公开(公告)号：US20180023576A1

公开(公告)日：2018-01-25

申请号：US15218915

申请日：2016-07-25

Applicant: United Technologies Corporation

Inventor： Daniel Bernard Kupratis ,  Arthur W. Utay ,  Tania Bhatia Kashyap ,  Thomas N. Slavens ,  Kevin L. Rugg ,  Mark F. Zelesky ,  Brian D. Merry ,  Gabriel L. Suciu

IPC: F04D17/10 ,  B64D41/00 ,  F04D29/42 ,  F04D29/02 ,  F04D29/28

CPC classification number: B64D41/00 ,  F02C3/08 ,  F02C3/145 ,  F04D17/105

Abstract: An auxiliary power unit may comprise a twin centrifugal compressor including a first blade. A turbine may be disposed aft of the twin centrifugal compressor. The turbine may include a second blade. The first blade comprises a first material and the second blade comprises a second material. The first material may the same as the second material. The twin centrifugal compressor may include forward centrifugal compressor and an aft centrifugal compressor disposed aft of the forward centrifugal compressor.

公开(公告)号：US20170342549A1

公开(公告)日：2017-11-30

申请号：US15168268

申请日：2016-05-31

Applicant: United Technologies Corporation

Inventor： Tania Bhatia Kashyap ,  Kathryn S. Read

IPC: C23C16/04 ,  C04B35/628 ,  C04B35/626 ,  C04B35/80

Abstract: A method of fabricating a ceramic matrix composite includes infiltrating pores of a porous structure with a preceramic matrix polymer using a composite molding technique. The porous structure includes fibers and an exposed carbon coating on the fibers. The preceramic matrix polymer wets the exposed carbon coating. The preceramic matrix polymer is then pyrolyzed to convert the preceramic matrix polymer to a ceramic matrix.

公开(公告)号：US09701591B2

公开(公告)日：2017-07-11

申请号：US13859093

申请日：2013-04-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Paul Sheedy ,  Wayde R. Schmidt ,  Tania Bhatia Kashyap

IPC: C04B41/81 ,  C04B41/88 ,  C04B41/85 ,  C04B35/571 ,  C04B35/589 ,  C04B35/626 ,  C04B35/628 ,  C04B35/76 ,  C04B35/80

CPC classification number: C04B41/81 ,  C04B35/571 ,  C04B35/589 ,  C04B35/6269 ,  C04B35/62842 ,  C04B35/62844 ,  C04B35/76 ,  C04B35/806 ,  C04B41/85 ,  C04B41/88 ,  C04B2235/3891 ,  C04B2235/40 ,  C04B2235/404 ,  C04B2235/408 ,  C04B2235/421 ,  C04B2235/48 ,  C04B2235/483 ,  C04B2235/522 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/5268 ,  C04B2235/616 ,  C04B2235/6584 ,  C04B2235/80 ,  C04B2235/9607 ,  Y10T428/249967 ,  Y10T428/249969 ,  Y10T428/24997

Abstract: A method for fabricating a ceramic material includes providing a mobilized filler material capable of infiltrating a porous ceramic matrix composite. The mobilized filler material includes at least one of a ceramic material and a free metal. The mobilized filler material is infiltrated into pores of the porous ceramic matrix composite. The mobilized filler material is then immobilized within the pores of the porous ceramic matrix composite.

公开(公告)号：US10787921B2

公开(公告)日：2020-09-29

申请号：US16130126

申请日：2018-09-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Derek A Brigham ,  Jeffrey Leon ,  David Dwyer Whittle ,  Amarnath Ramlogan ,  Brian J Burke ,  Santiago Orellana ,  Tania Bhatia Kashyap ,  Dianbo Li

IPC: F01D5/30 ,  F01D11/00

Abstract: A cover plate for a rotor assembly is disclosed. In various embodiments, the cover plate includes an annular member having a radially inner portion and a radially outer portion with respect to a longitudinal axis, the radially inner portion including an aft face and an angled forward face, the angled forward face defining a forward face angle with respect to a cylindrical plane that is coaxial with the longitudinal axis, the face angle having a value that is greater than or equal to fifty degrees; a first tab and a second tab disposed proximate the radially inner portion of the annular member; and a slot disposed between the first tab and the second tab.

公开(公告)号：US20200056488A1

公开(公告)日：2020-02-20

申请号：US15998730

申请日：2018-08-16

Applicant: United Technologies Corporation

Inventor： Richard Wesley Jackson ,  James T. Beals ,  Tania Bhatia Kashyap ,  Wayde R. Schmidt ,  Paul Sheedy ,  Xia Tang

IPC: F01D5/28 ,  C04B35/14 ,  C04B35/622 ,  C04B35/63

Abstract: An environmental barrier coating, comprising a substrate containing silicon; an environmental barrier layer applied to the substrate; the environmental barrier layer comprising an oxide matrix; an oxidant getter phase interspersed throughout the oxide matrix; and a self-healing phase interspersed throughout the oxide matrix.

公开(公告)号：US20200055788A1

公开(公告)日：2020-02-20

申请号：US15998736

申请日：2018-08-16

Applicant: United Technologies Corporation

Inventor： Erik A. Mikalsen ,  James T. Beals ,  Tania Bhatia Kashyap

IPC: C04B41/00 ,  C04B41/50 ,  C04B41/51 ,  C04B41/86 ,  C04B41/87 ,  C04B41/88 ,  B23K26/00 ,  B23K26/352

Abstract: A process of coating a substrate containing silicon with an environmental barrier coating, comprising altering a surface of the substrate and applying an environmental barrier layer to the surface of the substrate.

公开(公告)号：US20200010375A1

公开(公告)日：2020-01-09

申请号：US16550839

申请日：2019-08-26

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Xia Tang ,  Paul Sheedy ,  Tania Bhatia Kashyap ,  Wayde R. Schmidt ,  Daniel G. Goberman

IPC: C04B41/87 ,  B32B9/00 ,  C04B35/14 ,  C04B35/195 ,  C04B35/56

Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO2, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO2, in the matrix.

公开(公告)号：US10472713B2

公开(公告)日：2019-11-12

申请号：US15168268

申请日：2016-05-31

Applicant: United Technologies Corporation

Inventor： Tania Bhatia Kashyap ,  Kathryn S. Read

IPC: C04B35/626 ,  C04B35/628 ,  C04B35/80 ,  C04B35/571 ,  C23C16/04

Abstract: A method of fabricating a ceramic matrix composite includes infiltrating pores of a porous structure with a preceramic matrix polymer using a composite molding technique. The porous structure includes fibers and an exposed carbon coating on the fibers. The preceramic matrix polymer wets the exposed carbon coating. The preceramic matrix polymer is then pyrolyzed to convert the preceramic matrix polymer to a ceramic matrix.

公开(公告)号：US20180215670A1

公开(公告)日：2018-08-02

申请号：US15939352

申请日：2018-03-29

Applicant: United Technologies Corporation

Inventor： Shahram Amini ,  Xia Tang ,  Wayde R. Schmidt, SR. ,  Tania Bhatia Kashyap

IPC: C04B35/80 ,  C04B35/571 ,  C04B35/64 ,  C04B41/52

CPC classification number: C04B35/806 ,  C04B35/571 ,  C04B35/64 ,  C04B41/52 ,  C04B2235/32 ,  C04B2235/3804 ,  C04B2235/3817 ,  C04B2235/3826 ,  C04B2235/3852 ,  C04B2235/3891 ,  C04B2235/422 ,  C04B2235/483 ,  C04B2235/5208 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/616

Abstract: A method of fabricating a ceramic article includes providing a porous body that includes a plurality of fiber bundles that has an intra-bundle porosity and an inter-bundle porosity, infiltrating the intra-bundle porosity and the inter-bundle porosity with a mixture of particles in a liquid carrier, the particles having an average size selected with respect to at least the intra-bundle porosity, removing the liquid carrier from the porous body to deposit the particles in the intra-bundle porosity and in the inter-bundle porosity, infiltrating a preceramic polymer into a remaining intra-bundle porosity and a remaining inter-bundle porosity, and thermally converting the preceramic polymer to a ceramic material.

公开(公告)号：US20180163551A1

公开(公告)日：2018-06-14

申请号：US15375827

申请日：2016-12-12

Applicant: United Technologies Corporation

Inventor： John David Forbes ,  Gregory Anselmi ,  Christina E. Botnick ,  Eleanor D. Kaufman ,  Jeffrey Leon ,  Jeffrey R. Levine ,  Gerald M. Mace ,  Daniel C. Nadeau ,  Tania Bhatia Kashyap ,  Richard N. Allen

IPC: F01D9/04

CPC classification number: F01D9/041 ,  F01D9/065 ,  F05D2240/80 ,  F05D2240/81 ,  F05D2250/74 ,  F05D2260/202

Abstract: A turbine vane includes an inner platform and an outer platform joined together by an airfoil. The airfoil has a leading edge and a trailing edge joined together by a pressure side and a suction side disposed opposite the pressure side. The inner platform defines a plurality of first inner cooling holes and a plurality of second inner cooling holes that are fluidly connected to an inner cooling passage. The plurality of first inner cooling holes are disposed proximate the leading edge and extend towards the suction side and the plurality of second inner cooling holes are disposed proximate the trailing edge and the suction side and extend towards the leading edge.