Patents Assigned to Mitsubishi Heavy Industries
  • Measuring jig for rotary machine and member management method for rotary machine
    Patent number: 11512951
    Abstract: The measuring jig for the rotary machine is a measuring jig for a rotary machine including a casing that extending about an axis, a rotor that is disposed in the casing and extends in an axial direction about the axis, and a plurality of bearings that are disposed at intervals in the axial direction and supports the rotor in the casing. The measuring jig includes a plurality of casing fixing portions that are respectively attachable to and detachable from bearing holding portions to which the bearings are attached in the casing; a main member that extends in the axial direction so as to connect the plurality of casing fixing portions to each other; an arm that extends from the main member in an orthogonal direction orthogonal to the axial direction; and a reference surface that is disposed at a distance from a measurement target part of the casing.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yasuhiko Kawamura, Kyoichi Ikeno, Yuzo Tsurusaki, Yuichi Sasaki
  • Precombustion chamber engine
    Patent number: 11512625
    Abstract: A precombustion chamber engine comprises: a cylinder head defining a main combustion chamber together with a cylinder liner and a piston top surface; a precombustion chamber cap mounted on the cylinder head by inserting a distal end portion of the precombustion chamber cap into an insertion hole formed in the cylinder head; a precombustion chamber holder disposed inside the cylinder head; and a precombustion chamber cap holding member fixed to the precombustion chamber holder and configured to suspend and support the precombustion chamber cap. The precombustion chamber cap includes a reduced diameter portion with a diameter decreasing from a proximal end portion of the precombustion chamber cap to an intermediate portion that has a smaller diameter than the proximal end portion.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventor: Yuuta Furukawa
  • Turbine rotor blade, turbocharger, and method for producing turbine rotor blade
    Patent number: 11512634
    Abstract: A turbine rotor blade according to at least one embodiment of the present invention is to be connected to a rotational shaft so as to be rotatable around an axis and includes: a hub having a hub surface inclined with respect to the axis in a cross-section along the axis; at least one rotor blade disposed on the hub surface; and a connection passage disposed inside the turbine rotor blade and connecting a first opening disposed in the at least one rotor blade and a second opening disposed downstream of the first opening in the turbine rotor blade.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takao Yokoyama, Toru Hoshi, Toyotaka Yoshida, Keigo Sakamoto
  • Fuel nozzle of gas turbine combustor and manufacturing method thereof, and gas turbine combustor
    Patent number: 11511378
    Abstract: [Problem] To provide a fuel nozzle for a gas turbine combustor, offering favorable durability and strength reliability. [Solving Means] A method for manufacturing a fuel nozzle for a gas turbine combustor, the method comprising: (a) fitting a fuel nozzle having an internal through hole into a through hole or a recess provided in a base plate; (b) bonding, by a fusion joint or a brazing joint, the fuel nozzle to the base plate in an interface therebetween on a surface of the base plate; and (c) following the step of (b), subjecting the fuel nozzle and the base plate to a pressure bonding process to thereby pressure bond the fuel nozzle and the base plate in the interface therebetween.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: November 29, 2022
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yoshihide Wadayama, Satoshi Kumagai, Keisuke Miura, Mitsuhiro Karishuku, Satoshi Dodo
  • Sintered body, method of manufacturing sintered body, combustor panel, and method of manufacturing combustor panel
    Patent number: 11511339
    Abstract: By melting a shaping material in which a metal powder and a binder are mixed and by carrying out injection molding (primary shaping) in an injection mold, an injection molded body, or an intermediate shaped body are produced. The injection molded body or the intermediate shaped body is placed by a transfer mold and is subjected to a gravity shaping (secondary shaping) with a transformation. A sintered body is manufactured by carrying out debindering and sintering to the injection molded body.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES AERO ENGINES, LTD.
    Inventors: Kenji Suzuki, Syuntaro Terauchi, Hisashi Kitagaki, Kazuki Hanami, Tadayuki Hanada
  • Geared compressor and method of designing geared compressor
    Patent number: 11512706
    Abstract: A geared compressor includes a plurality of compression units and a compression-unit-driving mechanism which drives the plurality of compression units. The compression-unit-driving mechanism includes a plurality of driven gears which are provided in respective rotation shafts of the plurality of compression units and a plurality of large-diameter gears which are directly or indirectly driven by a drive source and have outer diameters larger than those of the plurality of driven gears. The plurality of large-diameter gears is arranged side by side in a horizontal direction and each of the plurality of large-diameter gears meshes with two or more of the plurality of driven gears.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hiroyuki Miyata, Masahiro Kobayashi
  • Regeneration cooler of ramjet engine, and manufacturing method of the same
    Patent number: 11512852
    Abstract: A regeneration cooler (2) includes a passage forming structure (10) in which a fuel passage (11) is formed for liquid fuel to be supplied. A coating (12, 12A) is formed in the fuel passage (11) to at least partially cover a wall surface of the fuel passage (11). The coating (12, 12A) contains metal particles (13) adhered and fixed to the wall surface (11a) of the fuel passage (11) and a coating material (14, 17).
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kenji Suzuki, Makoto Minoya
  • ELECTRIC COMPRESSOR
    Publication number: 20220372980
    Abstract: This electric compressor (10) has: an accommodating case (15) that accommodates an inverter device (19) and includes an accommodating section body (31), a substrate support section (32) protruding from a bottom surface (31a) of the accommodating section body (31), and a cover member (34) that closes an opening in the accommodating section body (31); and an antivibration member (17) that is positioned between one surface (51a) of a head part (51) of a bolt (16) fastened to the substrate support section (32) and an inner surface (34a) of the cover member (34), and that is bonded to the one surface (51a) of the head part (51) and the inner surface (34a) of the cover member (34).
    Type: Application
    Filed: October 11, 2019
    Publication date: November 24, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Takayuki HAGITA, Akinori YOSHIOKA, Manabu SUZUKI, Hideo SAHO
  • REIGNITION PROCESSING DEVICE, REIGNITION METHOD, AND PROGRAM FOR GAS ENGINE
    Publication number: 20220372928
    Abstract: A reignition processing device for a gas engine for executing a reignition process of a cylinder during operation of a gas engine having multiple cylinders is provided with: an execution permission unit configured to, when at least one of the cylinders misfires, perform permission determination whether to execute the reignition process of the misfiring cylinder, on the basis of a damage diagnosis result based on an in-cylinder pressure of the misfiring cylinder, presence or absence of abnormality in a control device which performs combustion control and combustion diagnosis of the gas engine, an operational history related to the misfiring cylinder, and an operational state of the gas engine; and a reignition execution unit configured to execute the reignition process of the misfiring cylinder that is permitted by the permission determination to execute the reignition process.
    Type: Application
    Filed: October 28, 2020
    Publication date: November 24, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Junnosuke ANDOU, Masato MITSUHASHI, Hiroaki TSUBOKAWA, Takahiro KOAKUTSU
  • THRUST BEARING DEVICE AND TURBOCHARGER
    Publication number: 20220372987
    Abstract: A thrust bearing device is provided with: a rotational shaft; a collar member fitted to the rotational shaft and having a first thrust surface; and a thrust member having an insertion hole into which the rotational shaft is inserted and a second thrust surface which is disposed around the insertion hole and faces the first thrust surface of the collar member. The first thrust surface is configured to be inclined with respect to a plane perpendicular to an axis of the rotational shaft so that a distance between the first thrust surface and the second thrust surface periodically increases and decreases with rotation of the rotational shaft.
    Type: Application
    Filed: December 4, 2019
    Publication date: November 24, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takaya FUTAE, Seigi YANO, Shimpei YOKOYAMA, Tasuku MASUDA, Yuya KOJIMA, Yosuke DAMMOTO
  • Turbine housing and turbo charger provided with same
    Patent number: 11506086
    Abstract: Provided is a turbine housing (10) having: a housing part (11) that forms a spiral space (S5) extending around a rotating shaft (40); a heat-shielding core (12) which is disposed in the spiral space (S5) and forms a spiral exhaust gas flow passage (S6) in which exhaust gas introduced from an exhaust gas introduction port flows; and a variable nozzle mechanism (13) that guides the exhaust gas to a turbine wheel, wherein heat-shielding spaces (S1, S2, S3) are formed between the inner circumferential surface of the housing part (11) and the outer circumferential surface of the heat-shielding core (12), and wherein the heat-shielding core (12) has a first flange part (12d) and a second flange part (12e) and is fixed between the variable nozzle mechanism (13) and the housing part (11) while a first sealing (14) is interposed between the first flange part (12d) and the variable nozzle mechanism (13).
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventor: Takashi Arai
  • Capacitor unit, and electric compressor
    Patent number: 11509186
    Abstract: A capacitor unit (20) includes: a harness side terminal (23) provided in a housing (22) for accommodating a capacitor main body therein and connectable to an electric power harness for supplying DC power from an outside; and a board side terminal (24) connectable to a circuit board from which the DC power is output via the capacitor main body. The board side terminal (24) extends in a plate shape from a base portion (24b) held in the housing (22) toward a distal end portion (24a) connected to the circuit board, and has a notch portion (40) recessed inward of the board side terminal (24) in a width direction between the base portion (24b) and the distal end portion (24a).
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Makoto Hattori, Hiroyuki Kamitani, Hiroto Higuchi, Takayuki Takashige
  • State display device for plant and state display method for plant
    Patent number: 11507073
    Abstract: A state display device 100 includes a display device 30 for displaying a temporal change of a first parameter representing an operation state of a thermal power generation facility 10, and a correlation between the first parameter and a second parameter representing an operation state of the thermal power generation facility 10, an input device 70 for respectively selecting and inputting a first period t1 and a second period t2 different from the first period t2 in the temporal change of the first parameter, and a processing device 50. The processing device 50 is configured to display the temporal change of the first parameter on the display device 30, and to display, on the display device 30, the correlation between the first parameter and the second parameter in each of the first period t1 and the second period t2 input via the input device 70.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Koji Imakita, Toshihiko Niinomi
  • Motor and method of producing the same
    Patent number: 11509190
    Abstract: A motor includes: a motor housing; a stator disposed inside the motor housing and supported by the motor housing; and a thermally conductive sheet disposed so as to fill a gap in a radial direction or an axial direction between the motor housing and the stator.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Vissuta Jiwariyavej, Yukio Yamashita
  • Charge gas compressor train for ethylene plant
    Patent number: 11506209
    Abstract: A charge gas compressor train for an ethylene plant includes: a steam turbine; and a compression unit that is configured to be driven by the steam turbine to compress a charge gas. The compression unit includes a closed impeller at each impeller of a plurality of compression stages. An outer diameter of blades of the closed impeller at least at an initial stage of the plurality of compression stages is 1,400 to 1,800 mm. A maximum operating peripheral speed of the blades of the closed impeller at the initial stage at an outermost diameter position is 350 to 400 m/s. An output of the charge gas compressor train is 100 to 140 MW.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Takashi Oda, Yusuke Oishi
  • Variable geometry turbocharger
    Patent number: 11506114
    Abstract: A variable geometry turbocharger (100) includes a bearing housing (10) including a bearing-housing side support portion (40) configured to support a radially outer portion (38) of a nozzle mount (16) from a side opposite to a scroll flow passage (4) in an axial direction of a turbine rotor (2), and wherein at least one of the following condition (a) or (b) is satisfied: (a) the bearing-housing side support portion (40) includes at least one bearing-housing side recess portion (46) formed so as to be recessed in the axial direction so as not to be in contact with the radially outer portion (38); (b) the radially outer portion (38) of the nozzle mount (16) includes at least one nozzle-mount side recess portion (62) formed so as to be recessed in the axial direction so as not to be in contact with the bearing-housing side support portion (40).
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Keigo Sakamoto, Yosuke Dammoto, Eigo Katou, Yoji Akiyama, Nariaki Seike, Toyotaka Yoshida, Takeru Chiba
  • Turbine blade maintenance method
    Patent number: 11504750
    Abstract: A cleaning process (blasted-particles cleaning process) includes performing, a plural number of consecutive cycles, an ultrasonic cleaning treatment including immersing a turbine rotor blade in a water basin and conducting an ultrasonic wave into the water basin to clean the turbine rotor blade, and a pressurized-water cleaning treatment including spraying pressurized water into an internal cooling flow channel after the ultrasonic cleaning treatment is performed. The cleaning process is performed after a bonding coat layer removing process of removing a bonding coat layer (first coating layer) by chemical treatment, and a cleaning process of cleaning the turbine blade by blast treatment. Heat tinging process is then performed.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasushi Takeuchi, Yosuke Kawachi, Yoshiyuki Inoue
  • Aircraft component and aircraft gas-turbine engine
    Patent number: 11506385
    Abstract: An aircraft component is used for an aircraft gas-turbine engine. The aircraft component includes an annular part, a flange, and a boss. The annular part has an outer circumferential surface. The flange is formed at one end portion of the annular part in an axial direction. The boss projects from the outer circumferential surface of the annular part to the radial direction. On a section cut along an axial direction of the annular part, the outer circumferential surface of the annular part between the flange and the boss has a taper part that is formed into a tapered shape in which plate thickness becomes thicker from the flange toward the boss.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES AERO ENGINES, LTD.
    Inventors: Tomoyuki Onishi, Yasuyuki Uetsuki, Tadayuki Hanada, Yohei Fujimoto, Takafumi Ota
  • Combined cycle plant, control device thereof, and steam turbine startup method
    Patent number: 11506089
    Abstract: A combined cycle plant includes: a gas turbine having a compressor, a combustor, and a turbine; a supplementary firing burner configured to raise a temperature of an exhaust gas of the gas turbine; a heat recovery steam generator configured to generate a steam using an exhaust heat of the exhaust gas; a steam turbine configured to be driven by the steam generated by the heat recovery steam generator; and a control device configured to change both an output of the combustor and an output of the supplementary firing burner when an output of the combined cycle plant is to be changed.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Goichi Matsushiro, Ken Hatano
  • AIR-CONDITIONING UNIT, HEAT EXCHANGER, AND AIR CONDITIONER
    Publication number: 20220364762
    Abstract: Provided are a heat exchanger that makes it possible to supply air of an appropriate temperature to a plurality of blowing ports of an air-conditioning unit, an air-conditioning unit that comprises the heat exchanger, and an air conditioner. This air-conditioning unit 10 comprises a heat exchanger 20 that exchanges heat between air and a coolant, a blower 11, and an air outflow part 12. The heat exchanger 20 comprises a plurality of tubes 21 in which the coolant flows, an inlet header 23, an outlet header 24, and a fin 22. The inlet header 23 includes: a low-temperature-side coolant inflow part 231 into which coolant that has a relatively low temperature can flow; and a high-temperature-side coolant inflow part 232 into which coolant that has a relatively high temperature can flow.
    Type: Application
    Filed: June 26, 2020
    Publication date: November 17, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: TOMOKI HASE, HIDEAKI TATENOI, NOBUYA NAKAGAWA, YASUO KATAYAMA