1801 patents
Page 29 of 91
Utility
Turbine Blade and Gas Turbine
24 Nov 22
A turbine blade includes: an airfoil portion extending in a blade height direction and having a pressure surface and a suction surface each of which extends between a leading and trailing edges; a shroud portion disposed on a blade tip side of the airfoil portion; a fillet portion formed by a curved surface and connected to an end portion of the shroud portion on a side of the airfoil portion; at least one first cooling hole extending along the blade height direction within the airfoil portion; at least one cooling cavity disposed at least partially within the shroud portion and communicating with the at least one first cooling hole; and a second cooling hole connected to the at least one cooling cavity and opening to a surface of the shroud portion.
Kazuya NISHIMURA
Filed: 9 Nov 20
Utility
Rotating Machinery
24 Nov 22
There is provided a rotating machinery including: a rotating body R which is rotatable around an axis O and has a first facing surface P1 that widens in a plane intersecting the axis O; a stationary body S which faces the first facing surface P1 from the axial direction O, and has a second facing surface P2 forming a flow path F1 through which a fluid flows from a radially inner side toward the radially outer side between the first facing surface P1 and the second facing surface P2; and a rotation side projection portion 80 which projects from the first facing surface P1 toward the second facing surface P2, has an annular shape around the axis O, and faces the second facing surface P2 via a clearance C.
Masamichi IINO, Martino RECLARI, Takeshi SANO, Shuichi YAMASHITA, Yoshihiro KUWAMURA
Filed: 8 Aug 22
Utility
Combustor Component, Combustor Including the Combustor Component, and Gas Turbine Including the Combustor
24 Nov 22
A combustor component of a combustor for combusting fuel to produce a combustion gas includes a combustion cylinder forming a passage for the combustion gas, a first acoustic device which internally includes a first cavity communicating with the passage via a first through hole formed in the combustion cylinder, a second acoustic device which is located on a radially outer side of the first acoustic device so as to cover the first acoustic device, and internally includes a second cavity communicating with the passage via a second through hole formed in the combustion cylinder, and a first communication passage causing the first cavity and an outer space of the combustion cylinder to communicate with each other without via the first through hole and the second cavity.
Shinji AKAMATSU, Kenji SATO, Naoki ABE, Taiki KINOSHITA, Hiroki SHIBATA, Norihiko MOTOYAMA
Filed: 21 Dec 20
Utility
Method for Mounting Combustor Component, Combustor
Component Set, Hanging Jig, and Hanging Jig Set
24 Nov 22
In this method for mounting a combustor component, a component hanging step for attaching a string material to a hanging jig mounted on a combustor component and hanging the combustor component with the string material together with the hanging jig, and a component mounting step for mounting a mounting flange of the combustor component at a combustor mounting position of a gas turbine casing are executed.
Satoru HIGUCHI, Shigeharu YASUDA, Seiji KOBAYASHI
Filed: 19 Feb 21
Utility
Inspection System, Inspection Method, and Inspection Program
24 Nov 22
An inspection system for a fabricated object formed by layering powder includes an acquisition unit that acquires an image of a surface of each of layers, an identification unit that identifies a defect portion (protruding portion or recessed portion) on the surface of the powder and a position of the defect portion based on the acquired image, and a determination unit that determines that an abnormality occurs when the defect portion successively occurs at a same position in the plurality of layers.
Takahiro TACHIBANA, Akira KONO, Yoshiyuki OTSUBO, Yusuke YAMASHINA, Akihiro TANAKA, Tatsuya KIMURA
Filed: 18 May 22
Utility
Fuel Cell System and Control Method Therefor
24 Nov 22
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
State display device for plant and state display method for plant
22 Nov 22
A state display device 100 includes a display device 30 for displaying a temporal change of a first parameter representing an operation state of a thermal power generation facility 10, and a correlation between the first parameter and a second parameter representing an operation state of the thermal power generation facility 10, an input device 70 for respectively selecting and inputting a first period t1 and a second period t2 different from the first period t2 in the temporal change of the first parameter, and a processing device 50.
Koji Imakita, Toshihiko Niinomi
Filed: 24 Oct 17
Utility
Turbine blade maintenance method
22 Nov 22
A cleaning process (blasted-particles cleaning process) includes performing, a plural number of consecutive cycles, an ultrasonic cleaning treatment including immersing a turbine rotor blade in a water basin and conducting an ultrasonic wave into the water basin to clean the turbine rotor blade, and a pressurized-water cleaning treatment including spraying pressurized water into an internal cooling flow channel after the ultrasonic cleaning treatment is performed.
Yasushi Takeuchi, Yosuke Kawachi, Yoshiyuki Inoue
Filed: 13 Dec 16
Utility
Combined cycle plant, control device thereof, and steam turbine startup method
22 Nov 22
A combined cycle plant includes: a gas turbine having a compressor, a combustor, and a turbine; a supplementary firing burner configured to raise a temperature of an exhaust gas of the gas turbine; a heat recovery steam generator configured to generate a steam using an exhaust heat of the exhaust gas; a steam turbine configured to be driven by the steam generated by the heat recovery steam generator; and a control device configured to change both an output of the combustor and an output of the supplementary firing burner when an output of the combined cycle plant is to be changed.
Goichi Matsushiro, Ken Hatano
Filed: 31 Dec 19
Utility
Welding Method and Structure
17 Nov 22
Provided is a welding method including: a sheet disposition process of disposing a first and a second protection sheet such that the first and the second protection sheet come into contact with a first and a second composite material and disposing an energization sheet such that the energization sheet comes into contact with the first and the second protection sheet; and a welding process of applying a voltage to a pair of electrode portions disposed at the energization sheet and welding the first and the second composite material, the energization sheet contains the carbon fiber base material oriented in a first predetermined direction connecting the pair of electrode portions, and the first and the second protection sheet contain the carbon fiber base material oriented in a second predetermined direction that substantially perpendicularly intersects the first predetermined direction.
Daisuke TANAKA, Shogo OTOBE, Yoichiro TSUMURA
Filed: 6 Dec 21
Utility
Information Processing Device, Information Processing Method, and Program
17 Nov 22
In an information processing device according to the present invention, an estimation unit is configured to estimate each of a plurality of estimation values related to a target state quantity by using a plurality of models for explaining a target device.
Shintaro Kumano, Makoto Kishi, Keisuke Yamamoto, Katsuhiko Abe
Filed: 26 Jul 22
Utility
Protection Device, Load Drive System, Protection Method, and Recording Medium
17 Nov 22
Yusuke YOSHINO, Takashi NAKAGAMI, Ryo IIDA
Filed: 12 May 22
Design
Display screen with graphical user interface
15 Nov 22
Tadashi Ota, Yutaka Kano, Shingo Hase
Filed: 26 Feb 21
Utility
Abnormality detection device, abnormality detection method, and non-transitory computer-readable medium
15 Nov 22
An abnormality detection device that detects an abnormality of a target device includes a processor that executes a process of acquiring a plurality of types of measured values of the target device, a process of calculating Mahalanobis distances of the acquired plurality of types of measured values, a process of extracting the plurality of Mahalanobis distances calculated in a past predetermined period from a point in time of evaluation of the target device and calculating a moving average value of a square value of each of the extracted Mahalanobis distances, and a process of determining whether or not an abnormality has occurred in the target device on the basis of the moving average value.
Takaharu Hiroe, Kazunari Ide, Ryo Sase
Filed: 25 Jun 20
Utility
Composite material molding method and composite material molding device
15 Nov 22
A method for molding a composite material obtained by laying up a fiber-reinforced base material includes: disposing a lay-up in which the fiber-reinforced base material is laid up, on a molding surface of a molding jig; covering the lay-up with a film to hermetically seal the lay-up; supplying resin toward the lay-up from a resin supplying unit; sucking atmosphere in the film from a degassing waterproof unit while blocking the resin in the film from passing to impregnate the lay-up with the resin; and discharging the resin in the film from a resin discharging unit after the lay-up is impregnated with the resin.
Kodai Shimono, Hiroshi Tokutomi
Filed: 8 Mar 18
Utility
Method for molding composite material structure
15 Nov 22
The present invention addresses the problem of providing a method for molding, using a honeycomb core, a composite material structure that is high-quality, low cost, and leaves less voids.
Kazuki Noma, Hiromichi Akiyama, Toshio Kozasa, Masayuki Kanemasu, Shunichi Morishima
Filed: 26 Feb 19
Utility
Cobalt based alloy product
15 Nov 22
There is provided a cobalt-based alloy product comprising: in mass %, 0.08-0.25% C; 0.1% or less B; 10-30% Cr; 5% or less Fe and 30% or less Ni, the total amount of Fe and Ni being 30% or less; W and/or Mo, the total amount of W and Mo being 5-12%; 0.5% or less Si; 0.5% or less Mn; 0.003-0.04% N; 0.5 to 2 mass % of an M component being a transition metal other than W and Mo and having an atomic radius of more than 130 pm; and the balance being Co and impurities.
Yuting Wang, Shinya Imano, Shigenobu Eguchi
Filed: 7 Mar 19
Utility
Compressor stator vane unit, compressor, and gas turbine
15 Nov 22
A compressor stator vane unit includes multiple compressor stator vanes disposed at a certain interval in a circumferential direction; and an annular joint member connected with inner ends of the multiple compressor stator vanes; wherein the annular joint member constitutes an outer diameter side surface of a leakage fluid flow path provided in an inner diameter side of the joint member to communicate a high-pressure space with a low-pressure space respectively located downstream and upstream of the multiple compressor stator vanes in a fluid flow direction, and D/P is set to 0.05≤D/P≤0.2, wherein D is defined as a distance in an axial direction between an upstream end surface of the annular joint member and an upstream edge of the multiple compressor stator vanes in the fluid flow direction and P is defined as a pitch between the adjacent compressor stator vanes in the circumferential direction.
Ryosuke Seki
Filed: 11 Feb 20
Utility
Turbine rotor blade, turbine, and tip clearance measurement method
15 Nov 22
A turbine rotor blade includes: a root portion fixed to a rotor shaft; and an airfoil portion including a pressure surface, a suction surface, and a top surface connecting the pressure surface and the suction surface, with a cooling passage formed inside the airfoil portion.
Hiroki Kitada, Satoshi Hada, Hiroyuki Otomo, Yasumasa Kunisada
Filed: 20 Nov 19
Utility
Operation control device and operation control method for single shaft gas turbine and program therefor
15 Nov 22
An operation control device for a single shaft gas turbine selects an operation mode based on a load state of a power generator, and controls the turbine based on the operation mode.
Koichiro Iida, Akihiko Saito, Hisanobu Shinoda, Kuniaki Aoyama
Filed: 19 Nov 19