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公开(公告)号：US11668198B2
公开(公告)日：2023-06-06
申请号：US16054015
申请日：2018-08-03
IPC分类号： F01D5/28 , C04B35/622 , C04B35/628
CPC分类号： F01D5/288 , C04B35/62222 , C04B35/62847 , C04B35/62863 , C04B35/62868 , C04B35/62873 , F01D5/282 , C04B2235/3418 , C04B2235/386 , C04B2235/3826 , C04B2235/422 , C04B2235/5244 , C04B2235/9669 , F05D2220/32 , F05D2240/12 , F05D2240/30 , F05D2300/222 , F05D2300/6033 , F05D2300/611
摘要： An environmental barrier coating system for a turbine component, including an environmental barrier layer applied to a turbine component substrate containing silicon; the environmental barrier layer comprising an oxide matrix surrounding a fiber-reinforcement structure and a self-healing phase interspersed throughout the oxide matrix; wherein the fiber-reinforcement structure comprises at least one first fiber bundle oriented along a load bearing stress direction of said turbine component substrate; wherein the fiber-reinforcement structure comprises at least one second fiber bundle oriented orthogonal to the at least one first fiber bundle orientation; wherein the fiber-reinforcement structure comprises at least one third fiber woven between the at least one first fiber bundle and the at least one second fiber bundle.
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公开(公告)号：US11261741B2
公开(公告)日：2022-03-01
申请号：US16678927
申请日：2019-11-08
摘要： An airfoil includes an airfoil body that has a trailing edge region. The trailing edge region includes first and second monolithic ceramic exterior walls, a flow discharge passage between the first and second monolithic ceramic exterior walls, a ceramic matrix composite (CMC) liner at least a portion of which is disposed in the flow discharge passage between the first and second monolithic ceramic exterior walls, and an array of pedestals disposed in the flow discharge passage. Each of the flow guides bridges the CMC liner and at least one of the first and second monolithic ceramic exterior walls.
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公开(公告)号：US10941491B2
公开(公告)日：2021-03-09
申请号：US15713758
申请日：2017-09-25
发明人： Ying She , John E. Holowczak
IPC分类号： C23C16/54 , C04B35/628 , D02J1/18 , B65H57/16 , B65H57/18 , C23C16/32 , C23C16/34 , C23C16/455
摘要： A tow coating reactor system includes a reactor for receiving fiber tow, a wedge situated adjacent the reactor and configured to receive the tow at a tip end, such that as the tow moves across the wedge, the wedge spreads the tow into a plurality of sub-tows.
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公开(公告)号：US20190091718A1
公开(公告)日：2019-03-28
申请号：US15713739
申请日：2017-09-25
发明人： Ying She , John E. Holowczak , Robert A. Barth
CPC分类号： B05C9/06 , B05C5/001 , B05C5/0241 , B05C9/14 , B05C19/04 , B29B15/14 , C04B35/80 , C23C16/45506 , C23C16/45591 , C23C16/545 , D06M23/08
摘要： A reactor for continuously coating tow fibers has an outer tubular member, an inner support member spaced from the outer tubular member, a reactant flowing through a space defined by the outer tubular member and the inner support member, and at least one flow promotor located on an outer surface of the inner support member for directing the reactant towards an inner surface of the outer tubular member. A system and a method for coating tow fibers are also described.
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公开(公告)号：US09410428B2
公开(公告)日：2016-08-09
申请号：US13726946
申请日：2012-12-26
CPC分类号： F01D5/025 , F01D5/066 , F01D5/284 , F01D5/34 , F05D2260/37 , F05D2300/175
摘要： A turbomachine includes a rotor hub that has a central opening there through. A shaft extends through the central opening. A clamp is coupled with the shaft and the rotor hub such that the rotor hub is rotatable with the shaft.
摘要翻译： 涡轮机包括转子毂，该转子毂在其中具有中心开口。 轴延伸穿过中心开口。 夹具与轴和转子毂结合，使得转子毂能够与轴一起旋转。
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公开(公告)号：US20190144327A1
公开(公告)日：2019-05-16
申请号：US15809657
申请日：2017-11-10
发明人： John E. Holowczak
IPC分类号： C03C3/04 , C03B23/025 , B64C1/14 , F41H5/26
摘要： A method of making a transparent article includes mixing an oxygen source, a nitrogen source, a magnesium source, a silicon source and a calcium source. The oxygen source, the nitrogen source, the magnesium source, the silicon source, and the calcium source are milled and heated to form a molten oxynitride glass modified by calcium and magnesium. The molten oxynitride glass modified by calcium and magnesium is then cooled to form a transparent body having ballistic resistance with a level of performance satisfying Level IV of National Institute of Justice Standard 0108.01. Transparent articles having transparent bodies formed from the oxynitride glass are also described.
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公开(公告)号：US10227888B2
公开(公告)日：2019-03-12
申请号：US14623412
申请日：2015-02-16
发明人： John E. Holowczak , Brian M. Holley
IPC分类号： F01D17/16 , F01D11/04 , F04D29/057 , F04D29/56 , F04D29/58
摘要： A variable vane system includes an outer platform, an inner casing radially inward from the outer casing and a vane extending between the inner and outer casings defining a vane axis. An inner vane stem is engaged with the inner casing and an outer vane stem is engaged with the outer casing. The system includes a bearing gap defined radially with respect to the vane axis between each of the inner and outer casings and respective vane stems for allowing the vane to rotate about the vane axis for varying angle of attack. The system includes a pressurized air supply inlet in fluid communication with at least one of the bearing gaps to form a stem air bearing to intermittently float at least one of the vane stems for controlled rotation about the vane axis.
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公开(公告)号：US20160237844A1
公开(公告)日：2016-08-18
申请号：US14623412
申请日：2015-02-16
发明人： John E. Holowczak , Brian M. Holley
CPC分类号： F01D17/162 , F01D11/04 , F04D29/057 , F04D29/563 , F04D29/584 , Y02T50/671
摘要： A variable vane system includes an outer platform defining a centerline axis, an inner platform radially inward from the outer platform with respect to the centerline axis and a vane extending between the inner and outer platforms defining a vane axis. The vane has an inner vane stem and an opposed outer vane stem. The inner vane stem is engaged with the inner platform and the outer vane stem is engaged with the outer platform. The system includes a bearing gap defined radially with respect to the vane axis between each of the inner and outer platforms and respective vane stems for allowing the vane to rotate about the vane axis for varying angle of attack. The system includes a pressurized air supply inlet in fluid communication with at least one of the bearing gaps to form a stem air bearing to intermittently float at least one of the vane stems for controlled rotation about the vane axis.
摘要翻译： 可变叶片系统包括限定中心线轴线的外平台，相对于中心线轴线从外平台径向向内的内平台以及在限定叶片轴线的内平台和外平台之间延伸的叶片。 叶片具有内叶片杆和相对的外叶片杆。 内叶片杆与内平台接合，外叶片杆与外平台接合。 该系统包括在每个内平台和外平台之间相对于叶片轴线径向限定的轴承间隙和相应的叶片杆，用于允许叶片围绕叶片轴线旋转以改变迎角。 该系统包括与至少一个轴承间隙流体连通的加压空气供应入口，以形成杆空气轴承，以间歇地浮动叶片杆中的至少一个，以围绕叶片轴线受控旋转。
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公开(公告)号：US11021971B2
公开(公告)日：2021-06-01
申请号：US15025949
申请日：2014-09-17
摘要： A blade for a gas turbine engine includes a fiber reinforced ceramic matrix composite structure that provides an airfoil with an exposed exterior airfoil surface and a refractory structure that provides at least an outer portion of a root secured relative to the airfoil.
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公开(公告)号：US10710154B2
公开(公告)日：2020-07-14
申请号：US15916905
申请日：2018-03-09
发明人： Ryan C. Breneman , John E. Holowczak , John J. Marcin , Ingrid H. Kerscht , Steven J. Bullied , Dustin W. Davis
摘要： A method of removing a core of a cast component includes providing a casting that includes a silica based ceramic core in a temperature controlled closed volume; cycling temperature between a first temperature and a second temperature within the temperature controlled closed volume that repeatedly subjects the silica based ceramic core to a beta-to-alpha cristobalite transition that induces microfractures in the silica based ceramic core; and after the cycling temperature, chemically dissolving the silica based ceramic core from the casting.
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