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公开(公告)号：US5575145A
公开(公告)日：1996-11-19
申请号：US332835
申请日：1994-11-01
申请人： Brian P. O'Neill , Tommy A. Eveland
发明人： Brian P. O'Neill , Tommy A. Eveland
CPC分类号： F01D25/285 , F05D2230/64 , F05D2230/70 , Y02T50/672 , Y10T29/49318
摘要： A method for in-field improvement or repair of a stationary gas turbine is carried out by successive removal of the gas turbine discs including its multiplicity of blades (buckets) from the common drive shaft. The overlying ring of tip shoes (shroud) and gas feed nozzles (stationary buckets) are similarly sequentially removed. Each disc is axially and circumferentially index marked with respect to the common drive shaft prior to removal of a portion of the drive shaft and substitution of a dummy drive shaft. The dummy shaft in turn is similarly indexed to the turbine disc index marks. Such marking assures that the turbine discs may then be reassembled to the common drive shaft so that no field rebalancing of the common drive shaft, and its assembled air compressor stages, is required for vibration control. The tip shoes, including the labyrinth knife edge, are then replaced by recoated shoes for control of erosion resistance and progressive abradability of the edges to accommodate centrifugal and thermal expansion of the blade tips. Deposition of the abradable material on the blade tips or erosion of the blades is avoided by reducing the clearance between the tip shoe edges and the blade tips with such progressive hardness of the abradable material on the tip shoes. Such reduction greatly increases efficiency of the engine by enhance of power out put and reduced fuel consumption.
摘要翻译： 固定燃气轮机的现场改进或修理的方法是通过连续地从共用驱动轴上除去包括其多个叶片（铲斗）的燃气涡轮盘来进行的。 顶盖（护罩）和气体供给喷嘴（固定桶）的上覆环类似地顺序地移除。 在移除驱动轴的一部分和替代虚拟驱动轴之前，每个盘在相对于公共驱动轴的轴向和周向上被标记。 虚拟轴依次类似地分配到涡轮盘索引标记上。 这样的标记确保了涡轮盘然后可以被重新组装到公共驱动轴上，使得不需要用于振动控制的公共驱动轴及其组装的空气压缩机级的现场重新平衡。 包括迷宫刀刃在内的尖头鞋被替换的鞋子替代，以控制耐磨性和边缘的逐渐磨损，以适应叶片尖端的离心和热膨胀。 通过以尖端鞋上的可磨损材料的渐进硬度减小尖端靴边缘和刀片尖端之间的间隙，避免了刀片尖端上的可磨损材料的沉积或刀片的侵蚀。 这种减少通过增强功率消耗和降低的燃料消耗大大提高了发动机的效率。
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公开(公告)号：US5267397A
公开(公告)日：1993-12-07
申请号：US965645
申请日：1992-10-23
申请人： David E. Wilcox
发明人： David E. Wilcox
CPC分类号： B63H21/16 , F01D25/285 , F01D5/06 , F05D2230/60 , F05D2230/70 , Y10T29/49318 , Y10T29/4932
摘要： A gas turbine engine compressor module subassembly construction and associated assembly method and tooling includes a threaded inner bore on the first stage compressor adapted to receive a tubular tool that slips axially between the compressor bores and the engine central shaft. Securement of the accessible tooling to the module's stationary structure permits assembly and handling of the module independently of the engine shaft.
摘要翻译： 燃气涡轮发动机压缩机模块子组件结构和相关联的组装方法和工具包括在第一级压缩机上的螺纹内孔，其适于容纳在压缩机孔和发动机中心轴之间轴向滑动的管状工具。 将可访问的工具安装到模块的固定结构可以独立于发动机轴组装和处理模块。
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公开(公告)号：US3942907A
公开(公告)日：1976-03-09
申请号：US546119
申请日：1975-01-31
申请人： Pierre Meylan
发明人： Pierre Meylan
CPC分类号： F01D25/26 , F05D2230/70
摘要： A fluid-flow machine such as a steam turbine including an inner shell surrounding the rotor component of the machine and which is secured to the foundation, and an outer shell surrounding the inner shell and which is composed of three principal components, these being a support frame secured to the foundation, an exhaust duct for the steam or other motive fluid depending from the frame and leading to the condenser, and an exhaust cover above the frame. The inner shell is divided along a horizontal plane passing through the rotor axis into upper and lower hemi-cylinder halves. Each end of the frame includes a lower fixed part incorporating the lower half of the pass-through structure for the rotor shaft and a removable upper part in the form of a yoke beam incorporating the upper half of the shaft pass-through structure. The exhaust cover is divided into two longitudinally extending separable halves joined to each other and to the adjacent surfaces of the support frame by means of fluid-tight connection flanges, so that by disconnecting the flanges and removing the two halves of the exhaust cover, and disconnecting and removing the upper hemi-cylindrical half of the inner shell, and disconnecting and removing the yoke beams at each end of the support frame, the rotor is completely exposed and can be lifted upwardly and removed after the shaft bearings are opened.
摘要翻译： 一种流体动力机，例如蒸汽涡轮机，包括围绕机器的转子部件的内壳并固定在基座上，以及围绕内壳的外壳，其由三个主要部件组成，它们是支撑件 框架固定到基座，用于蒸汽或其他动力流体的排气管道，从框架排出并通向冷凝器，以及在框架上方的排气盖。 内壳沿着通过转子轴线的水平面分成上下半圆半部分。 框架的每个端部包括下部固定部分，其包括用于转子轴的通过结构的下半部分，以及结合有轴穿通结构的上半部的磁轭梁形式的可移除上部。 排气罩被分成两个纵向延伸的可分离的半部，其通过流体密封的连接法兰彼此连接并连接到支撑框架的相邻表面，从而通过断开凸缘并去除排气盖的两半，以及 断开并移除内壳的上半圆柱形半部分，并在支撑框架的两端断开和移除轭梁，转子完全暴露，并可在轴承打开后向上提起并取下。
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公开(公告)号：US20240360790A1
公开(公告)日：2024-10-31
申请号：US18140708
申请日：2023-04-28
发明人： Louis LAVOIE , Danny NOISEUX , Sean WOLCZYK
CPC分类号： F02C7/00 , F02C3/04 , F05D2230/70 , F05D2260/30
摘要： An assembly has: a gas turbine engine including: a compressor including a rotor including blades rotatable about a central axis and disposed in a gas path of the gas turbine engine, a stator including one or more vanes disposed in the gas path, and a compressor case disposed around the stator; a combustor downstream of the compressor along the gas path; and a combustor case surrounding the combustor and secured to the compressor case; and a retainer for interlocking the stator with the compressor case when disassembling the combustor case from the compressor case, the retainer including: a base secured to the compressor case; and a pin extending from the base and radially inwardly through the compressor case via an aperture defined in the compressor case, the pin engaging with the stator to prevent axial movement of the stator relative to the compressor case.
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公开(公告)号：US12000302B2
公开(公告)日：2024-06-04
申请号：US18197209
申请日：2023-05-15
发明人： Carlo Porco , Geoffrey Henriksen , Jason Wedemire , Anthony Mathias , Michael Hunze , Louis Lavoie , Marven Paynter , Dennis Wilkinson
CPC分类号： F01D25/285 , F01D25/24 , F05D2220/323 , F05D2230/644 , F05D2230/70 , F05D2230/72 , F05D2230/80
摘要： An aircraft engine repair tool for installing and/or removing a mid turbine frame from a gas turbine engine is provided. The tool includes a stabilizer configured to support a shaft via a load path different from a load path provided by the mid turbine frame rotatably supporting the shaft about a rotation axis. The tool includes a holder attachable to the mid turbine frame, and a guide movably engageable with the shaft and attachable to the holder. The guide guides movement of the holder and of the mid turbine frame relative to the shaft along the rotation axis, and prevents movement of the holder and the mid turbine frame relative to the shaft transverse to the rotation axis when the mid turbine frame is released from the support structure and attached to the holder, and when the holder is attached to the guide.
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公开(公告)号：US20230374914A1
公开(公告)日：2023-11-23
申请号：US17746541
申请日：2022-05-17
CPC分类号： F01D25/243 , F01D25/28 , F05D2230/64 , F05D2230/70 , F05D2240/14 , F05D2260/31
摘要： A structure for a gas turbine engine includes a first engine component, a second engine component and fasteners. The component apertures include first fastener apertures and intergroup apertures. The first fastener apertures are arranged into a plurality of groups. The first group is formed by N1-number of the first fastener apertures. The second group is formed by N2-number of the first fastener apertures where the N2-number is different than the N1-number. Each of the intergroup apertures is disposed circumferentially between and adjacent a respective circumferentially neighboring pair of the groups. The second engine component includes a surface and second fastener apertures. The surface axially engages the first engine component and covers the intergroup apertures. The fasteners attach the first engine component and the second engine component together. Each of the fasteners is mated with one of the first fastener apertures and one of the second fastener apertures.
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公开(公告)号：US11815027B2
公开(公告)日：2023-11-14
申请号：US17595809
申请日：2020-05-12
发明人： Romain Harold Patrice Pou , Frédéric Dautreppe , Bertrand Romain Adrien Dufour , Frédéric Jacques Eugène Goupil
IPC分类号： F02C7/25
CPC分类号： F02C7/25 , F05D2230/70
摘要： The invention relates to a firewall (112) for a turbomachine (100) auxiliary arm (106). This firewall (112), which has one or more through openings (180) in a thickness direction (Z) of the firewall (112), comprises a fixed portion (120) and a first removable portion (130) extending, in a width direction (Y), orthogonal to said thickness direction (Z), from at least one adjacent opening among the through openings (180), to a first outer edge (190) of the firewall (112). To open this firewall (112) in order to allow access to one or more ducts and/or electrical cables (111) received in the through openings (180), the first removable portion (130) can be dismantled.
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公开(公告)号：US11766722B2
公开(公告)日：2023-09-26
申请号：US17061553
申请日：2020-10-01
发明人： Srikanth Chandrudu Kottilingam , David Edward Schick , Jon Conrad Schaeffer , Steven J. Barnell , Brian Lee Tollison , Yan Cui
IPC分类号： B23P15/04 , B23P19/10 , B22F10/10 , B33Y80/00 , B33Y99/00 , B23P6/00 , B22F3/24 , F01D5/00 , F01D9/04 , B33Y10/00 , B22F5/00 , B22F10/00 , B22F10/20 , B22F10/62 , B22F10/64 , B22F10/66
CPC分类号： B22F10/10 , B22F3/24 , B22F5/009 , B22F10/00 , B22F10/20 , B23P6/005 , B23P15/04 , B23P19/10 , B33Y10/00 , B33Y80/00 , B33Y99/00 , F01D5/005 , F01D9/041 , F01D9/042 , B22F10/62 , B22F10/64 , B22F10/66 , B22F2003/242 , B22F2003/247 , B22F2003/248 , B22F2207/20 , B22F2998/00 , F05D2230/20 , F05D2230/21 , F05D2230/22 , F05D2230/23 , F05D2230/31 , F05D2230/51 , F05D2230/60 , F05D2230/64 , F05D2230/70 , F05D2230/80 , Y02P10/25 , Y02T50/60
摘要： A multi-piece part includes multiple pieces fabricated via different types of fabrication processes, wherein the multiple parts are configured to be coupled to one another to form the assembly. At least one of the multiple parts is fabricated via an additive manufacturing method. The multi-piece part also includes a holder assembly that couples and holds together the multiple pieces of the multi-piece part, wherein the holder assembly comprises a reversible, mechanical-type coupling.
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公开(公告)号：US20230272745A1
公开(公告)日：2023-08-31
申请号：US18142131
申请日：2023-05-02
发明人： Todd A. Davis , Brian P. Cigal
CPC分类号： F02C7/06 , F01D25/285 , F01D25/162 , F01D15/12 , F02K3/06 , F02C7/20 , F02C7/36 , Y10T29/49245 , F05D2230/80 , F05D2230/70 , F05D2230/72 , F05D2230/60 , Y02T50/60
摘要： A gas turbine engine includes a fan that has fan blades wherein the fan delivers airflow to a bypass duct. A gearbox is defined along an engine axis. A low spool is arranged aft of the gearbox and coupled to drive the gearbox. A front center body assembly is defined around the engine axis. A flexible support supports the gearbox relative to the front center body assembly. A bearing package is mounted to the front center body assembly and the low spool. A front wall is mounted to the front center body assembly. The front wall is removable from the front center body assembly to access at least one of the gearbox or the bearing package. The low spool includes a low pressure compressor hub that provides an engagement feature for engaging the bearing package.
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公开(公告)号：US11725542B2
公开(公告)日：2023-08-15
申请号：US17388865
申请日：2021-07-29
发明人： Carlo S. Porco , Geoffrey Henriksen , Jason Wedemire , Anthony Mathias , Michael Hunze , Louis Lavoie , Marven Paynter , Dennis Wilkinson
IPC分类号： F01D25/28
CPC分类号： F01D25/285 , F05D2230/68 , F05D2230/70
摘要： A method is provided for disassembling a gas turbine engine. The gas turbine engine includes a compressor section, a combustor section, a turbine section, a static structure and a bypass duct. The static structure houses and supports the compressor section, the combustor section and the turbine section. The static structure includes a turbine support structure. The bypass duct includes an inner duct wall, an outer duct wall and a bypass flowpath formed radially between the inner duct wall and the outer duct wall. The outer duct wall extends axially along the static structure and overlaps the turbine support structure. During the method, the turbine support structure is removed from the gas turbine engine while the outer duct wall remains installed.
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