Formed With Main Spar Patents (Class 416/226)
  • Patent number: 11911987
    Abstract: Provided is a wind turbine blade, with a generally hollow blade body including half shells and webs the webs including flanges connecting the respective web to the respective half shell, and with webs being supported via reinforcement structures relative to the respective half shell, which reinforcement structures are arranged between an outer and an inner layer of each half shell and extend in the lengthwise direction of the blade, whereby the reinforcement structures each include at least one stack composed of several glass fiber layers infused with resin, and that at least one stiffening element extending parallel to the first and second reinforcement structures over at least a part of their length including at least one stack composed of several pultruded composite strips including carbon fibers with the strips being fixed in the resin is arranged between the first and second reinforcement structures.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: February 27, 2024
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY INNOVATION & TECHNOLOGY S.L.
    Inventors: Mikel Atutxa Briones, Pedro Jato Losfablos, Jorge Lana Galdeano, Nicolas Rojo Saiz, Javier Yuste Soler
  • Patent number: 11668277
    Abstract: A rotor blade for a wind turbine includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface and an internal support structure. The first blade segment includes a beam structure extending lengthwise that structurally connects with the second blade segment via a receiving section. The rotor blade also includes at least one chord-wise extending pin positioned through the chord-wise joint so as to secure the first and second blade segments together. Further, the chord-wise extending pin includes a hollow cross-section that extends from a trailing edge end to a leading edge end thereof.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: June 6, 2023
    Assignee: General Electric Company
    Inventors: Ashley Simone Wilford, Jon Stuart Wright, Scott Jacob Huth
  • Patent number: 11572162
    Abstract: An apparatus for securing first and second skins to a core in a composite rotor blade includes an elongated member configured to be installed through a passage in the core of the composite rotor blade. The elongated member has a first end configured to be attached to an outer surface of the first skin and a second end configured to be attached to an outer surface of the second skin. The apparatus also includes a first patch configured to adhere the first end to the outer surface of the first skin, and a second patch configured to adhere the second end to the outer surface of the second skin such the elongated member extends from the outer surfaces of the first and second skins through the passage in the core.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: February 7, 2023
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Kenneth F. Deyo, Andrew Paul Scott, Frank M. Caputo, William P. Fallon, Jr.
  • Patent number: 11530679
    Abstract: An insert (105) for a wind turbine blade root. The insert (105) has a bushing (40) and an outer surface with circumferential annular grooves (68). A transition layer 5 (102) is built up around the bushing (40). The transition layer (102) has fibrous material sheet layers and filamentary material windings (80) in the grooves which alternate with fibrous plies (98) covering the grooves (68). Each fibrous ply (98) is anchored into the grooves (68) by the windings (80). Fibrous battens (148) are fitted around the transition layer (102) to form an insert body (108). Each batten (148) 10 has a deltoid cross-section so that the battens give the insert a quadrilateral or trapezoidal cross-section.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 20, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Jonathan Smith, James Smith, Robert Ernst, Mark Folsom
  • Patent number: 11519383
    Abstract: The present invention relates to a wind turbine blade (10) comprising a shell body with at least one pressure side shell member (36) and at least one suction side shell member (38), and a plurality of shear webs (70) arranged within the shell body. The plurality of shear webs (70) is successively arranged spanwise within the shell body such that adjacent shear webs overlap along part of their spanwise extent (L), wherein a gap (88) in the chordwise direction is provided between adjacent shear webs (70).
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: December 6, 2022
    Assignee: BLADE DYNAMICS LIMITED
    Inventor: Andrea Avaldi
  • Patent number: 11486350
    Abstract: The present invention relates to wind turbine blade and a method of manufacturing the wind turbine blade. An aerodynamic shell is provided with a recess (70) at its inner surface, the recess (70) extending with-in the shell along a spanwise direction of the blade. A first region of the recess (70) has a first width and a second region of the recess (70) has a second width exceeding the first width. A transition region is provided between the first region and the second region of the re-cess. A first and a second spar cap (80, 82) are arranged within the shell.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: November 1, 2022
    Assignee: LM WIND POWER A/S
    Inventors: Klavs Jespersen, Lars Nielsen
  • Patent number: 11454208
    Abstract: A pultruded fibrous composite strip, a spar cap made from such strips, a wind turbine rotor blade having such a spar cap and a method for making a spar cap from such strips is provided. The strip is stacked with similar strips to form the spar cap. The strip has a substantially constant cross-section defined by first and second mutually opposed and longitudinally extending sides, and by first and second longitudinal edges. The first and the second sides include first and second abutment surfaces, respectively. The first and the second abutment surfaces are non-planar. When the strip is stacked with similar strips, and subsequently integrated within shell of the wind turbine blade, the non-planar profile of the strips at least partially obviates formation of resin rich pockets at the interface of the spar cap and the shell and/or stress concentration between the edges of the spar cap and the shell.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 27, 2022
    Inventors: Donato Girolamo, Jens Jørgen Østergaard Kristensen, Michael Noerlem
  • Patent number: 11427350
    Abstract: A method of forming a rotor blade, including forming at least one of a partial upper skin, a partial lower skin, and a partial support network using an additive manufacturing process; and forming a first receptacle in at least a one of the partial upper skin, the partial lower skin, and the partial support network using the additive manufacturing process. The first receptacle is configured to receive of at least one of an electronic component and a mechanical component. In some embodiments, there is a method of manufacturing a rotor blade that includes forming a first locating receptacle in at least one of the upper skin, the lower skin, and the support network using the additive manufacturing process; and positioning at least one of the upper skin, the lower skin, and the support network in a desired position on a fixture based, in part, on the first locating receptacle.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: August 30, 2022
    Assignee: Textron Innovations Inc.
    Inventor: Justin A. Rivera
  • Patent number: 11396815
    Abstract: A structure for a trailing edge portion of a rotor blade, wherein the rotor blade has a leading edge, a trailing edge, and opposed upper and lower airfoil profiles each beginning at the leading edge and terminating at the trailing edge. The structure includes an inner core having a generally caret-shaped cross-sectional profile and upper and lower skins adhered to the inner core. The upper and lower skins have respective first and second portions adhered to the inner core, and respective third portions which are adhered to each other and which extend aftward to proximate the trailing edge. An upper pocket is defined by the second and third upper skin portions and the upper airfoil profile, and a lower pocket is defined by the second and third lower skin portions and the lower airfoil profile. The upper and lower pockets are filled with a fairing compound and/or an expandable adhesive.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: July 26, 2022
    Assignee: The Boeing Company
    Inventor: Nicklaus C. Kimball
  • Patent number: 11346320
    Abstract: A wind turbine blade has a blade body and a leading edge fairing. The blade body has a root, a tip, and a longitudinal direction extending between the root and the tip. The 5 blade body also has a channel extending in the longitudinal direction. The leading edge fairing has a projection extending into the channel and extending in the longitudinal direction so as to be received in the channel. Also, a leading edge fairing for attachment to a blade body of a wind turbine blade; a method of fitting a leading edge fairing to a wind turbine blade; and a kit of parts with a number of the leading edge fairings.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: May 31, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Gerner Larsen, Ian Stewart
  • Patent number: 11338913
    Abstract: An autogyro rotor blade for generating lift by autorotation defines a root-side inner profile region, which has a first profile. The inner profile region has a tip-side main profile region, which has a second profile different from the first profile, and a profile depth curve that decreases monotonically in the longitudinal direction of the autogyro rotor blade from the region of the blade root in the direction of the blade tip. The autogyro rotor blade has a twist having a twist curve that decreases monotonically from the region of the blade root in the direction of the blade tip. The twist curve has a variable slope in the inner profile region and/or main profile region, and therefore the twist curve is concavely curved in this region.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: May 24, 2022
    Inventor: Christoph Fraundorfer
  • Patent number: 11330812
    Abstract: The present invention provides a mosquito trapping device, which comprises a carbon dioxide generating module, a temperature control module, a humidity control module, and a mosquito-killing module. The carbon dioxide generating module comprises a container A and a container B, a solution in the container A reacts with a solution in the container B to generate carbon dioxide; the temperature control module controls a temperature of the mosquito trapping device to be between 38° C. and 45° C.; the humidity control module controls humidity of the mosquito trapping device to be between 50% and 80%; the mosquito-killing module generates a guiding wind having a wind speed of 0.7 m/s to 15 m/s. The present invention has a good mosquito-attracting effect and a desirable mosquito-killing ability.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: May 17, 2022
    Assignee: Foshan GreenYellow Electric Technology Co., Ltd.
    Inventors: Xinzong Qin, Ruofei Wang, Keke Hu
  • Patent number: 11280201
    Abstract: An airfoil vane includes an airfoil section including an outer wall that defines an internal cavity; and a baffle situated in the internal cavity, the baffle including a baffle wall that defines a central cavity having a leading end and a trailing end corresponding to a leading end and a trailing end of the airfoil section, and a tail extending from the baffle wall, the tail including at least one feature configured to disturb an airflow surrounding the tail. A baffle for the airfoil vane assembly and a method of assembling a ceramic matrix composite airfoil vane are also disclosed.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: March 22, 2022
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Adam P. Generale, Lucas Dvorozniak, San Quach, Bryan P. Dube
  • Patent number: 11280314
    Abstract: A pultruded fibrous composite strip for wind turbine spar caps, a spar cap having such a strip, and a wind turbine blade having such spar cap. The strip has longitudinally extending unidirectional fibers and an elongate body having first and second edge regions separated in the longitudinal direction of the strip by an intermediate region. The intermediate region has first and second mutually opposed longitudinally extending and parallelly disposed planar surfaces. The strip's thickness is measurable perpendicular to the planar surfaces and the width is measurable parallel to the planar surfaces and perpendicular to the longitudinal direction of the strip. In the strip, the first and/or the second edge regions, starting from the intermediate region and extending longitudinally, simultaneously tapers along the width and the thickness of the strip.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: March 22, 2022
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Donato Girolamo
  • Patent number: 11231010
    Abstract: A modular wind turbine blade is described. The modular blade comprises a first blade 5 module having a first spar cap extending longitudinally in a spanwise direction and a second blade module having a second spar cap extending longitudinally in the spanwise direction. The blade modules are configured for connection end-to-end via their respective spar caps. The first spar cap comprises first and second beams arranged side-by-side, each beam having a tapered end defining a scarfed surface. The tapered end of the first 10 beam extends beyond the tapered end of the second beam. The second spar cap comprises first and second beams arranged side-by-side, each beam having a tapered end defining a scarfed surface. The tapered end of the second beam extends beyond the tapered end of the first beam.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: January 25, 2022
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonathan Smith
  • Patent number: 11215161
    Abstract: A winglet is provided for retrofitting to a wind turbine. Aerodynamic and centrifugal forces for winglets having a range of configurations including winglet height, taper ratio, twist, and cant angle are modeled, wherein the winglet height, taper ratio, twist, and cant angle are used to define a grid in a Vector Lattice. An increase in a coefficient of power Cp of each winglet design when applied to a predetermined main blade of the wind turbine can be determined. A winglet configuration can then be selected wherein the coefficient of power Cp of the main blade and winglet is at least 2% greater than the coefficient of power Cp of the main blade alone, and wherein a ratio of normal aerodynamic force generated by the winglet to centrifugal force generated by the winglet during rotation at a nominal rated speed is in a range between 0.75 and 2.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: January 4, 2022
    Assignee: Wichita State University
    Inventors: Leonard Scott Miller, Vijay Matheswaran
  • Patent number: 11203936
    Abstract: An airfoil includes a body that has rib nodes that each define a node cavity therein. A cover panel is carried on the body over the rib nodes. The cover panel includes tabs that project into the node cavities. Plugs are disposed in the node cavities and pinch the tabs against the node cavities to lock the cover panel on the body.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 21, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Eric W. Malmborg, Larry Foster
  • Patent number: 11149560
    Abstract: An airfoil assembly includes a vane that includes an outer platform, an inner platform, and an airfoil. The outer platform defines an outer boundary of a gas path. The inner platform is spaced apart axially from the outer platform relative to an axis and defines an inner boundary of the gas path. The airfoil extends axially between and interconnects the outer platform and the inner platform.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 19, 2021
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc.
    Inventors: Michael J. Whittle, Daniel K. Vetters, Ted J. Freeman, Eric Koenig, Jeff Crutchfield, Jeffrey A. Walston, David J. Thomas
  • Patent number: 11022094
    Abstract: The present disclosure is directed to a method of assembly of a rotor blade for a wind turbine. The method includes placing a first rotor blade section onto a first set location of an assembly fixture, wherein the first rotor blade includes a first locating datum such that the assembly fixture at the first set location constrains movement of the first rotor blade section at the first locating datum along a first direction; placing the first rotor blade section onto a second set location of the assembly fixture, wherein the first rotor blade includes a second locating datum such that the assembly fixture at the second set location constrains movement of the first rotor blade section at the second locating datum along a second direction; and positioning a second rotor blade section onto the first rotor blade section within the assembly fixture.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: June 1, 2021
    Assignee: General Electric Company
    Inventors: Danilo Veljkovic, Brian Scott Redmon, Roland Joseph Menassa, Thomas Merzhaeuser, Daniel Alan Hynum, Alan M. Walker, Shridhar Champaknath Nath
  • Patent number: 11014656
    Abstract: The present invention includes a balancing system that includes a weight box, mounted substantially within the rotor-blade spar, flush with a rotor-blade spar outer surface, operably accessible from a rotor-blade tip, and retained within the rotor-blade spar by a weight-box retention pin, one or more weight-box contact surfaces bonded to a rotor-blade-spar inner surface, or a weight-box lip providing a bearing contact with an edge of a spar rotor-blade spar cutout; and a weight package attached to the weight box, the weight package including a weight-box cover, two or more weight guide-rods attached to the weight-box cover, wherein one of the two or more weight guide-rods is positioned forward of a pitch change axis or center of twist and wherein one of the two weight guide-rods is positioned aft of the pitch change axis or center of twist, and one or more balance weights mounted on the weight guide-rods.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: May 25, 2021
    Assignee: BELL HELICOPTER TEXTRON INC.
    Inventors: Jared Mark Paulson, Bryan Marshall, Christopher E. Foskey
  • Patent number: 10914285
    Abstract: A spar cap for a rotor blade of a wind power installation, having a longitudinal extent from a first end to a second end, a transverse extent orthogonal to the longitudinal extent, and a thickness orthogonal to the longitudinal extent and to the transverse extent. A method for producing a spar cap as mentioned at the outset.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: February 9, 2021
    Assignee: Wobben Properties GmbH
    Inventors: Florian Rubner, Daniel Vinke
  • Patent number: 10858090
    Abstract: A composite assembly has an outer spar component having an outer spar component inner profile, an inner spar component having an inner spar component outer profile substantially complementary to the outer spar component inner profile, and an adhesive disposed between the outer spar component and the inner spar component.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: December 8, 2020
    Assignee: BELL TEXTRON INC.
    Inventors: Ronald J. Measom, Mitchell Elvin Rains
  • Patent number: 10830205
    Abstract: The present disclosure is directed to a modular rotor blade constructed of thermoset and/or thermoplastic materials for a wind turbine and methods of assembling same. The rotor blade includes a pre-formed main blade structure constructed, at least in part, from a thermoset material. The rotor blade also includes at least one blade segment configured with the main blade structure. The blade segment(s) is constructed, at least in part, of a thermoplastic material reinforced with at least one fiber material.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: November 10, 2020
    Assignee: General Electric Company
    Inventors: James Robert Tobin, Christopher Daniel Caruso, Aaron A. Yarbrough, Daniel Alan Hynum
  • Patent number: 10822954
    Abstract: A rotorcraft rotor blade assembly includes a stub spar extending less than a full span of the rotor blade assembly. An upper skin portion extends substantially the full span of the rotor blade assembly. A lower skin portion extends substantially the full span of the rotor blade assembly. The stub spar is positioned between the upper skin portion and the lower skin portion.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: November 3, 2020
    Assignee: BELL HELICOPTER TEXTRON INC.
    Inventors: Paul K. Oldroyd, Drew Sutton, Andrew Maresh, Christopher Foskey
  • Patent number: 10794359
    Abstract: A jointed wind turbine rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint line. Each of the blade segments includes a pressure side shell member and a suction side shell member. A sealing tape is applied over the shell members so as to bridge across the chord-wise joint line. The sealing tape includes side edges that are aligned parallel with airflow over the shell members at the chord-wise joint line at a defined load and operational condition on the jointed wind turbine blade.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: October 6, 2020
    Assignee: General Electric Company
    Inventors: Thomas Merzhaeuser, Andreas Herrig
  • Patent number: 10773432
    Abstract: The invention concerns a method for the production of a composite component from at least one hollow profile base element and at least one supporting element positioned in the interior of the at least one hollow profile base element.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 15, 2020
    Assignee: LANXESS Deutschland GmbH
    Inventor: Boris Koch
  • Patent number: 10760544
    Abstract: A jointed rotor blade assembly may include a first blade segment having a first outer shell terminating at a first joint end and a second blade segment coupled to the first blade segment at a blade joint. The second blade segment may include a second outer shell terminating at a second joint end. The outer shells may overlap one another at the blade joint such that an overlapping region is defined between the first and second joint ends. In addition, the first outer shell may be spaced apart from the second outer shell along at least a portion of the overlapping region such that a gap is defined between the outer shells within the overlapping region. Moreover, the rotor blade assembly may include a sealing member positioned between the outer shells within the overlapping region that is configured to allow relative movement between the outer shells at the blade joint.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: September 1, 2020
    Assignee: General Electric Company
    Inventors: Aaron A. Yarbrough, Christopher Daniel Caruso, Donald Joseph Kasperski, Daniel Alan Hynum
  • Patent number: 10723090
    Abstract: The present disclosure provides a method of manufacturing a composite laminate structure of a wind turbine blade part by means of resin transfer moulding, preferably vacuum-assisted resin transfer moulding. In a resin transfer moulding, fibre-reinforcement material is impregnated with liquid resin in a mould cavity. The mould cavity comprises rigid mould part having a mould surface defining a surface of the wind turbine blade part. The method comprises alternately stacking on the rigid mould part: i. a number of unidirectional fibre-reinforcement layers comprising electrically conductive fibres, such as carbon fibres, and ii.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: July 28, 2020
    Assignee: LM WP PATENT HOLDING A/S
    Inventors: Lars Nielsen, Klavs Jespersen
  • Patent number: 10710712
    Abstract: An afterbody for a rotor blade of a rotorcraft is unitarily formed of a single material of construction. The afterbody includes an upper surface disposed from a lower surface, a concave leading edge connected to the upper surface and the lower surface, and a trailing edge formed at an intersection of the upper surface with the lower surface.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 14, 2020
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Joel J. McIntyre, Michael Christopher Burnett
  • Patent number: 10690111
    Abstract: The present disclosure is directed to a rotor blade that includes a shell defining an interior cavity. The rotor blade also includes exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge. Each of the pressure side, the suction side, the leading edge, and the trailing edge extends between a tip and a root. The shell defines a span and a chord. A shear web is positioned in the interior cavity and coupled to the shell. The shear web includes a lattice structure.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 23, 2020
    Assignee: General Electric Company
    Inventors: Stephen Bertram Johnson, Anne Parsons Kyriakides
  • Patent number: 10682687
    Abstract: The present disclosure is generally directed to a core configured for the manufacturing of a turbine engine blade by lost-wax casting. The core includes a first convex curved outer face and a second concave curved outer face. The first and second faces have a plurality of recesses, each recess including a spherical portion.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 16, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Coralie Cinthia Guerard, Vincent Marc Herb, Jun Ni, Joseph Toussaint Tami Lizuzu, Matthieu Jean Luc Vollebregt
  • Patent number: 10677216
    Abstract: Wind turbine rotor blade components including pultruded rods and methods of manufacturing the same are disclosed. More specifically, the rotor blade component includes a plurality of pultruded rods housed within an enclosed primary outer casing. The enclosed primary outer casing includes a hollow interior, a root end, and an opposing tip. As such, each of the plurality of pultruded rods is received within the enclosed primary outer casing and secured therein via a first resin material. Further, an arrangement of the plurality of pultruded rods within the primary outer casing and a relationship of a maximum dimension of each of the plurality of pultruded rods and a maximum dimension of the enclosed primary outer casing are configured to maximize flexibility of the rotor blade component.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 9, 2020
    Assignee: General Electric Company
    Inventors: Bensely Albert, Nicholas K. Althoff, Jamie T. Livingston, Stephen Bertram Johnson
  • Patent number: 10668648
    Abstract: A mould for moulding a wind turbine blade or an elongate structural part thereof, the mould comprising a plurality of longitudinal elongate mould sections adapted to be fitted together in an end-to-end relationship to form a unitary mould, each mould section having a central mould portion between opposite end portions, each mould section being composed of a fibre reinforced resin matrix composite material, at least one end portion of each mould section forming an integral flange oriented substantially orthogonally downwardly with respect to an upper surface of the mould section, and the upper surface including a moulding surface and a recess located between the flange and the moulding surface, the recess extending across a transverse width of the mould section whereby when the flanges of adjacent mould sections are fitted together in an abutting relationship, the adjacent recesses form a combined recess separating the moulding surfaces of the adjacent mould sections.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: June 2, 2020
    Assignee: Suzhou Red Maple Wind Blade Mould Co., Ltd.
    Inventors: Yiqiang Fan, Qiang Gao, Junyu Min, Xiudong Ying, Jun Gao, Rongying Wu
  • Patent number: 10669036
    Abstract: A turbofan engine including a core engine and at least one fan by means of which fluid is guided to a primary flow channel for the core engine as well as to a secondary flow channel of the turbofan engine, wherein the secondary flow channel is provided for an outer fluid flow that is guided past the core engine, and at least one splitter fairing arranged inside the secondary flow channel around which the fluid flow is flowing during operation of the turbofan engine, which cases at least one component of the turbofan engine that is guided radially through the secondary flow channel, and which has an end element with a leading edge section that is facing towards the fluid flow and/or a trailing edge section that is positioned in the flow direction of the fluid flow.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 2, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Robert Thies
  • Patent number: 10662920
    Abstract: The invention relates to a rotor blade of a wind power plant having two rotor blade half-shells (1, 21) with in each case a leading-edge periphery and a trailing-edge periphery (8a, 22a), which rotor blade half-shells are adhesively fastened to each other along the leading-edge and trailing-edge peripheries (8a, 22) and which in case have a trailing-edge girder (3, 25), and each of the trailing-edge girders (3, 25) at least in certain sections is of rectangular design in a cross section along its longitudinal extent.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 26, 2020
    Assignee: Senvion GmbH
    Inventors: Urs Bendel, Markus Werner, Julian Ramm, Enno Eyb, Lenz Zeller
  • Patent number: 10648485
    Abstract: An ceiling fan comprising a motor system. The motor system is mounted around a motor shaft. The motor shaft couples to a downrod for suspending the ceiling fan from a structure. The motor shaft and motor are encased by a motor housing. The motor housing comprises hub arms for mounting a plurality of blade holders. The blade holders coupled to a plurality of blades rotatable about the motor during operation. The downrod comprises a wire disk mounting guy wiring to the downrod. A retention rod is utilized internal of the motor and downrod as a secondary retention method. An electrical connector is internal of the motor shaft and electrically couples to the stator to power the motor.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 12, 2020
    Assignee: Hunter Fan Company
    Inventors: Phillip Santolucito, Agustin Chacon
  • Patent number: 10632689
    Abstract: A method of making a wind turbine blade, and the turbine blade resulting form the process, is described in which correct alignment of the shear webs (42a, 42b) upon mould (30) closing is ensured. The method involves providing a first half shell (32a) and a second half shell (32b) to be joined together to form the wind turbine blade. A first edge (46) of a shear web (42) is attached to an inner surface (36a) of the first half shell (32a). A shear web mounting region is defined on an inner surface (36b) of the second half shell (32b). At least one guide block (60a, 60b) is attached to the inner surface (36b) of the second half shell (32b) adjacent to the shear web (42) mounting region. The guide block (60a, 60b) has a guide surface (70) oriented transversely to the inner surface of the second half shell (36b).
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: April 28, 2020
    Assignee: Vestas Wind Systems A/S
    Inventors: Brian Birkemose, Kim Linddal Kristensen
  • Patent number: 10604234
    Abstract: In a first aspect, there is a method for improving a lift to drag ratio of a rotor blade, including providing a blade member having a leading edge and a trailing edge; providing a leading edge extension member; and coupling the leading edge extension member to a portion of the leading edge of the blade member to form the rotor blade. In a second aspect, there is a rotor blade including a blade member having a leading edge, and a trailing edge; and a leading edge extension member disposed on the leading edge of the blade member, wherein the leading edge extension member is configured to extend the chord length of at least a portion of the rotor blade. In a third aspect, there is a leading edge extension member for a rotor blade including a convex exterior surface configured to extend at least a portion of the chord length of the rotor blade.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: March 31, 2020
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Christopher E. Foskey, Brendan P. Lanigan
  • Patent number: 10570879
    Abstract: A joint assembly for a wind turbine rotor blade includes a male structural member extending longitudinally through female structural members configured with a plurality of rotor blade segments. The female structural member includes first bore holes on opposing sides thereof that are aligned in a chord-wise direction. The male structural member includes second bore holes on opposing sides thereof that are aligned with the first bore holes. At least one chord-wise extending gap is defined between an outer side surface of the male structural member and an inner side surface of the female structural member. A chord-wise extending pin extends through the first and second bore holes to join the male and female structural members. At least one flanged bushing is arranged in the first and second bore holes such that a flange of the bushing extends within the chord-wise extending gap.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: February 25, 2020
    Assignee: General Electric Company
    Inventors: Scott Jacob Huth, Donald Joseph Kasperski, Aaron A. Yarbrough, Eric Michael Shain, Jacob Lee Bunch
  • Patent number: 10533534
    Abstract: The present disclosure is directed to a method for bonding composite blade components of a rotor blade of a wind turbine. The method includes providing a first blade component being constructed of a first composite material. The method also includes providing a second blade component being constructed of a second composite material. Further, the method includes arranging the first and second blade components together at an interface. Another step includes placing one or more layers of a wetted composite material between the first and second blade components at the interface. The method also includes allowing the one or more layers of the wetted composite material at the interface to cure.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: January 14, 2020
    Assignee: General Electric Company
    Inventors: Aaron A. Yarbrough, Christopher Daniel Caruso
  • Patent number: 10520804
    Abstract: A portable radiographic imaging apparatus includes a sensor and a case that houses sensor panel. Radiation detector elements are arrayed two-dimensionally in the sensor panel. The case comprises a corner where two side walls are adjacent. The side walls are made of a continuous fiber reinforced resin that comprises one or more fiber layers oriented in a predetermined direction. The fiber layers are oriented in a direction from one to the other of the adjacent side walls in the corner. A breakpoint where the fiber layers are discontinuous over an entire thickness in a wall thickness direction is not present in an area of at least one of the corners.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 31, 2019
    Assignee: Konica Minolta, Inc.
    Inventor: Kohei Miyoshi
  • Patent number: 10519928
    Abstract: A rotor blade for a wind turbine includes an upper shell member having a spar cap configured on an internal face thereof, a lower shell member having a spar cap configured on an internal face thereof, and a shear web assembly extending between the spar caps along a longitudinal length of the rotor blade. The shear web assembly includes, at least, a first shear web and a second shear web. The first shear web starts at a blade root of the rotor blade and extends to an intermediate span location. The second shear web overlaps the first shear web at the intermediate span location and extends towards a blade tip of the rotor blade so as to provide increase torsional rigidity to the rotor blade.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: December 31, 2019
    Assignee: General Electric Company
    Inventor: Aaron A. Yarbrough
  • Patent number: 10450870
    Abstract: An airfoil for an aircraft engine is provided. The airfoil may include a plurality of composite plies extending in a chordwise direction from a leading edge to a trailing edge and in a spanwise direction between an airfoil tip and an airfoil base. The airfoil may include at least one discontinuous ply having a first ply segment, a second ply segment, and a butt joint disposed between the first ply segment and the second ply segment. The butt joint may be disposed along a first fragment profile to frangibly attach the first and second ply segments.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: October 22, 2019
    Assignee: General Electric Company
    Inventors: Phani Nandula, Suresh Subramanian, Nicholas Joseph Kray, Gregory Carl Gemeinhardt
  • Patent number: 10436033
    Abstract: A fan system includes a motor, a rotatable hub, and a plurality of fan blades. Each of the fan blades includes a substantially rigid spine member, a resilient leading edge member, and a resilient trailing edge member. The leading edge member and trailing edge members are removably coupled with the spine member, such that different leading edge members and different trailing edge members may be chosen to customize the leading and trailing edges of the fan blades. Each fan blade may have more than one type of leading edge member or more than one type of trailing edge member. The leading edge member and trailing edge member may each be coupled with the spine member by urging the leading edge member and trailing edge member in a direction that is substantially perpendicular to the longitudinal axis defined by the spine member.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: October 8, 2019
    Assignee: Delta T, LLC
    Inventors: J. Carey Smith, Richard W. Fizer, Richard M. Aynsley, Richard A. Oleson
  • Patent number: 10428790
    Abstract: A method of making an elongate wind turbine blade is described. The wind turbine blade extends longitudinally between a root end and a tip end in a spanwise direction, and the method comprises: (a) providing an elongate mould tool (20) extending longitudinally in a spanwise direction; (b) arranging an elongate spar structure (40) in the mould tool, the spar structure (40) N extending longitudinally in the spanwise direction; (c) arranging core material (24) adjacent to the spar structure (40); (d) providing resin-permeable material (114) between the spar structure (40) and the core material (24); and (e) administering resin into the mould during a resin infusion process. The resin-permeable material (114) restricts the flow of resin between the spar structure (40) and the core material (24) in the spanwise direction and thereby substantially prevents lock-offs from forming during the infusion process.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: October 1, 2019
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonathan Smith
  • Patent number: 10422316
    Abstract: The present disclosure is directed to a rotor blade component for a wind turbine. The rotor blade component includes a plurality of pre-cured members arranged in one or more layers. Each of the pre-cured members is constructed of a plurality of fiber materials cured together via a resin material having a first stiffness and at least additional material having a second stiffness. Further, the second stiffness is lower than the first stiffness. As such, the additional low-stiffness material is cured within the resin material so as to increase flexibility of the pre-cured members.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: September 24, 2019
    Assignee: General Electric Company
    Inventors: Aaron A. Yarbrough, Christopher Daniel Caruso
  • Patent number: 10393090
    Abstract: Provided is a blade for a wind power generator comprising: a main spar including: an upper main spar flange and a lower main spar flange whose both ends are protruded towards the front and rear side respectively; a front main spar web and a rear main spar web which are connecting the upper main spar flange and the lower main spar flange; a first body, located in the front side of the main spar, including an inverted D-type rib; and a second body, located in the rear side of the main spar, including a curved rib. The inverted D-type rib includes: a vertical frame; and a block frame extendedly formed from the upper side and the lower side of the vertical frame respectively and convexly formed towards the front side.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: August 27, 2019
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION OF KOREA AEROSPACE UNIVERSITY
    Inventors: Jae-Sung Bae, Soo-Yong Lee, Dong-Guk Choi
  • Patent number: 10329925
    Abstract: A turbine engine component (100) comprises a fiber structure (125, 126) forming at least a portion of an airfoil (102). A matrix (128) embeds the fiber structure. A carbon nanotube filler (130) is in the matrix.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: June 25, 2019
    Assignee: United Technologies Corporation
    Inventors: Sreenivasa R. Voleti, Christopher M. Quinn
  • Patent number: 10273937
    Abstract: A composite member comprises first and second elongate composite elements. Each has a wedge shaped end with a complimentary tapered end surface. At least one of the components is formed of a stack of fiber layers impregnated in resin, with the tapered end surface being formed by each fiber layer extending longitudinally progressively further than the adjacent layer towards the thin end of the wedge at which the fiber layers have the greatest longitudinal extent. The components are joined at their tapered ends by an adhesive, and the properties of the cured composite material of the at least one component and/or the properties of the adhesive are different in the vicinity of the thin end of the wedge as compared to the rest of the tapered surface in order to reduce the stress concentrations in this region.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 30, 2019
    Assignee: BLADE DYNAMICS LIMITED
    Inventors: Paul Trevor Hayden, Harald Behmer
  • Patent number: RE48538
    Abstract: A ceiling fan includes blade (11) that is integrally formed of root (12), vane (13), and step (14) for maintaining vane (13) in a state inclined from horizontal. Blade (11) includes bend (16) on upstream side (11c), first reinforcement (17) on upstream downstream side (11c) (11b), and a plurality of second reinforcements (18) between bend (16) and first reinforcement (17). First reinforcement length (17a) is longer than second reinforcement length (18a). Further, the ceiling fan includes blade drop prevention portion (37) for locking blade (11) to support (10).
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: April 27, 2021
    Assignee: Panasonic Intellectual Property Mangement Co., Ltd.
    Inventors: Hiroyuki Kuramochi, Hironari Ogata, Daiki Sakito