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    Shaft sealing mechanism
    1.
    发明授权
    Shaft sealing mechanism 有权
    轴封机构

    公开(公告)号：US08025296B2

    公开(公告)日：2011-09-27

    申请号：US11584670

    申请日：2006-10-23

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Hirokazu Shirai ,  Toshio Asada

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Hirokazu Shirai ,  Toshio Asada

    IPC分类号： F16J15/447

    CPC分类号： F16J15/3292 ,  F01D11/00 ,  F05D2240/57

    摘要： In a shaft sealing mechanism which prevents fluid from flowing in an axial direction of a rotor through an annular gap between the rotor and a stator, there are provided a high pressure side plate positioned on a high pressure side region of a plurality of sheets, and a low pressure side plate positioned on a low pressure side region of the plurality of sheets, and construction is such that in a state in which the plurality of sheets is fixed on a stator side, and when under gas pressure, the sheets make contact with each other.

    摘要翻译： 在防止流体通过转子和定子之间的环形间隙流过转子轴向的轴封机构中，设置有位于多个片材的高压侧区域的高压侧板， 位于多个片材的低压侧区域的低压侧板，其结构是在多个片材固定在定子侧的状态下，在气体压力下，片材与 彼此。

    Shaft seal mechanism, shaft seal mechanism assembling structure and large size fluid machine
    3.
    发明授权
    Shaft seal mechanism, shaft seal mechanism assembling structure and large size fluid machine 有权
    轴封机构，轴封机构装配结构和大型流体机

    公开(公告)号：US07226053B2

    公开(公告)日：2007-06-05

    申请号：US10848315

    申请日：2004-05-19

    申请人： Takashi Nakano ,  Hirokazu Shirai ,  Toshio Asada ,  Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara

    发明人： Takashi Nakano ,  Hirokazu Shirai ,  Toshio Asada ,  Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara

    IPC分类号： F01D11/02 ,  F16J15/44 ,  F16J15/447

    CPC分类号： F16J15/3292 ,  F16J15/4472

    摘要： A shaft seal mechanism (leaf seal) by which a desired seal performance can be stably obtained is provided. The shaft seal mechanism comprises a concave groove 71 formed larger than a minimum size of a plate width of thin plates 29 and a fitting piece 61 fitted in a gap between the concave groove 71 and a leaf seal 25. The leaf seal 25 comprises an annular thin plate assembly 29A constructed by the thin plates 29 and a plate spring 56 integrally formed therewith supporting the annular thin plate assembly 29A to be levitated coaxially with a rotating shaft 23. The thin plates 29 have their outer circumferential proximal end side made movable relative to the concave groove 71. A shaft seal mechanism assembling structure is also provided comprising a pressure receiving surface 61b and a lower pressure side plate 54 forming a predetermined gap size between the pressure receiving surface 61b and one side edges of the thin plates 29.

    摘要翻译： 提供了可以稳定地获得期望的密封性能的轴封机构（叶密封件）。 轴封机构包括形成为比薄板29的板宽度的最小尺寸大的凹槽71以及装配在凹槽71和叶片密封件25之间的间隙中的嵌合件61。 叶片密封件25包括由薄板29构成的环形薄板组件29A和与其一体形成的平板弹簧56，支撑与旋转轴23同轴悬挂的环形薄板组件29A。 薄板29的外周近端侧相对于凹槽71可移动。 还提供了一种轴封机构组装结构，包括受压表面61b和在压力接收表面61b和薄板29的一个侧边缘之间形成预定间隙尺寸的下压侧板54。

    Shaft sealing mechanism
    4.
    发明申请
    Shaft sealing mechanism 有权
    轴封机构

    公开(公告)号：US20070102886A1

    公开(公告)日：2007-05-10

    申请号：US11584670

    申请日：2006-10-23

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Hirokazu Shirai ,  Toshio Asada

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Hirokazu Shirai ,  Toshio Asada

    IPC分类号： F01D11/02

    CPC分类号： F16J15/3292 ,  F01D11/00 ,  F05D2240/57

    摘要： There is provided a shaft sealing mechanism in which, even in a case where eccentricity occurs in a parent machine, flutter behavior of the sheets can be reliably prevented, the sheets can be prevented from failing due to fatigue, and also a long life and reliability of the shaft sealing mechanism can be improved. In a shaft sealing mechanism which prevents fluid from flowing in an axial direction of a rotor through an annular gap between the rotor and a stator, there are provided a high pressure side plate positioned on a high pressure side region of a plurality of sheets, and a low pressure side plate positioned on a low pressure side region of a plurality of sheets, and the construction is such that in a state in which the plurality of sheets is fixed on the stator side, and when under gas pressure, the parts make contact with each other.

    摘要翻译： 提供了一种轴密封机构，即使在母机中发生偏心的情况下，也可以可靠地防止片材的颤动现象，能够防止片材因疲劳而发生故障，寿命长，可靠性高 的轴封机构可以提高。 在防止流体通过转子和定子之间的环形间隙流过转子轴向的轴封机构中，设置有位于多个片材的高压侧区域的高压侧板， 位于多个片材的低压侧区域的低压侧板，其结构是在多个片材固定在定子侧的状态下，并且当处于气体压力下时，部件接触 与彼此。

    Shaft seal mechanism, shaft seal mechanism assembling structure and large size fluid machine
    5.
    发明申请
    Shaft seal mechanism, shaft seal mechanism assembling structure and large size fluid machine 有权
    轴封机构，轴封机构装配结构和大型流体机

    公开(公告)号：US20050012275A1

    公开(公告)日：2005-01-20

    申请号：US10848315

    申请日：2004-05-19

    申请人： Takashi Nakano ,  Hirokazu Shirai ,  Toshio Asada ,  Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara

    发明人： Takashi Nakano ,  Hirokazu Shirai ,  Toshio Asada ,  Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara

    IPC分类号： F16J15/32

    CPC分类号： F16J15/3292 ,  F16J15/4472

    摘要： A shaft seal mechanism (leaf seal) by which a desired seal performance can be stably obtained is provided. The shaft seal mechanism comprises a concave groove 71 formed larger than a minimum size of a plate width of thin plates 29 aid a fitting piece 61 fitted in a gap between the concave groove 71 and a leaf seal 25. The leaf seal 25 comprises an annular thin plate assembly 29A constructed by the thin plates 29 and a plate spring 56 integrally formed therewith supporting the annular thin plate assembly 29A to be levitated coaxially with a rotating shaft 23. The thin plates 29 have their outer circumferential proximal end side made movable relative to the concave groove 71. A shaft seal mechanism assembling structure is also provided comprising a pressure receiving surface 61b and a lower pressure side plate 54 forming a predetermined gap size between the pressure receiving surface 61b and one side edges of the thin plates 29.

    摘要翻译： 提供了可以稳定地获得期望的密封性能的轴封机构（叶密封件）。 轴密封机构包括形成为比薄板29的板宽度的最小尺寸大的凹槽71，其有助于装配在凹槽71和叶片密封件25之间的间隙中的装配件61.叶片密封件25包括环形 由薄板29构成的薄板组件29A和与其一体形成的平板弹簧56，其支撑环形薄板组件29A以与旋转轴23同轴地悬挂。薄板29的外周近端侧可相对于 还设置有轴密封机构组装结构，其包括压力接收表面61b和在压力接收表面61b和薄板29的一个侧边缘之间形成预定间隙尺寸的下压侧板54。

    SHAFT SEAL DEVICE
    6.
    发明申请
    SHAFT SEAL DEVICE 审中-公开
    轴封装置

    公开(公告)号：US20110309585A1

    公开(公告)日：2011-12-22

    申请号：US13203874

    申请日：2010-06-08

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

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

    IPC分类号： F16J15/32

    CPC分类号： F16J15/4472 ,  F01D11/02 ,  F05D2240/57 ,  F16J15/3292 ,  F16J15/445

    摘要： A shaft seal device that seals between the outer peripheral surface of a rotating shaft and a stationary member that is provided on the outer peripheral side of the rotating shaft, provided with a thin-plate seal that has a plurality of thin plates that are arranged in the circumferential direction of the rotating shaft and an abradable seal that is arranged at a position differing with the thin-plate seal in the axial direction, and having a free-cutting material that is disposed at either one of the rotating shaft and the stationary member, and a seal fin that projects toward the rotating shaft or stationary member from the other of the rotating shaft and the stationary member.

    摘要翻译： 一种轴封装置，其密封在旋转轴的外周面和设置在所述旋转轴的外周侧的固定构件之间，所述固定构件设置有薄板密封，所述薄板密封具有多个薄板， 旋转轴的圆周方向和布置在与薄板密封件沿轴向不同的位置的可磨损密封件，并且具有设置在旋转轴和固定构件中的任一个上的自由切削材料 以及从旋转轴和固定构件的另一个朝向旋转轴或固定构件突出的密封翅片。

    SHAFT SEAL AND ROTARY MACHINE WITH SAME
    7.
    发明申请
    SHAFT SEAL AND ROTARY MACHINE WITH SAME 有权
    SHAFT密封和旋转机器

    公开(公告)号：US20110316237A1

    公开(公告)日：2011-12-29

    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： F16J15/447

    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片的中央处的圆周方向的薄板的前端的突出长度。

    Shaft sealing mechanism, structure for mounting shaft sealing mechanism on stator, and turbine
    8.
    发明申请
    Shaft sealing mechanism, structure for mounting shaft sealing mechanism on stator, and turbine 有权
    轴密封机构，定子上安装轴封机构的结构和涡轮机

    公开(公告)号：US20060033285A1

    公开(公告)日：2006-02-16

    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： F16J15/44

    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。