Patents by Inventor Sang Yeng Park

Sang Yeng Park 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: 10774661
    Abstract: An interlocking shroud assembly for a turbine engine includes at least two shroud elements, each having confronting radial ends that define a split interface with axial fore, aft, and circumferential portions.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 15, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Fatih Sari, Alkim Deniz Senalp, Sang Yeng Park
  • Publication number: 20180363482
    Abstract: An interlocking shroud assembly for a turbine engine comprising at least two shroud elements, each having confronting radial ends that define a split interface with axial fore, aft, and circumferential portions.
    Type: Application
    Filed: January 27, 2017
    Publication date: December 20, 2018
    Inventors: Fatih Sari, Alkim Deniz Senalp, Sang Yeng Park
  • Patent number: 9909437
    Abstract: A curvic seal for use in a gas turbine engine is provided. The curvic seal includes a split ring including a first slit extending therethrough, and a biasing ring coupled to the split ring and extending along a radially inner side thereof. The biasing ring is configured to bias against the split ring and restrict airflow through the first slit.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: March 6, 2018
    Assignee: General Electric Company
    Inventors: Christopher Karl Hubley, Khalil Qader, Sang Yeng Park
  • Publication number: 20170159469
    Abstract: A curvic seal for use in a gas turbine engine is provided. The curvic seal includes a split ring including a first slit extending therethrough, and a biasing ring coupled to the split ring and extending along a radially inner side thereof. The biasing ring is configured to bias against the split ring and restrict airflow through the first slit.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 8, 2017
    Inventors: Christopher Karl Hubley, Khalil Qader, Sang Yeng Park
  • Patent number: 6821084
    Abstract: A bearing assembly for use in a gas turbine engine to rotatably mount a torque tube in an access hole extending through a fan duct. The torque tube connects a variable stator vane bell crank positioned inside the fan duct to an actuator positioned outside the fan duct. The bearing assembly includes a bearing having a spherical external engagement surface and a housing having a flange and an annular interior surface having an inner edge and an outer edge. The interior surface is sized and shaped for rotatably receiving the spherical external engagement surface of the bearing so the spherical engagement surface and the annular interior surface make contact along an annular contact area centered on a contact plane lying between the inner and outer edges. The contact plane is tilted with respect to the flange at an angle greater than five degrees.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: November 23, 2004
    Assignee: General Electric Company
    Inventors: Julius Bathori, Sang Yeng Park, Mitchell Jay Headley
  • Publication number: 20040115040
    Abstract: A bearing assembly for use in a gas turbine engine to rotatably mount a torque tube in an access hole extending through a fan duct. The torque tube connects a variable stator vane bell crank positioned inside the fan duct to an actuator positioned outside the fan duct. The bearing assembly includes a bearing having a spherical external engagement surface and a housing having a flange and an annular interior surface having an inner edge and an outer edge. The interior surface is sized and shaped for rotatably receiving the spherical external engagement surface of the bearing so the spherical engagement surface and the annular interior surface make contact along an annular contact area centered on a contact plane lying between the inner and outer edges. The contact plane is tilted with respect to the flange at an angle greater than five degrees.
    Type: Application
    Filed: December 11, 2002
    Publication date: June 17, 2004
    Applicant: General Electric Company
    Inventors: Julius Bathori, Sang Yeng Park, Mitchell Jay Headley
  • Patent number: 6254341
    Abstract: An engine, according to an exemplary embodiment of the invention, comprises a compressor which compresses inlet air; a combustor in which a mixture of fuel and air is combusted; a turbine which is driven by gases from the combustor; and a dielectric coating applied to a surface of at least one of: the compressor and the turbine, the dielectric coating having a dielectric constant of at least 3.0 and a loss tangent of at most 0.1, wherein the dielectric coating reduces the magnitude of an electrostatic force which attracts particles flowing through the engine to the surface of the engine. In operation, only a thin layer of particles typically accumulates on the dielectric coating. While the dielectric coating reduces the magnitude of the electric field which attracts particles, the repulsive force produced by the accumulated particles repels additional particles of the same charge.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: July 3, 2001
    Assignee: General Electric Company
    Inventors: John Frederick Ackerman, William Randolph Stowell, Dan Ivkovich, Robert Alan Johnson, Soon Jai Khang, Sang Yeng Park
  • Patent number: 5713721
    Abstract: One form of a retention system includes a pair of aft segments of 180.degree. in length disposed in annular grooves about a compressor spool, the segments having radial projections against which the aft end faces of the base portions of rotor blades abut. The blade base portions are shaped and are received in complementary-shaped slots of the spool. The forward retention system includes a plurality of arcuate segments approximately 30.degree. in length disposed in grooves adjacent the forward end faces of the blades. With the exception of the final pair of blades, the blade base portions thereof are located in the axial complementary slots in pairs, with each forward arcuate segment, except the final segment, being disposed in the groove at a circumferentially spaced location and displaced circumferentially to abut the forward end faces. The final arcuate segment is radially reduced and disposed in the remaining portion of the groove to lie flush with the spool.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: February 3, 1998
    Assignee: General Electric Co.
    Inventors: Christopher C. Glynn, Poul D. Pedersen, Frederick M. Miller, Roger C. Walker, Sang Yeng Park, Clifford C. May