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公开(公告)号：US10077713B2
公开(公告)日：2018-09-18
申请号：US15161871
申请日：2016-05-23
Applicant: United Technologies Corporation
Inventor： Daniel L. Gysling , Gregory M. Savela , Robert J. Morris
CPC classification number: F02C7/06 , F01D25/164 , F01D25/183 , F02K3/025 , F05D2260/96 , F16C19/06 , F16C27/045 , F16C2360/23 , F16F15/0237 , F16F2230/30
Abstract: A film damper for a gas turbine engine includes an annular inner member and an annular outer member located radially outboard of the annular inner member, the annular outer member and the annular inner member defining a damper annulus therebetween. A fluid supply passage delivers a flow of fluid into the damper annulus from the annular outer member, and a backflow prevention device is located at the fluid supply passage to prevent backflow of the flow of fluid from the damper annulus into the fluid supply passage.
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公开(公告)号：US09470263B2
公开(公告)日：2016-10-18
申请号：US14626286
申请日：2015-02-19
Applicant: United Technologies Corporation
Inventor： Gregory M. Savela , Robert J. Morris
CPC classification number: F16C27/045 , F02C7/06 , F16C19/06 , F16C2240/54 , F16C2360/23
Abstract: A bearing for a gas turbine engine may comprise a squeeze film damper. A bearing housing may comprise a roughened surface. The roughened surface may increase friction between the bearing housing and the oil in the squeeze film damper. The increased friction may increase the damping force in the squeeze film damper. The increased damping force may prevent oil inertia, and prevent resonant vibrations.
Abstract translation: 用于燃气涡轮发动机的轴承可以包括挤压膜阻尼器。 轴承座可包括粗糙表面。 粗糙表面可能增加轴承壳体与挤压薄膜阻尼器中的油之间的摩擦。 增加的摩擦力可能增加挤压薄膜阻尼器中的阻尼力。 增加的阻尼力可以防止油惯性，并防止共振。
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公开(公告)号：US10287913B2
公开(公告)日：2019-05-14
申请号：US15042346
申请日：2016-02-12
Applicant: United Technologies Corporation
Inventor： Gregory M. Savela
Abstract: A method of bowed rotor start response damping for a gas turbine engine is provided. A spring rate and a damping characteristic of one or more bearing supports in the gas turbine engine are selectively modified while a shaft of the gas turbine engine rotates below a speed which is adversely affected by a bowed rotor condition of the gas turbine engine.
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公开(公告)号：US10240529B2
公开(公告)日：2019-03-26
申请号：US15274465
申请日：2016-09-23
Applicant: United Technologies Corporation
Inventor： Gregory M. Savela
Abstract: An example gas turbine engine includes a turbine and first and second spools coaxial with one another. The first spool is arranged within the second spool and extends between forward and aft ends. The aft end extends axially beyond the second spool and supports the turbine. A housing is arranged downstream from the turbine. First and second bearings are mounted to the aft end of the first spool and supported by the housing portion.
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公开(公告)号：US10436064B2
公开(公告)日：2019-10-08
申请号：US15042346
申请日：2016-02-12
Applicant: United Technologies Corporation
Inventor： Gregory M. Savela
IPC: F01D25/16 , F01D19/00 , F16F15/023 , F16C27/04 , F01D5/02 , F01D15/12 , F01D19/02 , F01D25/18 , F02K3/06
Abstract: A method of bowed rotor start response damping for a gas turbine engine is provided. A spring rate and a damping characteristic of one or more bearing supports in the gas turbine engine are selectively modified while a shaft of the gas turbine engine rotates below a speed which is adversely affected by a bowed rotor condition of the gas turbine engine.
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Patent Agency Ranking
公开(公告)号：US20180274588A1
公开(公告)日：2018-09-27
申请号：US15470252
申请日：2017-03-27
Applicant: United Technologies Corporation
Inventor： David B. Hudson , Gregory M. Savela , Robert J. Morris , Christopher J. Zuck , Daniel L. Gysling , Alan J. Goetschius
Abstract: A squeeze film damper includes a static member and a whirling member positioned adjacent to the static member. A gap is formed between the static member and the whirling member. A pressurized oil reservoir is formed in the gap between the static member and the whirling member. A first low pressure oil reservoir is formed in a first cavity in the whirling member, wherein the first low pressure oil reservoir is positioned on a first end of the pressurized oil reservoir. A second low pressure oil reservoir is formed in a second cavity in the whirling member, wherein the second low pressure oil reservoir is positioned on a second end of the pressurized oil reservoir. A first primary seal is positioned between the first end of the pressurized oil reservoir and the first low pressure oil reservoir, and a second primary seal is positioned between the second end of the pressurized oil reservoir and the second low pressure oil reservoir.
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公开(公告)号：US20170350273A1
公开(公告)日：2017-12-07
申请号：US15173065
申请日：2016-06-03
Applicant: United Technologies Corporation
Inventor： Daniel L. Gysling , Gregory M. Savela , John M. Feiereisen , Robert J. Morris
CPC classification number: F01D25/164 , F02C7/06 , F05D2220/32 , F05D2240/50 , F05D2240/581 , F05D2240/60 , F05D2260/96 , F16C19/06 , F16C27/045 , F16C2360/23
Abstract: A bearing assembly is provided. The bearing assembly includes an inner race configured to couple to a shaft, an outer race disposed around the inner race, and a housing disposed around the outer race. The housing and the outer race define an annulus and a buffer region, and the buffer region defines an axial boundary of the annulus.
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公开(公告)号：US09915174B1
公开(公告)日：2018-03-13
申请号：US15420308
申请日：2017-01-31
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Robert J. Morris , Gregory M. Savela , Daniel L. Gysling , Richard A. Lomenzo
CPC classification number: F01D25/164 , F16C27/045 , F16C33/72 , F16C2360/23 , F16F9/02 , F16F2222/126 , F16F2230/30
Abstract: A bearing assembly is provided. The bearing assembly may include an inner race configured to couple to a shaft, an outer race disposed around the inner race, a bearing support structure coupled to the outer race, and a housing disposed around the bearing support structure. The housing and the bearing support structure may define a squeeze-film damper annulus configured to receive an aerated damping fluid. The aerated damping fluid may be provided from a fluid pump and an air supply port.
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公开(公告)号：US20170335767A1
公开(公告)日：2017-11-23
申请号：US15161871
申请日：2016-05-23
Applicant: United Technologies Corporation
Inventor： Daniel L. Gysling , Gregory M. Savela , Robert J. Morris
CPC classification number: F02C7/06 , F01D25/164 , F01D25/183 , F02K3/025 , F05D2260/96 , F16C19/06 , F16C27/045 , F16C2360/23 , F16F15/0237 , F16F2230/30
Abstract: A film damper for a gas turbine engine includes an annular inner member and an annular outer member located radially outboard of the annular inner member, the annular outer member and the annular inner member defining a damper annulus therebetween. A fluid supply passage delivers a flow of fluid into the damper annulus from the annular outer member, and a backflow prevention device is located at the fluid supply passage to prevent backflow of the flow of fluid from the damper annulus into the fluid supply passage.
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公开(公告)号：US20170009655A1
公开(公告)日：2017-01-12
申请号：US15274465
申请日：2016-09-23
Applicant: United Technologies Corporation
Inventor： Gregory M. Savela
CPC classification number: F02C7/06 , F01D25/162 , F01D25/164 , F02C3/10 , F02C7/20 , F02K3/06 , F05D2240/50 , F05D2260/96 , Y02T50/671
Abstract: An example gas turbine engine includes a turbine and first and second spools coaxial with one another. The first spool is arranged within the second spool and extends between forward and aft ends. The aft end extends axially beyond the second spool and supports the turbine. A housing is arranged downstream from the turbine. First and second bearings are mounted to the aft end of the first spool and supported by the housing portion.
Abstract translation: 示例性燃气涡轮发动机包括涡轮机以及彼此同轴的第一和第二线轴。 第一卷轴布置在第二卷轴内并且在前端和后端之间延伸。 后端轴向延伸超过第二线轴并支撑涡轮机。 外壳设置在涡轮下游。 第一和第二轴承安装到第一线轴的后端并由壳体部分支撑。
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