Patents Examined by Logan Kraft
  • Patent number: 10309224
    Abstract: A spring damper includes a split ring body. The split ring body defines a center and a circular gap separating opposed first and second end portions of the split ring body. The first and second end portions are connected by a split ring body segment that is evenly spaced from the center. At least one of the first and second end portions is unevenly spaced from the center in relation to the segment that is evenly spaced with respect to the center.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: June 4, 2019
    Inventors: Mark E. Marler, Megan Phillips
  • Patent number: 10287009
    Abstract: The present invention relates to a blade folding apparatus that may incorporate an overhead blade lifting system that reduces binding loads on blade pins induced by blade weight and pitch, and a folding mechanism that removes the necessity of personnel with external guide-poles to rotate main rotor blades. The apparatus may include flap locks, an overhead lifting system support structure attached to the flap locks, and two blade support beams to create and support a lifting point near each blade's longitudinal and lateral center of gravity. The blade support beams may be fitted with an articulation mechanism that lifts and/or lowers the overhead lifting structure. The apparatus facilitates rapid folding of the main rotor blades, and, when used with blade clamping mechanisms, is capable of aiding in the removal and/or the re-installation of the main rotor blades without external lifting mechanisms.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 14, 2019
    Inventors: Eric Peterson, Jeremiah Schweitzer, Zachary Anderson
  • Patent number: 10266057
    Abstract: A compressed air system contains a compressed air reservoir, a compressed air line system and a drive system connected on an inlet side to the compressed air reservoir by way of the compressed air line system. The drive system has a drive and a drive controller, the drive system has a valve provided so as to pneumatically separate the drive controller from the drive.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: April 23, 2019
    Assignee: Siemens Mobility GmbH
    Inventors: Martin Glinka, Matthias Kurz, Alexander Trupp
  • Patent number: 10260350
    Abstract: An airfoil structure includes an airfoil that has a leading edge and a platform that includes a first side that is attached to the airfoil and a second side opposite the airfoil. The platform includes a relief cut on the second side of the platform axially aligned with the leading edge.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 16, 2019
    Inventors: Carney R. Anderson, William R. Graves
  • Patent number: 10253479
    Abstract: When option attachment has not been attached, a reserve flow/direction control valve 8 is made to operate as a center bypass cut valve. When an option attachment has been attached, switching control is performed. In the switching control, when the option attachment is not used, the reserve flow/direction control valve 8 is made to operate as a center bypass cut valve for adjusting composite opening area of a center bypass and thereby controlling the flow rate of hydraulic fluid flowing into an actuator. When the option attachment is used, the reserve flow/direction control valve 8 is made to operate so as to supply the hydraulic fluid to an option hydraulic actuator 14.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 9, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd
    Inventors: Tomoaki Kaneta, Kouji Ishikawa, Hidetoshi Satake, Shinya Imura
  • Patent number: 10247205
    Abstract: A method of charging a hydro-pneumatic energy storage system is described. The system has a first hydro-pneumatic accumulator with a first hollow vessel. Disposed within the first hollow vessel is a first compressible volume containing a first amount of gas. The system has a second hydro-pneumatic accumulator with a second hollow vessel. Disposed within the second hollow vessel is a second compressible volume containing a second amount of gas. The gas contained in the first volume is pre-pressurized to a first hydrostatic pre-charge pressure and the gas contained in the second volume is pre-pressurized to a second hydrostatic pre-charge pressure. The second pre-charge pressure is higher than the first pre-charge pressure.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: April 2, 2019
    Assignee: Dana Italia SPA
    Inventors: Lorenzo Serrao, Giulio Ornella, Ettore Cosoli
  • Patent number: 10226826
    Abstract: A hydraulic power tool includes a housing defining a cylinder, a piston at least partially positioned within the cylinder and movable between a retracted position and an extended position, a reservoir containing hydraulic fluid, a pump for transferring hydraulic fluid in the reservoir to the cylinder, causing the piston to move from the retracted position toward the extended position, a return valve defining a rotational axis and positioned between the cylinder and the reservoir, and a valve actuator driven by the pump for opening the return valve, thereby fluidly communicating the cylinder and the reservoir, in response to a predetermined pressure being reached in the cylinder.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: March 12, 2019
    Inventors: Sean T. Kehoe, James G. Ballard, Troy C. Thorson, Marc S. D'Antuono, Alex Huber
  • Patent number: 10221718
    Abstract: A turbine engine fan case (48) comprises a composite body member (300) circumscribing an axis (500) and having an annular mounting portion (310, 410), a segmented polymer member (320, 330, 420, 440) along the annular mounting portion, and integrated therewith.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: March 5, 2019
    Assignee: United Technologies Corporation
    Inventors: Steven C. Clarkson, Thomas J. Robertson, Jr., Michael Parkin
  • Patent number: 10215188
    Abstract: A motor casing is provided with a motor rib which is annularly formed along a circumferential direction of a fan while protruding toward a main shroud, and the motor rib is provided with a notch portion in a portion near a high-pressure region in a scroll chamber. A part of moisture flowing into the scroll chamber infiltrates into an inner peripheral space of the motor rib across the motor rib in a low-pressure region in which a flow velocity of ventilation air is high in the scroll chamber. However, the moisture is pressed to the notch portion by ventilation air infiltrating into the inner peripheral space of the motor rib from the low-pressure region in the scroll chamber, and is then discharged to the scroll chamber from the notch portion.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: February 26, 2019
    Inventor: Chie Watanabe
  • Patent number: 10215041
    Abstract: A sealing ring segment for a stator of a turbine, the sealing ring segment has substantially the shape of a cylinder casing segment and has on its outer side a groove for fixing a plurality of guide vanes. The sealing ring segment has, for each guide vane that is fixable to the sealing ring segment, at least one pressure bolt that acts on the respective guide vane by a restoring force, the pressure bolt being able to be fixed and accordingly oriented by a corresponding opening in the sealing ring segment and being configured as a cylindrical element which can be compressed in the axial direction, and wherein the respective pressure bolt has a disk spring and the restoring force of the respective pressure bolt acts in the radial direction with respect to the rotation axis of the turbine in which the sealing ring segment is placed.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: February 26, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thorsten Barz, Roland Habel, Sebastian Stupariu-Cohan
  • Patent number: 10208764
    Abstract: A rotor wheel for an engine includes a plurality of impeller vanes and a plurality of fluid passages defined by adjacent impeller vanes. The fluid passages are radially disposed across at least a portion of the rotor wheel. One or more impeller inserts may be disposed within one or more of the plurality of fluid passages, respectively. The impeller inserts define an impeller passage with a passage shape that controls a flow of fluid through the one or more of the plurality of fluid passages.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: February 19, 2019
    Assignee: General Electric Company
    Inventors: Kiran Sreeram, John Herbert Dimmick, III, Gary Charles Liotta, John Robert Sech, Eric Richard Bonini, Patrick Shawn Reilly
  • Patent number: 10202858
    Abstract: A turbine engine assembly and methods involving a turbine engine assembly are provided. In one method, the turbine engine assembly is received. The turbine engine assembly includes an annular stator vane structure disposed at a first orientation. The stator vane structure is reconfigured with the turbine engine assembly to be disposed at a second orientation.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: February 12, 2019
    Assignee: United Technologies Corporation
    Inventors: John E. Wilber, Kirk S. Hunte, Matthew R. King
  • Patent number: 10202905
    Abstract: A geared architecture for a gas turbine comprising an output shaft for connection with a fan, an input shaft and a gearbox connecting the input shaft with the output shaft. The gearbox has a forward planet carrier plate supported by a forward radially fixed bearing structure and a rearward planet carrier plate supported by a rearward radially fixed bearing structure. By supporting the carrier plates on radially fixed bearing structures the planet carriers can rotate about their own axis to lower vibration and mesh forces within the gearbox.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 12, 2019
    Inventor: Gideon Daniel Venter
  • Patent number: 10196973
    Abstract: The present disclosure provides a variable compression ratio device including a piston, a piston pin, an eccentric cam, a connecting rod, a crank pin, a hydraulic pump, an oil jet injection nozzle, an oil jet control valve, and a control unit. In addition, a groove formed in a rotating direction of the eccentric cam is divided into a first chamber and a second chamber. The piston pin receives a hydraulic pressure through a path formed inside the crank pin and the connecting rod and receives the oil injected from the oil jet injection nozzle to control the hydraulic pressure supplied to the first chamber and the second chamber of the eccentric cam, thereby controlling the rotation position of the eccentric cam.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: February 5, 2019
    Inventor: Won Gyu Kim
  • Patent number: 10196901
    Abstract: A component, e.g. an aerofoil component like a turbine-blade or guide-vane, for a gas turbine engine, including first and second walls defining at least one passage for supply of cooling fluid to a portion of the component to be cooled, the portion including a slot via which cooling fluid passes from the passage to exit of slot for effecting cooling of the portion, wherein the slot includes at least one side wall, pair of opposite side walls, each having surface profile defining array of channels for passage of cooling fluid, and surface profile defining each of arrays of channels is undulating with the respective arrays of channels in two side walls being angled with respect to one another. The resulting internal cross-corrugated cooling arrangement promotes enhanced cooling of the trailing edge or other portion of the component by controlling flow rate of cooling air through slot and exhausted therefrom.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: February 5, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: Tsun H. Wong, Peter T. Ireland, Kevin P. Self
  • Patent number: 10196910
    Abstract: A turbine vane for use in a gas turbine engine is disclosed. The turbine vane includes an inner platform, an outer platform spaced from the inner platform, and an airfoil that extends from the inner platform to the outer platform. The airfoil includes a ceramic-containing web that forms a portion of the airfoil and a metallic load shield that forms another portion of the airfoil.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: February 5, 2019
    Assignee: Rolls-Royce Corporation
    Inventor: Aaron P. Jennings
  • Patent number: 10189564
    Abstract: A pin configured for use in a rotor blade movable between an aligned position and a folded position and having a rotor blade airfoil contour is provided including a cylindrical body configured to couple a first section and a second section of the rotor blade when the rotor blade is in the aligned position. A handle is mounted to an end of the cylindrical body and has an airfoil contour complementary to the rotor blade airfoil contour. The handle is movable between an open position and a closed position. When the handle is in the closed position, the handle is flush with an adjacent portion of the rotor blade. When the handle is in the open position, the handle is accessible to pull the cylindrical body from the first and second section s of the rotor blade.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 29, 2019
    Inventors: David A. Darrow, Jr., Frank P. D'Anna
  • Patent number: 10190595
    Abstract: A gas turbine engine compressor blade includes an airfoil and a root section connected to a blade platform therebetween and an at least partially curved cropped corner of the blade platform. The corner shape and size may avoid resonance of blade during engine operation. The corner may be J-shaped including a straight section extending from the pressure side edge towards the suction side edge of the platform and a curved section extending from the straight section to an uncropped portion of the platform trailing edge of the platform. A method of designing the cropped corner includes choosing shapes and sizes of the cropped corner for numerically analyzing and determining shape and size for the cropped corner using a numerical model to iteratively numerically analyze aerodynamically the cropped platform with different shapes and sizes of the cropped corner. The numerical model may be validated with engine or component testing of the blade having a cropped platform with at least one of the shapes and sizes.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: January 29, 2019
    Assignee: General Electric Company
    Inventors: Qiang Li, Aaron Phillip King, Toby George Darkins, Jr., Anthony Joseph Maurer
  • Patent number: 10190495
    Abstract: A disclosed gas turbine engine includes a compressor section including a first compressor disposed axially forward of a second compressor, a combustor in fluid communication with the compressor section and a turbine section in fluid communication with the combustor. The turbine section includes a first turbine driving the first compressor and a second turbine driving the second compressor. An inner shaft defines a driving link between the second compressor and the second turbine and an outer shaft defines a driving link between the first compressor and the first turbine. The inner shaft and the outer shaft are concentric about a common axis of rotation. A bumper is disposed on the inner shaft within an axial region common to an aft portion of the outer shaft for accommodating interaction between the inner and outer shafts during high load conditions.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: January 29, 2019
    Assignee: United Technologies Corporation
    Inventors: Pedro Laureano, Frederick M. Schwarz
  • Patent number: 10190427
    Abstract: A turbine nozzle box includes an annular outer ring plate, an annular nozzle unit, and an annular inner ring plate. The annular outer ring plate is operable to be disposed in a turbine such that an outer peripheral surface thereof is adjacent to an inner peripheral surface of an inner casing of the turbine. The annular nozzle unit is disposed adjacent to an inner peripheral surface of the outer ring plate. The annular inner ring plate is disposed such that an outer peripheral surface thereof is adjacent to an inner peripheral surface of the nozzle unit. The nozzle unit includes a plurality of segment blocks circumferentially installed at an arc angle. The segment blocks are disposed at an inlet end of a first-stage nozzle unit, and an outlet end of the first-stage nozzle unit is open.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 29, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Dong Woo Kang, Hae Sang Jeong, Cheol Hong Kim