Patents Assigned to Mitsubishi Heavy Industries, Ltd.
  • Patent number: 11021959
    Abstract: A radial inflow turbine includes a turbine wheel having a blade, in which a hub-side end of a leading edge of the blade is located radially inward relative to a shroud-side end of the leading edge, and a housing having a scroll part and a bend part deflecting a flow of a working fluid flowing radially inward from the scroll part, along an axial direction. The turbine wheel has at least one through hole bypassing the blade.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 1, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Ryo Takata
  • Patent number: 11022314
    Abstract: An injector includes: an upstream support plate into which a fuel gas is to be introduced and which has a shape of a tapered cylinder with a diameter which enlarges; a downstream support plate that defines a plenum at an inner side along with the upstream support plate; and premixing tubes, each of which is supported by the upstream support plate and the downstream support plate and is configured to introduce air. The premixing tubes are disposed in circular rows at equal intervals in a circumferential direction, and portions of the premixing tubes which are located in the plenum include fuel introducing holes.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 1, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ryo Yoshino, Keijiro Saito
  • Patent number: 11022003
    Abstract: A steam turbine exhaust chamber defining therein an exhaust passage through which steam having passed through a last-stage blade of a steam turbine is introduced to a condenser includes: a casing including an outer peripheral wall portion formed on an outer peripheral side of the exhaust passage; a bearing cone disposed on a radially inner side of the outer peripheral wall portion; and at least one bypass passage carrying a part of steam flowing through the exhaust passage from a high-pressure portion of the exhaust passage to a low-pressure portion of the exhaust passage or to the condenser, The at least one bypass passage includes a high-pressure-side opening formed in the bearing cone and a low-pressure-side opening facing steam having a lower pressure than steam facing the high-pressure-side opening.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: June 1, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Toyoharu Nishikawa, Hideaki Sugishita, Kazuyuki Matsumoto, Yoshihiro Kuwamura, Kei Nakanishi
  • Publication number: 20210158979
    Abstract: A pit gate includes a gate body which is inserted between a pool portion storing water and a canal portion connected to the pool portion and is configured to change a flow state of the water, and a seal portion (6) which is accommodated in a groove-shaped accommodation recess formed in the gate body and seals between the pool portion and the gate body. The seal portion (6) includes a low-rigidity portion (10) which is relatively easily deformed by a load according to a water pressure from the pool portion side, and a high-rigidity portion (11) which is provided on the pool portion side of the low-rigidity portion and is not easily deformed relatively by the load.
    Type: Application
    Filed: September 21, 2018
    Publication date: May 27, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hiromu Okamoto, Hisanori Watanabe, Hidetaka Kafuku, Shunsuke Tanaka, Hiroki Mitsui, Yasuharu Suda, Takao Ito, Hayao Kurono, Shuhei Dobara, Takumi Hori
  • Patent number: 11015235
    Abstract: A method for producing an aluminum alloy member includes an extrusion step for subjecting an aluminum (Al) alloy which contains from 1.6% by mass to 2.6% by mass (inclusive) of magnesium (Mg), from 6.0% by mass to 7.0% by mass (inclusive) of zinc (Zn), 0.5% by mass or less of copper (Cu), from 0.01% by mass to 0.05% by mass (inclusive) of titanium (Ti) with the balance made up of aluminum (Al) and unavoidable impurities to hot extrusion. The method further includes a cooling step for cooling the aluminum alloy after the extrusion. The method further includes a strain processing step for introducing strain that miniaturizes precipitates precipitated in the crystal grains of the aluminum alloy after the cooling. The method further includes an aging step for aging the aluminum alloy by heating.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 25, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Akiko Inoue, Takayuki Takahashi, Hiroaki Sato
  • Patent number: 11015599
    Abstract: A co-rotating scroll compressor includes a driving-side scroll member (7), a driven-side scroll member (9), a pin ring mechanism (15), a driving-side bearing (11) that rotatably supports the driving-side scroll member (7), and a driven-side bearing (13) that rotatably supports the driven-side scroll member (9). A center of gravity of at least one of the driving shaft (6), the driving-side scroll member (7), and the driven-side scroll member (9) is shifted from rotation centers (CL1, CL2) by a predetermined distance. The predetermined distance is set so that a total bearing load obtained by centrifugal force and fluid compression that is 5% of a dynamic load rating of the driving-side bearing (11) and the driven-side bearing (13) or more is generated.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 25, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takuma Yamashita, Takahide Ito, Makoto Takeuchi, Keita Kitaguchi, Hirofumi Hirata
  • Patent number: 11015518
    Abstract: A variable nozzle device includes: a first plate-shaped member having a first plate portion having an annular shape and being fixed to a bearing housing; a second plate-shaped member having a second plate portion which has an annular shape and which defines a nozzle flow passage between the first plate portion and the second plate portion, the second plate portion having a surface disposed so as to face the first plate portion and another surface disposed so as to face at least partially a scroll flow passage formed inside a turbine housing; at least one nozzle support having, with respect to an axial direction of the nozzle support, an end coupled to the first plate portion and another end coupled to the second plate portion; at least one nozzle vane rotatably supported between the first plate portion and the second plate portion; and a variable nozzle mechanism configured to change a vane angle of the at least one nozzle vane.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 25, 2021
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Keigo Sakamoto, Shigeyoshi Sakuma, Eigo Katou, Yosuke Dammoto, Yoji Akiyama, Nariaki Seike, Hiroyuki Arimizu
  • Patent number: 11015569
    Abstract: A vortex generator for a wind turbine blade to be mounted to a wind turbine blade includes: a platform portion to be mounted to a surface of the wind turbine blade; and at least one fin disposed upright on the platform portion. The platform portion has a cross section having a curved convex shape, at least along a blade spanwise direction of the wind turbine blade.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 25, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Koji Fukami
  • Patent number: 11014640
    Abstract: A floating structure installation system includes, on a body capable of traveling on water, a first cradle including a first holding part capable of holding a first portion having a submersible section to be located under the water surface during installation, and a second cradle including a second holding part capable of holding a second portion connectable to the first portion. At least one of the first cradle or the second cradle is movable on the body to connect the first portion held by the first holding part and the second portion held by the second holding part. The first holding part includes a first lifting unit for lifting and lowering the first portion.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: May 25, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Kei Sato
  • Patent number: 11015607
    Abstract: A motor pump includes a shaft rotatable around an axis, a driving section including a rotor core integrally fixed to an outer circumference of the shaft and a stator surrounding an outer circumference of the rotor core, a compression section configured to compress a working fluid, a casing surrounding the shaft, the driving section, and the compression section, a partition radially partitioning an inside of the casing into a first space in which the stator is disposed and a second space in which the rotor core is disposed, a first connection path connecting the first space to a first portion of the compression section, and a second connection path connecting the second space to a second portion of the compression section in which a pressure of the working fluid is higher than that of the first portion.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: May 25, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Junichi Suematsu, Takeshi Sano
  • Patent number: 11014172
    Abstract: Provided is a drill that can drill with good accuracy without over-processing during deburring. The drill includes: a drill main body that is rotated around a central axis; a main cutting edge provided at a leading end of the drill main body; and a deburring cutting edge that is provided on a base end side of the drill main body, adjacent to the main cutting edge, and performs deburring. The deburring cutting edge is similar in diameter to the main cutting edge and has an angle (?) smaller than an angle (?) formed by the main cutting edge relative to the central axis.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 25, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Shuichi Okada
  • Publication number: 20210147050
    Abstract: An underwater acoustic deception system deceives a sensor installed on a threat existing in or on water by acoustic effect in order to protect ships from the threat. The underwater acoustic deception system is provided with a control device, a laser oscillator and emission optical system. The control device determines a focusing position to focus a laser beam (50) in water in order to generate bubbles (70) at a desired position with a desired scale and emission parameters of the laser beam (50). The laser oscillator generates the laser beam (50) configured to focus in water and generate bubbles. The emission optical system emits the generated laser beam (50) to the focusing position. The underwater acoustic deception system deceives an arbitrary sensor existing in the water by acoustic effect of the bubbles (70) on the surroundings.
    Type: Application
    Filed: October 1, 2018
    Publication date: May 20, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shingo NISHIKATA, Koichi HAMAMOTO, Atsushi OCHIAI
  • Publication number: 20210151209
    Abstract: A supporting force inspection device for inspecting a supporting force of a vibration suppression member interposed between bend portions of a plurality of heat transfer tubes of a steam generator includes: an acceleration sensor for detecting a vibration state of the bend portion; a sensor holding part disposed inside the heat transfer tube and configured to hold the acceleration sensor; and a vibration force generation part configured to generate a vibration force for vibrating the heat transfer tube along a plane in which a curvature circle of the bend portion exists. The vibration force generation part is configured to cooperate with the sensor holding part and vibrate the heat transfer tube along the plane in which the curvature circle exists.
    Type: Application
    Filed: January 30, 2018
    Publication date: May 20, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shingo Nishida, Kazuo Hirota, Ryoichi Kawakami
  • Patent number: 11007614
    Abstract: Provided is a workpiece retention device that retains a frame which includes a workpiece main body and a lip flange and a base flange that are provided to the workpiece main body, wherein: the workpiece retention device comprises a plurality of grippers that are aligned in the lengthwise direction of the frame, and a horizontal movement mechanism and a vertical movement mechanism that move the plurality of grippers; the gripper each include: a lower block, a workpiece support pin that is provided to the lower block and that supports the frame, an upper block that can move toward the base flange of the supported frame, a block movement mechanism that moves the upper block; and a suction mechanism that is provided to the upper block and that suctions the workpiece main body on the base flange side.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: May 18, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Atsushi Sugai, Shota Hosoi, Takashi Shibutani, Kengo Imaoka, Megumu Tsuruta
  • Patent number: 11009606
    Abstract: A laser radar device includes: a light-transmission-side lens that shapes a laser beam emitted from a laser light source into a line shape extending along a horizontal direction; a scanner that projects the line-shaped laser beam while scanning the same in a vertical direction of a measurement-target area; a light-reception-side lens that receives reflected light reflected from the measurement-target area; a light reception line sensor including a plurality of light reception cells lined up along the horizontal direction; a light-reception-side optical system that gathers the reflected light received by the light-reception-side lens toward the light reception line sensor, and in which the light-gathering ratio in the vertical direction is set so as to be greater than the light-gathering ratio in the horizontal direction; and an information generation unit that generates three-dimensional information of the measurement-target area based on a reception signal outputted by the light reception line sensor.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: May 18, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kohei Kawazoe, Takahiro Kubota
  • Publication number: 20210131397
    Abstract: A water-flow power generating apparatus for generating electricity by a force of a water flow in water includes a main body including one rotor configured to rotate by a force received by blades from a water flow, a generator generating electricity by a rotation force of the rotor, and a pod accommodating the generator; a mooring cable for mooring the main body to a bottom of water; and a connecting mechanism for connecting the mooring cable to the pod. The mooring cable and the pod are relatively movable along a vertical plane orthogonal to a center axis of the rotor. A center of buoyancy of the apparatus main body is on a vertical upper side with respect to a center of gravity of the apparatus main body.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 6, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hiroyuki Ishida, Shinkichi Tanigaki
  • Publication number: 20210130569
    Abstract: Provided is a method for decomposing a plastic composite with which it is possible to sufficiently decompose the matrix resins of the plastic composite in a short time even when the heating temperature of the plastic composite is low. In this method for decomposing a plastic composite, the plastic composite is brought into contact with an inorganic oxide catalyst having a band gap of 4 eV or less in a reactor, and the atmospheric temperature in the reactor is set at 380 to 530° C. in the presence of oxygen, and the surface temperature of the plastic composite is 480 to 650° C., which is at least 50° C. higher than the atmospheric temperature.
    Type: Application
    Filed: August 19, 2019
    Publication date: May 6, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Katsumi NOCHI
  • Patent number: 10995755
    Abstract: The present invention provides a co-rotating scroll compressor that can inhibit leakage of lubricant supplied to a synchronous drive mechanism. A co-rotating scroll compressor includes a drive-side plate 20 placed between a driving scroll member 70 and a motor 5 at a predetermined distance from the driving scroll member 70 in a direction of a drive-side rotation axis CL1. The drive-side plate 20 includes a shaft portion 20b fixed to a driving shaft 6 of the motor 5 and a fixing portion 20a fixed to an outer periphery of the driving scroll member 70, and a synchronous drive mechanism made up of a needle bearing 32a and a pin 32b is placed between the drive-side plate 20 and driving scroll member 70.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: May 4, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takuma Yamashita, Takahide Ito, Keita Kitaguchi, Makoto Takeuchi, Hirohumi Hirata
  • Patent number: 10995629
    Abstract: A variable nozzle mechanism in which a nozzle mount has a first surface which has a minimum clearance in a direction of an axis with respect to a lever side facing surface in an opposing region facing the lever side facing surface in the direction of the axis, and a second surface which is disposed adjacent to the first surface in a circumferential direction of the nozzle mount and has a clearance in the direction of the axis with respect to the lever side facing surface larger than the clearance in the direction of the axis between the first surface and the lever side facing surface.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 4, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yuya Nakahara, Tatsuya Ishizaki, Noriyuki Hayashi, Toyotaka Yoshida
  • Patent number: 10998527
    Abstract: An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0×102 ?cm.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: May 4, 2021
    Assignees: ROHM CO., LTD., MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Junji Kido, Toshio Matsumoto