792 patents
Utility
Steam turbine plant and method for cleaning same
16 Jan 24
This steam turbine plant comprises: a boiler; a steam turbine; a condenser; a condensate pump; a main steam line that is capable of guiding, to the steam turbine, steam generated in the boiler; a bypass line that is branched from the main steam line and is connected to the condenser; a condensate line that is capable of guiding, to the condensate pump, water in the condenser; a condensate outlet valve that is provided in the condensate line; a water supply line that is capable of guiding, to the boiler, water having a pressure which has been increased in the condensate pump; a first connection unit that is, in the condensate line, branched from a position which is closer to the condenser than the condensate outlet valve is; and a second connection unit that is, in the condensate line, branched from a position which is closer to the condensate pump than the condensate outlet valve is.
Daiki Fujimura, Takafumi Niwa, Ayumu Kuroshima, Motohiro Goshima
Filed: 19 Jul 21
Utility
Pump
16 Jan 24
A cylindrical gap is formed between a production pipe and a pump stator, the pump stator has a tubular pump casing that surrounds a plurality of pump bodies, the pump casing is provided with a penetrating portion that penetrates the pump casing in a radial direction and communicates with the gap, and the penetrating portion is formed in a portion of the pump casing that faces a pump body, which is located in an intermediate stage of the plurality of pump bodies, in the radial direction.
Kimihiko Mitsuda, Shuhei Sasaki
Filed: 26 Feb 20
Utility
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16 Jan 24
A heat exchanger core according to an embodiment includes: a first header space; a plurality of first layered header passages; a plurality of first communication port rows; and a plurality of first passages.
Shunsaku Eguchi, Minemasa Omura, Yoichi Uefuji, Hiroyuki Nakaharai, Koichi Tanimoto, Masaya Hatanaka, Nobuhide Hara, Takuo Oda
Filed: 24 Feb 21
Utility
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16 Jan 24
A repair welding method according to at least one embodiment is for a member in which a first end and a second end of a parent material are connected by welding and includes: a step of removing a portion including at least a part of a first heat-affected zone of an existing welded portion of the member; and a step of performing repair welding after removing the portion.
Masaki Honda, Toshiaki Nishio, Nobuyoshi Komai, Takumi Tokiyoshi, Masaaki Fujita, Kimihiko Tominaga, Hiroyuki Ohyama, Fumitoshi Sakata, Koichi Teshima, Eiji Murakami, Akinori Yamaguchi, Fumio Nishi
Filed: 19 Jul 19
Utility
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16 Jan 24
A method of the invention produces a composite material conjugate in which a first composite material and a second composite material are adhered without using an adhesive, wherein a first prepreg laminate to which a release member is attached is cured to form the first composite material, the release member being made of a material that does not transfer silicone and fluorine to the first prepreg laminate, after detaching the release member from the first composite material, surface treatment that imparts polar functional groups to the surface of the first composite material to which the release member was bonded is carried out to activate the surface, a second prepreg laminate is placed directly on the activated surface of the first composite material, and the second prepreg laminate is cured to form a second composite material adhered to the first composite material.
Hiromichi Akiyama, Kiyoka Takagi
Filed: 26 May 20
Utility
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16 Jan 24
A methanol production system of the present disclosure includes: a reformer including a reaction furnace configured to reform methane in a raw material gas to produce a reformed gas containing CO and H2; a reduced-gas generator configured to reduce CO2 to produce a reduced gas containing CO; and a methanol-containing gas generator configured to produce a methanol-containing gas which contains methanol from a reformed gas produced in the reaction furnace and a reduced gas produced in the reduced-gas generator.
Shoichi Furukawa, Hidehiko Tajima
Filed: 30 Nov 21
Utility
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16 Jan 24
An explosion-proof apparatus includes a frame having a hollow shape; a gas supply device configured to maintain inside of the frame at pressure higher than certain pressure by supplying gas to the inside; an electrical component disposed inside the frame; a battery configured to supply power to the electrical component; a protective device configured to stop power supply from the battery to the electrical component; a battery housing enclosure being an increased-safety explosion-proof enclosure configured to house the battery therein; and a protective device housing enclosure being a flameproof explosion-proof enclosure configured to house the protective device.
Ken Onishi, Koji Shukutani, Hiroyoshi Okazaki, Syuhei Kobori, Noriko Onishi, Hiroyoshi Kojima
Filed: 7 Mar 19
Utility
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16 Jan 24
The purpose of the present invention is to provide: fuel cell system that can further stabilize an operation of the system; and control method thereof.
Hiroyuki Ozawa, Yasushi Iwai, Kimi Kodo, Kenta Araki
Filed: 27 Jan 21
Utility
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9 Jan 24
A turbine blade is provided with an airfoil portion having a leading edge, a trailing edge, and a pressure surface and a suction surface which extend between the leading edge and the trailing edge, the airfoil portion internally forming a cooling passage.
Satoshi Mizukami, Masamitsu Kuwabara, Satoshi Hada, Saki Matsuo, Yoshitaka Uemura, Ryozo Tamura, Yasumasa Kunisada
Filed: 23 Mar 21
Utility
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9 Jan 24
A turbine blade includes: a platform; an airfoil portion extending from the platform in a blade height direction and having a pressure surface and a suction surface extending between a leading edge and a trailing edge; a blade root portion disposed on opposite side of the airfoil portion across the platform in the blade height direction and having a bearing surface; and a shank disposed between the platform and the blade root portion.
Takashi Yokoyama, Toshihiro Takeda, Toshifumi Kanno, Hikaru Kurosaki
Filed: 10 Feb 21
Utility
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2 Jan 24
In a granular material supply system including a tank that stores granular material, a carrier line through which the granular material flowing out of the tank is carried to a carrier destination, and a cutout line that connects the tank and the carrier line and through which the granular material flowing out of the tank is supplied to the carrier line, a control device includes a density control unit configured to control a density of the granular material on a downstream side of a junction of the cutout line and the carrier line to a set value predetermined and a flow rate control unit configured to control a flow rate of the granular material to be supplied to the carrier destination through the carrier line to a command value instructed by the carrier destination.
Takaharu Hiroe, Kazunari Ide, Akihiko Saito, Kei Moriyama
Filed: 21 Dec 22
Utility
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2 Jan 24
A control device includes a route acquisition unit configured to acquire routes of a movable body for moving target objects to or from a target position at which the target objects are to be picked up or dropped, a reference position/posture acquisition unit configured to acquire information on a position at which the movable body picks up or drops a first target object of the target objects at the target position, and an information output unit configured to output information acquired by the route acquisition unit to the movable body.
Kenji Takao, Yusuke Kinouchi, Noriyuki Hasegawa
Filed: 30 Mar 21
Utility
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2 Jan 24
A fuel injection control device according to an embodiment is a device for controlling fuel injection performed by a fuel injection device disposed in a cylinder of a two-stroke engine, comprising: a scavenging and exhaust gas state quantity acquisition part configured to acquire a parameter related to a state quantity of scavenging and exhaust gas in the cylinder; a swirl momentum calculation part configured to calculate a momentum of swirl generated in the cylinder on the basis of the parameter; and a fuel injection pressure calculation part configured to calculate an injection pressure of fuel from the fuel injection device corresponding to the momentum of swirl calculated by the swirl momentum calculation part.
Kengo Tanaka, Takashi Ueda, Yuki Koshiba, Sigetoshi Sugata
Filed: 17 Mar 21
Utility
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2 Jan 24
This steam turbine is provided with: a steam turbine rotor which extends in an axial direction; a pair of bearings which support the steam turbine rotor in such a way as to be capable of rotating about the axial direction; a steam turbine casing which encloses the steam turbine rotor between the pair of bearings; a casing support unit which supports the steam turbine casing from below; and a first heating unit which is provided on the casing support unit and which is capable of heating the casing support unit.
Makoto Kondo, Katsuhisa Hamada
Filed: 18 Aug 20
Utility
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2 Jan 24
A burner assembly includes a plurality of burners for mixing fuel and air.
Shinichi Fukuba, Satoshi Takiguchi, Keisuke Miura, Tomohiro Asai, Kenji Miyamoto, Tomo Kawakami
Filed: 27 Sep 22
Utility
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2 Jan 24
In a gas turbine and a control method thereof, and a combined cycle plant, the gas turbine includes a compressor that compresses air, a combustor that mixes and combusts compressed air compressed by the compressor and fuel, a turbine that obtains rotational power using combustion gas generated by the combustor, a compressed air cooling heat exchanger that cools the compressed air to produce air for heat exchange, air temperature adjusting heat exchangers that exchange heat between the air and the compressed air, a heat exchange amount adjusting device that adjusts a heat exchange amount of each of the compressed air cooling heat exchanger and the air temperature adjusting heat exchangers, and a control device that controls the heat exchange amount adjusting device, in which the control device controls the heat exchange amount adjusting device based on a temperature of the air to be taken into the compressor.
Daisuke Asaki, Masashi Terauchi
Filed: 25 May 20
Utility
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2 Jan 24
A device for measuring a polarization direction of a linearly polarized received wave with circularly polarized antennas includes an intensity ratio providing unit that provides, to the antennas, intensity ratios different depending on an arrival direction for the received wave; a storage unit that stores a first table in which an intensity ratio of a vertically polarized component of the received wave between two of the antennas is associated with the arrival direction and a second table in which an intensity ratio of a horizontally polarized component of the received wave between the two antennas is associated with the arrival direction; a detector that acquires an intensity ratio of the received wave; an acquiring unit that acquires the arrival direction; and an arithmetic unit that calculates the polarization direction of the received wave based on the acquired intensity ratio and the intensity ratios of the vertically and horizontally polarized components.
Noriyasu Kato
Filed: 15 Mar 22
Utility
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19 Dec 23
An additive manufacturing nozzles includes a header (41) extending in a width direction of the chamber and which is configured to be supplied with inert gas from the outside, and a nozzle body (43) connecting with the header (41) in the width direction and is configured to horizontally blow out the inert gas, which is supplied from the header, to a molding area.
Kei Higashi, Kazuhiro Yoshida, Yoshinao Komatsu, Takanao Komaki
Filed: 30 Oct 18
Utility
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19 Dec 23
A jig for assembling and extracting a blade root spring for fixing a rotor blade to a rotor includes: an extrusion mechanism for extruding the blade root spring or an extrusion rod pressed against the blade root spring; and a base plate to which the extrusion mechanism is fixed.
Yuto Takeuchi
Filed: 30 Mar 21
Utility
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12 Dec 23
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