Patents Assigned to Mitsubishi Heavy Industries Compressor Corporation
  • Compressor
    Patent number: 11143205
    Abstract: A compressor 1 includes a base 10 that is fixed on a foundation F and supports a compressor main body 20 from below in a vertical direction Dv, and a connecting part that detachably connects the compressor main body 20 and the base 10 to each other. The compressor main body 20 includes a suction-side protruding pipe 28A and a discharge-side protruding pipe 28B that communicate between an inside and an outside of a casing 21 and protrude outward from an outer peripheral surface of the casing 21. The base 10 includes a support base 11 having a support surface 11f for supporting a lower part of the casing 21, and a suction port 12 that extends downward from the support base 11 in the vertical direction Dv and has a through-hole into which the suction-side protruding pipe 28A is inserted.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: October 12, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Takashi Oda, Daisuke Hirata
  • Rotary machine
    Patent number: 11143206
    Abstract: A rotary machine includes: a pair of radial bearings for rotatably supporting a rotating shaft around a center axis; impellers fixed to the rotating shaft at positions separated from the radial bearings in a center axis direction; and additional masses fixed to the rotating shaft at positions separated from both the radial bearings and the impellers in the center axis direction, and applying a load to an entire circumference of the rotating shaft so as to move positions of amplitude increase regions where an amplitude in a radial direction of the rotating shaft starts to increase.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 12, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yuji Masuda
  • Impeller manufacturing method, impeller, and rotation machine
    Patent number: 11143198
    Abstract: An impeller 1 according to the present invention includes a disc portion 30 fixed to a rotary shaft 101 that rotates around an axis line O, a cover portion 50 disposed to face the disc portion 30, and a plurality of blade portions 40 provided between the disc portion 30 and the cover portion 50. The impeller 1 includes a first segment SG1 configured of a first disc portion 31 that is a portion of the disc portion 30 on one side of the axis line O, a second segment SG2 in which a second disc portion 35 that is a portion of the disc portion 30 on another side of the axis line O, the cover portion 50, and the blade portions 40 are integrally configured, and a joining layer CL configured to join, by friction welding, the first segment SG1 and the second segment SG2.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 12, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yuya Konno
  • SUPPORTING PLATFORM, ROTATING MACHINE UNIT, AND METHOD FOR MANUFACTURING ROTATING MACHINE UNIT
    Publication number: 20210301971
    Abstract: A supporting platform which supports a rotating machine on a base, includes: a pair of supporting bodies which is provided on the base to be separated from each other in a horizontal direction; a supporting column which is provided on the supporting body, extends upward in a vertical direction, and supports a supporting target portion provided in the rotating machine; an outer adjustment member which supports the supporting body on the base and adjusts a height of the supporting body with respect to the base; and an inner adjustment member which is disposed inside the outer adjustment member in a separation direction of the pair of supporting bodies, supports the supporting body on the base, and adjusts the height of the supporting body with respect to the base.
    Type: Application
    Filed: September 14, 2016
    Publication date: September 30, 2021
    Applicants: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Norio Aratani
  • MANUFACTURING METHOD OF IMPELLER
    Publication number: 20210299812
    Abstract: A manufacturing method of an impeller, the manufacturing method includes: a step of forming an impeller shaped body in which a disc component part constituting a part of the disc, a blade component part constituting a part of the blade, and a cover component part constituting a part of the cover are integrated by laminating a metal layer to extend toward an outer side in a radial direction with respect to the axis by an additive manufacturing method using a metal powder; and a step of grinding the impeller shaped body, in which the steps are repeated a plurality of times, and the step of grinding the impeller shaped body includes a step of polishing an inner surface of the impeller shaped body constituting a part of the flow path.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 30, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • IMPELLER AND CENTRIFUGAL COMPRESSOR
    Publication number: 20210301831
    Abstract: The impeller includes a disc having a main surface extending outward in a radial direction toward one side in an axial direction, a plurality of blades defining a flow path extending to an outlet on one side from an inlet on the other side in the axial direction, and a cover disposed to cover the plurality of blades. At least one of an inlet side region and an outlet side region which are a connection portion between the blade and the main surface and a connection portion between the blade and the cover has a small fillet portion curved in an arc shape and having a small radius of curvature. An intermediate region formed between the inlet side region and the outlet side region has a large fillet portion having a large radius of curvature.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 30, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Miku Kuroda, Hiroaki Oka
  • Centrifugal compressor
    Patent number: 11131319
    Abstract: A centrifugal compressor is provided with a plurality of diaphragms including a first diaphragm and a second diaphragm which are adjacent to each other in an axial direction, a casing disposed on a radially outer side of the plurality of diaphragms and accommodating an internal component including the plurality of diaphragms, at least one axial spacer disposed between the first diaphragm and the second diaphragm, and a scroll flow passage formed by a scroll inner peripheral wall and a scroll outer peripheral wall. The scroll inner peripheral wall is formed by a surface of the first diaphragm positioned on a radially inner side of an outer peripheral surface of the first diaphragm. At least a part of the scroll outer peripheral wall is formed by an inner peripheral surface of the casing.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 28, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Akihiro Nakaniwa, Akinori Tasaki, Daisuke Hirata
  • VIBROMETER ASSEMBLY, ROTATING MACHINE, AND VIBROMETER ATTACHMENT METHOD AND REMOVAL METHOD
    Publication number: 20210293611
    Abstract: A vibrometer assembly including a vibrometer configured to measure vibration of a rotating shaft, includes: a probe of the vibrometer that is to be secured to a bearing device that supports the rotating shaft; a guide cylinder that is to be provided to a case so as to penetrate the case and protrude into the case, the case being located outside the bearing device; an attachment that is to be connected to the probe and inserted into the guide cylinder, and at least partially has a movable portion to allow the probe to be axially aligned with an inside securing portion in the bearing device; and an outside securing portion that secures the attachment to the guide cylinder or the case outside the case.
    Type: Application
    Filed: December 6, 2016
    Publication date: September 23, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Takashi Oda
  • Centrifugal compressor
    Patent number: 11125236
    Abstract: A casing surrounds a rotary shaft and impellers (4), and includes a return flow path through which a fluid discharged from the impeller (4) on a front stage side between the impellers (4) adjacent to each other is guided inward in a radial direction so as to be introduced to the impeller (4) on a rear stage side, and a plurality of return vanes (50) disposed at an interval in a circumferential direction inside the return flow path. An exit angle of the return vane (50) is inclined forward in a rotation direction of the impeller (4), according to the radial direction, and the exit angle of the return vane (50) decreases toward the return vane (50) on the rear stage side.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: September 21, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Shuichi Yamashita
  • Lifting jig, disassembling method of steam turbine, component replacement method of steam turbine, and manufacturing method of steam turbine
    Patent number: 11125116
    Abstract: A lifting jig can lift a rotor and a diaphragm of a steam turbine including a casing that covers the rotor that can be divided with a division surface and the diaphragm that can be divided into an upper half diaphragm and a lower half diaphragm with a division surface. A lifting jig has a diaphragm fixing unit that can be fixed to the upper half diaphragm, a first rotor supporting unit that is integrally formed with a diaphragm fixing unit and can support one end portion of the rotor in an axial direction, and a second rotor supporting unit that is integrally formed with the diaphragm fixing unit and can support the other end portion of the rotor in the axial direction.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: September 21, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yuichi Sasaki, Kyoichi Ikeno
  • DRIVING MACHINE MODULE
    Publication number: 20210285535
    Abstract: A compressor module is provided with: a driving machine that has an output shaft driven to rotate about an axis; a gear part having at least a first gear that rotates integrally with the output shaft and a second gear that rotates integrally with an input shaft of a load device; a storage tank that is arranged below the gear part in the vertical direction so as to support the gear part and that stores lubricating oil; a base plate that supports the driving machine and the storage tank; and a gear support part that supports the gear part with respect to the storage tank so as to be relatively movable in a horizontal direction orthogonal to the vertical direction.
    Type: Application
    Filed: February 6, 2017
    Publication date: September 16, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Naoki Kodama
  • Control device and control method for rotary machine, and rotary machine unit equipped with control device
    Patent number: 11105270
    Abstract: A control device for a rotary machine, which is driven by a turbine output torque which is an output of a turbine and an electric motor output torque which is an output of an induction motor, includes: a required output setting unit configured to set a required torque for driving the rotary machine; and a drive source command unit configured to set the electric motor output torque to a minimum torque or higher of the induction motor and to set the turbine output torque to a value obtained by subtracting the electric motor output torque from the required torque when the turbine output torque is greater than or equal to a lower limit in a stable output range of the turbine.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: August 31, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Tadashi Kawahara, Yoshiyuki Okamoto
  • Steam turbine
    Patent number: 11105201
    Abstract: A steam turbine includes: a rotor; a casing; a thrust bearing; a steam inlet; a first pipe; a first regulation valve; a second pipe; a second regulation valve; and a control device. The control device estimates an exhaust flow rate of the steam turbine based on an operating point map which derives the exhaust flow rate of the steam turbine from an operating point of the steam turbine and estimates the thrust force applied to the thrust bearing based on the exhaust flow rate.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 31, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Takuro Koda
  • ROTARY MACHINE SYSTEM
    Publication number: 20210262476
    Abstract: A rotary machine system includes a rotary electric machine, a rotary machine, a first supply line and a second supply line through which the lubricating oil is supplied to the rotary machine bearing, a first discharge line and a second discharge line through which the lubricating oil is discharged downward from the rotary machine bearing, and a lower discharge line through which the lubricating oil discharged from the first discharge line and the second discharge line flows toward a discharge destination. The lower discharge line has a first connecting portion connected to a lower end of the first discharge line and a second connecting portion connected to a lower end of the second discharge line, and extends such that the lubricating oil heads for the discharge destination through the first connecting portion from the second connecting portion.
    Type: Application
    Filed: February 22, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Masayoshi Kikuchi, Takuya Watanabe, Norikazu Kasaoka
  • COOLING DEVICE
    Publication number: 20210262711
    Abstract: A cooling device includes a cooler disposed inside a shell main body formed in a cylindrical shape, and having a first surface facing an inlet nozzle and an outlet nozzle, and a partition member fixed to the first surface, and partitioning a portion between the cooler and an inner peripheral surface of the shell main body into a first space communicating with the inlet nozzle and a second space communicating with the outlet nozzle. The partition member includes a main partition plate disposed between the inlet nozzle and the outlet nozzle in an axial direction, a first guide portion extending from an end portion of the main partition plate toward a first end surface of the shell main body, and a second guide portion extending from an end portion of the main partition plate toward a second end surface of the shell main body.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Kazutoshi Yokoo, Hiroko Kitamoto
  • STEAM TURBINE
    Publication number: 20210262357
    Abstract: A steam turbine includes a guide member that is disposed between a first rotor blade row and a second stator vane row to guide a fluid from the first rotor blade row toward the second stator vane row. When seen in a circumferential direction, an outer peripheral surface of an inner ring of the second stator vane row is disposed farther to an inner side in a radial direction than an outer peripheral surface of a platform of the first rotor blade row. The guide member has a guide surface that extends from an outer peripheral surface of a shroud of the first rotor blade row toward an inner peripheral surface of an outer ring of the second stator vane row so as to be inclined toward the inner side in the radial direction as the guide surface approaches a second side from a first side in an axial direction.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Takuro Koda
  • MANUFACTURING METHOD OF CASING
    Publication number: 20210260646
    Abstract: A manufacturing method of a casing, the manufacturing method includes a step of manufacturing a plurality of metal members which are components constituting the casing including a casing body having a tubular shape that extends with an axis as a center; a step of arranging the plurality of metal members according to the casing to be formed; and a step of forming the casing by welding the plurality of metal members to each other, in which in the step of manufacturing the metal members, the plurality of metal members are manufactured by at least two kinds of manufacturing methods among forging, steel plate processing, casting, and a fused metal deposition method.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yasunori Sakai, Toshiyuki Yamamori, Makio Morimoto
  • ROTARY MACHINE
    Publication number: 20210262482
    Abstract: A rotary machine includes a plurality of shafts that extend in an axial direction, in which an axis extends, around the axis, are disposed such that at least parts of positions in the axial direction of the plurality of shafts overlap each other, and are rotatable relative to each other around the axis; a plurality of seal members that are disposed at intervals in the axial direction to seal gaps between the plurality of shafts in a radial direction with respect to the axis; and a seal gas supply unit configured to supply a seal gas from outside to a space surrounded by the plurality of shafts and the plurality of seal members.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hiroyuki Miyata, Masahiro Kobayashi
  • METAL LAMINATING AND MODELING METHOD
    Publication number: 20210260681
    Abstract: A metal laminating and modeling method includes a first inclination angle modeling step including a first inclination step of setting a table on which the metal layers are to be formed at a first table inclination angle and setting a welding torch at a first torch inclination angle and a first welding step of forming a weld bead that becomes a part of the modeled object by arc welding with the welding torch and a second inclination angle modeling step including a second inclination step of inclining the table at a second table inclination angle that is larger than the first table inclination angle and setting the welding torch at a second torch inclination angle and a second welding step of forming the weld bead.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • METHOD FOR MANUFACTURING COMPRESSOR AND COMPRESSOR
    Publication number: 20210246906
    Abstract: A method for manufacturing a compressor includes a step of installing a bundle having an O-ring on an outer peripheral surface inside a lower half casing so that a position of the O-ring in an axial direction coincides with a position of a lower half relief groove, a step of installing an upper half casing having an upper half relief groove on the lower half casing so that a position of the upper half relief groove in the axial direction coincides with the position of the O-ring, and a step of pressing the bundle in the axial direction to move the O-ring to a position away from the lower half relief groove and the upper half relief groove, and bringing the O-ring into contact with the inner peripheral surface of the lower half casing and the inner peripheral surface of the upper half casing.
    Type: Application
    Filed: January 22, 2021
    Publication date: August 12, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Takashi Oda, Daisuke Hirata