公开(公告)号：US10352183B2

公开(公告)日：2019-07-16

申请号：US15137503

申请日：2016-04-25

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Katelyn Kwoka ,  Alan D. Cetel ,  Venkatarama K. Seetharaman ,  Michael G. McCaffrey

IPC: F01D11/08 ,  F01D5/12 ,  F01D9/04 ,  F01D11/00 ,  F01D25/00 ,  F01D25/12 ,  F16J15/3288

Abstract: An embodiment of a turbine assembly includes, among other possible things, a first component including a first component surface, a second component including a second component surface spaced apart from the first component surface, and a brush seal disposed between the first component and the second component. The brush seal includes, among other things, a first bristled region extending in a first direction from a backing plate, and sealingly engaging one of the first component surface and the second component surface. At least one of the backing plate and the first bristled region includes a nickel-based superalloy material having at least 40% of a Ni3(Al,X) precipitate phase, X being a metallic or refractory element other than Al.

公开(公告)号：US10315241B2

公开(公告)日：2019-06-11

申请号：US14748688

申请日：2015-06-24

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Alan D. Cetel ,  John J. Marcin, Jr. ,  Steven J. Bullied ,  Carl R. Verner

IPC: B22D21/00 ,  B21D51/02 ,  C30B11/00 ,  C30B29/52 ,  B23K28/00 ,  B23P15/02

Abstract: A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.

公开(公告)号：US20190107202A1

公开(公告)日：2019-04-11

申请号：US15729966

申请日：2017-10-11

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Pantcho Stoyanov ,  Chris Vargas

IPC: F16J15/28 ,  C22C19/00

Abstract: Aspects are directed to a tribological and creep resistant system configured to operate at temperature in excess of 750° C., comprising: a piston seal that includes a nickel base alloy, where the nickel base alloy includes a Ni3(Al,X) type precipitated phase in an amount greater than 40% by volume. Aspects are directed to a system comprising: a piston seal that includes a cobalt-based alloy. Aspects are directed to a method comprising: heat treating an ingot of a nickel base alloy that includes coarsening a precipitated phase to facilitate forging or wrought forming the ingot, machining the ingot to include a substantially flat surface, and processing the ingot to generate a piston seal.

公开(公告)号：US20180333772A1

公开(公告)日：2018-11-22

申请号：US16049053

申请日：2018-07-30

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Alan D. Cetel

IPC: B22D25/02 ,  B22D19/16 ,  B22D21/02 ,  B22D21/06 ,  B22D27/04 ,  C22C19/05 ,  F01D5/14 ,  F01D5/28

CPC classification number: B22D25/02 ,  B22D19/16 ,  B22D21/025 ,  B22D21/06 ,  B22D27/045 ,  C22C19/057 ,  F01D5/14 ,  F01D5/147 ,  F01D5/28 ,  F05D2220/30 ,  F05D2230/21 ,  F05D2230/211 ,  F05D2300/131 ,  F05D2300/132 ,  F05D2300/133 ,  F05D2300/135 ,  F05D2300/17 ,  F05D2300/606 ,  F05D2300/609 ,  Y10T403/478

Abstract: A blade has an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The blade has a compositional variation along the airfoil.

公开(公告)号：US20180266262A1

公开(公告)日：2018-09-20

申请号：US15980855

申请日：2018-05-16

Applicant: United Technologies Corporation

Inventor： Alan D. Cetel ,  Dilip M. Shah ,  Eric A. Hudson ,  Raymond Surace

IPC: F01D11/00 ,  F01D25/00

CPC classification number: F01D11/005 ,  C22C19/00 ,  F01D25/005 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2230/26 ,  F05D2230/90

Abstract: Aspects of the disclosure are directed to a seal configured to interface with at least a first component and a second component of a gas turbine engine. A method for forming the seal includes obtaining an ingot of a fine grained, or a coarse grained, or a columnar grained or a single crystal material from a precipitation hardened nickel base superalloy containing at least 40% by volume of the precipitate of the form Ni3(Al, X), where X is a metallic or refractory element, and processing the ingot to generate a sheet of the material, where the sheet has a thickness within a range of 0.010 inches and 0.050 inches inclusive.

公开(公告)号：US20170130289A1

公开(公告)日：2017-05-11

申请号：US15411355

申请日：2017-01-20

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Herbert A. Chin ,  John Joseph Marcin ,  Paul L. Reynolds ,  Gabriel L. Suciu ,  Paul D. Genereux

IPC: C21D9/08 ,  C21D1/26 ,  B22D27/04 ,  C22C19/05 ,  C22C38/00 ,  C21D8/10 ,  C22F1/10

Abstract: High modulus turbine shafts and high modulus cylindrical articles are described as are the process parameters for producing these shafts and cylindrical articles. The shafts/articles have a high Young's modulus as a result of having high modulus crystal texture along the longitudinal axis of the shaft/article. The shafts are produced from directionally solidified seeded single crystal cylinders that are axisymmetrically hot worked before a limited recrystallization process is carried out at a temperature below the recrystallization temperature of the alloy. The disclosed process produces an intense singular texture and results in shaft or cylindrical article with a Young's modulus that is at least 40% greater than that of conventional nickel or iron alloys or conventional steels.

公开(公告)号：US20160008867A1

公开(公告)日：2016-01-14

申请号：US14748688

申请日：2015-06-24

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Dilip M. Shah ,  Alan D. Cetel ,  John J. Marcin, JR. ,  Steven J. Bullied ,  Carl R. Verner

IPC: B21D51/02 ,  B23K28/00 ,  B22D21/00

CPC classification number: B21D51/02 ,  B22D21/00 ,  B23K28/00 ,  B23P15/02 ,  C30B11/002 ,  C30B29/52 ,  Y10T29/49989

Abstract: A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.

Abstract translation: 一种方法包括：提供具有与这种螺旋相关联的铸造结构的螺旋金属工件; 并且至少部分地使工件变平。

公开(公告)号：US20140178245A1

公开(公告)日：2014-06-26

申请号：US14190219

申请日：2014-02-26

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Alan D. Cetel ,  Dilip M. Shah

IPC: B32B15/00 ,  B22D19/00

CPC classification number: B32B15/00 ,  B22D19/00 ,  B32B15/01 ,  C22C1/02 ,  C22C1/023 ,  C22C19/03 ,  C22C19/05 ,  C22C19/056 ,  C22C19/057 ,  C23C4/02 ,  C23C4/073 ,  C23C14/028 ,  C23C14/16 ,  C30B29/52 ,  Y10T428/12493 ,  Y10T428/12944

Abstract: A coated article having an improved coating oxidation life includes a superalloy substrate material having a composition which includes sulfur, herein the sulfur is present in an amount less than 1 ppm; and an overlay coating formed over a surface of the substrate material.

Abstract translation: 具有改善的涂层氧化寿命的涂层制品包括具有包含硫的组成的超合金基材，其中硫以小于1ppm的量存在; 以及形成在衬底材料的表面上的覆盖涂层。