Patents Assigned to IHI Corporation
-
Publication number: 20240084714Abstract: A centrifugal compressor includes: a housing including an intake flow path; a compressor impeller arranged in the intake flow path and including a plurality of blades; an accommodation chamber formed upstream of the blades in a flow of intake air in the housing; a movable member arranged in the accommodation chamber and movable to a protruding position where the movable member protrudes into the intake flow path and to a retracted position where the movable member is retracted from the intake flow path; a plurality of slits formed closer to the blades with respect to the accommodation chamber in the housing and connected to the intake flow path; a plurality of compartment walls circumferentially separating the plurality of slits; and an outer circumferential wall connecting radially outer ends of the plurality of compartment walls.Type: ApplicationFiled: November 6, 2023Publication date: March 14, 2024Applicant: IHI CorporationInventors: Atsushi YONEMURA, Ryota SAKISAKA, Yoichi SATO, Taiki KANZAWA
-
Patent number: 11927214Abstract: A thrust foil bearing includes a foil which faces a thrust collar mounted on a shaft in an axial direction, and a case which supports the foil and surrounds the thrust collar, wherein a cooling hole is formed in the case.Type: GrantFiled: July 14, 2021Date of Patent: March 12, 2024Assignee: IHI CORPORATIONInventor: Naomichi Omori
-
Publication number: 20240079907Abstract: A power transmitter includes: a first coil that wirelessly transmits the electric power to a second coil of a power receiver; a converter including a DC/AC converter that converts DC electric power into AC electric power and supplies the AC electric power to the first coil; and a controller that brings a power value of the DC electric power or the AC electric power close to a power command value by frequency control of changing a frequency of the AC electric power. The controller performs, when the frequency at which the power value reaches the power command value is included in a used frequency band used by another device, frequency change process of changing the frequency so that the frequency becomes a frequency different from the used frequency band while performing constant power control of maintaining a state in which the power value matches the power command value.Type: ApplicationFiled: November 26, 2020Publication date: March 7, 2024Applicant: IHI CorporationInventor: Shiro NAGAOKA
-
Publication number: 20240069231Abstract: A method of processing seismic data by a reflection seismic survey includes: calculating a first pseudo-water-surface reflection wave by virtually propagating a direct wave represented in the seismic data in a progressing direction of a time axis by a time in which the acoustic wave propagates in the water at a distance twice a depth of the seismic source, and further correcting an amplitude of the direct wave so that the amplitude is approximated to an amplitude of a water-surface reflection wave of the acoustic wave represented is the seismic data; and subtracting a component corresponding to the first pseudo-water-surface reflection wave from the seismic data.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicants: IHI CorporationInventors: Hiroaki OZASA, Hitoshi MIKADA
-
Publication number: 20240066985Abstract: In a detection method of a loading anomaly, relationship between a steering control value of a vehicle and a proper turning radius for the steering control value is constructed as a control map. An actual turning radius of the vehicle is calculated by using a self-location detection function of the vehicle. A difference between the proper turning radius and the actual turning radius is calculated by using the control map. It is determined that a loading anomaly of a cargo loaded on the vehicle has occurred when the difference lies outside a predetermined first reference range.Type: ApplicationFiled: October 25, 2023Publication date: February 29, 2024Applicant: IHI CORPORATIONInventors: Satoru TAGAWA, Yoshiharu KANESHIMA
-
Patent number: 11914041Abstract: A detection device, which detects a behavior of a vehicle in a preset detection area using a laser radar that generates point cloud information by irradiating the detection area with laser light and receiving reflected light resulting from the irradiation with the laser light, includes an acquisition unit configured to acquire the point cloud information, a vehicle detection unit configured to detect a vehicle on the basis of the point cloud information, and a behavior detection unit configured to detect a target behavior that is a vehicle behavior subjected to detection in response to the vehicle detected by the vehicle detection unit having moved from a first area to a second area, in which the first area and the second area are included in the detection area and are set according to the target behavior.Type: GrantFiled: March 13, 2019Date of Patent: February 27, 2024Assignee: IHI CORPORATIONInventors: Kenichi Hamaguchi, Yosuke Seto, Yoshihisa Yamanouchi
-
Patent number: 11912149Abstract: This misalignment detection device is provided with: a plurality of coils which receive lines of magnetic force generated by a power transmitting coil and are disposed side by side line-symmetrically with respect to an axis line as a symmetrical axis; a plurality of temperature sensors which are disposed adjacent to each of the plurality of coils and output temperatures; and a processing device for detecting misalignment of a power receiving coil with respect to the power transmitting coil along the axis line on the basis of a difference for evaluating a difference between the temperatures. With this misalignment detection device, it is possible to perform positional misalignment detection which is not easily affected by surroundings.Type: GrantFiled: July 16, 2019Date of Patent: February 27, 2024Assignee: IHI CORPORATIONInventors: Atsushi Asano, Takayoshi Bando
-
Publication number: 20240060431Abstract: A turbocharger includes: a housing; a plurality of covers each of which encloses at least a part of an outer surface of the housing, the plurality of covers including at least a first cover and a second cover, each of the plurality of covers accommodating an insulator between the cover and the outer surface of the housing; and a connecting piece directly arranged on the outer surface of the housing and connecting the first cover and the second cover.Type: ApplicationFiled: November 1, 2023Publication date: February 22, 2024Applicant: IHI CorporationInventors: Tomohiro HONMA, Kenta KAWAMITSU, Yoshinari YOSHIDA
-
Patent number: 11906053Abstract: A valve device includes: a mounting plate including a rotary shaft; an insertion hole formed in the mounting plate; a valve including a shaft portion inserted into the insertion hole; a larger-diameter portion of the shaft portion, at least a part of the larger-diameter portion being located within the insertion hole; a smaller-diameter portion of the shaft portion, a diameter of the smaller-diameter portion being smaller than that of the larger-diameter portion; a stepped surface formed between the larger-diameter portion and the smaller-diameter portion on the shaft portion; and a position regulating portion provided on the smaller-diameter portion, the position regulating portion being attached on the smaller-diameter portion at a position spaced apart from the stepped surface in a central axis direction of the shaft portion.Type: GrantFiled: June 16, 2022Date of Patent: February 20, 2024Assignee: IHI CorporationInventor: Jinhee Byon
-
Patent number: 11898751Abstract: Conducted are coal-ash generating step for generating coal ash, sintered-ash generating step for heating the coal ash at temperatures within combustion temperature range of coal-fired boiler to generate sintered ash at each heating temperature, sticking-degree calculating step for rotatively separating each sintered ash by ratra tester to calculate sticking degree from weight ratio of each sintered ash after and before the rotary separation of the sintered ash, correlation determining step for burning each coal having corresponding sticking degree calculated to measure exhaust gas temperature and obtain correlation between sticking degrees and exhaust gas temperatures, exhaust-gas-temperature predicting step for predicting exhaust gas temperature from sticking degree of coal to be employed as fuel based on the correlation between the sticking degrees and the exhaust gas temperatures and adhesion predicting step for predicting ash adhesion in the coal-fired boiler based on the exhaust gas temperature predictedType: GrantFiled: February 5, 2021Date of Patent: February 13, 2024Assignees: IHI Corporation, IHI INSPECTION AND INSTRUMENTATION CO., LTD.Inventors: Hirotaka Kawabe, Kenjiro Chie, Junichi Shigeta
-
Patent number: 11898457Abstract: A bearing includes: an annular main body through which a shaft is inserted; a plurality of oil supply grooves included on an inner curved surface of the main body and extending in an axial direction of the main body; a thrust bearing surface included on an end surface of the main body; a plurality of tapered portions included on the thrust bearing surface separated from an outer peripheral edge of the thrust bearing surface at intervals in a circumferential direction of the main body and communicating with the oil supply grooves, the tapered portions each becoming shallower as it extends in the circumferential direction; and an oil discharge groove included on the thrust bearing surface, passing through one tapered portion among the plurality of tapered portions, and connecting an oil supply groove and the outer peripheral edge.Type: GrantFiled: January 24, 2023Date of Patent: February 13, 2024Assignee: IHI CorporationInventor: Akihiro Ueda
-
Patent number: 11892032Abstract: A thrust foil bearing includes: a base plate including an insertion hole through which a shaft is inserted; and a top foil disposed around the insertion hole, wherein the top foil includes: a slit dividing the top foil into an inner area and an outer area in a radial direction of the insertion hole; a sandwiched part disposed in the outer area; an extending part extending from the sandwiched part to the inner area; and an inclined part being in the inner area, having an end on one side in a circumferential direction of the insertion hole connected to the extending part, extending from the extending part toward another side in the circumferential direction, and inclined with respect to a flat surface of the base plate extending a direction orthogonal to an axial direction of the insertion hole.Type: GrantFiled: January 20, 2020Date of Patent: February 6, 2024Assignee: IHI CORPORATIONInventor: Naomichi Omori
-
Patent number: 11890638Abstract: A powder supply device includes a hopper accommodating powder, a cylindrical roller provided below the hopper and rotatable around a rotational axis, and a wall surface storing the powder in a space between the roller and the wall surface. The powder supply device moves the powder stored between the roller and the wall surface in a rotation direction of the roller and drops the powder by the roller rotating. A plurality of groove portions extending in an axial direction are formed in a peripheral surface of the roller. At least one of the groove portions is formed such that a capacity allowing the powder to be accommodated changes in the axial direction.Type: GrantFiled: October 5, 2018Date of Patent: February 6, 2024Assignee: IHI CORPORATIONInventors: Daiki Hayashi, Tetsuyuki Terauchi, Yuichiro Nakayama, Ken Akiyama, Miki Shinagawa
-
Publication number: 20240035415Abstract: A combustion device includes: a liner including an opening at an end, the liner inside of which is formed with a combustion chamber; an air flow path communicating with the opening of the liner; an ammonia supply pipe inserted through the opening of the liner; and a starting fuel supply pipe disposed between the ammonia supply pipe and the air flow path.Type: ApplicationFiled: September 7, 2023Publication date: February 1, 2024Applicant: IHI CorporationInventors: Shintaro ITO, Masahiro UCHIDA
-
Patent number: 11885343Abstract: A centrifugal compressor includes: a housing including an intake flow path; a compressor impeller disposed in the intake flow path; an accommodation chamber formed upstream of the compressor impeller in the housing; a movable member disposed in the accommodation chamber and configured to be movable between a retracted position where the movable member is retracted from the intake flow path and a protruding position where the movable member protrudes from the accommodation chamber into the intake flow path, the protruding position being located closer to the intake flow path with respect to the retracted position, and a contacting portion and a non-contacting portion provided on an accommodation chamber opposing surface of the accommodation chamber, the accommodation chamber opposing surface being positioned upstream of the movable member, the contacting portion being contactable with the movable member, the non-contacting portion being non-contactable with the movable member.Type: GrantFiled: December 13, 2021Date of Patent: January 30, 2024Assignee: IHI CorporationInventors: Ryota Sakisaka, Takashi Fujiwara, Atsushi Yonemura, Takahiro Bamba
-
Publication number: 20240026814Abstract: A combustion device includes: an ammonia tank; a combustor connected to the ammonia tank; an air supply source; and an ammonia autothermal cracking device having inlets connected to the ammonia tank and the air supply source and an outlet connected to the combustor.Type: ApplicationFiled: October 3, 2023Publication date: January 25, 2024Applicant: IHI CorporationInventors: Shintaro ITO, Masahiro UCHIDA
-
Patent number: 11878281Abstract: A reactor includes: a heat exchange section including: a first flow channel configured to flow a reaction fluid and a second flow channel configured to flow a heat medium; an introduction path for a temperature sensor, extending from an insertion opening provided on a side surface of the heat exchange section to the first flow channel or the second flow channel; a pipe for a temperature sensor, connected to a side surface of the heat exchange section and communicating with the introduction path through the insertion opening; and a jig provided in the pipe. The jig is provided with a guide hole extending from the base end toward the tip end and opened toward the insertion opening of the introduction path. The guide hole is provided with a tapered hole directed from the base end toward the tip end.Type: GrantFiled: December 9, 2020Date of Patent: January 23, 2024Assignee: IHI CORPORATIONInventors: Yusuke Takeuchi, Takuya Yoshinoya, Daisuke Tsunoda, Taiga Yamamoto, Akihisa Yano, Shunji Miyajima, Shigeki Sakakura, Hiroyuki Kamata, Nobuyuki Honma
-
Patent number: 11879638Abstract: A boiler performs mixed-fuel combustion of a sulfur-containing fuel and ammonia as a fuel, and includes a furnace having a plurality of wall parts, a burner installed on at least one of the wall parts of the furnace, and an ammonia injection port that is configured to cause the ammonia to be burned as the fuel to flow along an inner wall surface of the wall part where the burner is not installed.Type: GrantFiled: January 22, 2021Date of Patent: January 23, 2024Assignee: IHI CorporationInventors: Juwei Zhang, Takamasa Ito, Sakiko Ishihara
-
Publication number: 20240019124Abstract: Provided is a gas turbine system, including: an ammonia tank; a combustor connected to the ammonia tank; an exhaust flow passage connected to the combustor; a turbine provided in the exhaust flow passage; a cracked-gas reservoir connected to the combustor; and an ammonia cracking catalyst, which is arranged on a downstream side of the turbine in the exhaust flow passage, and is connected to the ammonia tank and the cracked-gas reservoir.Type: ApplicationFiled: September 27, 2023Publication date: January 18, 2024Applicant: IHI CorporationInventors: Shintaro ITO, Masahiro UCHIDA
-
Publication number: 20240017492Abstract: A three-dimensional modeling device models a three-dimensional object by irradiating a powdered material with an electron beam to melt and stack the powdered material. The three-dimensional modeling device includes a beam emitting unit that irradiates the powdered material with the electron beam by emitting the electron beam. The beam emitting unit irradiates the powdered material with the electron beam while scanning the electron beam in a direction orthogonal to a contour line of a modeling region in at least a contour portion of the modeling region that is a cross-section of the object.Type: ApplicationFiled: November 30, 2021Publication date: January 18, 2024Applicant: IHI CORPORATIONInventors: Yoshihiko NAGATA, Guillaume MOHARA, Masashi MOURI