최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0552625 (2006-12-07) |
등록번호 | US-7748945 (2010-07-26) |
발명자 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 2 인용 특허 : 22 |
An apparatus for sealing a turbine against leakage of a working fluid comprising at least one radially displaceable sealing ring, coaxially disposed about a rotating member of the turbine from a stationary member of the turbine, which sealing ring undergoes radial displacements that are coupled to r
An apparatus for sealing a turbine against leakage of a working fluid comprising at least one radially displaceable sealing ring, coaxially disposed about a rotating member of the turbine from a stationary member of the turbine, which sealing ring undergoes radial displacements that are coupled to radial displacements of the rotating member, such that a design radial clearance is substantially maintained without damage to the apparatus.
I claim: 1. An apparatus for sealing a turbine against leakage of a working fluid, comprising: at least one radially displaceable sealing ring slidably suspended between at least one set of axially displacable suspension devices and a downstream lateral surface of at least one slot in a stationary
I claim: 1. An apparatus for sealing a turbine against leakage of a working fluid, comprising: at least one radially displaceable sealing ring slidably suspended between at least one set of axially displacable suspension devices and a downstream lateral surface of at least one slot in a stationary member of a turbine, wherein the radially displaceable sealing ring is coaxially disposed about a rotating member of the turbine from a stationary member of the turbine, in at least one slot of the stationary member of the turbine, which slot has an upstream lateral surface and a downstream lateral surface, and the radially displaceable sealing ring is slideably suspended from the stationary member of the turbine by the suspension devices, wherein the at least one set of axially displaceable suspension devices apply antiparallel forces to the upstream lateral surface of a head of the radially displaceable sealing ring, and to the downstream lateral surface of the head of the radially displacable sealing ring, wherein the radially displaceable sealing ring is radially displaceable, so that the radially displaceable sealing ring undergoes radial displacements that are coupled to radial displacements of the rotating member, and so that a design radial clearance is substantially maintained without damage to the apparatus or the turbine. 2. The apparatus of claim 1, wherein the design radial clearance is substantially maintained without damage to the apparatus co-extensively with the operational life of the turbine. 3. A combination, comprising: a turbine, including a rotatable member and a stationary member, and the at least one apparatus for sealing the turbine of claim 1. 4. The apparatus of claim 1, wherein the radially displacable sealing ring comprises a body, having throttling elements, a head, and at least one sensing device coupled to the at least one set of suspension devices. 5. The apparatus of claim 4, wherein the sensing device is made of a material having a low coefficient of friction. 6. The apparatus of claim 4, wherein the material of the sensing device demonstrates superior wear characteristics. 7. The apparatus of claim 4, wherein the material of the sensing device minimizes damage to the rotating member during instances of contact. 8. The apparatus of claim 5, wherein the low coefficient of friction material is selected from the group consisting of Stelite® alloy, Nimonic® alloy, carbon and combinations thereof. 9. An apparatus for sealing a turbine against leakage of a working fluid comprising: at least one floating sealing ring, slideably disposed in at least one slot of a stationary member of the turbine, which slot has an upstream lateral surface and a downstream lateral surface, the floating sealing ring comprising a body having throttling elements, a head, and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring, wherein the set of suspension devices suspends the floating sealing ring coaxially about a rotatable member of the turbine at a design radial clearance; and, substantially maintains the floating sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, wherein the at least one floating sealing ring is radially displaceable, so that the at least one floating sealing ring undergoes radial displacements that are coupled to radial displacements of the rotatable member, and so that a design radial clearance is substantially maintained without damage to the apparatus or the turbine. 10. The apparatus of claim 9, wherein the design radial clearance is substantially maintained without damage to the throttling elements co-extensively with the operational life of the turbine. 11. The apparatus of claim 9, wherein a cross section of the floating sealing ring generally has the shape of an inverted T, when the floating sealing ring is radially oriented with respect to a central longitudinal axis of the rotating member of the turbine. 12. The apparatus of claim 9, wherein the floating sealing ring sealing ring is devoid of a dovetail. 13. The apparatus of claim 9, wherein the at least one set of suspension devices comprises a set of springs. 14. The apparatus of claim 13, wherein the springs comprise leaf springs. 15. The apparatus of claim 9, wherein the at least one set of suspension devices comprises any devices that generate opposing antiparallel forces substantially orthogonal to a longitudinal axis of the rotating member. 16. The apparatus of claim 15, wherein the opposing antiparallel forces are respectively transmitted through a first force-transmitting surface and a second force-transmitting surface. 17. The apparatus of claim 16 wherein the antiparallel forces, directly or indirectly, maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 18. The apparatus of claim 16 wherein the antiparallel forces directly or indirectly maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot. 19. The apparatus of claim 16, wherein the antiparallel forces, directly or indirectly, maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot and maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 20. The apparatus of claim 15, wherein the opposing antiparallel forces comprise physical, mechanical, electrical, magnetic, gravitational, hydraulic, or fluidic forces. 21. The apparatus of claim 15, wherein the opposing antiparallel forces suspend the floating sealing ring at the design radial clearance. 22. The apparatus of claim 21, wherein, upon contacting the rotating member, the sensing device transmits a radial component of the force of the contact through the floating sealing ring sealing ring, momentarily overcoming the antiparallel forces exerted by the at least one set of suspension devices and slideably moving the floating sealing ring sealing ring to a new position, such that its actual radial clearance is substantially maintained at the design radial clearance, without any damage to throttling elements. 23. The apparatus of claim 9, wherein the sensing device is disposed among the throttling elements. 24. The apparatus of claim 9, wherein the sensing device comprises an integral extension of the body arising among the throttling elements. 25. The apparatus of claim 9, wherein the sensing device is removeably attachable among the throttling elements. 26. The apparatus of claim 9, wherein the sensing device comprises a removeable replacement of a throttling element. 27. The apparatus of claim 9, wherein the sensing device is comprised of a proximity strip when the sensing device is radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element. 28. The apparatus of claim 27, wherein the proximity strip is in the general shape of an upright “T”. 29. The apparatus of claim 27, wherein the proximity strip is disposed among the throttling elements. 30. The apparatus of claim 27, wherein the proximity strip comprises an integral extension of the body arising among the throttling elements. 31. The apparatus of claim 27, wherein the proximity strip is removeably attachable among the throttling elements. 32. The apparatus of claim 27, wherein the proximity strip comprises a removeable replacement of a throttling element. 33. The apparatus of claim 27, wherein the proximity strip is selected from the group consisting of Stelite® alloy, Nimonic® alloy, carbon, and combinations thereof. 34. The apparatus of claim 9, wherein the floating sealing ring comprises at least two floating ring segments, the floating ring segments being fixedly fastened to one another so as to form a mechanically unitary and continuous floating sealing ring, each floating ring segment comprising a body segment having means for fixedly joining it to another floating ring segment, and throttling elements, a head segment, and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices suspends each floating sealing ring segment coaxially about the rotatable member of the turbine at a design radial clearance and substantially maintains each floating sealing segment at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member. 35. The apparatus of claim 34, wherein the design radial clearance is substantially maintained without damage to the throttling elements, co-extensively with the operational life of the turbine. 36. The apparatus of claim 34, wherein a cross section of the floating sealing ring segment generally has the shape of an inverted T, when the floating sealing ring segment is radially oriented respect to a central longitudinal axis of the rotating member of the turbine. 37. The apparatus of claim 34, wherein the means for fixedly fastening one floating ring segment to another floating ring segment comprises disposing a fastening device in one or more sets of paired alignment holes drilled into complementary positions on matched apposing faces of the sealing ring segments. 38. The apparatus of claim 34, wherein the floating ring segment is devoid of a dovetail. 39. The apparatus of claim 34, wherein the set of suspension devices comprises a set of springs. 40. The apparatus of claim 39, wherein the springs comprise leaf springs. 41. The apparatus of claim 34, wherein the set of suspension devices comprises any devices that generate opposing antiparallel forces substantially parallel to a longitudinal axis of the rotating member. 42. The apparatus of claim 41, wherein the opposing antiparallel forces are respectively transmitted through a first force-transmitting surface and a second force-transmitting surface. 43. The apparatus of claim 42, wherein the antiparallel forces, directly or indirectly, maintain an upstream lateral wall of the head segment in slideable contact with the upstream lateral surface of the slot. 44. The apparatus of claim 42, wherein the antiparallel forces directly or indirectly maintain a downstream lateral wall of the head segment in slideable contact with the downstream lateral surface of the slot. 45. The apparatus of claim 42, wherein the antiparallel forces, directly or indirectly, maintain a downstream lateral wall of the head segment in slideable contact with the downstream lateral surface of the slot and maintain an upstream lateral wall of the head segment in slideable contact with the upstream lateral surface of the slot. 46. The apparatus of claim 41, wherein the opposing antiparallel forces comprise physical, mechanical, electrical, magnetic, gravitational, hydraulic, or fluidic forces. 47. The apparatus of claim 41, wherein the opposing antiparallel forces suspend the floating sealing ring segment at the design radial clearance. 48. The apparatus of claim 41, wherein, upon contacting the rotating member, the sensing device transmits a radial component of the force of the contact through the floating sealing ring segment, momentarily overcoming the antiparallel forces exerted by the set of suspension devices and slideably moving the floating sealing ring segment to a new position, such that its actual radial clearance is maintained at the design radial clearance, without any damage to throttling elements. 49. The apparatus of claim 34, wherein the at least one sensing device is disposed among the throttling elements. 50. The apparatus of claim 34, wherein the at least one sensing device comprises an integral extension of the body segment arising among the throttling elements. 51. The apparatus of claim 34, wherein the at least one sensing device is removeably attachable among the throttling elements. 52. The apparatus of claim 34, wherein the at least one sensing device-comprises a removeable replacement of a throttling element. 53. The apparatus of claim 34, wherein the at least one sensing device is comprised of a proximity strip in the general shape of an upright “T” when radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element. 54. The apparatus of claim 53, wherein the proximity strip is disposed among the throttling elements. 55. The apparatus of claim 53, wherein the proximity strip comprises an integral extension of the body arising among the throttling elements. 56. The apparatus of claim 53, wherein the proximity strip is removeably attachable among the throttling elements. 57. The apparatus of claim 53, wherein the proximity strip comprises a removeable replacement of a throttling element. 58. The apparatus of claim 53, wherein the proximity strip is selected from the group consisting of Stelite® alloy, Nimonic® alloy, carbon and combinations thereof. 59. A combination, comprising: a turbine, including a rotatable member and a stationary member, wherein the stationary member comprises at least one slot, and the apparatus for sealing a turbine against leakage of a working fluid of claim 9. 60. The combination of claim 59, wherein the floating sealing ring comprises: floating ring segments, fixedly fastened to one another so as to form a mechanically unitary and continuous floating sealing ring, each floating ring segment comprising a body segment having means for fixedly joining it to another floating ring segment, and throttling elements, a head segment, and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices suspends each floating sealing ring segment coaxially about the rotatable member of the turbine at a design radial clearance and substantially maintains each floating sealing segment at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member. 61. An apparatus for sealing a turbine against leakage of a working fluid, comprising: a plurality of coaxial and linearly arrayed floating sealing rings, each floating sealing ring comprising a body having throttling elements, a head, which is devoid of a dovetail shape and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices suspends each floating sealing ring coaxially about a rotatable member of the turbine at a design radial clearance and substantially maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member wherein the floating sealing ring is radially displaceable, so that the floating sealing ring undergoes radial displacements that are coupled to radial displacements of the rotating member, and so that a design radial clearance is substantially maintained without damage to the apparatus or the turbine. 62. The apparatus of claim 61, wherein the design radial clearance is substantially maintained without damage to the throttling elements, co-extensively with the operational life of the turbine. 63. The apparatus of claim 61, wherein a cross section of the floating sealing rings generally has the shape of an inverted T, when the floating sealing rings are radially oriented respect to a central longitudinal axis of the rotating member of the turbine. 64. The apparatus of claim 61, wherein the floating sealing ring is devoid of a dovetail. 65. The apparatus of claim 61, wherein the set of suspension devices comprises a set of springs. 66. The apparatus of claim 65, wherein the springs comprise leaf springs. 67. The apparatus of claim 61, wherein the set of suspension devices comprises any devices that generate opposing antiparallel forces substantially parallel to a longitudinal axis of the rotating member. 68. The apparatus of claim 67, wherein the opposing antiparallel forces are respectively transmitted through a first force-transmitting surface and a second force-transmitting surface. 69. The apparatus of claim 68, wherein the antiparallel forces, directly or indirectly, maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 70. The apparatus of claim 68, wherein the antiparallel forces directly or indirectly maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot. 71. The apparatus of claim 68, wherein the antiparallel forces, directly or indirectly, maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot and maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 72. The apparatus of claim 67 wherein the opposing antiparallel forces comprise physical, mechanical, electrical, magnetic, gravitational, hydraulic, or fluidic forces. 73. The apparatus of claim 67, wherein the opposing antiparallel forces suspend the floating sealing ring at the design radial clearance. 74. The apparatus of claim 67, wherein, upon contacting the rotating member, the sensing device transmits a radial component of the force of the contact through the floating sealing ring, momentarily overcoming the antiparallel forces exerted by the set of suspension devices and slideably moving the floating sealing ring to a new position, such that its actual radial clearance is substantially maintained at the design radial clearance, without any damage to throttling elements. 75. The apparatus of claim 61, wherein the sensing device is disposed among the throttling elements. 76. The apparatus of claim 61, wherein the sensing device comprises an integral extension of the body arising among the throttling elements. 77. The apparatus of claim 61, wherein the sensing device is removeably attachable among the throttling elements. 78. The apparatus of claim 61, wherein the sensing device comprises a removeable replacement of a throttling element. 79. The apparatus of claim 61, wherein the sensing device is comprised of a proximity strip in the general shape of an upright “T” when radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element. 80. The apparatus of claim 79, wherein the proximity strip is disposed among the throttling elements. 81. The apparatus of claim 79, wherein the proximity strip comprises an integral extension of the body arising among the throttling elements. 82. The apparatus of claim 79, wherein the proximity strip is removeably attachable among the throttling elements. 83. The apparatus of claim 79, wherein the proximity strip comprises a removeable replacement of a throttling element. 84. The apparatus of claim 79, wherein the proximity strip is selected from the group consisting of Stelite® alloy, Nimonic® alloy, carbon and combinations thereof. 85. A combination, comprising: a turbine, including a rotatable member and a stationary member, wherein the stationary member comprises at least one slot, and the apparatus for sealing a turbine of claim 61. 86. A method for producing a floating sealing ring against leakage of a working fluid from a turbine having a stationary member and a rotating member, the sealing ring being slideably disposable in at least one slot of the stationary member, which slot has an upstream lateral surface and a downstream lateral surface, the method comprising: providing a sealing ring comprising a head and a body having throttling elements extending radially therefrom; providing at least one set of suspension devices that suspend the sealing ring at a design radial clearance, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring; disposing a sensing device among the throttling elements; coupling the sensing device to the set of suspension devices such that the set of suspension devices maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, wherein the at least one floating sealing ring is radially displaceable, so that the at least one floating sealing ring undergoes radial displacements that are coupled to radial displacements of the rotatable member, and so that a design radial clearance is substantially maintained without damage to the apparatus or the turbine. 87. The method of claim 86, wherein the set of suspension devices comprises a set of springs. 88. The method of claim 87 wherein the set of springs comprises leaf springs. 89. The method of claim 86, wherein the set of suspension devices comprises any device that generates opposing antiparallel forces that are substantially orthogonal to a longitudinal axis of the rotating member. 90. The method of claim 89, wherein the opposing antiparallel forces are respectively transmitted through a first force-transmitting surface and a second force-transmitting surface of the set of suspending device. 91. The method of claim 90, wherein the antiparallel forces, directly or indirectly, maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 92. The method of claim 90, wherein the antiparallel forces directly or indirectly maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot. 93. The method of claim 90, wherein the antiparallel forces, directly or indirectly, maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot and maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 94. The method of claim 89, wherein the opposing antiparallel forces comprise physical, mechanical, electrical, magnetic, gravitational, hydraulic, or fluidic forces. 95. The method of claim 89, wherein the opposing antiparallel forces suspend the floating sealing ring at the design radial clearance. 96. The method of claim 89, wherein, upon contacting the rotating member, the sensing device transmits a radial component of the force of the contact through the floating sealing ring, momentarily overcoming the antiparallel forces exerted by the set of suspension devices and slideably moving the floating sealing ring to a new position, such that its actual radial clearance is substantially maintained at the design radial clearance, without any damage to throttling elements. 97. The method of claim 86, wherein the sensing device comprises an integral extension of the body arising among the throttling elements. 98. The method of claim 86, wherein the sensing device is removeably attachable among the throttling elements. 99. The method of claim 86, wherein the sensing device comprises a removeable replacement of a throttling element. 100. The method of claim 86, wherein the sensing device is comprised of a proximity strip in the general shape of an upright “T” when radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element. 101. The method of claim 100, wherein the proximity strip is disposed among the throttling elements. 102. The method of claim 100, wherein the proximity strip comprises an integral extension of the body arising among the throttling elements. 103. The method of claim 100, wherein the proximity strip is removeably attachable among the throttling elements. 104. The method of claim 100, wherein the proximity strip comprises a removeable replacement of a throttling element. 105. The method of claim 100, wherein the proximity strip is selected from the group consisting of Stelite® alloy, Nimonic® alloy, carbon and combinations thereof. 106. A method for sealing a turbine against leakage of a working fluid, the turbine having a rotating member and a stationary member having at least one slot with an upstream lateral surface and a downstream lateral surface, the method comprising: defining a central longitudinal axis about which the rotating member rotates; defining a design radial clearance between a longest throttling element of a floating sealing ring and an outer surface of the rotating member; slideably disposing a floating sealing ring comprising a body having throttling elements, a head which is devoid of a dovetail shape, and at least one sensing device coupled to at least one set of suspension devices, in the slot of the stationary member thereby coaxially suspending the floating sealing ring at the design radial clearance by means of the set of suspension devices; maintaining the floating sealing ring at the design radial clearance; substantially restoring the floating sealing ring to the design radial clearance without damage to any of its throttling elements, whenever the sensing device contacts the rotating member, wherein the set of suspension devices comprises any device that generates opposing antiparallel forces that are substantially parallel to a longitudinal axis of the rotating member, and wherein, upon contacting the rotating member, the sensing device transmits a radial component of the force of the contact through the floating sealing ring, momentarily overcoming the antiparallel forces exerted by the set of suspension devices and slideably moving the floating sealing ring to a new position, such that its actual radial clearance is substantially maintained at the design radial clearance, without any damage to throttling elements. 107. The method of claim 106, wherein the set of suspension devices comprises a set of springs. 108. The method of claim 107 wherein the set of springs comprises leaf springs. 109. The method of claim 106, wherein the opposing antiparallel forces are respectively transmitted through a first force-transmitting surface and a second force-transmitting surface of the set of suspending devices. 110. The method of claim 109, wherein the antiparallel forces, directly or indirectly, maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 111. The method of claim 109, wherein the antiparallel forces directly or indirectly maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot. 112. The method of claim 109, wherein the antiparallel forces, directly or indirectly, maintain a downstream lateral wall of the head in slideable contact with the downstream lateral surface of the slot and maintain an upstream lateral wall of the head in slideable contact with the upstream lateral surface of the slot. 113. The method of claim 106, wherein the opposing antiparallel forces comprise physical, mechanical, electrical, magnetic, gravitational, hydraulic, or fluidic forces. 114. The method of claim 106, wherein the opposing antiparallel forces suspend the sealing ring at the design radial clearance. 115. The method of claim 106, wherein the sensing device comprises an integral extension of the body arising among the throttling elements. 116. The method of claim 106, wherein the sensing device is removeably attachable among the throttling elements. 117. The method of claim 106, wherein the sensing device comprises a removeable replacement of a throttling element. 118. The method of claim 106, wherein the sensing device is comprised of a proximity strip in the general shape of an upright “T” when radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element. 119. The method of claim 118, wherein the proximity strip is disposed among the throttling elements. 120. The method of claim 118, wherein the proximity strip comprises an integral extension of the body arising among the throttling elements. 121. The method of claim 118, wherein the proximity strip is removeably attachable among the throttling elements. 122. The method of claim 118, wherein the proximity strip comprises a removeable replacement of a throttling element. 123. The method of claim 118, wherein the proximity strip is selected from the group consisting of Stelite® alloy, Nimonic® alloy, carbon and combinations thereof. 124. The method of claim 106, wherein the head is disposed within the slot, such that an upstream lateral wall of the head opposes the upstream lateral surface of the slot and a downstream lateral wall of the head opposes the downstream lateral surface of the slot. 125. The method of claim 109, wherein the set of suspension devices is disposed between the upstream lateral surface of the slot and the upstream lateral wall of the head, such that the first force-transmitting surface of the set of suspension devices makes slideable contact with the upstream lateral surface of the slot; the second force-transmitting surface of the set of suspension devices is coincident with the upstream lateral wall of the head; and, the downstream lateral wall of the head makes slideable contact with downstream lateral surface of the slot. 126. A method for suspending a radially displacable sealing ring, comprising: providing at least one radially displaceable sealing ring slidably suspended between at least one set of axially displacable suspension devices and a downstream lateral surface of at least one slot in a stationary member of a turbine, disposing a sensing device among the throttling elements; coupling the sensing device to the set of suspension devices such that the set of suspension devices maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member. 127. The method of claim 126, wherein the sensing device is made of a material having a low coefficient of friction. 128. The method of claim 127, wherein the material of the sensing device demonstrates superior wear characteristics. 129. The method of claim 127, wherein the material of the sensing device minimizes damage to the rotating member during instances of contact. 130. The method of claim 127, wherein the low coefficient of friction material is selected from the group consisting of Stelite® alloy, Nimonic® alloy, carbon and combinations thereof. 131. An apparatus for sealing a turbine against leakage of a working fluid comprising: at least one floating sealing ring, slideably disposed in at least one slot of a stationary member of the turbine, which slot has an upstream lateral surface and a downstream lateral surface, the floating sealing ring comprising a body having throttling elements, a head, and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring, wherein the set of suspension devices suspends the floating sealing ring coaxially about a rotatable member of the turbine at a design radial clearance; and, substantially maintains the floating sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, wherein the set of suspension devices comprises devices that generate opposing antiparallel forces substantially parallel to a longitudinal axis of the rotating member wherein the opposing antiparallel forces suspend the floating sealing ring at the design radial clearance, and wherein, upon contacting the rotating member, the sensing device transmits a radial component of the force of the contact through the floating sealing ring, momentarily overcoming the antiparallel forces exerted by the set of suspension devices and slideably moving the floating sealing ring to a new position, such that its actual radial clearance is substantially maintained at the design radial clearance, without any damage to throttling elements. 132. A combination, comprising: a turbine, including a rotatable member and a stationary member, wherein the stationary member comprises at least one slot: a plurality of coaxial and linearly arrayed floating sealing rings, each floating sealing ring comprising: a body having throttling elements; a head, which is devoid of a dovetail shape; and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices suspends each floating sealing ring coaxially about a rotatable member of the turbine at a design radial clearance and substantially maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member. 133. An apparatus for sealing a turbine against leakage of a working fluid, comprising: at least one floating sealing ring, slideably disposed in at least one slot of a stationary member of the turbine, which slot has an upstream lateral surface and a downstream lateral surface, the floating sealing ring comprising: a body having throttling elements; a head; and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring, wherein the set of suspension devices suspends the floating sealing ring coaxially about a rotatable member of the turbine at a design radial clearance; and, substantially maintains the floating sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, and wherein the sensing device is comprised of a proximity strip in the general shape of an upright “T” when radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element. 134. An apparatus for sealing a turbine against leakage of a working fluid, comprising: a plurality of coaxial and linearly arrayed floating sealing rings, each floating sealing ring comprising a body having throttling elements, a head, which is devoid of a dovetail shape and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices suspends each floating sealing ring coaxially about a rotatable member of the turbine at a design radial clearance and substantially maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, and wherein the sensing device comprises a removeable replacement of a throttling element. 135. A combination, comprising: a turbine, including a rotatable member and a stationary member, wherein the stationary member comprises at least one slot, and an apparatus for sealing a turbine against leakage of a working fluid, comprising: at least one floating sealing ring, slideably disposed in at least one slot of a stationary member of the turbine, which slot has an upstream lateral surface and a downstream lateral surface, the floating sealing ring comprising a body having throttling elements, a head, and at least one sensing device coupled to at least one set of suspension devices, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring, wherein the set of suspension devices suspends the floating sealing ring coaxially about a rotatable member of the turbine at a design radial clearance; and, substantially maintains the floating sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, wherein the floating sealing ring comprises floating ring segments, fixedly fastened to one another so as to form a mechanically unitary and continuous floating sealing ring, each floating ring segment comprising: a body segment having means for fixedly joining it to another floating ring segment; throttling elements; a head segment; and at least one sensing device coupled to at least one set of suspension devices, and wherein the set of suspension devices suspends each floating sealing ring segment coaxially about the rotatable member of the turbine at a design radial clearance and substantially maintains each floating sealing segment at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member. 136. A method for producing a floating sealing ring against leakage of a working fluid from a turbine having a stationary member and a rotating member, the sealing ring being slideably disposable in at least one slot of the stationary member, which slot has an upstream lateral surface and a downstream lateral surface, the method comprising: providing a sealing ring comprising a head and a body having throttling elements extending radially therefrom; providing at least one set of suspension devices that suspend the sealing ring at a design radial clearance, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring; disposing a sensing device among the throttling elements; coupling the sensing device to the set of suspension devices such that the set of suspension devices maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, wherein the set of suspension devices comprises any device that generates opposing antiparallel forces that are substantially orthogonal to a longitudinal axis of the rotating member, wherein, upon contacting the rotating member, the sensing device transmits a radial component of the force of the contact through the floating sealing ring, momentarily overcoming the antiparallel forces exerted by the set of suspension devices and slideably moving the floating sealing ring to a new position, such that its actual radial clearance is substantially maintained at the design radial clearance, without any damage to throttling elements. 137. A method for producing a floating sealing ring against leakage of a working fluid from a turbine having a stationary member and a rotating member, the sealing ring being slideably disposable in at least one slot of the stationary member, which slot has an upstream lateral surface and a downstream lateral surface, the method comprising: providing a sealing ring comprising a head and a body having throttling elements extending radially therefrom; providing at least one set of suspension devices that suspend the sealing ring at a design radial clearance, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring; disposing a sensing device among the throttling elements; coupling the sensing device to the set of suspension devices such that the set of suspension devices maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, wherein the sensing device comprises an integral extension of the body arising among the throttling elements. 138. A method for producing a floating sealing ring against leakage of a working fluid from a turbine having a stationary member and a rotating member, the sealing ring being slideably disposable in at least one slot of the stationary member, which slot has an upstream lateral surface and a downstream lateral surface, the method comprising: providing a sealing ring comprising a head and a body having throttling elements extending radially therefrom; providing at least one set of suspension devices that suspend the sealing ring at a design radial clearance, wherein the set of suspension devices are disposed between the upstream lateral surface of the slot of the stationary member of the turbine and an upstream lateral wall of the head of the sealing ring; disposing a sensing device among the throttling elements; coupling the sensing device to the set of suspension devices such that the set of suspension devices maintains the sealing ring at the design radial clearance without damage to the throttling elements, whenever the sensing device contacts the rotating member, wherein the sensing device is comprised of a proximity strip in the general shape of an upright “T” when radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element. 139. A method for sealing a turbine against leakage of a working fluid, the turbine having a rotating member and a stationary member having at least one slot with an upstream lateral surface and a downstream lateral surface, the method comprising: defining a central longitudinal axis about which the rotating member rotates; defining a design radial clearance between a longest throttling element of a floating sealing ring and an outer surface of the rotating member; slideably disposing a floating sealing ring comprising a body having throttling elements, a head which is devoid of a dovetail shape, and at least one sensing device coupled to at least one set of suspension devices, in the slot of the stationary member thereby coaxially suspending the floating sealing ring at the design radial clearance by means of the set of suspension devices; maintaining the floating sealing ring at the design radial clearance; substantially restoring the floating sealing ring to the design radial clearance without damage to any of its throttling elements, whenever the sensing device contacts the rotating member, wherein the sensing device comprises a removeable replacement of a throttling element. 140. A method for sealing a turbine against leakage of a working fluid, the turbine having a rotating member and a stationary member having at least one slot with an upstream lateral surface and a downstream lateral surface, the method comprising: defining a central longitudinal axis about which the rotating member rotates; defining a design radial clearance between a longest throttling element of a floating sealing ring and an outer surface of the rotating member; slideably disposing a floating sealing ring comprising a body having throttling elements, a head which is devoid of a dovetail shape, and at least one sensing device coupled to at least one set of suspension devices, in the slot of the stationary member thereby coaxially suspending the floating sealing ring at the design radial clearance by means of the set of suspension devices; maintaining the floating sealing ring at the design radial clearance; substantially restoring the floating sealing ring to the design radial clearance without damage to any of its throttling elements, whenever the sensing device contacts the rotating member, wherein the sensing device is comprised of a proximity strip in the general shape of an upright “T” when radially disposed with respect to the rotating member having an exposed length that exceeds the length of a longest throttling element.
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