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公开(公告)号：US11085314B2
公开(公告)日：2021-08-10
申请号：US16271323
申请日：2019-02-08
发明人： Timothy M. Davis , Paul M. Lutjen
摘要： The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a first seal section, a second seal section, and (in some embodiments) a third seal section. Two or three of the seal sections are uncoupled, which allows the uncoupled seal sections to move relative to one another during relative movement between the two components. One or more spring tabs extend from the second seal section and bias the first and third (or in some embodiments, the first and second) seal sections away from one another.
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公开(公告)号：US11073034B2
公开(公告)日：2021-07-27
申请号：US16386640
申请日：2019-04-17
发明人： Paul M. Lutjen , Timothy M. Davis , Mark J. Rogers
摘要： A seal assembly extends along an axis and seals an axial (and/or radial) gap between a first component and a second component. The seal assembly includes a seal carrier and a seal element. The seal element extends axially (and/or radially) between a first portion and a second portion. The first portion of the seal element is slidingly arranged within a slot in an axial end (or a radial side) of the seal carrier. The second portion of the seal element is configured to axially (and/or radially) engage the second component.
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公开(公告)号：US11021983B2
公开(公告)日：2021-06-01
申请号：US16008872
申请日：2018-06-14
摘要： The present disclosure relates generally to a seal between two components. The seal includes a plurality of seal sections including convolutions therein that are inter-engaged with one another to form flexible and resilient seals.
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公开(公告)号：US10830357B2
公开(公告)日：2020-11-10
申请号：US14695981
申请日：2015-04-24
发明人： Michael G. McCaffrey , Jeffrey M. Wittman , Dilip M. Shah , Alan D. Cetel , Timothy M. Davis , Mark J. Rogers
摘要： The present disclosure relates to advanced materials, particularly single crystal grain structures including the formation of single crystal grain structures. Single crystal grain structures offer improved mechanical properties when used with individual components. Improving mechanical properties is favorable for components that are used in applications with high temperature, pressure, and stress. In these applications, mechanical failure is extremely undesirable. Individual components, such as seals, can be designed with a single crystal grain structure in a preferred direction. By selecting a preferred direction, and orienting the single crystal grain structure accordingly, the single crystal grain structure can improve the component's mechanical properties. Single crystal grain structure seals and the method of forming the seals, therefore, offer various improvements to individual components, specifically when the components are designed for high temperature, pressure, and stress applications.
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公开(公告)号：US10731493B2
公开(公告)日：2020-08-04
申请号：US14783048
申请日：2014-04-10
摘要： A seal for sealing a radially outer component of a gas turbine engine stator to a radially inner component thereof includes an axially resilient seal carrier adapted for mounting the seal carrier and including at a radially inner portion thereof, a pair of radially spaced, axially extending, radially resilient jaws adapted to clamp a sealing element such as a rope seal there between in sealing engagement with a radially inner component of the engine stator.
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公开(公告)号：US10465546B2
公开(公告)日：2019-11-05
申请号：US15687900
申请日：2017-08-28
发明人： Mark J. Rogers , Timothy M. Davis
IPC分类号： F01D11/00 , F16J15/3288
摘要： A seal system may comprise a seal cavity defined, at least partially, by a first axial surface and a second axial surface. The second axial surface may be recessed with respect to the first axial surface. A brush seal may be disposed in the seal cavity. The brush seal may comprise a first bristle pack and a backing plate coupled to the first bristle pack. A first group of bristles of the first bristle pack may be radially inward of the first axial surface.
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公开(公告)号：US20190309856A1
公开(公告)日：2019-10-10
申请号：US15946254
申请日：2018-04-05
IPC分类号： F16J15/3288 , F01D11/00
摘要： A brush seal is provided that includes a top plate, a back plate, and a bristle pack. The bristle pack is secured at a joint between the top plate and the back plate. The bristle pack includes a first bristle set extending from the joint, a second bristle set extending from the joint, and a sliding backing plate. The sliding backing plate includes a sliding portion and a support portion. The sliding portion is disposed contiguous with the second bristle set. The support portion has an inner face and a support face. The inner face is in contact with a distal end of the second bristle set. The support face is configured to support at least a portion of the first bristle set. The sliding backing plate is configured to slide relative to the second bristle set.
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公开(公告)号：US20190170006A1
公开(公告)日：2019-06-06
申请号：US16265727
申请日：2019-02-01
发明人： Timothy M. Davis , Paul M. Lutjen
摘要： The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a first seal section and an uncoupled second seal section which allows the first and second seal sections to move relative to one another during relative movement between the two components. A wave spring and/or a rope seal is disposed between the first and second seal sections biases the first and second seal sections away from one another.
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公开(公告)号：US10301961B2
公开(公告)日：2019-05-28
申请号：US14913785
申请日：2014-07-23
发明人： Timothy M. Davis , Brian Duguay
摘要： An active clearance control system of a gas turbine engine includes a multiple of blade outer air seal assemblies and a sync ring with a multiple of graduation sets. Each of the graduation sets is associated with one of the multiple of blade outer air seal assemblies. An active clearance control system of a gas turbine engine includes a sync ring with a multiple of graduation sets. Each of the graduation sets includes a multiple of graduations to define an associated radial position for each of a respective multiple of blade outer air seal assemblies.
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公开(公告)号：US10240473B2
公开(公告)日：2019-03-26
申请号：US14914939
申请日：2014-08-26
发明人： Timothy M. Davis
摘要： The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a first seal section and an uncoupled second seal section which allows the first and second seal sections to move relative to one another during relative movement between the two components.
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