1801 patents
Page 60 of 91
Utility
Steam turbine exhaust chamber and steam turbine system
1 Jun 21
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.
Toyoharu Nishikawa, Hideaki Sugishita, Kazuyuki Matsumoto, Yoshihiro Kuwamura, Kei Nakanishi
Filed: 12 Feb 19
Utility
Fuel injector, combustor, and gas turbine
1 Jun 21
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.
Ryo Yoshino, Keijiro Saito
Filed: 18 Mar 19
Utility
Three-dimensional Manufacturing Apparatus and Three-dimensional Manufacturing Method
27 May 21
A three-dimensional manufacturing apparatus according to at least one embodiment of the present disclosure includes: a manufacturing nozzle for melting a metal material with an energy beam while supplying the metal material to form a bead; a cooling medium nozzle for spraying a cooling medium toward a region including the bead in a workpiece so that the region is cooled locally; a temperature detection unit configured to detect at least a temperature of the region; and a control device for controlling at least one of a scanning rate of the cooling medium nozzle or an amount of the cooling medium to be sprayed per unit time based on a detection result from the temperature detection unit.
Hanami NAOKI, Takahiro TACHIBANA, Yasuyuki FUJIYA, Takayuki TAKAHASHI
Filed: 17 Nov 20
Utility
Pit Gate, Pit Equipment, Nuclear Power Facility, and Pit Gate Installation Method
27 May 21
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.
Hiromu Okamoto, Hisanori Watanabe, Hidetaka Kafuku, Shunsuke Tanaka, Hiroki Mitsui, Yasuharu Suda, Takao Ito, Hayao Kurono, Shuhei Dobara, Takumi Hori
Filed: 21 Sep 18
Utility
Anomaly Detection Device, Method of Detecting Anomaly, and Program
27 May 21
An anomaly detection device includes: an initial-stage detection information acquisition unit that acquires detection information at an initial stage in a series of a machining step performed using one tool; a map-function identification unit that identifies a mapping function for mapping the detection information at the initial stage, on reference detection information; a wear-progress-stage detection information acquisition unit that acquires detection information at a wear progress stage that follows the initial stage in the series of the machining step; a map-function application unit that applies the mapping function to the detection information at the wear progress stage; an anomaly-degree calculation unit that calculates an anomaly degree indicating a degree of difference, from the reference detection information, of the detection information at the wear progress stage to which the mapping function is applied; and an anomaly detecting unit that detects an abnormality of the tool based on determination as to whether the anomaly degree exceeds an anomaly determination threshold value determined in advance.
Yusuke YAMASHINA, Tetsuya MYOJI, Hideaki YAMAMOTO, Shusaku YASUDA
Filed: 30 Oct 20
Utility
Edge Device, Connection Establishment System, Connection Establishment Method, and Non-transitory Computer-readable Medium
27 May 21
An edge device is configured to automatically establish a connection with a remote monitoring device when an abnormality has occurred in a plant.
Kenji TAKAO, Yusuke YAMASHINA
Filed: 4 Feb 21
Utility
Drill and drilling device including the same
25 May 21
Provided is a drill that can drill with good accuracy without over-processing during deburring.
Shuichi Okada
Filed: 28 Aug 17
Utility
Floating structure installation system and floating structure installation method
25 May 21
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.
Kei Sato
Filed: 11 Feb 20
Utility
Method for producing aluminum alloy member, and aluminum alloy member obtained by same
25 May 21
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.
Akiko Inoue, Takayuki Takahashi, Hiroaki Sato
Filed: 13 Oct 15
Utility
Variable nozzle device and variable-geometry type exhaust turbocharger
25 May 21
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.
Keigo Sakamoto, Shigeyoshi Sakuma, Eigo Katou, Yosuke Dammoto, Yoji Akiyama, Nariaki Seike, Hiroyuki Arimizu
Filed: 16 Mar 17
Utility
Vortex generator, wind turbine blade, and wind turbine power generating apparatus
25 May 21
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.
Koji Fukami
Filed: 29 Mar 19
Utility
Co-rotating scroll compressor and method for designing the same
25 May 21
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).
Takuma Yamashita, Takahide Ito, Makoto Takeuchi, Keita Kitaguchi, Hirofumi Hirata
Filed: 1 Aug 17
Utility
Motor pump
25 May 21
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.
Junichi Suematsu, Takeshi Sano
Filed: 22 Apr 19
Utility
Underwater Acoustic Deception System and Underwater Acoustic Deception Method
20 May 21
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.
Shingo NISHIKATA, Koichi HAMAMOTO, Atsushi OCHIAI
Filed: 1 Oct 18
Utility
Supporting Force Inspection Device and Supporting Force Inspection Method
20 May 21
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.
Shingo Nishida, Kazuo Hirota, Ryoichi Kawakami
Filed: 30 Jan 18
Utility
Vibration Suppression Device for Rotary Machine and Rotary Machine
20 May 21
A vibration suppression device for a rotary machine according to at least one embodiment of the present disclosure is a vibration suppression device for a rotor of a rotary machine including a damper pin movably provided inside a gap of the rotor, the damper pin including a magnet, and a magnetic force generation portion provided in the rotor at a periphery of the gap.
Nanoha IKEUCHI
Filed: 6 Nov 20
Utility
Steam Turbine
20 May 21
A steam turbine includes a rotary shaft configured to rotate about an axis, a rotor blade including a rotor blade body extending radially outward from the rotary shaft, and a shroud provided on an end outside in a radial direction of the rotor blade body, a casing enclosing the rotor blade from outside in the radial direction and being formed with a cavity accommodating the shroud on an inner circumference of the casing, a plurality of seal fins protruding radially inward from an opposing surface that faces the shroud in the cavity and being formed with a clearance between an outer circumferential surface of the shroud, and a plurality of swirl breaks that is provided upstream of the plurality of seal fins located most upstream in a direction of the axis in the cavity and that is arranged at intervals in a circumferential direction.
Makoto IWASAKI, Rimpei KAWASHITA, Katsuya YAMASHITA
Filed: 13 Nov 20
Utility
Duct
20 May 21
A duct includes: a tube that is formed to extend from an indoor of a building or a movable body and that allows an outside and the indoor to communicate with each other; an electromagnetic wave inhibiting sloped surface that is formed on an inner surface of the tube and extends to be sloped to approach an axial line of the tube from the outside toward the indoor in an axial direction of the tube and that reflects an electromagnetic wave; and an electromagnetic wave selecting inner peripheral member that has a tubular shape covering the electromagnetic wave inhibiting sloped surface from an inner peripheral side and is capable of selectively transmitting only an electromagnetic wave of a specific frequency incident on the tube.
Yuki YANO, Nobuyuki KAMIHARA
Filed: 29 Oct 20
Utility
Waste Treatment System and Waste Treatment Method
20 May 21
A waste treatment system 100 for performing a hydrothermal treatment of wastes includes a hydrothermal treatment device 10 for performing the hydrothermal treatment by bringing steam into contact with the wastes, a storage facility 8, 9 for storing a fuel produced from a reactant of the hydrothermal treatment, and a heat recovery steam generator 18 for generating the steam to be supplied to the hydrothermal treatment device 10.
Atsuhiro YUKUMOTO, Akira NOMA, Yoshio SEIKI, Yasumichi AOKI, Nobuyuki UKAI, Kazuhiro KAWAI, Jun SATOU, Susumu OKINO
Filed: 11 Apr 19
Utility
Workpiece retention device and workpiece retention method
18 May 21
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.
Atsushi Sugai, Shota Hosoi, Takashi Shibutani, Kengo Imaoka, Megumu Tsuruta
Filed: 7 Jun 17