公开(公告)号：US20180038593A1

公开(公告)日：2018-02-08

申请号：US15228029

申请日：2016-08-04

Applicant: United Technologies Corporation

Inventor： San Quach ,  Brian T. Hazel ,  Kaitlin M. Tomeo ,  Robert Selinsky, JR. ,  Aaron S. Butler ,  John S. Tu ,  William F. Werkheiser ,  Jessica L. Serra

IPC: F23R3/00 ,  F02C3/04 ,  F02C7/24

Abstract: A heat shield panel for a gas turbine engine includes a substrate layer having a first substrate surface and a second substrate surface opposite the first substrate surface. The first substrate surface and the second substrate surface define a substrate layer thickness therebetween. One or more thermally protective coating layers are applied to the first substrate surface of the substrate layer. The one or more coating layers have a constant coating layer thickness and the substrate layer thickness tapers along an axial length of the heat shield panel.

公开(公告)号：US20170014968A1

公开(公告)日：2017-01-19

申请号：US14623351

申请日：2015-02-16

Applicant: United Technologies Corporation

Inventor： Bartolomeo Palmieri ,  John P. Rizzo ,  Kaitlin M. Tomeo ,  Alan C. Barron ,  Christopher J. Millea ,  Henry H. Thayer

IPC: B24B29/00 ,  F01D9/02

CPC classification number: B24B29/005 ,  B24B19/14 ,  B24B27/0038 ,  B24B49/16 ,  C23C4/18 ,  F01D5/288 ,  F01D9/02 ,  F05D2220/323 ,  F05D2230/90 ,  F05D2250/621 ,  F05D2300/20

Abstract: A method of polishing an outer surface of a ceramic coated gas turbine engine component includes applying a rotating diamond brush to the outer surface. The brush is configured to achieve a uniform finish of 150 microinches RA or less over the surface. The brush contains diamond impregnated bristles, and is affixed to a rotary head of a robotic arm. A force sensing controller limits brush forces against the component. The component disclosed is a hot section turbine vane designed for directional control of high temperature, high-pressure combustion gases, but the method may be applied to other components utilized in similar aerospace applications. The polished coating provides an improved thermal barrier for maintaining structural integrity of the component in environments having temperatures ranging up to 2,000 degrees Celsius. The method limits abrasive removal of ceramic material to only 0.0005 to 0.00075 inch, and saves time and expense over past practices.

Abstract translation: 陶瓷涂覆的燃气涡轮发动机部件的外表面的抛光方法包括将旋转的金刚石刷施加到外表面。 刷子被配置成在表面上实现150微升RA或更小的均匀整理。 刷子包含金刚石浸渍的刷毛，并且固定到机器人手臂的旋转头部。 力传感控制器限制针对组件的刷子力。 所公开的部件是设计用于高温，高压燃烧气体的方向控制的热段涡轮叶片，但是该方法可以应用于在类似的航空航天应用中使用的其它部件。 抛光的涂层提供了改进的热障，用于在具有高达2000摄氏度的温度的环境中保持部件的结构完整性。 该方法将陶瓷材料的磨料去除仅限于0.0005至0.00075英寸，并节省了与以往做法相比的时间和费用。

公开(公告)号：US10252395B2

公开(公告)日：2019-04-09

申请号：US14623351

申请日：2015-02-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Bartolomeo Palmieri ,  John P. Rizzo, Jr. ,  Kaitlin M. Tomeo ,  Alan C. Barron ,  Christopher J. Millea ,  Henry H. Thayer

IPC: B24B29/00 ,  B24B19/14 ,  B24B27/00 ,  B24B49/16 ,  C23C4/18 ,  F01D5/28 ,  F01D9/02

Abstract: A method of polishing an outer surface of a ceramic coated gas turbine engine component includes applying a rotating diamond brush to the outer surface. The brush is configured to achieve a uniform finish of 150 microinches Ra or less over the surface. The brush contains diamond impregnated bristles, and is affixed to a rotary head of a robotic arm. A force sensing controller limits brush forces against the component. The component disclosed is a hot section turbine vane designed for directional control of high temperature, high-pressure combustion gases, but the method may be applied to other components contained within such aerospace applications. The polished coating provides an improved thermal barrier for maintaining structural integrity of the component in environments having temperatures ranging up to 2,000 degrees Celsius. The method limits abrasive removal of ceramic material to only 0.0005 to 0.00075 inch, and saves time and expense over past practices.