792 patents
Page 6 of 40
Utility
Power distribution system and power distribution method
25 Jul 23
A power distribution system 100 is installed in an aircraft, and comprises: a first DC power supply unit 10 including a generator 11; a second DC power source unit 20 including a battery 30, a step-up/down converter 41, a voltage sensor 43, and control unit 44; and a diode 50.
Takaki Inaoka, Yasuto Minamida, Manabu Yamamoto
Filed: 17 Aug 20
Utility
Gas turbine with reduced axial displacement under thermal expansion
25 Jul 23
A gas turbine including a turbine driven by a combustion gas, a gas turbine casing that includes an exhaust casing having an inner tube and an outer tube, a bearing that rotatably supports a shaft of the turbine, a bearing casing that holds the bearing, a support leg that supports the gas turbine casing, struts that connect the inner tube and the outer tube, and a first support and a second support that support the bearing casing on the inner tube.
Kunihiro Oga, Hironori Tsukidate, Atsushi Sano
Filed: 7 Feb 22
Utility
Plant and operation method therefor
25 Jul 23
Provided is a plant that includes: a boiler; a device connected to the boiler; a water supply source that is configured to pool water; a water supply line that supplies water from the water supply source to the boiler; a cooler that transfers heat from a medium to be cooled to supply-water, which is the water flowing along the water supply line; a thermometer that determines a temperature of the medium to be cooled or the supply-water; and a temperature regulator that is configured to regulate the temperature of the medium to be cooled on the basis of the temperature determined by the thermometer.
Hideyuki Uechi, Naoki Hisada
Filed: 30 Jun 21
Utility
Condition monitoring device and condition monitoring method for wind turbine power generating apparatus
25 Jul 23
A condition monitoring device for a wind turbine power generating apparatus provided with an auxiliary motor power supply system including a power-supply-side line connected to a power supply and a plurality of auxiliary-motor-side lines diverging from the power-supply-side line and connected to a plurality of auxiliary motors, respectively, comprises: a current measurement device for measuring a current flowing through the power-supply-side line; and a control device for controlling the plurality of auxiliary motors.
Mitsuya Baba, Yasushi Morishita, Minoru Sugiura, Kazuhiro Tsuyuki, Hideru Sakata
Filed: 27 Apr 21
Utility
End mill inspection device
18 Jul 23
An end mill inspection device, which inspects an end mill having a blade part formed in a curved convex shape or an arc shape, includes: an imaging data acquisition unit that acquires imaging data obtained by capturing an image of a blade part of the end mill by an imaging unit; a contour extraction unit that extracts the contour of the blade part on the basis of the imaging data acquired by the imaging data acquisition unit; and a curvature radius calculation unit that calculates a curvature radius of the contour on the basis of the contour of the blade part extracted by the contour extraction unit.
Jun Eto, Hirokazu Unno
Filed: 24 Dec 19
Utility
Cap seal, fastening structure provided with the same, and method for mounting cap seal
18 Jul 23
Provided are a cap seal with which molding of a seal material by hand can be omitted and variation in cap seal mounting quality can be minimized, a fastening structure provided with said cap seal, and a method for mounting a cap seal.
Hiroki Akamatsu, Koji Irie
Filed: 12 Apr 19
Utility
Rotating machine
18 Jul 23
A rotating machine includes a rotating body rotatably supported in a casing; a rotor blade fixed to an outer peripheral portion of the rotating body; a stator blade arranged on a downstream side in a fluid flow direction with respect to the rotor blade and fixed to an inner peripheral portion of the casing; a sealing device arranged between the inner peripheral portion and a front end of the rotor blade; a swirling flow generation chamber provided in the casing on the downstream side from the sealing device along a circumferential direction of the rotating body; and guiding members provided in the swirling flow generation chamber along a radial direction of the rotating body and in the circumferential direction at predetermined intervals.
Chongfei Duan, Hideaki Sugishita, Kazuyuki Matsumoto, Hideki Ono, Yoshihiro Kuwamura, Kiyoshi Segawa, Hisataka Fukushima
Filed: 13 Nov 19
Utility
Three-dimensional additive manufactured product and three-dimensional additive manufacturing method
18 Jul 23
A three-dimensional additive manufactured product includes a body portion and a male screw portion integrally disposed on a surface of the body portion so as to protrude therefrom.
Masaki Adachi, Akira Ogawara, Katsuhiko Nakamura
Filed: 25 Sep 18
Utility
Ammonia decomposition facility, gas turbine plant equipped with same, and ammonia decomposition method
18 Jul 23
An ammonia decomposition facility includes a heating medium line configured to flow a heating medium heated by heat generated by a gas turbine, an ammonia supply line configured to flow ammonia, an ammonia decomposition device, and an ammonia removal device.
Hidefumi Araki, Satoshi Tanimura, Masakazu Nose, Jun Sasahara, Hideyuki Uechi, Yukio Tanaka, Atsushi Yuasa
Filed: 13 Mar 20
Utility
Gas turbine combustor
18 Jul 23
A gas turbine combustor includes a burner composed of a fuel nozzle group having a plurality of fuel nozzles for fuel supply, a fuel nozzle plate structurally supporting the fuel nozzles and serving to distribute the fuel flowing from an upstream side to the fuel nozzles, and a perforated plate located downstream of the fuel nozzles and having nozzle holes corresponding to the fuel nozzles.
Satoshi Kumagai, Yoshihide Wadayama, Keisuke Miura
Filed: 12 Jan 21
Utility
Unit space update device, unit space update method, and program
18 Jul 23
A unit space update device, which generates a unit space, includes: a detection value acquisition unit which acquires a bundle of detection values detected at a constant cycle; and a deletion processing unit which deletes one bundle from the bundles of the detection values constituting the unit space, when adding the bundle of the detection values to the unit space.
Ichiro Nagano, Mayumi Saito, Keiji Eguchi
Filed: 5 Nov 19
Utility
Wing, flying object, and method for manufacturing a wing
11 Jul 23
A wing includes: a main structural member; a leading-edge member formed of material with a coefficient of linear thermal expansion different from that of material of the main structural member; an eccentric bushing that has a circular through-hole and is shaped in a cylindrical shape; and a coupling member.
Yu Kanazawa, Kenta Katsunaga, Koji Ogimura
Filed: 19 Apr 21
Utility
Rotary electric machine with two-pole rotor and three-phase armature winding
11 Jul 23
A rotary electric machine comprises a two-pole rotor, a three-phase armature winding, and a stator core having fifty-four slots.
Kazuhiko Takahashi, Harumasa Tsuchiya
Filed: 13 Jan 21
Utility
Fluid machine
4 Jul 23
A fluid machine includes: a shaft portion; a shroud surrounding the shaft portion and including an inside surface that forms a flow path-forming surface defining a flow path with the shaft portion; a first propeller rotatably provided in the flow path; a second propeller rotatably provided on a downstream side of the first propeller in the flow path; and a motor including a rotor that is fixed to an outer circumferential portion of the second propeller and that is accommodated in the shroud, and a stator that surrounds the rotor via a clearance and that is fixed in the shroud.
Wataru Yamada, Hideyuki Kudo, Shinichi Isobe, Shigeki Senoo
Filed: 26 May 22
Utility
Propulsion device
4 Jul 23
A propulsion device includes: a duct in which a flow path extending in a direction of an axis; a fan which is provided with a) an outer peripheral ring formed in an annular shape surrounding the axis and installed to be relatively rotatable around the axis with respect to the duct, b) a plurality of fan blades arranged at intervals in a circumferential direction such that each blade is extended from the outer peripheral ring toward the inside of the flow path, and c) an inner peripheral ring formed in an annular shape being connected radially inner end portions of the plurality of fan blades and in which an air flow passage is formed so that air flows therethrough in the direction of the axis; and a motor which drives the fan to rotate around the axis.
Kai Karikomi, Yuki Morisaki, Kazuki Hosono, Junji Iwatani
Filed: 4 Jan 22
Utility
Scramjet engine and flying object
4 Jul 23
A scramjet engine includes first and second flow path forming members and first and second fuel injection devices.
Masaharu Nakamura, Akihiko Tsunemi, Takuto Haniu
Filed: 13 Jul 18
Utility
Bearing device, rotating machine, and nozzle
4 Jul 23
A bearing device includes: a rotary shaft being rotatable around an axis; a bearing pad that supports an outer peripheral surface of the rotary shaft; a nozzle that is disposed on an upstream side of the bearing pad in a rotational direction of the rotation shaft and has a supply hole; a pair of side plates that face the outer circumferential surface of the rotation shaft on an upstream side of the nozzle in the rotational direction and are disposed on both sides of the nozzle in the axial direction, the pair of side plates having a discharge hole; and a guide surface that faces the upstream side in the rotation direction and extends in the axial direction over an entire length of the bearing pad in the axial direction, wherein the guide surface is circumferentially positioned between the supply hole and the discharge hole.
Takuzo Shigihara, Shuichi Isayama, Chihiro Yoshimine, Shimpei Yokoyama, Yuichiro Waki
Filed: 17 Dec 19
Utility
Solid fuel burner, boiler equipment, nozzle unit for solid fuel burner, and guide vane unit
4 Jul 23
A solid fuel burner to be inserted into a burner throat bored in a wall portion of a furnace, comprising: a solid fuel nozzle for ejecting mixed fluid of solid fuel and primary air; a secondary air nozzle for ejecting secondary air; a tertiary air nozzle for ejecting tertiary air; a secondary air guide member for guiding a flow of the secondary air outwardly in a radial direction; and one or more tertiary air guide members for guiding a flow of the tertiary air outwardly in the radial direction at a first angle with respect to a central axis (C) of the solid fuel burner, wherein a distal end position (X2) of each of the tertiary air guide members in an axial direction of the solid fuel burner is at a closer side of the furnace than a distal end position (X1) of the secondary air guide member.
Kenji Kiyama, Kenichi Ochi, Shohei Mito, Kosuke Kitakaze, Toshihiko Mine
Filed: 23 Apr 20
Utility
Burner, combustor including same, and gas turbine
4 Jul 23
A burner comprises: at least one mixing tube extending inside a fuel plenum and having an interior configured to be supplied with an air; and a plurality of fuel injection holes for injecting a fuel supplied to the fuel plenum into the interior of the at least one mixing tube.
Katsuyoshi Tada
Filed: 22 Jan 20
Utility
Early sign detection device and early sign detection method
27 Jun 23
An early sign detection device includes a plurality of sensors, a data acquisition unit configured to acquire time series variation data of a physical amount from each of the plurality of sensors, a computation unit configured to compute an occurrence probability of a vibration mode involved in a sudden variant vibration of a detection subject from an amplitude or a phase of the time series variation data of the physical amount at each of the plurality of positions, and a detection unit configured to detect an early sign of the sudden variant vibration on the basis of the occurrence probability of the vibration mode.
Tomohito Nakamori, Keisuke Matsuyama, Yuki Mitsui
Filed: 11 Jan 21