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公开(公告)号：US20200016702A1
公开(公告)日：2020-01-16
申请号：US16584233
申请日：2019-09-26
Applicant: United Technologies Corporation
Inventor： David A Raulerson , Kevin D. Smith , Zhong Ouyang , Lisa J. Brasche , William J. Brindley , David N. Potter
Abstract: Systems and methods are disclosed herein for repairing components. A material layer may be deposited on a surface of a component. The material layer may cover a cooling hole. A pulsed heat source may heat the component and the material layer. An infrared camera may take a series of images of the component. A location of the cooling hole may be identified based on thermal properties of the component. A removal tool may remove a portion of the material layer in order to expose the cooling hole.
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公开(公告)号：US10274429B2
公开(公告)日：2019-04-30
申请号：US15706958
申请日：2017-09-18
Applicant: United Technologies Corporation
Inventor： Zhong Ouyang , Kevin D. Smith
Abstract: Apparatus and associated methods relate to predicting precursor to coating spallation. Heat is provided to a first surface of a member. A time sequence of thermal images is captured of the first surface and/or a second surface of the member. Each of the images includes a two-dimensional array of image data. Each of the image data of the two-dimensional array of image data corresponds to an xy-coordinate pair. A two-dimensional array of thermal diffusivities is calculated based on the captured time sequence of thermal images. Each of the thermal diffusivities of the two-dimensional array of thermal diffusivities corresponds to the xy-coordinate pair. Each of the calculated thermal diffusivities of the two dimensional array of thermal diffusivities are compared with a predetermined threshold. If the calculated thermal diffusivity is greater than the predetermined threshold, then precursor to coating spallation of the thermal barrier coating at the corresponding xy-coordinate pair is predicted.
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公开(公告)号：US20190086336A1
公开(公告)日：2019-03-21
申请号：US15706958
申请日：2017-09-18
Applicant: United Technologies Corporation
Inventor： Zhong Ouyang , Kevin D. Smith
Abstract: Apparatus and associated methods relate to predicting precursor to coating spallation. Heat is provided to a first surface of a member. A time sequence of thermal images is captured of the first surface and/or a second surface of the member. Each of the images includes a two-dimensional array of image data. Each of the image data of the two-dimensional array of image data corresponds to an xy-coordinate pair. A two-dimensional array of thermal diffusivities is calculated based on the captured time sequence of thermal images. Each of the thermal diffusivities of the two-dimensional array of thermal diffusivities corresponds to the xy-coordinate pair. Each of the calculated thermal diffusivities of the two dimensional array of thermal diffusivities are compared with a predetermined threshold. If the calculated thermal diffusivity is greater than the predetermined threshold, then precursor to coating spallation of the thermal barrier coating at the corresponding xy-coordinate pair is predicted.
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公开(公告)号：US10048133B2
公开(公告)日：2018-08-14
申请号：US14640750
申请日：2015-03-06
Applicant: United Technologies Corporation
Inventor： Kevin D. Smith , David A. Raulerson , Zhong Ouyang , Lisa J. Brasche
Abstract: A thermal inspection system is provided for a gas turbine engine hot section component with a cooling passage. This thermal inspection system includes a fluid subsystem operable to supply a fluid into the cooling passage. The thermal inspection system also includes a thermal camera subsystem operable to monitor a fluid temperature difference of the fluid exiting the cooling passage relative to the input temperature of the fluid supplied to the cooling passage.
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公开(公告)号：US10471552B2
公开(公告)日：2019-11-12
申请号：US15030326
申请日：2015-01-13
Applicant: United Technologies Corporation
Inventor： David A. Raulerson , Kevin D. Smith , Zhong Ouyang , Lisa J. Brasche , William J. Brindley , David N. Potter
Abstract: Systems and methods are disclosed herein for repairing components. A material layer may be deposited on a surface of a component. The material layer may cover a cooling hole. A pulsed heat source may heat the component and the material layer. An infrared camera may take a series of images of the component. A location of the cooling hole may be identified based on thermal properties of the component. A removal tool may remove a portion of the material layer in order to expose the cooling hole.
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Patent Agency Ranking
公开(公告)号：US10247703B2
公开(公告)日：2019-04-02
申请号：US15375557
申请日：2016-12-12
Applicant: United Technologies Corporation
Inventor： Kevin D. Smith , Jonathan P. Sullivan , David A. Raulerson
Abstract: An exemplary method of inspecting a component includes, among other things, securing an inspection probe body relative to a component, using a sensor assembly housed within the inspection probe body to induce an eddy current in a target area of the component, the target area having a target surface that is spaced from the sensor assembly, sensing a parameter of the eddy current in the component using the sensor assembly, and determining a position of the target surface of the component relative to the inspection probe body using the parameter of eddy current from the sensing.
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公开(公告)号：US09964404B2
公开(公告)日：2018-05-08
申请号：US14765010
申请日：2014-02-27
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Zhong Ouyang , David A. Raulerson , Kevin D. Smith , Hector M. Pinero , Jaimie Taraskevich , Jesse R. Boyer
CPC classification number: G01B21/085 , G01J5/0088 , G01J5/0896 , G01J2005/0081 , G01N25/00
Abstract: A method of determining the thickness of an internal wall in a gas turbine engine component includes the steps of utilizing flash thermography to measure a complete thickness of a component between an outer wall and at least one enlarged cooling channel at a location where an outer cooling channel is positioned between the outer wall and the at least one enlarged cooling channel and where at least one member spans the cooling channel, such that the thickness is through the member which spans the outer cooling channel. An outer thickness of the component is measured from the outer wall to an outer wall of the outer cooling channel. A thickness is determined from an inner wall of the outer cooling channel to the at least one enlarged cooling channel by subtracting the measured outer thickness from the complete thickness, and also subtracting a known thickness of the outer cooling channel.
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公开(公告)号：US20160177772A1
公开(公告)日：2016-06-23
申请号：US14640750
申请日：2015-03-06
Applicant: United Technologies Corporation
Inventor： Kevin D. Smith , David A. Raulerson , Zhong Ouyang , Lisa J. Brasche
CPC classification number: G01J5/0037 , F01D5/187 , F05D2260/83 , G01J5/0088 , G01J5/061 , G01J5/0859 , Y02T50/676
Abstract: A thermal inspection system is provided for a gas turbine engine hot section component with a cooling passage. This thermal inspection system includes a fluid subsystem operable to supply a fluid into the cooling passage. The thermal inspection system also includes a thermal camera subsystem operable to monitor a fluid temperate difference of the fluid exiting the cooling passage relative to the input temperature of the fluid supplied to the cooling passage.
Abstract translation: 为具有冷却通道的燃气涡轮发动机热段部件提供热检查系统。 该热检查系统包括可操作以将流体供应到冷却通道中的流体子系统。 热检查系统还包括热摄像机子系统，其可操作以相对于供应到冷却通道的流体的输入温度监测离开冷却通道的流体的温度差。
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公开(公告)号：US20150369596A1
公开(公告)日：2015-12-24
申请号：US14765010
申请日：2014-02-27
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Zhong Ouyang , David A. Raulerson , Kevin D. Smith , Hector M. Pinero , Jaimie Taraskevich , Jesse R. Boyer
CPC classification number: G01B21/085 , G01J5/0088 , G01J5/0896 , G01J2005/0081 , G01N25/00
Abstract: A method of determining the thickness of an internal wall in a gas turbine engine component includes the steps of utilizing flash thermography to measure a complete thickness of a component between an outer wall and at least one enlarged cooling channel at a location where an outer cooling channel is positioned between the outer wall and the at least one enlarged cooling channel and where at least one member spans the cooling channel, such that the thickness is through the member which spans the outer cooling channel. An outer thickness of the component is measured from the outer wall to an outer wall of the outer cooling channel. A thickness is determined from an inner wall of the outer cooling channel to the at least one enlarged cooling channel by subtracting the measured outer thickness from the complete thickness, and also subtracting a known thickness of the outer cooling channel.
Abstract translation: 一种确定燃气涡轮发动机部件中的内壁厚度的方法包括以下步骤：利用闪蒸热成像测量在外壁和至少一个扩大的冷却通道之间的部件的完整厚度，在外部冷却通道 定位在外壁和至少一个扩大的冷却通道之间，并且其中至少一个构件跨越冷却通道，使得厚度穿过跨过外部冷却通道的构件。 从外壁到外部冷却通道的外壁测量该部件的外部厚度。 从外部冷却通道的内壁到至少一个扩大的冷却通道，通过从完整厚度减去所测量的外部厚度，并且还减去外部冷却通道的已知厚度来确定厚度。
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公开(公告)号：US20140091784A1
公开(公告)日：2014-04-03
申请号：US13679571
申请日：2012-11-16
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： David A. Raulerson , Kevin D. Smith
CPC classification number: G01R35/005 , G01R33/12 , H05K1/0277
Abstract: A flex circuit for creating artificial defects uses a thin conductive layer with rectangular slots therein representing defects. A thin insulating over-layer is used to protect the conductive layer as well as an eddy current probe. The flexible circuit is then temporarily attached to the surface of the part or material to be inspected. A feature of the described system is that it is directly scalable to an electric discharge machined (EDM) notch. In an embodiment, a thin conductive layer is used which is scalable to a thicker lower conductive layer like a conventional EDM notch. In this way, a thin conductive artificial defect can electromagnetically represent a thicker albeit less conductive EDM notch. The flexible circuit makes it easier to place multiple notches in complex part geometries, and allows for more accurate relative positioning between slots, e.g., for array and wide coverage probes.
Abstract translation: 用于产生人造缺陷的柔性电路使用其中具有矩形槽的薄导电层代表缺陷。 使用薄的绝缘覆层来保护导电层以及涡流探针。 然后将柔性电路临时附接到要检查的部件或材料的表面上。 所描述的系统的特征在于它可以直接扩展到放电加工（EDM）凹口。 在一个实施例中，使用与传统EDM凹口类似地可扩展到更厚的下导电层的薄导电层。 以这种方式，薄的导电人造缺陷可以电磁地代表较厚的导电性EDM缺口。 柔性电路使得更容易在复杂部件几何形状中放置多个凹口，并且允许例如用于阵列和宽覆盖探针的槽之间的更准确的相对定位。
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