Patents Examined by Igor Kershteyn
  • Patent number: 9840930
    Abstract: An airfoil (10) for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more internal cavities (16) having an insert (18) contained therein that forms nearwall cooling channels (20) having enhanced flow patterns is disclosed. The flow of cooling fluids in the nearwall cooling channels (20) may be controlled via a plurality of cooling fluid flow controllers (22) extending from the outer wall (24) forming the generally hollow elongated airfoil (26). The cooling fluid flow controllers (22) may be collected into spanwise extending rows (28), and the internal cooling system (14) may include one or more bypass flow reducers (30) extending from the insert (18) toward the outer wall (24) to direct the cooling fluids through the channels (20) created by the cooling fluid flow controllers (22), thereby increasing the effectiveness of the internal cooling system (14).
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: December 12, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Ching-Pang Lee, Jae Y. Um, Gerald L. Hillier, Wayne J. McDonald, Mohamed Abdullah, Eric Schroeder, Ralph W. Matthews, Zhengxiang Pu
  • Patent number: 9841031
    Abstract: A compressor disc for a compressor of a gas turbine engine includes a circumferentially extending groove for receiving blade roots of a plurality of compressor blades. The circumferentially extending groove includes a planar surface offset into the groove.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 12, 2017
    Assignee: ROLLS-ROYCE plc
    Inventor: Paul Dennis Clarke
  • Patent number: 9834835
    Abstract: A coated substrate comprises: a metallic substrate; a bondcoat atop the substrate; and a ceramic barrier coat atop the bondcoat. The bondcoat has a combined content of one or more of molybdenum, chromium, and vanadium of at least 50 percent by weight.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventors: Christopher W. Strock, Matthew E. Bintz
  • Patent number: 9835168
    Abstract: A casing liner used for a sewage pump includes a surface to face an edge of a blade of an impeller when the casing liner is assembled with the impeller into the sewage pump. At least one groove with given width is formed in at least a part of the surface. The groove includes a first section with given depth, which is located on the side close to a rotational center of the impeller, a second section smaller in depth than the first section, which is located on the side far from the rotational center of the impeller, and a third section that is an inclined face connecting the first and second sections, the first to third sections being arranged in a width direction of the groove.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 5, 2017
    Assignee: EBARA CORPORATION
    Inventors: Hiroshi Uchida, Masahito Kawai, Hiromi Sakacho, Masashi Obuchi, Miho Isono
  • Patent number: 9822760
    Abstract: The present invention preferably relates to a joined blade rotor system having substantially a horizontal axis for a wind turbine including a number of joined blade assemblies extending substantially radially from a central hub wherein each joined blade assembly includes a first blade and a second blade or more blades in different planes that are connected by one or more brace systems to each other. Each central hub includes an operating member to effect pitch rotation of the joined blade assembly or directly the first blade pitch rotation and the second blade pitch rotation about the respective blade axis. A bearing provides a relative rotation between the first or second blade and brace strut while pitch angles change.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: November 21, 2017
    Assignee: Joint Blade Rotor A/S
    Inventors: Siavash Talebi Tahar, Ole Thybo Thomsen
  • Patent number: 9822669
    Abstract: A turbine assembly having an outer casing (36), an inner structural ring (38), and an annular gas path (42) defined between outer and inner flow path walls (44, 46) for conducting a gas flow through the turbine assembly. A plurality of structural struts (52) are spaced apart in a circumferential direction, each strut (52) including a strut body (52a) extending in a radial direction for supporting the inner structural ring (38) to the outer casing (36). A first strut end (64) at a radially outer end of the strut body (52a) is detachably attached to the outer casing (36) with a first fastener structure (68) engaging the outer casing (36), and a second strut end (66) at a radially inner end of the strut body (52a) is detachably attached to the inner structural ring (38) with a second fastener structure (70) engaging the inner structural ring (38).
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 21, 2017
    Assignee: SIEMENS ENERGY, INC.
    Inventors: David J. Wiebe, Jerome H. Katy, Richard Seleski, Benjamin G. Hettinger, Adam Wallace
  • Patent number: 9822793
    Abstract: Three-dimensional (3D) return vane for a multistage centrifugal compressor. The return channel vane extends upstream to a region proximate the bend apex of the return channel. In each point of the return channel vane, the angle “beta” is defined as the acute angle between the tangent to the local camberline and the local circumferential direction. At each normalized position between leading edge and trailing edge, the local twist of the return channel vane is defined as the algebraic difference between the angles beta at the two points at hub and shroud having said normalized position. When moving in streamwise direction from leading edge to trailing edge, the twist first decreases, reaching an algebraic minimum, then increases, reaching an algebraic maximum, then decreases again. However, the absolute twist of the algebraic minimum is larger than the absolute twist of the algebraic maximum.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: November 21, 2017
    Assignee: Nuovo Pignone Srl
    Inventors: Ismail Sezal, Christian Aalburg, Vittorio Michelassi, Giuseppe Sassanelli
  • Patent number: 9816519
    Abstract: A press-fit bearing locking system, apparatus and method is described. A press-fit bearing locking system includes a diffuser having a diffuser groove on an inner diameter (ID), a bushing comprising an outer diameter (OD) press-fit into the grooved ID of the diffuser, the OD of the bushing having a bushing groove tracing a path of the diffuser groove, and a high thermal expansion material (HTEM) key seated within the bushing groove. A press-fit bearing locking method includes seating a HTEM key inside a groove on an OD of a bushing, press-fitting the bushing with HTEM key into a diffuser such that the bushing groove is opposite a groove on an ID of the diffuser, operating an electric submersible pump assembly including the diffuser during a temperature rise, and allowing the HTEM key to expand into the diffuser groove during the temperature rise to lock the bushing against the diffuser.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: November 14, 2017
    Assignee: Summit ESP, LLC
    Inventors: Wesley John Nowitzki, Randy S. Roberts
  • Patent number: 9816384
    Abstract: A power generation apparatus comprises a rotor rotatably mounted to a support and a plurality of vanes extending radially out from the rotor and positioned to be engaged by a moving fluid stream. Each vane includes a wing-shaped main blade having leading and trailing edges, and a co-extensive conditioner blade having leading and trailing edges. The conditioner blade is spaced parallel to the main blade so as to define therebetween a slot having an entrance and an exit. A lift-varying device boarders the slot to vary the lift produced by that vane inversely to the speed of the moving fluid stream so that the rotor turns at a relatively constant rate. The rotor, driven by wind or water, may be coupled to the armature of an induction motor/generator to produce electric power.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: November 14, 2017
    Inventor: Orville J. Birkestrand
  • Patent number: 9816480
    Abstract: The present invention provides a drag-type turbine capable of efficiently extracting kinetic energy of fluid particles orbiting in waves and a wave power generator comprising said drag-type turbine. This turbine is a single bucket drag-type turbine with a single half-pipe bucket and a counterweight oppositely facing the bucket, where fluid particles in orbital motion in a wave impel the bucket and the counterweight to rotate them as a unitary body.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 14, 2017
    Assignee: ALBATROSS TECHNOLOGY LLC
    Inventor: Hiromichi Akimoto
  • Patent number: 9816383
    Abstract: A power generation apparatus comprises a rotor rotatably mounted to a support and a plurality of vanes extending radially out from the rotor and positioned to be engaged by a moving fluid stream. Each vane includes a wing-shaped main blade having leading and trailing edges, and a co-extensive conditioner blade having leading and trailing edges. The conditioner blade is spaced parallel to the main blade so as to define therebetween a slot having an entrance and an exit. A lift-varying device boarders the slot to vary the lift produced by that vane inversely to the speed of the moving fluid stream so that the rotor turns at a relatively constant rate. The rotor, driven by wind or water, may be coupled to the armature of an induction motor/generator to produce electric power.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: November 14, 2017
    Inventor: Orville J. Birkestrand
  • Patent number: 9816525
    Abstract: A fan assembly comprises a fan and a movable fan support. The fan has a motor and a fan blade drivable by the motor to move air in an airflow direction through an opening. The movable fan support is configured to movably support at least the fan. The fan support is mountable adjacent the opening on a first side and comprises extension members extendable from an operating position on the first side of the opening to an access position on a second side of the opening opposite the first side. In the access position, the extension members extend through the opening from the first side to the second side to support the motor and fan blade on the second of the opening for access.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: November 14, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Timothy Logan Sadler, Matthew Thomas Phillips
  • Patent number: 9810230
    Abstract: An impeller for a turbo-machine is provided. The impeller includes a metallic base having a back surface and a front surface opposite to the back surface; at least one blade extending on the front surface of the metallic base; a composite shroud attached to the at least one blade such that plural closed paths are formed by the front surface of the metallic base, the at least one blade and the composite shroud; and a connector configured to attach the composite shroud to the metallic base or the at least one blade.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: November 7, 2017
    Inventors: Iacopo Giovannetti, Massimo Giannozzi, Dino Bianchi, Leonardo Tognarelli, Manuele Bigi, Andrea Massini
  • Patent number: 9810097
    Abstract: A corrugated shield comprises a mounting base and a corrugated ring section. The mounting base is disposed at an aft end of the ring section for securing the shield ring section within a generally annular cavity. The generally annular cavity is defined at least in part by a hot fluid flow path boundary wall, and a radially adjacent and spaced apart cold fluid flow path boundary wall. The corrugated ring section is configured to substantially block a line of sight between the hot fluid flow path boundary wall and the cold fluid flow path boundary wall.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: November 7, 2017
    Assignee: United Technologies Corporation
    Inventors: Alisha M. Davis, Christina S. Liebel, Conway Chuong
  • Patent number: 9810078
    Abstract: Rotary machines including a hybrid rotor with an integrally bladed rotor portion are provided. The integrally bladed rotor portion for the hybrid rotor comprises a rotor disk portion and a blade portion. The rotor disk portion has a peripheral rim configured to mechanically retain an individual rotor blade. The blade portion comprises an integral rotor blade extending outwardly and integrally from the rotor disk portion. The individual rotor blade is configured to extend outwardly from the rotor disk portion in a blade array with the integral rotor blade. The hybrid rotor is also provided and comprises the integrally bladed rotor portion and a plurality of individual rotor blades extending outwardly from the rotor disk portion in a blade array with a plurality of integral rotor blades.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: November 7, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Sean A. Whitehurst, Patrick James McComb
  • Patent number: 9810193
    Abstract: A convertible pump formed of wound flexible tubing having an inlet communicating water to an outlet at an opposite end of the tubing. A paddle wheel with collapsible fins provides power to rotate the pump when in a vertical position. A planar surface of the wound tubing forms a table when pivoted on a stand to a horizontal disposition with the support surface for the stand.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: November 7, 2017
    Inventor: Michael Ingle
  • Patent number: 9810233
    Abstract: An axially-split turbomachine comprising a casing comprised of a first casing portion and a second casing portion, forming a housing for a rotor arranged for rotation therein. The rotor comprises a shaft and at least one impeller mounted on the shaft. The casing comprises at least one shaft passageway through which the shaft extends from the interior of the casing towards the exterior of the casing. The sealing arrangement comprises a linear sealing member, extending between the first and the second casing portions. The sealing arrangement further comprises at least one sealing ring portion surrounding said at least one shaft passageway. The sealing ring portion and the linear sealing member form a continuous sealing body.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: November 7, 2017
    Assignee: Nuovo Pignone Srl
    Inventors: Carlo Del Vescovo, Donato Antonio Rip, Fabrizio Milone
  • Patent number: 9810070
    Abstract: A turbine rotor blade includes a mounting portion that partially defines a cooling circuit within the turbine rotor blade and an airfoil portion that extends radially outward from the mounting portion. The airfoil portion further defines the cooling circuit. The turbine rotor blade further includes a platform portion that is disposed radially between the mounting portion and the airfoil. The platform portion includes a bottom wall, a top wall, a forward wall, an aft wall and a pair of opposing side walls. A cooling plenum that at least partially defines the cooling circuit is defined within the platform portion. The cooling plenum is at least partially defined between the forward wall, the aft wall and between the pair of opposing side walls.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: November 7, 2017
    Assignee: General Electric Company
    Inventors: David Richard Johns, Mark Andrew Jones
  • Patent number: 9810088
    Abstract: A blade outer air seal (BOAS) assembly for an engine case of a gas turbine engine includes a multiple of supported air seal segments and a multiple of floating air seal segments circumferentially alternate with the multiple of supported air seal segments.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 7, 2017
    Assignee: United Technologies Corporation
    Inventors: Thurman C Dabbs, James N Knapp
  • Patent number: 9803495
    Abstract: A bladed rotor assembly includes a bladed rotor and a rotor housing. The bladed rotor has a plurality of blades arranged in a circumferential array around an axis of rotation, and the rotor housing encircles the bladed rotor and has a radially inwardly facing surface. Each of the blades comprises a first, radially extending, edge, a second opposite, radially extending, edge, and a radially distal edge. The radially distal edge has a first end, a second end, and a center portion, with the first end adjoining the first, radially extending, edge, and the second end adjoining the second, radially extending, edge. A clearance between the radially distal edge and the radially inwardly facing surface is a first clearance at the first end, and decreases to a second clearance across the center portion.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: October 31, 2017
    Assignee: ROLLS-ROYCE plc
    Inventor: David Peter Scothern