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1. 发明授权

US08069673B2 Seal structure for gas turbine combustor 有权
标题翻译：燃气轮机燃烧室密封结构
公开(公告)号：US08069673B2
公开(公告)日：2011-12-06
申请号：US12767055
申请日：2010-04-26
申请人： Nobuhiro Kunitake , Kuniaki Aoyama , Kiyoshi Fujimoto , Masaharu Minami
发明人： Nobuhiro Kunitake , Kuniaki Aoyama , Kiyoshi Fujimoto , Masaharu Minami
IPC分类号： F02C7/20
CPC分类号： F16J15/0887 , F01D9/023 , F01D11/005 , F02C7/28 , F05D2240/57
摘要： Provided is a seal structure, according to the present invention, for sealing opposite surfaces of flanges between adjacent tail ducts, which can be prevented from being worn or aged deteriorated due to a thermal deformation in a high temperature atmosphere or vibration of a gas turbine combustor, and which can maintain a satisfactory sealing function for a long time. The seal structure is characterized in that recess grooves are formed in opposed surfaces of adjacent flanges at the outlet end of tail ducts, striding between the opposed surfaces, a seal assembly composed of a seal member and a leaf spring is inserted in the recess grooves, the seal member has a pair of continuous beads which are arranged facing the inner surfaces, on the combustion gas passage side, of the recess grooves, striding between the opposed surfaces of the flanges within the recess grooves, the leaf spring is arranged so as to be contact with the seal member within the recess grooves so that the beads are pressed against the surfaces on the combustion gas passage side by the resilient force of the leaf spring so as to create seal surfaces.
摘要翻译：根据本发明，提供一种用于密封相邻尾管之间的法兰相对表面的密封结构，其可以防止由于高温气氛中的热变形或燃气轮机燃烧器的振动而被磨损或老化而劣化，长时间保持良好的密封功能。密封结构的特征在于，在尾管的出口端的相邻凸缘的相对的表面上形成凹槽，跨过相对的表面之间，由密封件和片簧组成的密封组件插入凹槽中，所述密封构件具有一对连续的珠，所述一对连续的珠子相对于所述凹槽的燃烧气体通道侧的内表面布置，跨越所述凹槽内的所述凸缘的相对的表面之间，所述板簧布置成与凹槽内的密封构件接触，使得珠被片簧的弹力压靠在燃烧气体通路侧的表面上，从而形成密封面。

2. 发明申请

US20090072497A1 SEAL STRUCTURE FOR GAS TURBINE COMBUSTOR 有权
标题翻译：燃气轮机油封密封结构
公开(公告)号：US20090072497A1
公开(公告)日：2009-03-19
申请号：US11990769
申请日：2006-08-11
申请人： Nobuhiro Kunitake , Kuniaki Aoyama , Masaharu Minami
发明人： Nobuhiro Kunitake , Kuniaki Aoyama , Masaharu Minami
IPC分类号： F16J15/08 , F02C7/28
CPC分类号： F16J15/0887 , F01D9/023 , F01D11/005 , F02C7/28 , F05D2240/57
摘要： Provided is a seal structure, according to the present invention, for sealing opposite surfaces of flanges between adjacent tail ducts, which can be prevented from being worn or aged deteriorated due to a thermal deformation in a high temperature atmosphere or vibration of a gas turbine combustor, and which can maintain a satisfactory sealing function for a long time. The seal structure is characterized in that recess grooves 24, 25 are formed in opposed surfaces t1, t2 of adjacent flanges 21, 22 at the outlet end of tail ducts, striding between the opposed surfaces, a seal assembly 30 composed of a seal member 31 and a leaf spring 32 is inserted in the recess grooves, the seal member has a pair of continuous beads 31a, 31b which are arranged facing the inner surfaces 24a, 25a, on the combustion gas passage side, of the recess grooves, striding between the opposed surfaces of the flanges within the recess grooves, the leaf spring 32 is arranged so as to be made into contact with the seal member 31 within the recess grooves so that the beads are pressed against the surfaces on the combustion gas passage side by the resilient force of the leaf spring so as to create seal surfaces.
摘要翻译：根据本发明，提供一种用于密封相邻尾管之间的法兰相对表面的密封结构，其可以防止由于高温气氛中的热变形或燃气轮机燃烧器的振动而被磨损或老化而劣化，长时间保持良好的密封功能。密封结构的特征在于，凹槽24,25形成在尾管的出口端处的相邻凸缘21,22的相对的表面t1，t2中，跨过相对的表面之间，密封组件30由密封构件31 并且板簧32插入到凹槽中，密封构件具有一对连续的凸缘31a，31b，它们相对于凹槽的燃烧气体通道侧的内表面24a，25a布置，凸缘在凹槽内相对的表面，片弹簧32被布置成与凹槽内的密封件31接触，使得珠被弹性件压在燃烧气体通道侧的表面上从而形成密封面。

3. 发明授权

US07788932B2 Seal structure for gas turbine combustor 有权
标题翻译：燃气轮机燃烧室密封结构
公开(公告)号：US07788932B2
公开(公告)日：2010-09-07
申请号：US11990769
申请日：2006-08-11
申请人： Nobuhiro Kunitake , Kuniaki Aoyama , Kiyoshi Fujimoto , Masaharu Minami
发明人： Nobuhiro Kunitake , Kuniaki Aoyama , Kiyoshi Fujimoto , Masaharu Minami
IPC分类号： F02C7/20
CPC分类号： F16J15/0887 , F01D9/023 , F01D11/005 , F02C7/28 , F05D2240/57
摘要： Provided is a seal structure, according to the present invention, for sealing opposite surfaces of flanges between adjacent tail ducts, which can be prevented from being worn or aged deteriorated due to a thermal deformation in a high temperature atmosphere or vibration of a gas turbine combustor, and which can maintain a satisfactory sealing function for a long time. The seal structure is characterized in that recess grooves are formed in opposed surfaces of adjacent flanges at the outlet end of tail ducts, striding between the opposed surfaces, a seal assembly composed of a seal member and a leaf spring is inserted in the recess grooves, the seal member has a pair of continuous beads which are arranged facing the inner surfaces, on the combustion gas passage side, of the recess grooves, striding between the opposed surfaces of the flanges within the recess grooves, the leaf spring is arranged so as to be contact with the seal member within the recess grooves so that the beads are pressed against the surfaces on the combustion gas passage side by the resilient force of the leaf spring so as to create seal surfaces.
摘要翻译：根据本发明，提供一种用于密封相邻尾管之间的法兰相对表面的密封结构，其可以防止由于高温气氛中的热变形或燃气轮机燃烧器的振动而被磨损或老化而劣化，长时间保持良好的密封功能。密封结构的特征在于，在尾管的出口端的相邻凸缘的相对的表面上形成凹槽，跨过相对的表面之间，由密封件和片簧组成的密封组件插入凹槽中，所述密封构件具有一对连续的珠，所述一对连续的珠子相对于所述凹槽的燃烧气体通道侧的内表面布置，跨越所述凹槽内的所述凸缘的相对的表面之间，所述板簧布置成与凹槽内的密封构件接触，使得珠被片簧的弹力压靠在燃烧气体通路侧的表面上，从而形成密封面。

4. 发明授权

US06565311B2 Gas turbine steam passage seal structure between blade ring and stationary blade 失效
公开(公告)号：US06565311B2
公开(公告)日：2003-05-20
申请号：US09988720
申请日：2001-11-20
申请人： Takeaki Oya , Kazuharu Hirokawa , Tadateru Tanioka , Nobuhiro Kunitake
发明人： Takeaki Oya , Kazuharu Hirokawa , Tadateru Tanioka , Nobuhiro Kunitake
IPC分类号： F01D906
CPC分类号： F01D11/00 , F01D9/065
摘要： Gas turbine steam passage seal structure between a blade ring and a stationary blade absorbs thermal deformation to prevent occurrence of minute gaps to thereby reduce leakage of steam as cooling medium. A blade ring steam passage hole, provided in the blade ring (10), has a stepped portion formed in a middle portion thereof. A stationary blade steam passage hole, provided in the stationary blade (50) so as to oppose the blade ring steam passage hole, has a stepped portion formed in an outer peripheral portion thereof. A cooling steam supply passage connection portion is constructed comprising a seal pipe (25) provided between the blade ring and stationary blade steam passage holes so as to communicate them with each other and a seal urging guide device (44, 47) provided at each of the stepped portions of the blade ring and stationary blade steam passage holes so as to effect a seal while fixedly supporting the seal pipe (25). Leakage of the steam is reduced, temperature lowering of combustion gas is prevented, drive force of a steam turbine is increased and the entire thermal efficiency of the combined cycle power plant can be enhanced.

5. 发明授权

US06887036B2 Turbine and manufacturing method therefor 有权
标题翻译：涡轮及其制造方法
公开(公告)号：US06887036B2
公开(公告)日：2005-05-03
申请号：US10290206
申请日：2002-11-08
申请人： Minoru Ohara , Nobuhiro Kunitake
发明人： Minoru Ohara , Nobuhiro Kunitake
IPC分类号： F01D5/20 , F01D5/28 , F01D11/08 , F01D11/12
CPC分类号： F01D11/12 , F01D11/122 , F05D2230/237 , F05D2300/21 , Y02T50/67
摘要： A tip of rotor blade which rotates is an abradable surface. An inner wall of a shroud as a jacket for the rotor blade is an abrasive surface. A part of an abrasive particle protrudes from the abradable surface. When the tip of the rotor blade which rotates contacts the inner wall of the shroud, the protruding section of the abrasive particle slides with the abrasive surface so as to be ground. By doing this, a turbine which can maintain an appropriate clearance between the rotor blade and the shroud and can be used for a long period under high-temperature conditions with easy restoration and remaking thereof.
摘要翻译：旋转的转子叶片的尖端是可磨损的表面。作为转子叶片的护套的护罩的内壁是研磨表面。研磨颗粒的一部分从可磨损表面突出。当旋转的转子叶片的尖端接触到护罩的内壁时，磨粒的突出部分与研磨表面一起滑动以便被研磨。通过这样做，可以在转子叶片和护罩之间保持适当间隙的涡轮机，并且可以在高温条件下长时间使用，并且易于恢复和重新制造。

6. 发明授权

US06343792B1 Shaft seal and turbine using the same 有权
标题翻译：轴封和涡轮使用相同
公开(公告)号：US06343792B1
公开(公告)日：2002-02-05
申请号：US09525317
申请日：2000-03-13
申请人： Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri , Masahiko Toyoda , Yutaka Ozawa , Akihiro Kawaguchi , Setunori Sakakibara , Zenichi Yoshida , Nobuhiro Kunitake , Takahiro Ohta , Hidehiko Nakane , Eisaku Ito , Yutaka Kawata , Koji Takeshita
发明人： Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri , Masahiko Toyoda , Yutaka Ozawa , Akihiro Kawaguchi , Setunori Sakakibara , Zenichi Yoshida , Nobuhiro Kunitake , Takahiro Ohta , Hidehiko Nakane , Eisaku Ito , Yutaka Kawata , Koji Takeshita
IPC分类号： F16J1548
CPC分类号： F16J15/3288 , F01D11/001 , F05D2240/56 , F16J15/3292 , Y02T50/671
摘要： A shaft seal having a high abrasion resistance is disclosed, by which the leakage of the gas from the high-pressure side to the low-pressure side can be reduced. In the shaft seal, flexible leaves are multi-layered to form a ring shape. The shaft seal is mainly arranged around the rotation shaft of a gas turbine or the like. The relevant turbine comprises a casing, a compressor, a rotation shaft, moving blades attached to the rotation shaft, and stationary blades attached to the casing in a manner such that the stationary blades face the moving blades, wherein the shaft seals are provided between a plurality of stationary blades and the rotation shaft wherein the leaves of each shaft seal contact the rotation shaft. Under the rated operating conditions, the top ends of the leaves slightly separate from the surface of the rotation shaft due to the dynamic pressure generated by the rotation of the rotation shaft. When the turbine is not operated, the top ends of the leaves contact the rotation shaft again due to the elastic restoring force of the leaves.
摘要翻译：公开了一种具有高耐磨性的轴封，能够降低气体从高压侧向低压侧的泄漏。在轴封中，柔性叶片多层形成环形。轴封主要设置在燃气轮机等的旋转轴的周围。相关的涡轮机包括壳体，压缩机，旋转轴，附接到旋转轴的移动叶片和以固定叶片面对动叶片的方式附接到壳体的固定叶片，其中轴密封件设置在多个固定叶片和旋转轴，其中每个轴封的叶片接触旋转轴。在额定工作条件下，由于旋转轴的旋转产生的动态压力，叶片的顶端与旋转轴的表面稍微分开。当涡轮机不工作时，由于叶片的弹性恢复力，叶片的顶端再次与旋转轴接触。

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