Patents by Inventor Changjie Sun

Changjie Sun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11326470
    Abstract: A ceramic matrix composite (CMC) component and method of fabrication including a plurality of counterflow elongated functional features. The CMC component includes a plurality of longitudinally extending ceramic matrix composite plies forming a densified body and a plurality of elongated functional features formed therein the densified body. Each of the plurality of functional features is configured longitudinally extending and in alignment with the plurality of ceramic matrix composite plies. Each of the plurality of elongated functional features includes an inlet configured in cross-ply configuration. The plurality of elongated functional features are configured to provide a flow of fluid from a fluid source to an exterior of the ceramic matrix composite component. The plurality of functional features are configured in alternating flow configuration.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 10, 2022
    Assignee: General Electric Company
    Inventors: Thomas Earl Dyson, Douglas Glenn Decesare, Changjie Sun
  • Patent number: 11314231
    Abstract: An industrial asset item definition data store may contain at least one electronic record defining the industrial asset item. An automated support structure creation platform may include a support structure optimization computer processor. The automated support structure optimization computer processor may be adapted to automatically create support structure geometry data associated with an additive printing process for the industrial asset item. The creation may be performed via an iterative loop between a build process simulation engine and a topology optimization engine.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: April 26, 2022
    Assignee: General Electric Company
    Inventors: Ananda Barua, Sathyanarayanan Raghavan, Arun Karthi Subramaniyan, Changjie Sun, Arvind Rangarajan
  • Patent number: 11308249
    Abstract: A method, medium, and system to receive a specification defining a model of a part to be produced by an additive manufacturing (AM) process; execute an AM simulation on the model of the part to determine a prediction of thermal distortions to the part; execute a topology optimization (TO) to create TO supports that counteract the predicted thermal distortions; generate at least one rule-based support based on a geometry of the part to interface with the part at one or more regions other than the TO supports; combining the TO supports and the at least one rule-based support to generate a set of hybrid supports; save a record of the set of hybrid supports; and transmit the record of the set of hybrid supports to an AM controller to control an AM system to generate a support structure for an AM production of the part.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 19, 2022
    Assignee: General Electric Company
    Inventors: Sathyanarayanan Raghavan, Ananda Barua, Evan Dozier, Joseph Block, Brendon Leary, Prabhjot Singh, Arvind Rangarajan, Changjie Sun, Dean Robinson
  • Patent number: 11261738
    Abstract: A nested lattice structure for use in a damping system for a turbine blade includes a first lattice structure including: a first outer passage including a hollow interior; a second outer passage including a hollow interior; and an outer node including a hollow interior and forming an intersection of the first outer passage and the second outer passage. The nested lattice structure includes a second lattice structure nested within the hollow interior of the first lattice structure. The second lattice structure includes: a first inner passage; a second inner passage; and an inner node forming an intersection of the first inner passage and the second inner passage. Each of the first inner passage, the second inner passage, and the inner node are nested within the respective first outer passage, the second outer passage, and the outer node.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: March 1, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Suryarghya Chakrabarti, Changjie Sun
  • Patent number: 11221610
    Abstract: A method and system to receive a specification defining a model of a part to be produced by an additive manufacturing (AM) process; define a design space to enclose the part and a support structure for the part, the support structure to support the part and printed with the part during the AM process; execute an iterative topology optimization(TO) based at least in part on the specification for the part and the defined design space, to generate a TO support structure that counteracts predicted gravity-based distortions during the AM process; save a record of the generated TO support structure; and transmit the record of the TO support structure to an AM controller, the AM controller to control an AM system to generate an instance of the part and the TO support structure based on the record.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: January 11, 2022
    Assignee: General Electric Company
    Inventors: Ananda Barua, Changjie Sun, Sathyanarayanan Raghavan
  • Publication number: 20210372286
    Abstract: A nested lattice structure 29 for use in a damping system includes a first lattice structure 26 including: a first outer passage 30 including a hollow interior 45; a second outer passage 32 including a hollow interior; and an outer node 42 including a hollow interior and forming an intersection of the first outer passage 30 and the second outer passage 32. The nested lattice structure 29 includes a second lattice structure 28 nested within the hollow interior of the first lattice structure 26 including: a first inner passage 44; a second inner passage 46; and an inner node 50 forming an intersection of the first inner passage 44 and the second inner passage 46. Each of the first inner passage 44, the second inner passage 46 and the inner node 50 are nested within the respective first outer passage 30, the second outer passage 32 and the outer node 42.
    Type: Application
    Filed: December 11, 2018
    Publication date: December 2, 2021
    Inventors: Suryarghya CHAKRABARTI, Changjie SUN
  • Patent number: 11182520
    Abstract: A method, medium, and system to execute an additive manufacturing (AM) simulation on a model of a part; determine, based on the AM simulation, a prediction of a temperature and displacement distribution in the part at a particular time in the AM process; apply the predicted temperature and displacement distributions in the part as a boundary conditions on a support design space to determine a temperature distribution throughout the support design space; and execute a thermal-structural topology optimization based on the determined temperature and displacement distributions throughout the support design space to determine a distribution of material in the design space for a thermal support structure to interface with the part that optimally reduces a thermal gradient in the part with a minimum of material and results in the generation of an optimized AM support structure.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: November 23, 2021
    Assignee: General Electric Company
    Inventors: Sathyanarayanan Raghavan, Ananda Barua, Prabhjot Singh, Arvind Rangarajan, Changjie Sun, Dean Robinson
  • Patent number: 11174752
    Abstract: A ceramic matrix composite (CMC) component and method of fabrication including one or more elongate functional features formed in multiple fiber plies of the CMC component. The CMC component includes a plurality of longitudinally extending ceramic matrix composite plies in a stacked configuration. Each of the one or more elongate functional features includes an inlet and an outlet to provide a flow of fluid from a fluid source to an exterior of the ceramic matrix composite component. The one or more elongate functional features are configured in multiple plies of the plurality of longitudinally extending ceramic matrix composite plies to form a plurality of cooling channels in multiple plies of the ceramic matrix composite component.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 16, 2021
    Assignee: General Electric Company
    Inventors: Thomas Earl Dyson, Daniel Gene Dunn, Changjie Sun, Christopher Jon Potokar, Douglas Glenn Decesare
  • Publication number: 20210189902
    Abstract: A ceramic matrix composite (CMC) component and method of fabrication including one or more elongate functional features formed in multiple fiber plies of the CMC component. The CMC component includes a plurality of longitudinally extending ceramic matrix composite plies in a stacked configuration. Each of the one or more elongate functional features includes an inlet and an outlet to provide a flow of fluid from a fluid source to an exterior of the ceramic matrix composite component. The one or more elongate functional features are configured in multiple plies of the plurality of longitudinally extending ceramic matrix composite plies to form a plurality of cooling channels in multiple plies of the ceramic matrix composite component.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 24, 2021
    Inventors: Thomas Earl Dyson, Daniel Gene Dunn, Changjie Sun, Christopher Jon Potokar, Douglas Glenn Decesare
  • Publication number: 20210189901
    Abstract: A ceramic matrix composite (CMC) component and method of fabrication including a plurality of counterflow elongated functional features. The CMC component includes a plurality of longitudinally extending ceramic matrix composite plies forming a densified body and a plurality of elongated functional features formed therein the densified body. Each of the plurality of functional features is configured longitudinally extending and in alignment with the plurality of ceramic matrix composite plies. Each of the plurality of elongated functional features includes an inlet configured in cross-ply configuration. The plurality of elongated functional features are configured to provide a flow of fluid from a fluid source to an exterior of the ceramic matrix composite component. The plurality of functional features are configured in alternating flow configuration.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 24, 2021
    Inventors: Thomas Earl Dyson, Douglas Glenn Decesare, Changjie Sun
  • Patent number: 10927693
    Abstract: A turbine shroud for turbine systems may include a unitary body including a support portion coupled directly to a turbine casing of the turbine system, and forward hook(s) and aft hook(s) formed integral with the support portion. The unitary body may also include an intermediate portion formed integral with and extending from the support portion. The intermediate portion may include a non-linear segment extending from the support portion, and a forward segment formed integral with the non-linear segment. The forward segment of the intermediate portion may be positioned axially upstream of the forward hook(s). Additionally the unitary body may include a seal portion formed integral with the intermediate portion, opposite the support portion. The seal portion may include a forward end formed integral with the intermediate portion. The forward end may be positioned axially upstream of the forward hook(s).
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 23, 2021
    Assignee: General Electric Company
    Inventors: Sathyanarayanan Raghavan, Gautam Suresh Naik, Prabhjot Singh, Zachary John Snider, Changjie Sun
  • Publication number: 20200410061
    Abstract: A method, medium, and system to receive a specification defining a model of a part to be produced by an additive manufacturing (AM) process; execute an AM simulation on the model of the part to determine a prediction of thermal distortions to the part; execute a topology optimization (TO) to create TO supports that counteract the predicted thermal distortions; generate at least one rule-based support based on a geometry of the part to interface with the part at one or more regions other than the TO supports; combining the TO supports and the at least one rule-based support to generate a set of hybrid supports; save a record of the set of hybrid supports; and transmit the record of the set of hybrid supports to an AM controller to control an AM system to generate a support structure for an AM production of the part.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 31, 2020
    Inventors: Sathyanarayanan RAGHAVAN, Ananda BARUA, Evan DOZIER, Joseph BLOCK, Brendon LEARY, Prabhjot SINGH, Arvind RANGARAJAN, Changjie SUN, Dean ROBINSON
  • Publication number: 20200410060
    Abstract: A method, medium, and system to execute an additive manufacturing (AM) simulation on a model of a part; determine, based on the AM simulation, a prediction of a temperature and displacement distribution in the part at a particular time in the AM process; apply the predicted temperature and displacement distributions in the part as a boundary conditions on a support design space to determine a temperature distribution throughout the support design space; and execute a thermal-structural topology optimization based on the determined temperature and displacement distributions throughout the support design space to determine a distribution of material in the design space for a thermal support structure to interface with the part that optimally reduces a thermal gradient in the part with a minimum of material and results in the generation of an optimized AM support structure.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 31, 2020
    Inventors: Sathyanarayanan RAGHAVAN, Ananda BARUA, Prabhjot SINGH, Arvind RANGARAJAN, Changjie SUN, Dean ROBINSON
  • Patent number: 10832753
    Abstract: A unit cell structure is provided. The unit cell structure includes a first section and a second section. The first section defines a first load path and includes a first plurality of first unit cells joined together. The second section defines a second load path separate from the first load path and includes a second plurality of second unit cells joined together, each second unit cell of the second plurality of second unit cells nested within and spaced apart from each first unit cell of the first plurality of first unit cells of the first section.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: November 10, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Arun Karthi Subramaniyan, Changjie Sun, Daniel Jason Erno, Darren Lee Hallman
  • Patent number: 10822972
    Abstract: The present disclosure is directed to a shroud assembly for a gas turbine. The shroud assembly includes a casing and a shroud. The shroud includes a radially outer wall engaged with the casing. A radially inner wall integrally couples to the radially outer wall. The radially inner wall and the radially outer wall collectively define a pair of axially opposed cavities. The radially inner wall moves radially outward toward the casing when one or more gas turbine blades contact the radially inner wall.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Yu Mukherjee, Ananda Barua, Changjie Sun, Wenfeng Lu
  • Patent number: 10781721
    Abstract: Turbine center frames are provided. For example, a turbine center frame comprises an annular outer case and an annular hub. The hub is defined radially inward of the outer case such that the outer case circumferentially surrounds the hub. The turbine center frame further comprises an annular fairing extending between the outer case and the hub, a ligament extending from the fairing to the outer case to connect the fairing to the outer case, a plurality of struts extending from the hub to the outer case, and a boss structure defined on an outer surface of the outer case. The outer case, hub, fairing, ligament, plurality of struts, and boss structure are integrally formed as a single monolithic component. For instance, the turbine center frame is additively manufactured as an integral structure, and methods for manufacturing turbine center frames also are provided.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: September 22, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Joshua Tyler Mook, Raymond Floyd Martell, Changjie Sun, Gautam Naik, Jordan Paule Tesorero, Aigbedion Akwara
  • Publication number: 20200248559
    Abstract: A turbine shroud for turbine systems are disclosed. The shrouds may include a unitary body including a support portion coupled directly to a turbine casing of the turbine system, and forward hook(s) and aft hook(s) formed integral with the support portion. The unitary body may also include an intermediate portion formed integral with and extending from the support portion. The intermediate portion may include a non-linear segment extending from the support portion, and a forward segment formed integral with the non-linear segment. The forward segment of the intermediate portion may be positioned axially upstream of the forward hook(s). Additionally the unitary body may include a seal portion formed integral with the intermediate portion, opposite the support portion. The seal portion may include a forward end formed integral with the intermediate portion. The forward end may be positioned axially upstream of the forward hook(s).
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Inventors: Sathyanarayanan Raghavan, Gautam Suresh Naik, Prabhjot Singh, Zachary John Snider, Changjie Sun
  • Patent number: 10633983
    Abstract: An airfoil for use in a turbomachine includes a pressure sidewall and a suction sidewall coupled to the pressure sidewall. The suction sidewall and the pressure sidewall define a leading edge and a trailing edge, the leading edge and the trailing edge define a chord distance. The airfoil includes a tip portion extending between the pressure sidewall and the suction sidewall. The tip portion includes a planar section and a recessed section. The recessed section extends adjacent to the planar section such that a thickness of the planar section is less than a thickness of the airfoil. The recessed section is offset a predetermined distance from the leading edge and the trailing edge along the chord distance.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: April 28, 2020
    Assignee: General Electric Company
    Inventors: Ananda Barua, Neelesh Nandkumar Sarawate, Kenneth Martin Lewis, Changjie Sun, Yu Xie Mukherjee, Sathyanarayanan Raghavan
  • Patent number: 10508731
    Abstract: A planet gear includes a pin and an annular planet gear rim. The pin has a pin radius. The pin includes a pin outer surface. The annular planet gear rim has an inner radius and an outer radius. The annular planet gear rim includes an inner surface and an outer surface. The inner surface and the pin outer surface define a clearance therebetween. The clearance is greater than 0 when a radial force is applied to the planet gear.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: December 17, 2019
    Assignee: General Electric Company
    Inventors: Darren Lee Hallman, Donald Albert Bradley, Changjie Sun, Bugra Han Ertas
  • Patent number: 10488279
    Abstract: A component has a first structural configuration and a second structural configuration. The component includes a sensor assembly including a plurality of interconnected structural members defining a plurality of load paths. A first structural member and a second structural member define a first load path when the component is in the first structural configuration. The first structural member and a third structural member define a second load path when the component is in the second structural configuration. The second load path is configured to bypass the second structural member. The sensor assembly is configured to detect a characteristic of the component that changes when the component switches between the first structural configuration and the second structural configuration.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: November 26, 2019
    Assignee: General Electric Company
    Inventors: Arun Karthi Subramaniyan, Ananda Barua, Daniel J. Erno, Darren L. Hallman, Changjie Sun