as seen in vertical transverse planes of the improved surface effect ship, are angled to horizontal over a majority of their width.73. The improved surface effect ship of claim 66 wherein inboard portions of the port and starboard sidehulls are at least partially truncated aft of their bow portions.74. The improved surface effect ship of claim 66 wherein longitudinally oriented fluid fences extend downward from upper surfaces of the gas cushion recess to thereby restrict fluid flow in the gas cushion.75. The improved surface effect ship of claim 66 wherein forward water contacting portions of said port and starboard bow members further comprise artificially pressurized gas cushion portions disposed in their undersides.76. In an improved surface effect ship wherein said improved surface effect ship includes port sidehull having a port bow member and a starboard sidehull having a starboard bow member and is supported upon a water surface in part by at least one artificially pressurized gas cushion, the improvement comprising:a gas cushion forward seal member disposed, at least in its majority, between said port and starboard bow members and wherein pressurized gas discharged into the gas cushion proximal an aft end of the gas cushion forward seal member is made up of more than fifty percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion and wherein said gas cushion forward seal member is, at least in its majority made up of rigid materials. 77. The improved surface effect ship of claim 76 wherein pressurized gas discharged into the gas cushion proximal an aft end of the gas cushion forward seal member is made up of more than seventy-five percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.78. The improved surface effect ship of claim 76 wherein pressurized gas discharged into the gas cushion proximal an aft end of the gas cushion forward seal member is made up of more than ninety percent dynamic pressure to thereby form a dynamic gas seal that aids in restricting pressurized gas from escaping from the gas cushion.79. The improved surface effect ship of claim 76 wherein inboard sidewalls bordering the gas cushion of said improved surface effect ship are, at least in their majority, aft of the gas cushion forward seal member.

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