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公开(公告)号：US11306619B2
公开(公告)日：2022-04-19
申请号：US16455093
申请日：2019-06-27
发明人： Ross Wilson , Michael G. McCaffrey , John R. Farris , Theodore W. Hall , John J. Korzendorfer , Elizabeth F. Vinson , Jeffrey Michael Jacques , John E. Paul , Alan W. Stoner , Edwin Otero
IPC分类号： F01D25/28 , F01D9/04 , F01D5/26 , F01D9/02 , F01D11/12 , F01D5/24 , F01D11/00 , F01D25/24 , F01D5/28 , F01D5/22 , F16J15/16
摘要： A seal support structure is provided for a circumferential seal. In one embodiment, the seal support structure includes an engine support structure, a seal support, and a shoulder joining the engine support and seal support. The shoulder offsets the engine support from the seal support, and the shoulder and the seal support structure are configured to dampen vibration for the circumferential seal. The seal support structure may employ one or more dampening elements or materials to interoperate with a seal support structure to dampen vibration to a seal system.
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公开(公告)号：US20200256199A1
公开(公告)日：2020-08-13
申请号：US16645013
申请日：2018-09-17
摘要： A vane assembly includes a plurality of vane units and a connecting part. Each vane unit includes a base having a through-hole positioned between opposing longitudinal faces of the base. The connecting part includes a lacing bar that is insertable into and through the through-holes for coupling at least two adjacent vane units into the vane assembly. In the vane assembly the connecting part is arranged through the through holes of the plurality of vane units clamping the vane units on the lacing bar.
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公开(公告)号：US10669864B2
公开(公告)日：2020-06-02
申请号：US15745212
申请日：2016-07-18
发明人： Giuseppe Iurisci , Angelo Grimaldi , Simone Corbo
摘要： An unshrouded turbomachine impeller is disclosed. The impeller comprises a hub and a plurality of sequentially arranged blades. Each blade extends from a blade root at the hub to a blade tip and is comprised of a first blade edge and a second blade edge. A flow vane is formed between each pair of neighboring blades. A connection member extends across each flow vane between neighboring blades and rigidly or monolithically connects a first modal displacement region of a first one of the pair of neighboring blades to a second modal displacement region of a second one of the pair of neighboring blades.
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公开(公告)号：US10557412B2
公开(公告)日：2020-02-11
申请号：US15608547
申请日：2017-05-30
发明人： Paul W. Baumann , Brian Barainca , Rolf Thorsen , Mark E. Simonds , Gary F. Fowler , Hector M. Pinero
摘要： An outer diameter shroud for retaining a stator of a gas turbine engine having an axis includes an annular body positioned around the axis, extending in an axial direction, and defining a plurality of slots each configured to receive a portion of one of a plurality of stators. The outer diameter shroud further includes a shroud flange coupled to the annular body, extending in a direction perpendicular to the annular body, and configured to be fastened to a case of the gas turbine engine.
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公开(公告)号：US10107127B2
公开(公告)日：2018-10-23
申请号：US14793468
申请日：2015-07-07
发明人： James Hill , Brian Merry , Gabriel Suciu
摘要： A gas turbine engine including an axial high pressure compressor having expansion slots in the outer rim of the rotor section. The expansion slots may be positioned between blades of a rotor segment. The fore end of the slots may have an axial seal which is coupled to the inner surface of the outer rim in the first rotor segment, and may comprise a fin configuration. The axial seal may be integral to the inner surface of the outer rim. The compressor may comprise a plurality of expansion slots and axial seals, including in a plurality of rotor segments.
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公开(公告)号：US10066485B2
公开(公告)日：2018-09-04
申请号：US14959442
申请日：2015-12-04
摘要： A turbomachine blade may include an airfoil and a shank coupled to the airfoil. The shank may include a cover plate having a first circumferential face and a second, opposing circumferential face. A radial cooling groove is positioned in the first circumferential face and is configured to allow a cooling fluid to pass from a first radial position to a second, different radial position relative to the platform. The radial cooling groove provides cover plate and shank cooling. In addition, the radial cooling groove may deliver fluid for purging gaps between blade platforms and cover plates, which prevents the ingestion of hot gas from the turbine flowpath.
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公开(公告)号：US09765625B2
公开(公告)日：2017-09-19
申请号：US14283985
申请日：2014-05-21
申请人： MTU Aero Engines AG
发明人： Frank Stiehler , Andreas Hartung
CPC分类号： F01D5/10 , F01D5/14 , F01D5/18 , F01D5/22 , F01D5/225 , F01D5/24 , F01D5/26 , F01D9/02 , F01D25/06 , F05D2260/96 , Y02T50/671 , Y02T50/676 , Y10T29/49336
摘要： A blade (1) for a turbomachine, including an impact chamber (2), a single impulse body (3) being situated in the impact chamber, a clearance (S1+S2) between the impulse body and the impact chamber being at least 10 μm and/or at most 1.5 mm in at least one direction.
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68.发明授权
公开(公告)号：US4919593A
公开(公告)日：1990-04-24
申请号：US238439
申请日：1988-08-30
申请人： Wilmott G. Brown
发明人： Wilmott G. Brown
CPC分类号： F01D5/16 , F01D5/22 , F01D5/24 , Y10S416/02 , Y10S416/50 , Y10T29/49336
摘要： A retrofitted rotor blade having a longer length than an original rotor blade provided for a steam turbine rotor assembly has a tuned airfoil portion with natural resonant frequencies in a plurality of vibrational directions similar to the original rotor blade. Since lengthening the blade causes a decreased and resonant frequency, a unique combination of tuning techniques raises the resonant frequencies to the required levels. The tip of the retrofitted rotor blade is profiled to increase the natural resonant frequency in the second mode of vibration, which is in the axial direction of the rotor.
摘要翻译： 具有比为蒸汽轮机转子组件提供的原始转子叶片更长的长度的改进的转子叶片具有调谐的翼型部分，其具有与原始转子叶片类似的多个振动方向上的固有谐振频率。 由于延长刀片会导致降低的共振频率，调谐技术的独特组合将谐振频率提高到所需的水平。 改装的转子叶片的尖端被成形以增加在转子的轴向方向上的第二振动模式中的固有谐振频率。
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公开(公告)号：US4662824A
公开(公告)日：1987-05-05
申请号：US656187
申请日：1984-10-01
申请人： Ralph J. Ortolano
发明人： Ralph J. Ortolano
CPC分类号： F01D5/24 , Y10S416/50
摘要： The blade rotor structure of an axial flow elastic fluid utilizing machine such as a turbine is divided into groups by a lashing wire structure. The lashing wires of adjacent groups are flexibly connected to each other by sleeves that are held in place without heating so that the sleeves can be used with electroplated blades without the problems associated with brazing.
摘要翻译： 轴流式弹性流体利用机构如涡轮机的叶片转子结构通过捆绑线结构分成组。 相邻组的捆扎线通过保持在适当位置的套筒彼此柔性地连接，而不加热，使得套筒可以与电镀刀片一起使用，而不会与钎焊相关的问题。
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公开(公告)号：US4621976A
公开(公告)日：1986-11-11
申请号：US726260
申请日：1985-04-23
申请人： Larry A. Marshall , David A. Lewis
发明人： Larry A. Marshall , David A. Lewis
CPC分类号： F01D5/24 , F01D25/246 , Y10S416/50
摘要： An integrally cast stator is formed having an annular array of vanes connected at their outer ends to an outer shroud and connected at their inner ends to an inner shroud, said outer shrouds of adjacent cast stators having a snap fit, said inner shroud having an annular C-shaped channel integrally formed within its inner surface by an inwardly extending radial flange and rearwardly extending cylindrical flange. An annular spring damping device having an outer annular arm and an inner annular arm, said damping device being positioned in said annular C-shaped channel with said inner annular arm fixed in said C-shaped channel inwardly of said inner shroud and with said outer annular arm biased against said inner surface of said inner shroud. A modification has two annular C-shaped channels.
摘要翻译： 整体铸造的定子形成为具有环形阵列的叶片，其环形阵列的叶片在其外端处连接到外护罩并在其内端处连接到内护罩，相邻铸造定子的所述外护罩具有卡扣配合，所述内护罩具有环形 C形通道通过向内延伸的径向凸缘和向后延伸的圆柱形凸缘在其内表面内整体形成。 一种具有外部环形臂和内部环形臂的环形弹簧阻尼装置，所述阻尼装置定位在所述环形C形通道中，所述内部环形臂固定在所述内部护罩内部的所述C形通道中，并且所述外部环形 臂抵靠所述内护罩的内表面。 改型具有两个环形C形通道。
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