Patents Examined by Richard A Edgar
  • Patent number: 10119524
    Abstract: The invention relates to a device for accumulating inertial energy having a rotor chamber in housing, a rotor in the rotor chamber having a first end face and a substantially opposite second end face, the rotor being mounted, so that it can be displaced and rotate relative to the housing leaving free a gap between the outer rotor perimeter and the inner perimeter of the rotor chamber, wherein a seal is provided in said gap separating a first section of the rotor chamber and a second section of the rotor chamber, exposing means; creating a differential pressure over the rotor for levitation thereof, wherein the device further comprises stabilizing means for counteracting vibration of the rotor.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 6, 2018
    Assignee: S4 Energy B.V.
    Inventor: Peter Teerlink
  • Patent number: 10119553
    Abstract: A centrifugal fan includes a main plate rotating about an axis of rotation, a shroud having an inlet port for introduction of air, and a plurality of blades circumferentially arranged between the main plate and the shroud so as to form a flow of air by accelerating air introduced through the inlet port. Each blade has a pressure surface formed such that a portion thereof near to the shroud is convex and a portion thereof near to the main plate is concave. The shroud has an inside surface formed as a curved surface, and the curved surface has a diffusion section extending radially. The main plate has a curved surface extending radially, and a curved surface of the shroud in the diffusion section at least partially overlaps with the curved surface formed in the main plate when viewed in a direction of the axis of rotation.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: November 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangyuk Son, Choonmyun Chung, Taeman Yang
  • Patent number: 10119423
    Abstract: A fan hub assembly for a gas turbine engine includes a fan hub that is configured to rotate about an axis. The fan hub has an axially extending aperture and a platform. A fastener is received in the aperture in a slip fit relationship to secure the platform to the fan hub.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: November 6, 2018
    Assignee: United Technologies Corporation
    Inventors: Colin J. Kling, Charles W. Brown, Christopher M. Quinn, Shelton O. Duelm, Peter V. Tomeo, Corey L. Hubbert
  • Patent number: 10119403
    Abstract: An example method of reducing a vibratory response of airfoils that support a shroud includes circumferentially misaligning some of the airfoils in a radially inner array of airfoils with all airfoils of a radially outer array of airfoils, and circumferentially aligning at least one of the airfoils in the radially inner array of airfoils with all airfoils of the radially outer array of airfoils.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: November 6, 2018
    Assignee: United Technologies Corporation
    Inventors: Richard K. Hayford, Steven J. Ford
  • Patent number: 10118694
    Abstract: A rotorcraft rotor comprising a hub made up of a monolithic body of composite material obtained by stacking successive layers of carbon fiber fabric dusted with a thermoplastic resin and compressed while hot. The hub is provided with branches on which respective blades are mounted via hinge systems, each including a strength member bearing radially against a corresponding branch. The strength members are individually received in sockets defined on fabrication so that when the rotor is set into rotation at a predefined operating speed, the radial thrust seat for enabling the strength members to bear against the branches present bearing surfaces that are cylindrical, the radial thrust seats then being of shape complementary to a cylindrical bearing surface of the corresponding strength member.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: November 6, 2018
    Assignee: AIRBUS HELICOPTERS
    Inventors: Matthieu Ferrant, Stephane Mazet
  • Patent number: 10113447
    Abstract: There is proposed a fan casing arrangement for a gas turbine engine (10) of a type having a propulsive fan (12), the fan casing arrangement being configured to circumscribe the fan (12) and having a fan case (24) and a fan track liner. The fan track liner is provided around the inside of the fan case (24) so as to adopt a radial position between the fan (12) and the fan case (24), and the arrangement is configured such that the fan track liner includes a liner ring (25) which is radially outwardly biased against the inside of the fan case (24). A related method of installing a fan track liner in a gas turbine engine is also disclosed.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 30, 2018
    Assignee: ROLLS-ROYCE plc
    Inventors: Simon Read, Steven A Radomski
  • Patent number: 10112709
    Abstract: A rotor system includes a hub assembly, a first, second, and third rotor blade rotatably attached to the hub assembly, a first, second, and third damper pivotally attached to the hub assembly and pivotally attached to the first, second, and third rotor blade, respectively, and a control system operably associated with the first, second, and third damper. A method to control vibratory forces exerted on the hub assembly via the first and second rotor blade includes separately controlling a dynamic spring rate of each of the first and second dampers with the control system.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: October 30, 2018
    Assignee: Bell Helicopter Textron Inc.
    Inventors: David E. Heverly, II, Frank B. Stamps, Michael Smith
  • Patent number: 10113558
    Abstract: A fan housing for an air cycle machine includes a fan exit flow passage and a ring disposed around a center axis of the fan housing and disposed around the fan exit flow passage. The ring includes a first end disposed axially opposite a second end and a guide surface facing radially inward relative the center axis and formed between the first end and the second end. The ring also includes a shelf disposed radially inward from the guide surface. The shelf includes a stop surface extending radially and disposed axially between the second end and the guide surface. The shelf also includes a shelf surface facing radially outward relative the center axis and extending axially between the first end and the stop surface.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: October 30, 2018
    Assignee: Hamilton Sunstrand Corporation
    Inventors: Eric Chrabascz, Seth E. Rosen
  • Patent number: 10107111
    Abstract: A corrosion-resistant abradable covering to adhesively bond to a wear portion of a structural part, the covering including at least a polyester-based matrix and an aluminum alloy filler that are molded together.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: October 23, 2018
    Assignee: Safran Aéro Boosters
    Inventors: Laurent Paul Dudon, Philippe Charles Alain Le Biez, Serge Selezneff
  • Patent number: 10107122
    Abstract: A shroud supports one of an inner and an outer trunnion on a variable vane. The shroud is provided by a first and a second axial half. Each of the axial halves is provided by a plurality of circumferentially spaced segments. Circumferential edges are defined on each of the plurality of circumferentially spaced segments. Edges between adjacent ones of the circumferentially spaced segments on the first half are circumferentially offset from the edges on adjacent ones of circumferentially spaced segments of the second half, such that no direct leakage path exists across an axial width of the shroud.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 23, 2018
    Assignee: United Technologies Corporation
    Inventor: David Maliniak
  • Patent number: 10107104
    Abstract: Airfoils for gas turbine engines are disclosed herein. The airfoils each include a pressure side and a suction side. Vortex-reduction passageways extend from the pressure side to the suction side.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 23, 2018
    Assignee: Rolls-Royce Corporation
    Inventor: Matthew J. Bloxham
  • Patent number: 10107306
    Abstract: A housing for a fan or blower, in particular an axial fan, includes a wall ring (2) having an inlet nozzle section (3), an outer diffuser (6) having an inlet flow opening (7) and an outlet flow opening (8), and a holder for an electric motor (9) of the fan. The holder is arranged in an inner space of the housing. The outer diffuser (6) is formed by at least two partial ring sections that are connected to the outer circumferential surface via mechanical connection elements. The holder includes several struts (14) that are fastened to an inner circumferential surface of the outer diffuser (6) by one end, are circumferentially spaced apart, and are fastened in the edge region of the inlet flow opening (7). The struts can be installed by their other end to a motor flange (16) of the motor housing (17) of the electric motor (9).
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 23, 2018
    Assignee: EBM-PAPST MULFINGEN GMBH & CO. KG
    Inventors: Oliver Haaf, Matthias Maschke, Dieter Best, Thomas Sauer, Sebastian Bundschuh, Sven Beck, Markus Engert, Jürgen Schöne, Alexander Lust, Sebastian Hoss
  • Patent number: 10107114
    Abstract: An exemplary turbomachine rotor assembly includes a pair of spaced rails that extend around a cylindrical surface to define a rotor hub. The rails define a space for receiving blades. Load slots are formed in one of the rails. A relief feature is formed in an opposite surface of an opposing rail. The load slots and relief feature utilized to move at least one of the blades into the space.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: October 23, 2018
    Assignee: United Technologies Corporation
    Inventors: Nicholas Aiello, James Cosby
  • Patent number: 10100815
    Abstract: Frequency analysis units are configured to perform a frequency analysis of vibrations detected by vibration sensors, respectively. A natural frequency detection unit is configured to detect a natural frequency of a wind turbine in accordance with a direction of a nacelle, based on results of the frequency analysis. A change ratio calculation unit calculates a decrease ratio in the natural frequency detected by the natural frequency detection unit. An abnormality detection unit determines that an abnormality is present in the wind turbine if the decrease ratio in the natural frequency calculated by the change ratio calculation unit exceeds a threshold value.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 16, 2018
    Assignee: NTN CORPORATION
    Inventor: Tomoya Sakaguchi
  • Patent number: 10100650
    Abstract: A process of depositing a ceramic coating on an airfoil component and the component formed thereby is provided. The process includes depositing a bond coat on an airfoil component including on a trailing edge region thereof that defines a trailing edge of the airfoil component, within holes located within the trailing edge region and spaced apart from the trailing edge, and on lands located within the trailing edge region and between the holes. A ceramic coating is then deposited on the bond coat including on the trailing edge region of the airfoil component, within the holes located within the trailing edge region, and on the lands between the holes. The ceramic coating within the holes is selectively removed without completely removing the ceramic coating on the trailing edge region and the lands between the holes.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 16, 2018
    Assignee: General Electric Company
    Inventors: Thomas Edward Mantkowski, John Maynard Crow, Shawn Michael Pearson, Stephen Mark Molter
  • Patent number: 10100645
    Abstract: An airfoil for a gas turbine engine includes pressure and suction surfaces provided by pressure and suction walls that extend in a radial direction and are joined at a leading edge and a trailing edge. A cooling passage is arranged between the pressure and suction walls and extends to the trailing edge. Elongated pedestals are arranged in the cooling passage and interconnect the pressure and suction walls. The elongated pedestals are spaced apart from one another in the radial direction and extend from a plane to the trailing edge. A metering pedestal includes at least a portion that is arranged between the plane and the trailing edge. The portion is provided between adjacent elongated pedestals in the radial direction.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: October 16, 2018
    Assignee: United Technologies Corporation
    Inventors: Scott D. Lewis, Gary A. Zess
  • Patent number: 10100806
    Abstract: A bulkhead assembly for a wind turbine blade is described, wherein a pressure relief conduit is provided at the bulkhead to allow for pressure to equalise across the bulkhead. This helps to prevent faults or cracks in the bulkhead assembly due to differences in pressure on either side of the bulkhead. Furthermore, liquid traps and/or filter media can be accommodated in the conduit to prevent the passage of liquids or other matter across the bulkhead.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: October 16, 2018
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Aanchal Saini, Utsa Majumder, Christian Munk Christensen, Christian Roed Lysemose, Peter Hansen, Finn Kjaer Nielsen
  • Patent number: 10094358
    Abstract: Double blade airfoils and related systems are disclosed. The double blade design may efficiently use a minimal amount of material yet achieve exceptional aerodynamic efficiencies well above the previously understood theoretical maximum. The disclosed designs may operate at lower wind speeds than those known in the art. Furthermore, the balance of forces generated by the disclosed designs may also reduce the stress felt by the airfoils and rotor, enhancing the longevity of the system.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: October 9, 2018
    Assignee: Winnova Energy LLC
    Inventor: Yücel Hökelek
  • Patent number: 10087764
    Abstract: An airfoil for a rotor blade or a stator vane of a gas turbine engine having a tip extension extending one or both of the suction and pressure side surfaces adjacent the tip. The tip extension defines a thickness at the tip larger than the true thickness of the airfoil. The tip extension includes a side transitional surface substantially defined along a curve extending tangentially from the corresponding side surface. The tip extension defines a gradual increase in the thickness over a portion of the airfoil having a radial dimension corresponding to at least 2 times the true thickness.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: October 2, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Sean Rockarts, Peter Townsend
  • Patent number: 10087769
    Abstract: A sealing system includes a bolt and a cover plate for sealing a joint between a rotor disk and a blade root of a rotor blade, the blade root being disposed in a blade root slot in the rotor disk. The sealing arrangement is used in particular in a gas turbine.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: October 2, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Sascha Dungs, Karsten Kolk, Peter Schröder