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公开(公告)号：US20240035387A1
公开(公告)日：2024-02-01
申请号：US17815376
申请日：2022-07-27
CPC分类号： F01D5/26 , F01D9/041 , F05D2240/128 , F05D2260/38 , F05D2260/96
摘要： A vibration damping system includes a vibration damping element for a turbine nozzle or blade. A body opening extends through the turbine nozzle or blade between the tip end and the base end thereof, e.g., through the airfoil among potentially other parts of the nozzle or blade. A vibration damping element includes a plurality of stacked plate members within the body opening. Each plate member is in surface contact with at least one adjacent plate member to cause friction that dampens vibration of the nozzle or blade. The body opening has an inner dimension, and each plate member has an outer dimension sized to frictionally engage the inner dimension of the body opening to damp vibration. Plate members may each include a central opening therein, and a fixed elongated body or cable may extend through the central openings. The damping element may alternatively include a helical metal ribbon spring.
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公开(公告)号：US11724969B2
公开(公告)日：2023-08-15
申请号：US16220822
申请日：2018-12-14
发明人： Matthew Troy Hafner , John McConnell Delvaux , Jason Robert Parolini , Rajendra Kumar Bordia , Quan Li
CPC分类号： C04B41/4584 , C04B41/4543 , C04B41/4545 , C04B41/5031 , C04B41/5035 , C04B41/5045 , F01D5/282 , F05D2240/11 , F05D2300/603 , F05D2300/6033 , F05D2300/611
摘要： A ceramic matrix composite (CMC) component includes at least one seal surface, the at least one seal surface disposed adjacent an interfacing surface for providing a seal therebetween; and a coating disposed on the seal surface. The coating includes an aluminum oxide and/or a silicon dioxide.
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公开(公告)号：US11339666B2
公开(公告)日：2022-05-24
申请号：US16851629
申请日：2020-04-17
发明人： Andrew Clifford Hart , John McConnell Delvaux , Joseph Anthony Weber , James Zhang , Peter de Diego
摘要： An article, such as a turbine blade, includes an airfoil. The airfoil includes a body, the body having an elongated internal cavity extending from a tip of the body. The cavity is defined an internal wall within the body. At least one elongated damping element is disposed in the elongated internal cavity and frictionally engages the internal wall. Thus, the least one elongated damping element is capable of damping vibrations in the article.
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公开(公告)号：US11319816B2
公开(公告)日：2022-05-03
申请号：US16787819
申请日：2020-02-11
摘要： A turbine component includes a root and an airfoil extending from the root to a tip opposite the root. The airfoil forms a leading edge and a trailing edge portion extending to a trailing edge. A plurality of axial cooling channels in the trailing edge portion of the airfoil are arranged to permit axial flow of a cooling fluid from an interior of the turbine component at the trailing edge portion to an exterior of the turbine component at the trailing edge portion. A method of making a turbine component includes forming an airfoil having a trailing edge portion with axial cooling channels. The axial cooling channels are arranged to permit axial flow of a cooling fluid from an interior to an exterior of the turbine component at the trailing edge portion. A method of cooling a turbine component is also disclosed.
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公开(公告)号：US20210324743A1
公开(公告)日：2021-10-21
申请号：US16851629
申请日：2020-04-17
发明人： Andrew Clifford Hart , John McConnell Delvaux , Joseph Anthony Weber , James Zhang , Peter de Diego
摘要： An article, such as a turbine blade, includes an airfoil. The airfoil includes a body, the body having an elongated internal cavity extending from a tip of the body. The cavity is defined an internal wall within the body. At least one elongated damping element is disposed in the elongated internal cavity and frictionally engages the internal wall. Thus, the least one elongated damping element is capable of damping vibrations in the article.
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公开(公告)号：US10815786B2
公开(公告)日：2020-10-27
申请号：US16235079
申请日：2018-12-28
发明人： Matthew Troy Hafner , John McConnell Delvaux , James Zhang , Jeffrey Clarence Jones , Peter de Diego
摘要： A gas turbine that includes a rotor blade that includes an airfoil. The airfoil is defined between a pressure face and a laterally opposed suction face, the pressure face and the suction face extending axially between opposite leading and trailing edges and radially between an outboard tip and a connection with a root of the rotor blade. The airfoil may include non-integral portions in which: a base portion of the airfoil is made from a first material; and a top portion of the airfoil is made from a second material. The airfoil may include a dovetail joint connecting the top portion to the base portion. The dovetail joint may include a dovetail extending from the top portion being received within a complementary dovetail groove formed in the base portion.
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公开(公告)号：US20200208528A1
公开(公告)日：2020-07-02
申请号：US16235114
申请日：2018-12-28
发明人： John McConnell Delvaux , Markus Feigl , Matthew Troy Hafner , Michael Anthony Wondrasek , James Zhang , Peter de Diego
摘要： A gas turbine that includes a rotor blade that includes an airfoil. The airfoil may include non-integral base and top portions. The airfoil may include a pin connector connecting the top portion to the base portion. The pin connector may include: a tab extending from the top portion; a complimentary slot for receiving the tab formed in the base portion; an elongated pin cavity formed through an interior region of the airfoil, where the pin cavity intersects the slot to divide the pin cavity into first and second pin cavity segments; a tab aperture formed through the tab, where the tab aperture is positioned so align with the pin cavity upon the tab being received within the slot; and a locking pin that extends continuously through the first segment of the pin cavity, the tab aperture, and the second segment of the pin cavity.
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公开(公告)号：US20200208527A1
公开(公告)日：2020-07-02
申请号：US16235095
申请日：2018-12-28
发明人： Stanley Kevin Widener , John McConnell Delvaux , Matthew Troy Hafner , James Zhang , Peter de Diego
摘要： A gas turbine that includes a rotor blade that includes an airfoil. The airfoil may include non-integral portions in which: a base portion is made from a first material; and a top portion is made from a second material. The airfoil may include a connector securing the base portion to the top portion of the airfoil, wherein the connector comprises a wire-lock connector that includes: a tab extending from one of the base portion and the top portion; a complimentary slot for receiving the tab formed in the other one of the base portion and the top portion; a first groove formed in a side of the tab; a second groove formed in a side of the slot; a retaining aperture formed cooperatively via an alignment of the first and second grooves upon the tab being received into the slot; and a retaining wire housed within the retaining aperture.
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公开(公告)号：US20200208526A1
公开(公告)日：2020-07-02
申请号：US16235079
申请日：2018-12-28
发明人： Matthew Troy Hafner , John McConnell Delvaux , James Zhang , Jeffrey Clarence Jones , Peter de Diego
IPC分类号： F01D5/14
摘要： A gas turbine that includes a rotor blade that includes an airfoil. The airfoil is defined between a pressure face and a laterally opposed suction face, the pressure face and the suction face extending axially between opposite leading and trailing edges and radially between an outboard tip and a connection with a root of the rotor blade. The airfoil may include non-integral portions in which: a base portion of the airfoil is made from a first material; and a top portion of the airfoil is made from a second material. The airfoil may include a dovetail joint connecting the top portion to the base portion. The dovetail joint may include a dovetail extending from the top portion being received within a complementary dovetail groove formed in the base portion.
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公开(公告)号：US10697326B2
公开(公告)日：2020-06-30
申请号：US15624142
申请日：2017-06-15
摘要： A turbine component assembly is disclosed, including a first component, a second component, and a cantilever spring. The first component is arranged to be disposed adjacent to a hot gas path, and includes a ceramic matrix composite composition. The second component is adjacent to the first component and arranged to be disposed distal from the hot gas path across the first component. The cantilever spring is attached directly to the second component as a compliant contact interface between the first component and the second component. The cantilever spring provides a radial spring compliance between the first component and the second component. During operation, the cantilever spring directly contacts and supports the first component.
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