Patents Examined by Ninh H. Nguyen
  • Patent number: 9890791
    Abstract: A ventilation assembly, particularly for a vehicle, has a cowl with a conduit for air flow. The conduit has a first portion and a second portion having a smaller diameter and a joining portion joining the first and second portions. A fan is disposed in the conduit. The fan has an impeller with a peripheral ring having a lip. An annular passage is formed between the ring and the conduit. The lip has a substantially frusto-conical shape; and the joining portion of the conduit has a substantially frusto-conical shape, with an inclination angle (?) at least approximately corresponding to that of the lip of the impeller. The inclination angle (?) is between 115° and 145°.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: February 13, 2018
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Piergiorgio Innocenti
  • Patent number: 9890704
    Abstract: In a gas turbine engine, the booster compressor is driven by both the low pressure or fan shaft and high pressure shaft through a differential gear arrangement. The rotational speed of the booster compressor is intermediate between the speed of the fan and the speed of the high pressure compressor.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: February 13, 2018
    Assignee: Derwent Aviation Consulting Ltd.
    Inventors: Trevor H. Speak, Robert J. Sellick
  • Patent number: 9890787
    Abstract: A centrifugal compressor for processing a wet gas. The centrifugal compressor includes: a casing; and least one compressor stage comprising at least one impeller rotatingly arranged in the casing and provided with an impeller hub and a plurality of impeller blades, each impeller blade having a suction side and a pressure side. The at least one compressor stage comprises at least one droplet breaking arrangement configured for promoting breakup of liquid droplets flowing through the compressor stage.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: February 13, 2018
    Assignee: Nuovo Pignone Srl
    Inventors: Matteo Bertoneri, Massimo Camatti, Manuele Bigi, Luigi Podesta
  • Patent number: 9885245
    Abstract: Turbine nozzles and cooling systems for cooling slip joints therein are provided. The turbine nozzle has an endwall, a vane coupled to the endwall, a slip joint, and a plurality of airfoil quenching holes that cooperate with a plurality of endwall cooling holes. The vane comprises a leading edge and a trailing edge interconnected by a pressure sidewall and a suction sidewall and an end portion. The slip joint is between the end portion and the endwall. The airfoil quenching holes are defined through the pressure sidewall in the end portion. The endwall cooling holes are defined through the endwall along the pressure sidewall and in proximity to the leading edge. The airfoil quenching holes and endwall cooling holes are disposed adjacent the slip joint.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: February 6, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Lorenzo Crosatti, Ardeshir Riahi, Bradley Reed Tucker, Shezan Kanjiyani
  • Patent number: 9885384
    Abstract: An object is to provide a floating bush bearing device with excellent oscillation stability and small bearing loss. A floating bush bearing device which rotatably supports a rotation shaft includes: a bearing housing, a floating bush rotatably disposed between the rotation shaft and an inner circumferential surface of the bearing housing, in the bearing housing, and a bush side oil supply hole which is formed through the floating bush and is capable of supplying lubricating oil between the rotation shaft and the inner circumferential surface of the floating bush, the inner circumferential surface of the floating bush has a non-circular shape so that a gap portion is formed between the rotation shaft and the inner circumferential surface of the floating bush, the gap portion having a predetermined clearance or larger regardless of relative positions of the rotation shaft and the inner circumferential surface of the floating bush, and the bush side oil supply hole communicates with the gap portion.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: February 6, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaya Futae, Hiroshi Kanki, Noriyuki Hayashi, Hideaki Nishida, Shinji Ogawa, Chiaki Yasuda, Yutaka Ozawa
  • Patent number: 9885364
    Abstract: A fan includes a plurality of blade portions arranged spaced apart from each other in a circumferential direction, each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of the pressure surface. The plurality of blade portions include a first blade portion and a second blade portion different from each other in at least one of an outer peripheral blade tip angle and an inner peripheral blade tip angle, and are provided such that a discrepancy angle is equal among a plurality of the blade portion.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: February 6, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yukishige Shiraichi, Masaki Ohtsuka
  • Patent number: 9879680
    Abstract: A multi-stage centrifugal pump assembly includes at least two impellers (2, 6) and two impeller groups (4, 8) which are consecutive in a flow direction and each with at least one impeller (2, 6). A backflow channel (24) connects an exit side of the first impeller group (4) to an entry side thereof is located in a first impeller group (4) of the two impeller groups (4, 8).
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 30, 2018
    Assignee: Grundfos Management a/s
    Inventors: Steen Mikkelsen, Aage Bruhn, Bo Møller Jensen
  • Patent number: 9879548
    Abstract: A damper system for a turbine having adjacent turbine bucket platforms including opposing slash faces having opposing grooves is provided. The system includes a pin having a substantially cylindrical-shaped body configured for positioning in the opposing grooves. A set of slots are provided in an outer surface of the pin and at spaced axial locations therealong. The set of slots face in a radially outward direction relative to the turbine bucket platforms.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: January 30, 2018
    Assignee: General Electric Company
    Inventors: Srikeerthi Annaluri, Thangaraj Subbareddyar
  • Patent number: 9874105
    Abstract: The present disclosure includes active clearance control systems including improved cooling manifolds. Such improved manifolds may utilize multiple cooling zones to provide varied levels of cooling to an engine case.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: January 23, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Craig M. Callaghan
  • Patent number: 9874229
    Abstract: In some implementations, cooling fans can be mounted in a server chassis using a multi-level vibration dampening mechanism to reduce the transmission of fan vibrations to the server chassis. For example, a plurality of cooling fans can be housed within a plurality of fan cages. The plurality of fan cages can be mounted to a cooling fan tray. The cooling fan tray can be mounted to the chassis. For example, the mountings used to attach the fan cages to the tray and the tray to the chassis can include resilient vibration dampers. Thus, the vibrations generated by the cooling fans can be more effectively reduced and operation of vibration sensitive server components can be improved.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 23, 2018
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chao-Jung Chen, Ming-Sheng Chang, Chi-Fu Chen
  • Patent number: 9874106
    Abstract: A number of variations may include a product comprising: a vane lever comprising a first end, a second end, a top surface, and a bottom surface; an opening which extends through the second end and which is defined by an inner surface, and wherein a perimeter of the inner surface comprises a plurality of vertical flutes which extend a length of the inner surface and which are constructed and arranged to displace a material of a vane shaft.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: January 23, 2018
    Assignee: BorgWarner Inc.
    Inventors: Matthew King, Elias Morgan, Greg Williams
  • Patent number: 9869324
    Abstract: A fan includes a plurality of blade portions arranged spaced apart from each other in a circumferential direction, each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of said pressure surface. The plurality of the blade portions include a first blade portion and a second blade portion in which when they are rotated around the rotation axis of the fan and overlapped on one blade portion, one of an inner edge portion and an outer edge portion is disposed to be coincident with each other, and the other of the inner edge portion and the outer edge portion is disposed to be displaced from each other.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 16, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yukishige Shiraichi, Masaki Ohtsuka
  • Patent number: 9869352
    Abstract: A one-way clutch includes: a plurality of engaging elements which restrict relative rotation toward the other side of a circumferential direction by engagement with an inner ring outer circumferential surface and an outer ring inner circumferential surface and which allows the relative rotation along the other side of the circumferential direction by releasing the engagement; and a ring-shaped cage which holds the engaging elements. In a clutch unit, a positioning member which is capable of contact a side surface of the cage in an axial direction and which positions the cage along the axial direction is provided between the one-way clutch and a rolling bearing.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: January 16, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Hideki Fujiwara, Kazushige Ootsuka
  • Patent number: 9862460
    Abstract: Disclosed are a propulsion system for a ship, a method of assembling the same, and a method of disassembling the same. The propulsion system for the ship includes: a rear propeller fixed to a rotary shaft; a front propeller that is rotatably supported on the rotary shaft in front of the rear propeller; a contra-rotating device that is mounted in an installation space at a rear end of a hull so as to reverse the rotation of the rotary shaft and transmit the reversed rotation to the front propeller; a propeller connecting member that connects the contra-rotating device and the front propeller to transmit a rotational force; and a thrust supporting device that is provided between the contra-rotating device and the propeller connection member to support thrust of the front propeller.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG HEAVY IND. CO., LTD.
    Inventors: Kwang-Jun Paik, Hyun-Sang Park, Jin-Suk Lee, Tae-Goo Lee, Ji-Nam Kim, Jin-Ho Kim, Jae-Ouk Roh, Tae-Sam Choi, Kwang-Kun Park, Hyoung-Gil Park, Chi-Su Song, Se-Myun Oh, Dong-Hyun Lee, Jeung-Hoon Lee, Jae-Kwon Jung, Tae-Sik Lee
  • Patent number: 9856742
    Abstract: In various embodiments, a nacelle may comprise a cowl, an inner panel, a VAFN panel and an overhang. The cowl may define a first portion of an outer surface of the nacelle. The inner panel may be disposed radially inward of the cowl. The VAFN panel may be disposed radially inward of the cowl. The overhang may be attached to the inner panel. The overhang may be positioned radially inward of the leading edge of the VAFN panel.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: January 2, 2018
    Assignee: ROHR, INC.
    Inventors: Iman Bahadoran, Jared Cox
  • Patent number: 9850819
    Abstract: A gas turbine engine comprises a main compressor section having a downstream most end, and more upstream locations. A turbine section has a high pressure turbine. A tap taps air from at least one of the more upstream locations in the compressor section, passes the tapped air through a heat exchanger and then to a cooling compressor. The cooling compressor compresses ng air downstream of the heat exchanger, and delivers air into the high pressure turbine. The heat exchanger has at least two passes, with one of the passes passing air radially outwardly, and a second of the passes returning the air radially inwardly to the compressor. An intercooling system for a gas turbine engine is also disclosed.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: December 26, 2017
    Assignee: United Technologies Corporation
    Inventors: Gabriel L. Suciu, Jesse M. Chandler, Joseph Brent Staubach, Brian D. Merry, Wesley K. Lord
  • Patent number: 9849411
    Abstract: A scavenge filter system according to an exemplary aspect of the present disclosure includes, among other things, a first scavenge pump stage positioned in a first flow path downstream of a first bearing compartment of a spool and a second scavenge pump stage positioned in a second flow path downstream of a second bearing compartment. The second bearing compartment houses a geared architecture mechanically coupled to the spool. A first scavenge filter fluidly couples the first scavenge pump stage to at least one oil reservoir. A second scavenge filter fluidly couples the second scavenge pump stage to the at least one oil reservoir. The first and second scavenge filters are separate and distinct. A method of filtering debris is also disclosed.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: December 26, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: William G. Sheridan
  • Patent number: 9845145
    Abstract: A method and control system for an aircraft engine comprising a gas turbine driving a fan propeller with a mechanical gear-train and a dedicated pitch change mechanism for the fan propeller includes a fuel flow signal input; a pitch change mechanism signal input; a controlled plant for relating a pitch change mechanism pitch angle (BetaP) and a fuel flow (Wf) to at least two controlled outputs and a set of constraints. A decoupling control decoupling the controlled plant and/or the constraints into two separate single-input single-output (SISO) control loops for the first and second controlled outputs and a decoupling control decoupling the constraints from the decoupled controlled outputs and the constraints from one another provide gas turbine and fan propeller coordinate control while coordinately controlling constraints and outputs. A feedforward control can compensate the load change effect on engine speed and fan propeller rotor speed control.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: December 19, 2017
    Assignee: General Electric Company
    Inventors: Manxue Lu, R. Sheldon Carpenter
  • 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: 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