Patents Examined by Ninh H. Nguyen
  • Patent number: 9835164
    Abstract: A compressor impeller assembly is disclosed. The compressor impeller assembly may have a compressor impeller having an impeller bore. The compressor impeller assembly may further have an insert screwed into the impeller bore, the insert having a threaded insert bore. The compressor impeller assembly may also have a shaft having a threaded shaft bore. In addition, the compressor impeller assembly may have a stud. The stud may have a first threaded portion engaged with the threaded insert bore. The stud may also have a second threaded portion engaged with the threaded shaft bore.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: December 5, 2017
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Gary R. Svihla, Raji Rexavier
  • Patent number: 9835137
    Abstract: A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least two blades, each blade having a variable pitch angle. The method comprises determining mechanical loads on the blades, determining an asymmetric load moment experienced by the turbine rotor based on the mechanical loads on the blades, determining high order harmonics from the asymmetric load moment, and determining an individual pitch control signal for each of the blades for varying the pitch angle of each blade to compensate for the asymmetric load moment. The individual pitch control signal for each blade is determined at least based on the high order harmonics.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: December 5, 2017
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Martin Atzler, Per Brath, Thomas Kr├╝ger, Ali Zaib
  • Patent number: 9835033
    Abstract: A hybrid airfoil according to an exemplary aspect of the present disclosure includes, among other things, a leading edge portion made of a first material, a trailing edge portion made of a second material, and an intermediate portion between the leading edge portion and the trailing edge portion made of a non-metallic material. A rib is disposed between the leading edge portion and the intermediate portion. A protrusion of one of the rib and the intermediate portion is received within a pocket of the other of the rib and the intermediate portion.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: December 5, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Sergey Mironets, Edward F. Pietraszkiewicz, Alexander Staroselsky, Mark F. Zelesky
  • Patent number: 9835132
    Abstract: A wind or tidal turbine blade having an attachment, the attachment including: a support portion of the turbine blade, the support portion having opposite surfaces; an insert adapted to mount a bolt for attaching the support portion to another structure; and a mounting for fitting the insert to the support portion, the mounting including a layer extending over a front face of the insert and bonded to the opposite surfaces of the support portion on opposite sides of the insert, the layer permitting passage of a bolt therethrough to or from the insert.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: December 5, 2017
    Assignee: Gurit (UK) Ltd.
    Inventors: Luke Neil McEwen, Frederic Herve Louarn, Anthony James Chignell
  • Patent number: 9827735
    Abstract: An erosion resistant and hydrophobic article includes a core that has a first hardness and a surface on the core. The surface includes a plurality of geometric features that have a second, greater hardness. The geometric features define a surface porosity by area percent and a corresponding surface solidity by area percent. The surface includes a ratio of the surface solidity divided by the surface porosity that is 1.8 or greater. The geometric features and the ratio establish the surface to be hydrophobic, and the second, greater hardness and the ratio establish an erosion rate of the surface that is equal to or less than an erosion rate of the core under identical erosion conditions.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: November 28, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Wayde R. Schmidt, James T. Beals, Aaron T. Nardi
  • Patent number: 9829009
    Abstract: The present document describes a centrifugal ceiling fan. The fan comprises a casing, a motor and a centrifugal propeller. The casing comprises an upper surface comprising an air inlet and a lower surface comprising an air outlet. In an embodiment, the lower surface has a round bowl-like shape including a plurality of openings defining the air outlet. The propeller comprises a shaft and a plurality of blades provided around the shaft. The blades may be curved to push the air in all directions between a first direction substantially perpendicular to the rotation shaft and a second direction substantially parallel to the rotation shaft in order to evenly ventilate the room. The fan may include a heating element for heating the air as it exits from the fan.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 28, 2017
    Assignee: P.A.C. INTERNATIONAL INC.
    Inventor: Alessandro Seccareccia
  • Patent number: 9828914
    Abstract: A thermal management system and method of circulating air in a gas turbine engine are disclosed. The thermal management system includes a nose cone having an aperture communicating air to an interior space of the nose cone and a fan blade coupled to the nose cone and having a blade passage, wherein the nose cone rotates with the fan blade to circulate air from the aperture to the blade passage.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: November 28, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Gabriel L. Suciu, Jesse M. Chandler
  • Patent number: 9822788
    Abstract: The present invention relates to a vacuum pump comprising a vacuum pumping mechanism comprising a rotor supported for rotation by a drive shaft, a first bearing assembly for controlling movement of the rotor during rotation of the drive shaft, a back-up bearing assembly for limiting said movement and a sensor for sensing when said movement is limited by the back-up bearing assembly.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: November 21, 2017
    Assignee: Edwards Limited
    Inventors: Mohammad Eghtesadi Bahrami, Richard Glyn Horler
  • Patent number: 9822654
    Abstract: A cooled wall segment in the hot gas path of a gas turbine. The wall segment includes a first surface, exposed to a medium of relatively high temperature, a second surface, exposed to a medium of relatively low temperature, and side surfaces connecting the first and second surface and defining a height of the wall segment. At least one cooling channel for a flow-through of a fluid cooling medium extends through the wall segment. Each cooling channel is provided with an inlet and an outlet for the cooling medium. The at least one cooling channel includes at least two heat transfer sections, a first heat transfer section extending essentially parallel to the first surface at a first distance from the first surface and a second heat transfer section extending essentially parallel to the first surface at a second distance, whereby the second distance is less than the first distance.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: November 21, 2017
    Assignee: ANSALDO ENERGIA IP UK LIMITED
    Inventors: Herbert Brandl, Andrey Anatolievich Sedlov, Artem Ivanov
  • Patent number: 9822657
    Abstract: The aircraft-engine gas turbine includes an outer sealing ring for sealing an array of rotor blades that can be attached to a housing by a clamping mechanism (80) in a friction fit, and a plurality of ring segments (20i, 20i+1), wherein a free axial path length (af) of a sealing ring segment counter to the direction of through-flow is at least as large as an axial engagement (a1) of a rotation locking member (10) of the outer sealing ring (af?a1), which is free of form fit counter to the direction of through-flow, and/or an axial overhang (a2) of a radial mounting rail (23) of the outer sealing ring (af?a2), and/or an axial offset (a3, a4) of a sealing fin (31, 41); and/or a quotient of a specific clearance sum of the outer sealing ring attached to the housing in a friction fit.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: November 21, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Walter Gieg, Petra Kufner, Rudolf Stanka
  • Patent number: 9822767
    Abstract: A floating-body type wind turbine power generating apparatus includes a floating body floating on a water surface; and a wind turbine disposed on the floating body and configured so that at least a part of the wind turbine is submersible. The wind turbine includes: at least one blade; a hub to which the blade is mounted; a tower erected on the floating body; a nacelle disposed on the tower; a first electrical device disposed inside the hub or the nacelle; and a second electrical device connected to the first electrical device via a cable and configured to be movable relative to the tower in a vertical direction so as not be submerged upon submergence of the wind turbine.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: November 21, 2017
    Assignee: MHI VESTAS OFFSHORE WIND A/S
    Inventor: Tomohiro Numajiri
  • Patent number: 9822651
    Abstract: A runner assembly includes a runner with an aperture, a cradle, and a fastener. The cradle includes a planar base with an aperture, a tab extending from the base, and fingers extending from the base. The fastener extends through the apertures for attaching the runner to the cradle, and the fingers are adjacent to the runner and constrain the runner with respect to the cradle and the fastener.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 21, 2017
    Assignee: United Technologies Corporation
    Inventor: Ryan Edward LeBlanc
  • Patent number: 9816518
    Abstract: A centrifugal impeller for a turbomachine is provided. The centrifugal impeller comprises a plurality of aerodynamic vanes, each of the aerodynamic vanes having internal walls on which is associated a fabric element.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: November 14, 2017
    Inventors: Massimo Giannozzi, Iacopo Giovannetti, Andrea Massini, Bulent Aksel, Christophe Lanaud, Julian O'Flynn, Scott Finn
  • Patent number: 9809300
    Abstract: In response to a torque that is applied to a clutch module not exceeding a torque threshold, the clutch module is locked where a blade is configured to be at a first pitch angle in response to the clutch module being locked. In response to the torque that is applied to the clutch module exceeding the torque threshold, the clutch module is released where the blade has a range of motion which extends from the first pitch angle to a second pitch angle in response to the clutch module being released.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: November 7, 2017
    Assignee: Kitty Hawk Corporation
    Inventors: Steffen Kuentzel, Damon Vander Lind
  • Patent number: 9810239
    Abstract: An electric blower includes a centrifugal impeller, a diffuser including stationary vanes on a discharge side of the centrifugal impeller, a motor configured to drive the centrifugal impeller, a fan case configured to cover the centrifugal impeller and the diffuser, a housing case joined to the fan case, and return guide vanes that guide air which has been guided by the stationary vanes to an inner surface of the fan case radially inward through a space under the diffuser. The housing case includes an annular lower plate portion located axially below the diffuser. Each return guide vane is continuous with an upper surface of the annular lower plate portion. An upper end of each return guide vane is located axially opposite to the diffuser.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 7, 2017
    Assignee: NIDEC CORPORATION
    Inventor: Ryosuke Hayamitsu
  • Patent number: 9810091
    Abstract: A method is provided for calibrating an active clearance control system for a plurality of turbine engines. During this method, a squeeze test is performed between a tip of a rotor blade and a shroud. Results of the squeeze test are applied to adjust a gap between the tip and the shroud. The performance of the squeeze test and the application of the results may be individually performed for each of the turbine engines.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 7, 2017
    Assignee: United Technologies Corporation
    Inventors: Kevin Zacchera, Patrick D. Couture
  • Patent number: 9810240
    Abstract: A pump is provided which includes a pump housing, a drive shaft rotatably installed in the pump housing through a ball bearing, a pulley integrally connected to one end of the drive shaft through a flange wall, an impeller connected to the other end of the drive shaft, a cylindrical base part integrally connected to an outer periphery of the flange wall and six through openings formed in an outer peripheral part of the flange wall, in which each of the through openings has, at a generally middle part of a bottom surface of an inner surface thereof, a pathway groove that extends substantially along an inner cylindrical surface of the cylindrical base part, so that the performance of discharging water, dust and the like from the through openings formed in the flange wall is increased.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: November 7, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yusuke Furusawa, Masahiko Watanabe
  • Patent number: 9803482
    Abstract: A rotor for at least one of a turbine and a compressor of a supercharging device may include a shaft defining an axis of rotation and at least one impeller. The at least one impeller may have a thread which is arranged coaxially to the axis of rotation. The shaft may include a complementary thread which is arranged coaxially to the axis of rotation. The shaft and the at least one impeller may be secured together via the respective threads. The shaft and the at least one impeller may be fixed with respect to one another via at least one of a soldered connection, a welded connection, an adhesive bond, a clamped connection and a crystallization connection.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: October 31, 2017
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Thomas Striedelmeyer, Jochen Schray, Andreas Prang, Christian Holzschuh
  • Patent number: 9803496
    Abstract: A blade outer air seal for use in a gas turbine engine having an axis of rotation includes a main body having a mating face configured to face, be positioned radially outward from, and be positioned adjacent to a rotor blade of the gas turbine engine. The blade outer air seal also includes an axial member extending aft from the main body, having a first radial face configured to face a second radial face of an outer diameter platform of a stator of the gas turbine engine, and having a first abradable material coupled to the first radial face.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: October 31, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Paul M. Lutjen, Richard K. Hayford
  • Patent number: 9803644
    Abstract: A back-to-back centrifugal pump comprising a pump inlet, a pump outlet, a pump shaft, a set of first stages, and a set of second stages in a back-to-back arrangement. Between the two sets of stages an intermediate crossover module is arranged. The first and second sets of stages comprise respective first outer diaphragms and second outer diaphragms. The outer diaphragms and the intermediate crossover module are stacked together and form a pump casing. The intermediate crossover module forms at least one axial transfer channel between the two sets of stages, and a fluid connection between the set of second stages and the pump outlet. The second diaphragms comprise each at least one peripherally arranged through aperture. The through apertures are aligned to form at least one passageway, which fluidly connects the axial transfer channel with a most upstream one of the impellers of the second set of stages.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: October 31, 2017
    Assignee: Nuovo Pignone SRL
    Inventors: Lorenzo Bergamini, Donato Antonio Ripa, Fabrizio Milone