Patents Examined by Ninh H. Nguyen
  • Patent number: 11280202
    Abstract: A rotor blade for a gas turbine engine including an inner ply layer group includes a flared region and an airfoil region, a neck region between the flared region and the airfoil region; and a platform shell that comprises a platform shell root region, a platform shell platform region, and a platform shell neck region between the platform shell root region and the platform shell platform region, the platform shell root region sheathes the flared region, and the platform shell neck region flares outwardly away from the neck region to intersect the platform shell platform region at a platform shell neck region perimeter around an airfoil opening perimeter.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: March 22, 2022
    Assignee: Raytheon Technologies Corporation
    Inventor: Michael G. McCaffrey
  • Patent number: 11274678
    Abstract: A centrifugal blower includes a fan including a main plate having a disk-shape, and a plurality of blades, and a scroll casing configured to accommodate the fan. The scroll casing includes a discharge portion and a scroll portion including a side wall, a circumferential wall, and a tongue portion. The circumferential wall includes a curved circumferential wall and a flat circumferential wall. In comparison with a centrifugal blower including a standard circumferential wall having a logarithmic spiral shape in cross-section perpendicular to a rotational shaft of the fan, in the curved circumferential wall, at a first end being a boundary between the circumferential wall and the tongue portion and at a second end being a boundary between the circumferential wall and the discharge portion, a distance L1 between an axis of the rotational shaft and the circumferential wall is equal to a distance L2 between the axis of the rotational shaft and the standard circumferential wall.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: March 15, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takuya Teramoto, Ryo Horie, Takahiro Yamatani, Kazuya Michikami, Hiroshi Tsutsumi, Hiroyasu Hayashi
  • Patent number: 11268532
    Abstract: An electric blower includes a motor including a rotor having a rotation shaft, and a stator provided to surround the rotor, a moving blade mounted at one end side of the rotation shaft in the axial direction of the rotation shaft, a bearing portion provided between the moving blade and the stator in the axial direction and rotatably supporting the rotation shaft, and a frame. The frame includes a motor housing portion housing the stator, a bearing housing portion housing the bearing portion, a wall formed between the motor housing portion and the bearing housing portion and facing the moving blade, and a hole passing through the wall. The electric blower further includes a first air path outside the frame, and a second air path inside the frame. An air volume in the first air path is larger than an air volume in the second air path.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: March 8, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuchika Tsuchida, Naho Adachi, Masaya Teramoto, Mitsumasa Hamazaki, Kazunori Hatakeyama
  • Patent number: 11266863
    Abstract: This invention relates in general to a device for controlling the flow of a fluid. The device having a plurality of motor assemblies mounted at equidistant points around a mounting collar. An elongated annular outer casing surrounds and is spaced outwardly from the motor assemblies and defines with the motor assemblies an annular air passage. The outer casing having a central longitudinal axis, an open forward end for receiving ambient air and an open rear end for discharging air forced fluid. The device has a supporting structure on which the outer casing is mounted and a fluid flow assembly. A turntable is coupled to the supporting structure for rotation and an actuating assembly is used for raising and lowering the outer casing, wherein the actuating assembly is coupled between the supporting structure and outer surface of the outer casing.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: March 8, 2022
    Assignee: Precise Action Plus Pty Ltd
    Inventor: Geoffrey Rol
  • Patent number: 11268535
    Abstract: A fan module includes a hub, a first body and a second body. The hub is configured to rotate along a central axis. The first body is connected to an outer wall of the hub. The second body is sleeved on the outer wall of the hub. The second body includes a plurality of ribs. The ribs are disposed on an inner wall of the second body and abut against the outer wall of the hub.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 8, 2022
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Hsin-Chen Lin, Ing-Jer Chiou
  • Patent number: 11261872
    Abstract: The present disclosure describes modular fan unit systems and assemblies. A modular fan unit system assembly may include a mounting structure; and a modular fan unit system.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 1, 2022
    Assignee: CommScope Technologies LLC
    Inventor: Richard John Smailes
  • Patent number: 11261739
    Abstract: An airfoil for a gas turbine engine according to an example of the present disclosure includes a first cavity, a second cavity, and a rib extending from a suction sidewall to a pressure sidewall and separating the first cavity from the second cavity. The rib includes a central portion, a first edge portion extending from the pressure sidewall to the central portion, and a second edge portion extending from the suction sidewall to the central portion. The rib defines one or more communication openings from the first cavity to the second cavity in the first or second edge portion.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: March 1, 2022
    Assignee: Raytheon Technologies Corporation
    Inventor: Nicholas M. LoRicco
  • Patent number: 11261871
    Abstract: A dual stage blower assembly includes a first fan configured to rotate about the rotational axis and including a first plurality blades. The first plurality of blades include a plurality of backward curved blades. The dual stage blower assembly also includes a second fan circumscribing the first fan and configured to rotate about the rotational axis. The second fan includes a second plurality of blades, wherein the second plurality of blades include one of a plurality of forward curved blades, a plurality of a radial blades, or a plurality of backward curved blades. At least one motor is coupled to the first fan and the second fan and configured to rotate the first fan and the second fan about the rotational axis.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 1, 2022
    Assignee: REGAL BELOIT AMERICA, INC.
    Inventors: Sahand Pirouzpanah, Joseph A. Henry
  • Patent number: 11255332
    Abstract: A modular fan housing configured to hold an array of motors and fans is provided. The modular fan housing is configured for use in an air-handling system that delivers air to a ventilation system for at least a portion of a building. The fan housing comprises a plurality of modular units configured to be stacked adjacent to one another in at least one row or column to form an array. The modular units each include an interior surface and have a front end and a back end that define a chamber. The chambers are configured to receive the motors and fans. Sound attenuation layers extend along at least a portion of the interior surface of the corresponding chambers. The sound attenuation layers are positioned between at least some of the adjacent chambers.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: February 22, 2022
    Assignee: Nortek Air Solutions, LLC
    Inventor: Lawrence G. Hopkins
  • Patent number: 11255346
    Abstract: A fan (radial or axial fan), with an impeller and with a preguide device in the flow path in front of the impeller, preferably in front of the inlet region of an inlet nozzle, has the preguide device as a preguide grid with webs and/or guide vanes which are arranged and shaped such that flow influencing in the circumferential direction occurs for a substantially swirl-free inflow.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: February 22, 2022
    Assignee: ZIEHL-ABEGG SE
    Inventor: Frieder Loercher
  • Patent number: 11255341
    Abstract: A centrifugal fan impeller structure includes a hub and multiple blades extending from an outer circumference of the hub. Each blade has a fixed end, a free end, an upper end face, a lower end face, a front end face and a rear end face. The front and rear end faces define therebetween a thickness. The thickness ranges from 0.05 mm to 0.15 mm. The are two inclinations between the upper and lower end faces of the blade, whereby the thickness of the blade is minified to increase the number of the blades. By means of the inclinations, the blades are not subject to breakage in the demolding process.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: February 22, 2022
    Assignee: Asia Vital Components Co., Ltd.
    Inventor: Min-Sheng Cheng
  • Patent number: 11255311
    Abstract: A rotor rotation control system for a wind turbine and a control method thereof are provided. The control system includes a rotation unit configured to drive a rotor of the wind turbine to rotate relative to an engine base of the wind turbine, a driving unit configured to drive the rotation unit, and a processor configured to determine a bending moment load switching position on a rotating shaft of the rotor, and output an adjustment instruction to the driving unit based on the bending moment load switching position.
    Type: Grant
    Filed: April 8, 2018
    Date of Patent: February 22, 2022
    Assignee: JIANGSU GOLDWIND SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Hongfeng Li, Yong Yang, Jing Fang, Endi Zhai, Xingang Zhang, Ye Li
  • Patent number: 11255338
    Abstract: A turbomachine includes a casing having an inlet end opposite an outlet end along a longitudinal axis of the casing; a shaft assembly provided within the casing, the shaft assembly extending from the inlet end to the outlet end; a plurality of rotating impellers extending radially outward from the shaft assembly; and a communication channel defined between two adjacent impellers to permit a backflow of fluid from a diffuser channel of a downstream impeller to a return channel of an adjacent upstream impeller.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 22, 2022
    Assignee: Elliott Company
    Inventors: Klaus Brun, Vishal Jariwala
  • Patent number: 11248629
    Abstract: A centrifugal compressor includes: an impeller (compressor impeller); a main flow passage, which has the impeller arranged therein, and extends in a rotation axis direction of the impeller; an auxiliary flow passage formed on a radially outer side of the impeller with respect to the main flow passage; an upstream communication passage configured to allow the auxiliary flow passage and the main flow passage to communicate to each other; a downstream communication passage configured to allow the auxiliary flow passage and the main flow passage to communicate to each other on a side closer to the impeller with respect to the upstream communication passage; and a partition portion (rib or fin) configured to partition the auxiliary passage in a circumferential direction while maintaining a gap larger than a flow passage width of the downstream communication passage in the auxiliary flow passage.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: February 15, 2022
    Assignee: IHI Corporation
    Inventor: Takahiro Ueno
  • Patent number: 11248612
    Abstract: A centrifugal compressor includes a motor that rotates a rotary shaft of a compressor impeller, a motor housing that houses the motor, a compressor housing that houses the compressor impeller and includes an intake port and a discharge port, an gas bleed port that is provided closer to the discharge port than the compressor impeller in a flow direction in the compressor housing, a cooling gas line which is connected to the gas bleed port and through which a part of compressed gas compressed by the compressor impeller passes, a cooling liquid line of which at least a part is provided in the motor housing and through which cooling liquid of which the temperature is lower than the temperature of the compressed gas passes, and a heat exchanger that is disposed on the cooling gas line and the cooling liquid line.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: February 15, 2022
    Inventors: Koji Sakota, Nobuyuki Ikeya, Hideumi Ohkuma, Naomi Sawachika
  • Patent number: 11242862
    Abstract: A blower device includes a rotor rotatable about a central axis extending in a vertical direction, an impeller attached to the rotor, and an annular ring centered on the central axis. The rotor includes a rotor cylindrical portion that extends in the axial direction and a flange that extends radially outward from the rotor cylindrical portion. The impeller includes an annular impeller base centered on the central axis. The ring is connected to the impeller base in the axial direction. The flange is held between the impeller base and the ring in the axial direction.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: February 8, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Yukinobu Shiraishi, Takashi Uchino
  • Patent number: 11242858
    Abstract: A rotary device includes: a housing; an impeller disposed in the housing; a rotor disposed in the housing and configured to drive the impeller; and a labyrinth seal disposed between the impeller and the rotor in the housing and configured to control an amount of air injected through the impeller to cool the rotor. A flow path opening that penetrates through the rotor is formed inside the rotor along a rotational axis of the rotor and the labyrinth seal comprises a teeth portion having a predetermined number of steps provided in the labyrinth seal.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: February 8, 2022
    Assignee: HANWHA POWERSYSTEMS CO., LTD
    Inventor: Jin Seok Hwang
  • Patent number: 11235889
    Abstract: A system for warning an open state of a two-part fan cowl of an aeronautical structure, wherein the system includes at least one device arranged between these two parts of the fan cowl and adapted to exert force spacing them apart from each other, thus leaving a predefined gap between them at their lower ends when that two-part fan cowl is in the open state.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: February 1, 2022
    Assignee: AIRBUS DEFENCE AND SPACE, S.A.U.
    Inventors: Francisco José Benítez Guerrero, Yolanda Marcos Martín
  • Patent number: 11235138
    Abstract: A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: February 1, 2022
    Assignee: PROCYRION, INC.
    Inventors: Sascha Gross-Hardt, Tim Kaufmann, William L. Clifton, Benjamin A. Hertzog, Jason J. Heuring
  • Patent number: 11236759
    Abstract: Contoured fan blades and associated systems and methods are disclosed herein. A representative embodiment includes a hub and multiple curved fan blades circumferentially arranged around, and coupled to, the hub. Individual fan blades can have a tip, a first curved edge, and a second curved edge. The first and second curved edges extend over at least part of the length between the hub to the tip of the fan blade. The fan blade is formed with multiple upper channels and multiple lower channels. The multiple upper and lower channels extend from the first curved edge to the second curved edge.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: February 1, 2022
    Assignee: Legend Brands, Inc.
    Inventor: Alexander John Uffelman