Patents by Inventor Thomas M. Yun

Thomas M. Yun 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).

  • Publication number: 20230384044
    Abstract: A method of manufacturing a heat exchanger core from glass ceramic matrix composite includes placing one or more reinforcing fibers around one or more mandrels into a mold cavity. A glass matrix material infiltrates the one or more reinforcing fibers to produce an infiltrated core and the one or more mandrels is removed to create one or more passages passing through the infiltrated core.
    Type: Application
    Filed: May 26, 2022
    Publication date: November 30, 2023
    Inventors: John Joseph Gangloff, Paul Sheedy, Justin B. Alms, Kathryn L. Kirsch, Thomas M. Yun, Daniel A. Mosher, John E. Holowczak, Ram Ranjan
  • Patent number: 11781821
    Abstract: A heat exchanger arrangement includes walls defining at least two circuit passages for porting a first fluid, a first of the circuit passages defining a first passage length, and a second of the circuit passages defining a second passage length, the second passage length being different from the first passage length, the walls being in thermal communication with a second fluid while isolating the first fluid from the second fluid, at least one of the first circuit passage and the second circuit passage includes a flow control feature configured to decrease an imbalance in flow between the first circuit passage and the second circuit passage compared to if the flow control feature were not present.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: October 10, 2023
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Thomas M. Yun, Vijay Narayan Jagdale, Brian St. Rock
  • Publication number: 20230288143
    Abstract: A heat exchanger includes a heat exchanger body having a first end and a second end opposed to the first end along a flow axis. A plurality of flow channels is defined in the heat exchanger body extending axially with respect to the flow axis. A first set of the flow channels forms a first flow circuit and a second set of the flow channels forms a second flow circuit that is in fluid isolation from the first flow circuit. Each flow channel is fluidly isolated from the other flow channels. The flow channels all conform to a curvilinear profile.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 14, 2023
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Joseph Turney, Ram Ranjan, Thomas M. Yun, Matthew Robert Pearson
  • Publication number: 20230123354
    Abstract: A method for manufacturing a stator for an electric machine comprises manufacturing a slot cooling fin to extend into a slot defined between a first tooth, a second tooth, and a stator yoke, and disposing a coil in the slot, wherein the slot cooling fin extends into the first coil.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 20, 2023
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Jagadeesh Kumar Tangudu, Thomas M. Yun, Andrew S. Babel
  • Patent number: 11557943
    Abstract: A planar member for a stator stack comprises a stator yoke defining a central longitudinal axis, a first surface facing radially outward, and a second surface facing radially inward, a tooth extending radially inwards from the second surface, a first tooth tip extending circumferentially from a radially inward end of the tooth, a second tooth tip extending circumferentially from the radially inward end of the tooth, a first slot portion defined between the first tooth tip and the second surface, a second slot portion defined between the second tooth tip and the second surface, and a slot cooling fin extending radially from the stator yoke into the first slot portion.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: January 17, 2023
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Jagadeesh Kumar Tangudu, Thomas M Yun, Andrew S Babel
  • Publication number: 20220252361
    Abstract: A heat exchanger arrangement includes walls defining at least two circuit passages for porting a first fluid, a first of the circuit passages defining a first passage length, and a second of the circuit passages defining a second passage length, the second passage length being different from the first passage length, the walls being in thermal communication with a second fluid while isolating the first fluid from the second fluid, at least one of the first circuit passage and the second circuit passage includes a flow control feature configured to decrease an imbalance in flow between the first circuit passage and the second circuit passage compared to if the flow control feature were not present.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 11, 2022
    Inventors: Thomas M. Yun, Vijay Narayan Jagdale, Brian St. Rock
  • Patent number: 11333447
    Abstract: An additively manufactured heat exchanger can include a plurality of vertically built fins, and a plurality of non-horizontally built parting sheets. The plurality of vertically built fins can extend between and connect to the plurality of parting sheets. The heat exchanger can include a plurality of layers of fins and parting sheets. The heat exchanger can include first and second flow circuits for allowing separate fluid flows to flow through the heat exchanger to exchange heat therebetween.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: May 17, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Thomas M. Yun, Vijay Narayan Jagdale
  • Patent number: 11333452
    Abstract: A heat exchanger arrangement includes walls defining at least two circuit passages for porting a first fluid, a first of the circuit passages defining a first passage length, and a second of the circuit passages defining a second passage length, the second passage length being different from the first passage length, the walls being in thermal communication with a second fluid while isolating the first fluid from the second fluid, at least one of the first circuit passage and the second circuit passage includes a flow control feature configured to decrease an imbalance in flow between the first circuit passage and the second circuit passage compared to if the flow control feature were not present.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: May 17, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Thomas M. Yun, Vijay Narayan Jagdale, Brian St. Rock
  • Publication number: 20220120502
    Abstract: A heat exchanger includes a body, a plurality of first flow channels defined in the body; and a plurality of second flow channels defined in the body. The second flow channels are fluidly isolated from the first flow channels. The first flow channels and second flow channels are arranged in a checkerboard pattern.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Neal R. Herring, Ram Ranjan, Brian St. Rock, Joseph Turney, Andrzej Ernest Kuczek, Michael K. Ikeda, Thomas M. Yun
  • Patent number: 11306979
    Abstract: An additively-manufactured heat exchanger includes fluidly-separated alternating first and second layers having respective flow channels which can include one or more features that is either a riblet or a turbulator. A riblet includes a riblet peak and/or a riblet valley, which has a riblet slope, and the riblet peak and/or riblet valley has a riblet axis that is generally parallel to either the first fluid flow direction or the second fluid flow direction. A turbulator includes a turbulator peak and/or a turbulator valley, which has a turbulator slope, and the turbulator peak and/or turbulator valley has a turbulator axis that is generally perpendicular to either the first fluid flow direction or the second fluid flow direction. The respective slope angles are generally 25-65 deg. relative to build-axis, thereby resulting in improved surface roughness and uniformity control during the build process.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 19, 2022
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Thomas M. Yun, Vijay Narayan Jagdale, Jin Lee
  • Patent number: 11243030
    Abstract: A heat exchanger includes a body, a plurality of first flow channels defined in the body; and a plurality of second flow channels defined in the body. The second flow channels are fluidly isolated from the first flow channels. The first flow channels and second flow channels are arranged in a checkerboard pattern.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: February 8, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Neal R. Herring, Ram Ranjan, Brian St. Rock, Joseph Turney, Andrzej E. Kuczek, Michael K. Ikeda, Thomas M. Yun
  • Publication number: 20210372706
    Abstract: A heat exchanger includes a heat exchanger body having a first end and a second end opposed to the first end along a flow axis. A plurality of flow channels is defined in the heat exchanger body extending axially with respect to the flow axis. A first set of the flow channels forms a first flow circuit and a second set of the flow channels forms a second flow circuit that is in fluid isolation from the first flow circuit. Each flow channel is fluidly isolated from the other flow channels. The flow channels all conform to a curvilinear profile.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 2, 2021
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Joseph Turney, Ram Ranjan, Thomas M. Yun, Matthew Robert Pearson
  • Patent number: 11112183
    Abstract: A heat exchanger includes a heat exchanger body having a first end and a second end opposed to the first end along a flow axis. A plurality of flow channels is defined in the heat exchanger body extending axially with respect to the flow axis. A first set of the flow channels forms a first flow circuit and a second set of the flow channels forms a second flow circuit that is in fluid isolation from the first flow circuit. Each flow channel is fluidly isolated from the other flow channels. The flow channels all conform to a curvilinear profile.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: September 7, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Joseph Turney, Ram Ranjan, Thomas M. Yun, Matthew R. Pearson
  • Publication number: 20210180886
    Abstract: A heat exchanger arrangement includes walls defining at least two circuit passages for porting a first fluid, a first of the circuit passages defining a first passage length, and a second of the circuit passages defining a second passage length, the second passage length being different from the first passage length, the walls being in thermal communication with a second fluid while isolating the first fluid from the second fluid, at least one of the first circuit passage and the second circuit passage includes a flow control feature configured to decrease an imbalance in flow between the first circuit passage and the second circuit passage compared to if the flow control feature were not present.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 17, 2021
    Inventors: Thomas M. Yun, Vijay Narayan Jagdale, Brian St. Rock
  • Patent number: 11025108
    Abstract: A stator includes a core and a coolant jacket. The core has an outer surface extending about a rotation axis and defining one or more surface discontinuity within the outer surface. The coolant jacket is deposited on the outer surface of the core and has two or more layers conformally disposed on the outer surface of the core, the coolant jacket inhabiting the one or more surface discontinuity. Electrical machines, motor-type electrical machines, and methods of making stators are also described.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: June 1, 2021
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Thomas M. Yun, Jagadeesh Kumar Tangudu
  • Patent number: 10890501
    Abstract: A product for pressure measurements is provided. The product being integral to a component comprising a conduit encasing a flow path of a medium. The product includes static pressure holes, located on the conduit, that access the flow path and the medium. The product includes a static port, which provides a volume that includes an average static pressure across the static pressure holes. The product includes channels, each which directly corresponds to and fluidly couples each static pressure hole to the static port.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: January 12, 2021
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Thomas M. Yun, Robert H. Dold, John H. Whiton
  • Patent number: 10873239
    Abstract: Disclosed is a stator having: a first member having a first plurality of axially opposing ends including a first front end and a first back end mutually spaced along a first stator center axis, a first outer diameter (OD) side and a first inner diameter (ID) side, wherein first member comprises laminated steel; a plurality of cooling features disposed directly against the first member, wherein the plurality of fins spans between the first plurality of axially opposing ends of the first member, and wherein: the stator comprises a base layer disposed directly against the first member, between the first member and the cooling features, thereby reducing an interface contact resistance between the first member and the plurality of cooling features.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: December 22, 2020
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventors: Jagadeesh Kumar Tangudu, Thomas M. Yun, John A. Sharon
  • Publication number: 20200358325
    Abstract: A stator includes a core and a coolant jacket. The core has an outer surface extending about a rotation axis and defining one or more surface discontinuity within the outer surface. The coolant jacket is deposited on the outer surface of the core and has two or more layers conformally disposed on the outer surface of the core, the coolant jacket inhabiting the one or more surface discontinuity. Electrical machines, motor-type electrical machines, and methods of making stators are also described.
    Type: Application
    Filed: May 9, 2019
    Publication date: November 12, 2020
    Inventors: Thomas M. Yun, Jagadeesh Kumar Tangudu
  • Publication number: 20200336053
    Abstract: A planar member for a stator stack comprises a stator yoke defining a central longitudinal axis, a first surface facing radially outward, and a second surface facing radially inward, a tooth extending radially inwards from the second surface, a first tooth tip extending circumferentially from a radially inward end of the tooth, a second tooth tip extending circumferentially from the radially inward end of the tooth, a first slot portion defined between the first tooth tip and the second surface, a second slot portion defined between the second tooth tip and the second surface, and a slot cooling fin extending radially from the stator yoke into the first slot portion.
    Type: Application
    Filed: July 7, 2020
    Publication date: October 22, 2020
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Jagadeesh Kumar Tangudu, Thomas M. Yun, Andrew S. Babel
  • Patent number: 10742098
    Abstract: A planar member for a stator stack comprises a stator yoke defining a central longitudinal axis, a first surface facing radially outward, and a second surface facing radially inward, a tooth extending radially inwards from the second surface, a first tooth tip extending circumferentially from a radially inward end of the tooth, a second tooth tip extending circumferentially from the radially inward end of the tooth, a first slot portion defined between the first tooth tip and the second surface, a second slot portion defined between the second tooth tip and the second surface, and a slot cooling fin extending into the first slot portion.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: August 11, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Jagadeesh Kumar Tangudu, Thomas M Yun, Andrew S Babel