Patents Assigned to Mechanical Dynamics & Analysis, LLC.
  • Patent number: 11506061
    Abstract: A turbine rotor blade includes an airfoil, root, and platform that is between the root and a proximate end portion of the airfoil. The blade defines a passage having a first leg, second leg, and arcuate portion. The arcuate portion is at least partially within the platform and connects the first and second legs. The first leg extends between a distal end portion of the airfoil and an inlet of the arcuate portion. The second leg extends from an outlet of the arcuate portion to the distal end portion of the airfoil. The platform includes a first feed passage and branch passages. The first feed passage is open through an extrados of the arcuate portion and is in fluid communication with the branch passages. The inlet of each branch passage is connected with the first feed passage while the outlet is open to an exterior of the platform.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: November 22, 2022
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Leissner Ferdinand Poth, III, Sanjay Surat Hingorani
  • Patent number: 11492921
    Abstract: A bypass valve assembly for a turbine generator includes a valve body, bypass seats, valve stem, valve cap, bypass valve disc, bypass valves, and pressure seal head. The valve body defines a central bore and a plurality of passageways. Each passageway has an inlet smaller than its outlet. Each bypass seat is within the inlet of a corresponding passageway. The bypass seats have a higher wear resistance than the valve body. The valve stem is within the central bore. The valve cap is secured to the valve body. The bypass valve disc is secured to the valve stem. Each bypass valve has a base portion and a nose portion. Each nose portion defines a contoured surface area with a wear coating and extends into a corresponding passageway. The pressure seal head is disposed around the valve stem and defines steps having a wear coating.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: November 8, 2022
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Mark Jeffrey Passino, Jr., Andrew Koonce, Matthew Monty, Dominick Werther, Roy Satzman
  • Patent number: 11326462
    Abstract: A gas turbine spacer disk includes a disk portion, a rim portion, a first fillet, and a second fillet. The disk portion is disposed about a rotational axis. The rim portion is disposed about the disk portion. An outer face of the rim portion defines a plurality grooves extending circumferentially about the rotational axis. The first fillet transitions from the rim portion to a first side of the disk portion. The second fillet transitions from the rim portion to a second side of the disk portion. The plurality of grooves includes a pair of first grooves having a first diameter and a pair of second grooves having a second diameter that is less than the first diameter. A first one of the first grooves overlaps in an axial direction with the first fillet. A second one of the first grooves overlaps in the axial direction with the second fillet.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: May 10, 2022
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventor: Fred Thomas Willett, Jr.
  • Publication number: 20220049607
    Abstract: A turbine rotor blade includes an airfoil, root, and platform that is between the root and a proximate end portion of the airfoil. The blade defines a passage having a first leg, second leg, and arcuate portion. The arcuate portion is at least partially within the platform and connects the first and second legs. The first leg extends between a distal end portion of the airfoil and an inlet of the arcuate portion. The second leg extends from an outlet of the arcuate portion to the distal end portion of the airfoil. The platform includes a first feed passage and branch passages. The first feed passage is open through an extrados of the arcuate portion and is in fluid communication with the branch passages. The inlet of each branch passage is connected with the first feed passage while the outlet is open to an exterior of the platform.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 17, 2022
    Applicant: Mechanical Dynamics & Analysis LLC
    Inventor: Leissner Ferdinand POTH, III
  • Publication number: 20210262348
    Abstract: A gas turbine spacer disk includes a disk portion, a rim portion, a first fillet, and a second fillet. The disk portion is disposed about a rotational axis. The rim portion is disposed about the disk portion. An outer face of the rim portion defines a plurality grooves extending circumferentially about the rotational axis. The first fillet transitions from the rim portion to a first side of the disk portion. The second fillet transitions from the rim portion to a second side of the disk portion. The plurality of grooves includes a pair of first grooves having a first diameter and a pair of second grooves having a second diameter that is less than the first diameter. A first one of the first grooves overlaps in an axial direction with the first fillet. A second one of the first grooves overlaps in the axial direction with the second fillet.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 26, 2021
    Applicant: Mechanical Dynamics & Analysis LLC
    Inventor: Fred Thomas WILLETT, JR.
  • Publication number: 20200182079
    Abstract: A bypass valve assembly for a turbine generator includes a valve body, bypass seats, valve stem, valve cap, bypass valve disc, bypass valves, and pressure seal head. The valve body defines a central bore and a plurality of passageways. Each passageway has an inlet smaller than its outlet. Each bypass seat is within the inlet of a corresponding passageway. The bypass seats have a higher wear resistance than the valve body. The valve stem is within the central bore. The valve cap is secured to the valve body. The bypass valve disc is secured to the valve stem. Each bypass valve has a base portion and a nose portion. Each nose portion defines a contoured surface area with a wear coating and extends into a corresponding passageway. The pressure seal head is disposed around the valve stem and defines steps having a wear coating.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Applicant: Mechanical Dynamics & Analysis LLC
    Inventors: Mark Jeffrey Passino, JR., Andrew Koonce, Matthew Monty, Dominick Werther, Roy Satzman
  • Patent number: 10605110
    Abstract: A bypass valve assembly for use in turbine generators includes a valve body defining a central bore and a plurality of passageways. Each passageway has a smaller area at an inlet portion and a larger area at an outlet portion to define a flared passageway. A plurality of bypass valves is disposed within the plurality of passageways within the valve body. Each bypass valve includes a base portion and a nose portion, with each nose portion defining a predefined contoured surface area. At least a portion of the contoured surface area includes a wear coating disposed thereon. Optionally, the wear coating includes a plasma enhanced magnetron sputtering nanocoating.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 31, 2020
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Mark Jeffrey Passino, Jr., Andrew Koonce, Matthew Monty, Dominick Werther, Roy Satzman
  • Patent number: 10344605
    Abstract: A turbine engine component can include a surface comprising at least one edge and a coating disposed upon the surface that can extend to the edge. A spall break can be disposed along a line upon the surface adjacent the edge to prevent spallation of the coating from spreading from the edge onto the surface beyond the spall break. The spall break can comprise a discontinuity of the coating. A method of coating a turbine component can include preparing a substrate to receive a coating and selecting a fail location along the substrate for a coating. One or more coating can be applied to the substrate and a spall break can be incorporated into the one or more coatings. The spall break can comprise a line of discontinuity in the one or more coatings along the fail location.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: July 9, 2019
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventor: Seth Thomen
  • Publication number: 20190184503
    Abstract: A method of remanufacturing a turbine blade having a platform includes placing a puck against a surface of the platform. The method may include electrical discharge machining an interface between the puck and the platform and brazing the puck to the platform. A total radial thickness of a finally remanufactured platform of the remanufactured turbine blade is greater than an initial radial thickness of the platform before remanufacturing the turbine blade.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 20, 2019
    Applicant: Mechanical Dynamics & Analysis LLC
    Inventors: Jason HUXOL, Jayson HOUSTON, Mark TOWNER, Leissner Ferdinand POTH, III
  • Patent number: 10252380
    Abstract: A method of remanufacturing a turbine component includes electrical discharge machining a puck via the turbine component to form an electrical discharged machined puck; and brazing the electrical discharged machined puck to the turbine component.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: April 9, 2019
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Jason Huxol, Jayson Houston, Mark Towner, Leissner Ferdinand Poth, III
  • Patent number: 10145249
    Abstract: A gas turbine engine system comprises a rotor wheel, a plurality of blades, a lockwire and a locking key. The rotor wheel comprises a plurality of axial grooves extending through a periphery of the rotor wheel, and a plurality of posts formed between adjacent slots, each post having a circumferential slot. The blades are mounted in the axial grooves of the rotor wheel, each blade having a circumferential slot circumferentially aligned with the circumferential slots of the posts. The lockwire extends across the plurality of axial grooves of the rotor wheel within each of the circumferential slots of the posts and the blades from a first end to a second end to inhibit axial displacement of the blades within the grooves. The locking key is disposed between the first and second ends of the lockwire and provides support to at least one of the ends of the lockwire to prevent radially inward displacement.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: December 4, 2018
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Leissner F. Poth, Clayton Danyew, David Jesse Warren Lovinger, Sanjay Surat Hingorani
  • Patent number: 10069367
    Abstract: An assembly for use in a rotor of a turbine generator is provided that includes at least one creepage disposed on an upper load surface of copper windings. At least one slot spring is disposed on the creepage, and at least one amortisseur is disposed on the slot spring. A plurality of hollow locking members are disposed within apertures of the creepage, the slot spring, and the amortisseur. At least one slot wedge is disposed on the slot spring and the plurality of hollow locking members. At least one field retaining ring is disposed against one of the end portions of the rotor body and against the slot wedge.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 4, 2018
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Andrew Adam, Mark Roberts
  • Patent number: 6515232
    Abstract: A high voltage bushing comprising an insulator enclosing a conductor and a mounting flange slid over the insulator. The outer surface of the insulator defines a flange seat for contacting one end of the mounting flange. A gasket may be positioned on the flange seat between the insulator and mounting flange to form a gas tight seal to prevent the escape of hydrogen. A layer of epoxy attaches the remaining portion of the mounting flange to the insulator. The insulator of the high voltage bushing is made from a composite material rather than porcelain as is traditionally used, while a high temperature asphalt material is also used.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: February 4, 2003
    Assignee: Mechanical Dynamics & Analysis, LLC.
    Inventor: Raymond L. Forster
  • Patent number: D823992
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: July 24, 2018
    Assignee: Mechanical Dynamics & Analysis LLC
    Inventors: Mark Jeffrey Passino, Jr., Andrew Koonce, Matthew Monty, Dominick Werther, Roy Satzman