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公开(公告)号：US09933012B1
公开(公告)日：2018-04-03
申请号：US14616990
申请日：2015-02-09
发明人： Joseph Grillo , Kevin Duffy , Ronnie K. Kovacik
CPC分类号： F16C33/605 , F01D25/162 , F01D25/164 , F02C7/06 , F05D2230/64 , F05D2240/50 , F05D2250/31 , F05D2250/36 , F05D2250/37 , F16C19/28 , F16C19/54 , F16C27/04 , F16C27/045 , F16C33/581 , F16C2226/50 , F16C2240/40 , F16C2360/23
摘要： A bearing centering spring includes a cylindrical body with outer rings at each end, wherein each outer ring has outer raceways on the inner surface of the body. There is also a retaining feature on an end of the body and ports through the body that are positioned between the outer rings.
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公开(公告)号：US20170292394A1
公开(公告)日：2017-10-12
申请号：US15096952
申请日：2016-04-12
CPC分类号： F01D11/003 , F01D11/04 , F01D25/16 , F01D25/183 , F02C7/28 , F05D2220/32 , F05D2240/50 , F05D2240/53 , F05D2240/60 , F16C32/0625 , F16C33/741 , F16C2360/23 , F16J15/406
摘要： Aspects of the disclosure are directed to a system associated with an engine of an aircraft, the system comprising: a fluid source that is configured to provide a fluid at a first pressure value, a carbon seal, a seal plate that includes at least one lift-off feature that interfaces to the carbon seal, and a pressure boosting mechanism configured to obtain the fluid from the fluid source, increase the pressure of the fluid to a second pressure value, and provide the fluid at the second pressure value to the at least one lift-off feature.
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公开(公告)号：US20150275761A1
公开(公告)日：2015-10-01
申请号：US14674234
申请日：2015-03-31
发明人： Kevin Duffy , Nasr A. Shuaib
CPC分类号： F02C7/06 , F01D11/003 , F01D11/005 , F01D11/02 , F01D25/125 , F01D25/183 , F02C7/12 , F02C7/28 , F16C19/06 , F16C33/6637 , F16C33/76 , F16C2360/23 , F16J15/4476 , Y02T50/675
摘要： One exemplary embodiment of this disclosure relates to a gas turbine engine. The engine includes a compressor section, a combustor section, a turbine section, and at least one rotatable shaft. The engine further includes a bearing assembly including an inner race, an outer race, and a plurality of rolling elements. A seal assembly is also included. The seal assembly includes a seal plate mounted for rotation with the rotatable shaft. The seal plate establishes a boundary of a tortuous passageway.
摘要翻译： 本公开的一个示例性实施例涉及燃气涡轮发动机。 发动机包括压缩机部分，燃烧器部分，涡轮机部分和至少一个可旋转轴。 发动机还包括轴承组件，其包括内圈，外圈和多个滚动元件。 还包括密封组件。 密封组件包括安装成与可旋转轴一起旋转的密封板。 密封板建立曲折通道的边界。
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公开(公告)号：US11015527B2
公开(公告)日：2021-05-25
申请号：US15821157
申请日：2017-11-22
发明人： Kevin Duffy , Ronnie K. Kovacik , Keven G. Van Duyn , Jonathan F. Zimmitti , Richard J. Rubendall , Michael M. Davis , Joseph G. Colucci , Steven M. Danley , Christopher J. Zuck , Tina Rezvani
摘要： Aspects of the disclosure are directed to a rotatable shaft, and a plurality of bearings coupled to the rotatable shaft, where the plurality of bearings include a first bearing, a second bearing, and a third bearing, where the first bearing defines an axial first bearing centerline, where the second bearing defines an axial second bearing centerline, where the third bearing defines an axial third bearing centerline, and where the axial second bearing centerline is radially offset from the axial first bearing centerline and the axial third bearing centerline.
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公开(公告)号：US10753400B2
公开(公告)日：2020-08-25
申请号：US16138318
申请日：2018-09-21
发明人： Kevin Duffy
摘要： A bearing assembly having an axially extending axis of rotation is provided having an inner ring, an outer ring, and a plurality of bearing elements. The plurality of bearing elements are disposed between the inner ring and the outer ring. The outer ring includes an outer radial surface, an inner radial surface, and a raceway disposed in the inner radial surface. The raceway is defined by a first surface and a second surface, and the first surface intersects with the second surface at a point aft of an axial midpoint of the raceway. The outer ring includes a plurality of apertures that provide a fluid passage between the raceway and an exterior surface of the outer ring. A first end of each of the plurality of apertures is substantially aligned with the intersection of the first surface and the second surface.
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公开(公告)号：US20200096045A1
公开(公告)日：2020-03-26
申请号：US16138318
申请日：2018-09-21
发明人： Kevin Duffy
摘要： A bearing assembly having an axially extending axis of rotation is provided having an inner ring, an outer ring, and a plurality of bearing elements. The plurality of bearing elements are disposed between the inner ring and the outer ring. The outer ring includes an outer radial surface, an inner radial surface, and a raceway disposed in the inner radial surface. The raceway is defined by a first surface and a second surface, and the first surface intersects with the second surface at a point aft of an axial midpoint of the raceway. The outer ring includes a plurality of apertures that provide a fluid passage between the raceway and an exterior surface of the outer ring. A first end of each of the plurality of apertures is substantially aligned with the intersection of the first surface and the second surface.
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公开(公告)号：US20190195089A1
公开(公告)日：2019-06-27
申请号：US15852380
申请日：2017-12-22
发明人： Ronnie K. Kovacik , Kevin Duffy
CPC分类号： F01D25/164 , F05D2220/32 , F05D2240/60 , F16C27/00 , F16C35/04 , F16C2360/23 , F16F1/042 , F16F1/10 , F16F15/1213
摘要： A bearing support assembly includes a bearing assembly, a housing, and a centering spring. The centering spring is coupled to the bearing assembly and the housing. The centering spring includes a plurality of spiral beams. A first of the plurality of spiral beams is defined by a first end and a second end. The first end and the second end correspond to a first circumferential location that is defined relative to a longitudinal centerline of the bearing support assembly.
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公开(公告)号：US20190120254A1
公开(公告)日：2019-04-25
申请号：US15793338
申请日：2017-10-25
发明人： Kevin Duffy
IPC分类号： F04D29/66 , F16C35/077 , F16C27/04 , F16C19/06 , F16F15/027 , F01D25/16 , F01D25/04 , F01D5/22
摘要： A damper assembly according to an example of the present disclosure includes, among other things, a first housing adjacent to a second housing that supports a rotatable gas turbine engine component. The first housing defines first and second fluid passages. The first fluid passage is coupled to a first valve. One of the first and second housings defines first, second and third annular grooves that receive respective first, second and third seal members. The first and second housings define a first annular damper cavity between the first and second seal members and in fluid communication with the first fluid passage, and define a second annular damper cavity between the second and third seal members and in fluid communication with the second fluid passage.
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公开(公告)号：US20180128319A1
公开(公告)日：2018-05-10
申请号：US15343486
申请日：2016-11-04
发明人： Kevin Duffy , Anthony Spagnoletti
CPC分类号： F16C33/766 , F01D25/16 , F01D25/162 , F02C7/06 , F05D2220/32 , F05D2260/605 , F16C33/726 , F16C35/04 , F16C2360/23
摘要： A bearing compartment assembly includes a bearing compartment with a bearing and a plenum, a buffer system that supplies pressure to an exterior of the bearing compartment, and a reactive volume vessel connected to the bearing compartment. The reactive volume vessel has a displaceable member that is movable between two positions, one of which adds additional volume to the bearing compartment.
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公开(公告)号：US20160047422A1
公开(公告)日：2016-02-18
申请号：US14775297
申请日：2014-03-14
发明人： Kevin Duffy
CPC分类号： F16C37/007 , F01D25/164 , F02C7/06 , F16C19/06 , F16C33/586 , F16C33/6659 , F16C33/6681 , F16C2360/23
摘要： A bearing assembly for mounting relative to a housing is provided that includes a bearing ring, a plurality of rotational members, and a bearing ring baffle. The bearing ring has a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of channels disposed in the first axial end of the ring. The bearing ring baffle has a housing surface, an inner radial surface, a first axial end, a second axial end, and a plurality of fins extending out from the second axial end of the baffle. The fins and channels are configured to mate with one another and to create at least one passage there between, and the passage is con figured for the passage of lubricant there through.
摘要翻译： 提供了一种用于相对于壳体安装的轴承组件，其包括轴承环，多个旋转构件和轴承环挡板。 轴承环具有壳体表面，内部径向表面，第一轴向端部，第二轴向端部和布置在环的第一轴向端部中的多个通道。 轴承环挡板具有壳体表面，内部径向表面，第一轴向端部，第二轴向端部和从挡板的第二轴向端部延伸出的多个翅片。 翅片和通道构造成彼此配合并且在其之间形成至少一个通道，并且通道被确定为用于通过润滑剂的通道。
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