792 patents
Page 5 of 40
Utility
Composite material, pultrusion device, and pultrusion method
12 Sep 23
A pultrusion material serves as a composite material having a reinforced part that is a part reinforced against a load acting in a load direction.
Shunichi Morishima, Toshio Kozasa, Masatake Hatano, Kazuaki Kishimoto, Yukio Takeuchi, Masayuki Yamashita, Hitoshi Ojika
Filed: 4 Jul 17
Utility
Steam turbine rotor blade
12 Sep 23
Provided is a steam turbine rotor blade having, at an intermediate position in a blade length direction thereof, a tie boss for connection to an adjacent blade, wherein the steam turbine rotor blade includes a leading edge side protrusion that is extending in an embankment shape in a blade chord length direction at an intermediate position in the blade length direction, a start end and a terminal end of the leading edge side protrusion are located on a suction side surface and a pressure side surface, respectively, and the leading edge side protrusion continues from the start end to the terminal end via a blade leading edge and arrangement thereof in the blade length direction overlaps with the tie boss as viewed from the upstream side.
Yasuhiro Sasao, Soichiro Tabata, Ryo Takata, Chongfei Duan
Filed: 19 Nov 21
Utility
Startup control device, startup control method, and program
12 Sep 23
A startup control device for adjusting a startup schedule during startup of a power generation plant, the device includes: a determining unit which determines, on the basis of a predicted value of a physical quantity corresponding to the elapsed time from startup when the power generation plant has started up on the basis of a prescribed optimal startup schedule, and an observed value of the physical quantity acquired during the startup of the power generation plant, whether the observed value will exceed the predicted value.
Takaharu Hiroe, Kazunari Ide, Ryo Sase, Yoshito Nagahama, Hiroshi Ito, Yukihito Okuda, Nobuhiro Osaki, Shoichiro Hosomi
Filed: 22 Jul 20
Utility
Swaging device and swaging method
5 Sep 23
Provided is a swaging device including: an upper anvil that is disposed in a state in which the upper anvil faces an end surface of a head of a rivet; a lower anvil that is disposed in a state in which the lower anvil faces an end surface of a shaft portion of the rivet; and a pressurizing mechanism that generates a pressurizing force of causing a distance between the upper anvil and the lower anvil along an axial line to decrease and plastically deforms the rivet, in which an end surface of the upper anvil includes a bottom surface that perpendicularly intersects the axial line X and a support surface that has a projecting length in a direction of the axial line with respect to the bottom surface gradually increasing from an inner circumferential side toward an outer circumferential side in the radial direction formed therein, and an inclination angle of the support surface is smaller than an inclination angle of the inclined surface of the rivet by a predetermined angle.
Yuki Tsukioka, Akira Ikada, Michinobu Takahagi
Filed: 2 Jun 21
Utility
Compressor and gas turbine
5 Sep 23
A compressor includes a rotor including a plurality of disks, a shaft portion connected on a downstream side of the disks; and rotor blade rows fixed to the plurality of disks; a stator including a compressor casing; and a plurality of stator vane rows each provided between corresponding adjacent ones of the rotor blade rows; an outlet guide vane including blade main bodies disposed at an interval in a circumferential direction on the downstream side of the disk located most downstream, and inner shrouds connecting the blade main bodies in the circumferential direction, on an inner side in a radial direction; and an inner casing disposed on the downstream side of the disk located most downstream with a gap between the disk and the inner casing.
Chihiro Myoren, Ryosuke Mito, Daisuke Morita
Filed: 19 Aug 20
Utility
Gas turbine combustor and its operating method
5 Sep 23
Tomohiro Asai, Shohei Yoshida, Yoshitaka Hirata, Akinori Hayashi, Yasuhiro Akiyama, Yoshinori Matsubara
Filed: 29 Sep 20
Utility
Combustor and gas turbine including the combustor
5 Sep 23
The upstream-side wall portion 54 includes, in the circumferential direction thereof, a first region 31 where air inlets 30 are formed at a lower density, and a second region 32 which is disposed at a position offset from the first region 31 in the circumferential direction, and in which the air inlets 30 are formed at a higher density than in the first region 31.
Yoshikazu Matsumura, Naoki Abe, Kenji Sato, Shinji Akamatsu, Kenta Taniguchi, Satoshi Takiguchi
Filed: 23 Jul 18
Utility
Steam turbine hollow blade
22 Aug 23
A steam turbine hollow stationary blade is able to reduce the amount of water droplets captured on a blade surface.
Yasuhiro Sasao, Soichiro Tabata, Ryo Takata, Nao Taniguchi
Filed: 16 Jul 21
Utility
Gas turbine and method for adjusting flow rate of fuel supplied thereto
15 Aug 23
A gas turbine including a fuel gas supply system to supply fuel gas via a fuel piping to a gas turbine combustor, a pressure control valve installed halfway along the fuel piping, a flow control valve installed in the fuel piping at downstream of the pressure control valve, and a control device configured that in a case where a flow rate change occurs in the fuel gas flowing through the fuel gas supply system, along with a tendency of change in an opening degree of the pressure control valve or a pressure P1 at upstream of the pressure control valve, a command value of the flow rate of the fuel gas that is determined based on a demand value of a gas turbine load is adjusted so that the change is suppressed in the opening degree of the pressure control valve or the pressure P1.
Tatsuya Hagita, Keita Naito, Mitsuhiro Karishuku, Masaya Kato, Satoshi Tanimura
Filed: 16 Sep 21
Utility
Jig for and method of measuring length of stud bolt
15 Aug 23
A length measuring jig measures the length of a tubular stud bolt with a central hole defined axially therethrough while the tubular stud bolt remains mounted on a target product such as a steam turbine casing.
Yohei Tsuchiya, Takahiro Igawa
Filed: 1 Jun 22
Utility
Cooling wall, gasifier, integrated gasification combined cycle, and manufacturing method of cooling wall
8 Aug 23
A cooling wall includes: a wall surface defined by arrangement of central axes of a plurality of cooling tubes; and an opening formed in a part of the wall surface in which a burner is installable, each of the plurality of cooling tubes forming the opening has a straight portion and a curved portion, the plurality of cooling tubes include a first cooling tube whose first virtual axis extending in an axial direction of the straight portion overlaps the opening, and a second cooling tube whose second virtual axis extending in an axial direction of the straight portion is located outside an outer circumference of the opening in a radial direction, the curved portion of the first cooling tube is arranged so as to form a curve along the outer circumference surface of the opening and on a surface along the wall surface.
Yuta Konagayoshi, Makoto Toyomaru, Kengo Muroya, Fumihiro Chuman
Filed: 7 Nov 19
Utility
Transition piece, combustor, and gas turbine engine
8 Aug 23
A transition piece includes a first flow passage group formed by arranging a plurality of intra-wall flow passages, a second flow passage group, and a plurality of dilution holes that penetrate a plate, and establish communication between a compressed air main flow passage and a combustion gas flow passage, each intra-wall flow passage of the first flow passage group and the second flow passage group having an inlet facing the compressed air main flow passage at an end portion on a side near the gas turbine, and having an outlet facing the combustion gas flow passage at an end portion on a side near the combustor liner, a dilution hole being located nearer to the inlet of an intra-wall flow passage of the second flow passage group than to the outlet of the intra-wall flow passage of the second flow passage group.
Naoto Fujiwara, Shohei Numata, Yasuhiro Wada, Shota Igarashi, Yoshitaka Hirata
Filed: 16 Sep 22
Utility
Steam turbine
8 Aug 23
A steam turbine includes an outer casing (19) that is provided with a first steam outlet port (54), through which exhaust steam flowing through the entire length of a flow path (21) defined between an inner casing main body (45) and an outer casing main body (51) in a direction along an axis (O1) is discharged to the outside of the outer casing (19), and a second steam outlet port (55), which is provided in the outer casing main body (51) and through which the exhaust steam passing through a portion of the flow path (21) or the exhaust steam not passing through the flow path (21) is discharged to the outside of the outer casing (19); a first valve (28) that adjusts opening of the first steam outlet port (54); and a second valve (32) that adjusts opening of the second steam outlet port (55).
Hideyuki Uechi, Hideaki Sugishita, Takumi Matsumura, Ryo Egami
Filed: 20 Oct 17
Utility
Method and system for measuring turbine shape
8 Aug 23
A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed.
Koji Ishibashi, Shunsuke Mizumi, Kenji Yashirodai, Jie Huang
Filed: 8 Nov 21
Utility
Turbine stator blade and steam turbine
8 Aug 23
A turbine stator blade (21) includes a pressure side (21P) extending in a radial direction intersecting a flow direction of steam, and facing upstream in the flow direction.
Shunsuke Mizumi, Chongfei Duan, Yasuhiro Sasao, Soichiro Tabata
Filed: 14 Feb 20
Utility
Turbine blade and method for manufacturing the turbine blade
1 Aug 23
A turbine blade including an airfoil portion having a leading edge, a trailing edge, and a pressure surface and a suction surface extending between the leading edge and the trailing edge.
Satoshi Mizukami, Masamitsu Kuwabara, Satoshi Hada, Saki Matsuo, Yoshitaka Uemura, Ryozo Tamura, Yasumasa Kunisada
Filed: 23 Mar 21
Utility
Gas turbine system and moving unit including the same
1 Aug 23
Provided is a gas turbine system that is used for a moving body including a thrust generator configured to generate thrust from electric power and includes: a compressor that compresses external air to generate compressed air; a combustor that burns the compressed air generated by the compressor together with fuel to generate a combustion gas; a turbine driven by the combustion gas generated by the combustor; a first generator that is coupled to the turbine to generate electric power by driving of the turbine and supplies electric power to the thrust generator; and a second generator that is arranged downstream of the turbine in a flow direction of a combustion gas and converts kinetic energy and/or thermal energy of a combustion gas that passed through the turbine into electric power.
Yuichi Nakatani, Yuki Morisaki
Filed: 13 Feb 20
Utility
Metal powder production apparatus
1 Aug 23
A metal powder production apparatus capable of easily preventing an oxide in a molten metal from entering a liquid nozzle is provided.
Takashi Shibayama, Shigenobu Eguchi, Shinya Imano
Filed: 26 Nov 19
Utility
Bending method
25 Jul 23
A workpiece material is fed between rollers to bend the workpiece material while rolling, wherein the workpiece has a first thickness portion and a second thickness portion connected to each other with a setting angle of 90 degrees.
Takahiro Tachibana, Jin Shinmura, Arata Yoshida, Hiroaki Matsui
Filed: 9 Jun 21
Utility
Method for producing composite material, fiber base material, and shaping mold for fiber base material
25 Jul 23
A method for producing a composite material in which a first fabric and a second fabric made from a fiber material are impregnated with a thermosetting resin and integrally molded, wherein a resin flow path through which thermosetting resin flows is provided between the first fabric and the second fabric, and the first fabric and the second fabric are impregnated with thermosetting resin from the resin flow path as well as being impregnated with thermosetting resin from the surface.
Kodai Shimono, Hiroshi Tokutomi
Filed: 13 Feb 19