公开(公告)号：US06736597B2

公开(公告)日：2004-05-18

申请号：US10265765

申请日：2002-10-08

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Shin Koga ,  Takashi Nakano ,  Shin Nishimoto

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Shin Koga ,  Takashi Nakano ,  Shin Nishimoto

IPC分类号： F01D1100

CPC分类号： F16J15/3292

摘要： The present invention reduces the amount of gas which leaks and flows from a high pressure side to a low pressure side of the axis and maintains good sealing performance even at high differential pressures. The invention discloses an axis sealing mechanism comprising casings which are supported inside of the stable portion, a plurality of planar plates, which are mutually spaced around the axis, each of which is fixed to the casings, positioned so that an inner end of each planar plate makes an acute angle with a peripheral surface of the axis and contacts the peripheral surface of the axis over a predetermined length in an axial direction, a high pressure side plate which is arranged at a high pressure side and a low pressure side plate which is arranged at a low pressure side so as to hold the planar plates therebetween and a flexible plate which is arranged between the planar plates and the high pressure side plate, and is flexible in an axial direction. The invention also discloses a turbine which provides the above sealing mechanism.

摘要翻译： 本发明减少了泄漏并从轴的高压侧流向低压侧的气体量，即使在高压差下也能保持良好的密封性能。 本发明公开了一种轴封机构，其包括被支撑在稳定部分内部的壳体，多个平面板，其围绕所述轴线相互间隔开，每个平面板固定到壳体上，定位成使得每个平面 板与轴的外周面成锐角，并且在轴向上与预定长度的轴线的周面接触，高压侧板配置在高压侧，低压侧板为低压侧板 布置在低压侧以便将平板保持在其间，并且设置在平板和高压侧板之间的柔性板，并且在轴向方向上是柔性的。 本发明还公开了一种提供上述密封机构的涡轮机。

公开(公告)号：US09841109B2

公开(公告)日：2017-12-12

申请号：US13818190

申请日：2011-10-26

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Shin Nishimoto ,  Takashi Nakano ,  Masato Araki ,  Tatsuji Takahashi

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Shin Nishimoto ,  Takashi Nakano ,  Masato Araki ,  Tatsuji Takahashi

IPC分类号： F16J15/447 ,  F01D11/02 ,  F16J15/3292

CPC分类号： F16J15/447 ,  F01D11/025 ,  F05D2240/57 ,  F16J15/3292

摘要： A shaft seal structure capable of preventing a seal body of the shaft seal structure of a rotation body from being held in an inclined posture even when the seal body is inclined is provided. It includes, an accommodation body (9), a seal body (12) including thin plate seal pieces (20), and a plate body (17) covering one end in the axial direction (20d) of the seal body (12). A recessed portion (31) recessing in the axis direction, and a protruding portion projecting to the other side from the recessed portion (31) are formed on one of the plate surface (17c) of the plate body (17) and the inner wall surface (9e) of the accommodation body (9). When the protruding portion abuts the other side and a pocket (X), the recessed portion (31) communicates with the pocket (X) and the fluid low pressure region.

公开(公告)号：US09488279B2

公开(公告)日：2016-11-08

申请号：US13583756

申请日：2011-04-28

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

IPC分类号： F04D29/04 ,  B23P15/00 ,  F16J15/32 ,  F01D11/00 ,  F01D11/02

CPC分类号： F16J15/3292 ,  F01D11/001 ,  F01D11/02 ,  F05D2240/59 ,  Y10T29/49826 ,  Y10T29/53

摘要： Provided is a method of fabricating a shaft sealing device, in which a plurality of thin plate pieces arranged in a circumferential direction of a rotation shaft are provided and base ends of the thin plate pieces are mutually connected, the method including a stacking step of stacking the plurality of thin plate pieces in one direction, a connecting step of mutually connecting the base ends of the plurality of stacked thin plate pieces to form a stacked body, and a first smoothing step of bringing one lateral end surface of two lateral end surfaces of the stacked body formed by each end portion in a width direction of the plurality of thin plate pieces in contact with a flat surface to smooth the other lateral end surface.

摘要翻译： 提供一种制造轴封装置的方法，其中设置有沿旋转轴的圆周方向布置的多个薄板片，薄板片的基端相互连接，该方法包括堆叠步骤，堆叠步骤 所述多个薄板块在一个方向上，连接步骤，将所述多个层叠的薄板片的基端相互连接以形成层叠体;以及第一平滑化步骤，将两个侧面端面的一个侧端面 所述层叠体在所述多个薄板片的宽度方向上的每个端部形成为与平坦表面接触，以使另一个侧端面平滑。

公开(公告)号：US09404375B2

公开(公告)日：2016-08-02

申请号：US13518559

申请日：2011-01-28

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

IPC分类号： F01D11/02 ,  F01D11/00 ,  F16J15/32

CPC分类号： F01D11/001 ,  F05D2230/90 ,  F05D2240/59 ,  F16J15/3292

摘要： A shaft seal device includes a seal piece-laminated body with a plurality of thin seal pieces laminated in a circumferential direction along a rotating shaft. Outer ends of the plurality of thin seal pieces in the radial direction are connected to each other. Inner ends of the thin seal pieces in the radial direction are formed as free ends. A small gap is formed between each adjacent pair of the thin seal pieces. A small gap is formed between the rotating shaft and the seal piece-laminated body. A wear-resistant treatment layer is formed on a surface of a portion of each of the thin seal pieces close to the inner end.

摘要翻译： 轴封装置包括：密封片层叠体，其具有沿着旋转轴在圆周方向上层叠的多个薄密封片。 多个薄密封片在径向上的外端彼此连接。 薄密封片在径向上的内端形成为自由端。 在每个相邻的一对薄密封件之间形成小的间隙。 在旋转轴和密封片层叠体之间形成小的间隙。 在靠近内端的每个薄密封件的一部分的表面上形成耐磨处理层。

公开(公告)号：US09046179B2

公开(公告)日：2015-06-02

申请号：US13700220

申请日：2011-06-23

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

IPC分类号： F16J15/44 ,  F16J15/00 ,  F16J15/16 ,  F01D11/00 ,  F16J15/32

CPC分类号： F16J15/16 ,  F01D11/001 ,  F05D2240/59 ,  F16J15/3288 ,  F16J15/3292

摘要： An axial seal structure includes a high-pressure-side regulating member configured to regulate the flow of a fluid from a high-pressure-side region to multiple thin sheet seal pieces arranged with a minute gap between each of the multiple thin sheet seal pieces in a circumferential direction along a high pressure side of the multiple thin sheet seal pieces and along an outer peripheral surface of a rotating shaft. The high-pressure-side regulating member has multiple wires that are flexible. Respective longitudinal directions of the multiple wires are directed towards a direction having a radial component of the rotating shaft. Tips that are radial inner ends of the wires form free ends, and are in close proximity to or in contact with the outer peripheral surface of the rotating shaft. The wires that are adjacent to each other in the circumferential direction come into contact with each other partially in the longitudinal directions.

摘要翻译： 轴向密封结构包括高压侧调节构件，其构造成将流体从高压侧区域流动到多个薄片密封件之间，并且在多个薄片密封件之间以微小间隙布置 沿多个薄片状密封片的高压侧的圆周方向并且沿着旋转轴的外周面。 高压侧调节部件具有柔性的多根线。 多个导线的相应纵向方向指向具有旋转轴的径向分量的方向。 作为线的径向内端的尖端形成自由端，并且与转轴的外周表面紧密接触或接触。 在圆周方向上彼此相邻的电线在纵向上部分地彼此接触。

公开(公告)号：US20130259680A1

公开(公告)日：2013-10-03

申请号：US13994877

申请日：2011-12-20

申请人： Tanehiro Shinohara ,  Hidekazu Uehara ,  Shin Nishimoto ,  Takashi Nakano

发明人： Tanehiro Shinohara ,  Hidekazu Uehara ,  Shin Nishimoto ,  Takashi Nakano

IPC分类号： F01D11/00

CPC分类号： F01D11/00 ,  F01D11/001 ,  F05D2240/59 ,  F16J15/3292

摘要： A shaft sealing device and a rotary machine equipped therewith are provided with a sealing body configured by stacking a plurality of thin sealing pieces; and a low-pressure-side side sealing plate in which a plate surface facing the low-pressure side is pressed against an inner wall surface of the housing facing the direction of the axis by means of the pressure of a fluid applied from a high-pressure side to the low-pressure side. A protrusion for blocking a downward flow toward the inside of the low-pressure-side side sealing plate in the radial direction along the low-pressure side of the sealing body is formed on the inside of the low-pressure-side side sealing plate in the radial direction, and a communication path for guiding the downward flow blocked by means of the protrusion to a low-pressure-side region is formed on the housing.

摘要翻译： 一种轴封装置和配备有该旋转机械的旋转机械设置有通过堆叠多个薄密封片构成的密封体， 以及低压侧侧密封板，其中通过从高压侧施加的流体的压力将面向低压侧的板表面压靠在壳体的面向轴线方向的内壁表面上， 压力侧到低压侧。 在低压侧密封板的内侧形成有用于沿着密封体的低压侧向径向向下流向低压侧密封板的内部的突出部， 在壳体上形成径向，​​以及用于将通过突起阻挡的向下流引导到低压侧区域的连通路径。

公开(公告)号：US08413992B2

公开(公告)日：2013-04-09

申请号：US13203885

申请日：2010-06-09

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

IPC分类号： F01D11/02 ,  F16J15/44

CPC分类号： F16J15/3292 ,  F01D11/001 ,  F05D2240/56

摘要： A shaft seal that is constituted by annularly arranging a plurality of seal segments in the circumferential direction of a rotating shaft, in which each seal segment has a plurality of thin plates that are provided in a predetermined arrangement in the circumferential direction of the rotating shaft, side plates that sandwich the plurality of thin plates from both sides thereof in the axial direction, and retention rings that retain the base ends of the plurality of thin plates and the base ends of the side plates; the distal ends of the thin plates protrude farther toward the rotating shaft than the distal ends of the side plates, and the protrusion length of the distal ends of the thin plates in the vicinity of the end portions in the circumferential direction where adjacent seal segments are connected is set to be less than the protrusion length of the distal ends of the thin plates that are located at the middle of the seal segment in the circumferential direction.

摘要翻译： 一种轴密封件，其在旋转轴的圆周方向上环形地设置多个密​​封段，其中每个密封段具有沿旋转轴的圆周方向以预定布置设置的多个薄板， 在轴向两侧夹着多个薄板的侧板以及保持多个薄板的基端和侧板的基端的保持环， 所述薄板的前端比所述侧板的前端朝向所述旋转轴的前端突出，并且所述薄板的前端在相邻的密封片段的圆周方向的端部附近的突出长度为 被连接的位置设定为小于位于密封段的中间的薄板的远端在周向上的突出长度。

公开(公告)号：US20110068539A1

公开(公告)日：2011-03-24

申请号：US12993886

申请日：2009-04-24

申请人： Takashi Nakano ,  Shin Nishimoto ,  Hidêkazu Uehara

发明人： Takashi Nakano ,  Shin Nishimoto ,  Hidêkazu Uehara

IPC分类号： F16J15/447

CPC分类号： F01D11/025 ,  F01D11/22 ,  F05D2240/55 ,  F16J15/442

摘要： A seal structure that is capable of actively controlling the actuation of a movable seal ring, enhancing sealing performance, and enhancing reliability, is provided. A seal structure (41), which partitions a high-pressure portion and a low-pressure portion including spring-back seal rings (51) on the high-pressure side; including ACC seal rings (49) and fins (71) on the low-pressure side, the ACC seal rings (49) having an adjustable movable seal ring (73) which is a movable seal ring (73) that is movable in a substantially radial direction at a portion thereof and which partitions a high-pressure side steam chamber (43) and a medium-pressure side steam chamber (45) with the fins (71) and a circumferential surface (83); and including a pressure equalizing pipe (47) that connects the low-pressure side of the adjustable movable seal ring (73) to a high-pressure outlet portion (25), is provided with an adjusting pipe (55) that connects, on the high-pressure side steam chamber (43) side of the ACC seal rings (49), a high-pressure dummy (39) to the same high-pressure outlet portion (25) as the medium-pressure side steam chamber (45), and an open/close valve (57) in the adjusting pipe (55).

摘要翻译： 提供了能够主动地控制可动密封环的致动，提高密封性能和提高可靠性的密封结构。 1.一种密封结构（41），其在高压侧分隔有高压部和包括弹性回复密封环（51）的低压部， 包括ACC密封环（49）和低压侧的翅片（71），ACC密封环（49）具有可调节的可移动密封环（73），可移动密封环（73） 在其一部分处径向，并且与翅片（71）和周面（83）隔开高压侧蒸气室（43）和中压侧蒸汽室（45）; 并且包括将可调节可动密封环（73）的低压侧连接到高压出口部（25）的均压管（47），设置有调节管（55），其在 ACC密封环（49）的高压侧蒸汽室（43）侧，与中压侧蒸气室（45）相同的高压出口部分（25）的高压假体（39） 和调节管（55）中的打开/关闭阀（57）。

公开(公告)号：US07261515B2

公开(公告)日：2007-08-28

申请号：US11200128

申请日：2005-08-10

申请人： Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara ,  Takashi Nakano

发明人： Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara ,  Takashi Nakano

IPC分类号： F01D11/00

CPC分类号： F16J15/3292

摘要： A shaft sealing mechanism of an annular shape having at least one divided portion, which is installed in an annular space between a rotor and a stator, includes a group of thin plates. Outer peripheral ends of the thin plates are joined, and inner peripheral free ends come in contact with the rotor in a sliding manner so that a surface of the rotor and the thin plates form an acute angle to partition the annular space into a high-pressure region and a low-pressure region without being joined. At least a low-pressure gap near the divided portion is set to be larger than a low-pressure gap in a circumferential direction other than near the divided portion.

摘要翻译： 具有至少一个分割部分的环形轴封机构，其安装在转子和定子之间的环形空间中，包括一组薄板。 连接薄板的外周端，并且内周自由端以滑动方式与转子接触，使得转子和薄板的表面形成锐角，以将环形空间分隔成高压 区域和低压区域而不连接。 在分割部附近的至少一个低压隙被设定为大于在分割部附近的圆周方向上的低压间隙。

公开(公告)号：US20130154195A1

公开(公告)日：2013-06-20

申请号：US13818190

申请日：2011-10-26

申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Shin Nishimoto ,  Takashi Nakano ,  Masato Araki ,  Tatsuji Takahashi

发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Shin Nishimoto ,  Takashi Nakano ,  Masato Araki ,  Tatsuji Takahashi

IPC分类号： F16J15/447

CPC分类号： F16J15/447 ,  F01D11/025 ,  F05D2240/57 ,  F16J15/3292

摘要： A shaft seal structure capable of preventing a seal body of the shaft seal structure of a rotation body from being held in an inclined posture even when the seal body is inclined is provided. It includes, an accommodation body (9), a seal body (12) including thin plate seal pieces (20), and a plate body (17) covering one end in the axial direction (20d) of the seal body (12). A recessed portion (31) recessing in the axis direction, and a protruding portion projecting to the other side from the recessed portion (31) are formed on one of the plate surface (17c) of the plate body (17) and the inner wall surface (9e) of the accommodation body (9). When the protruding portion abuts the other side and a pocket (X), the recessed portion (31) communicates with the pocket (X) and the fluid low pressure region.

摘要翻译： 提供一种能够防止旋转体的轴封结构的密封体即使在密封体倾斜时也保持倾斜姿势的轴密封结构。 包括容纳体（9），包括薄板密封件（20）的密封体（12）和覆盖密封体（12）的轴向（20d）的一端的板体（17）。 在板体（17）的板面（17c）的一个面上形成有沿轴向凹陷的凹部（31）和从凹部（31）向另一侧突出的突出部， （9）的表面（9e）。 当突出部邻接另一侧和凹部（X）时，凹部（31）与袋（X）和流体低压区域连通。