1801 patents
Page 77 of 91
Utility
Monitoring Target Selecting Device, Monitoring Target Selecting Method, and Program
15 Jul 20
A monitoring target selecting device configured to output a measurement parameter to an abnormality diagnosis device to diagnose an abnormal event of a plant based on a correlation value representing a mutual correlation between measurement parameters, and includes a classification unit to acquire a plurality of measurement parameters measured in the plant, classify a change behavior of measured value over a time for each of the plurality of measurement parameters in a first period, and classify a change behavior of a measured value over a time for each of the plurality of measurement parameters in each of the first period and a second period, and a selection unit to select the measurement parameter as a measurement parameter to be output to the abnormality diagnosis device on the basis of a result of comparing a behavior of the measurement parameters in the first period to the second period.
Susumu Shiizuka, Masumi Nomura
Filed: 6 Aug 18
Utility
Laser Beam Irradiation Apparatus and Laser Beam Irradiation System
15 Jul 20
A laser beam irradiation apparatus including: a plurality of laser light sources emitting first laser beams; and a light-condensing optics system having an incident face on which the first laser beams are made incident and performing an optical operation on the first laser beams to emit second laser beams.
Masashi IWASHIMIZU, Hiroyuki DAIGO, Shingo NISHIKATA, Kazunori MASUKAWA, Atsushi OCHIAI, Toshikazu EBISUZAKI, Satoshi WADA, Yoshiyuki TAKIZAWA
Filed: 24 Apr 18
Utility
Supercharging System
8 Jul 20
An object is to provide a supercharging system capable of actively and easily controlling a rotational speed of a turbine generator.
Yukio YAMASHITA, Takuya KOYANAGI, Vissuta JIWARIYAVEJ, Ayumi NAITO
Filed: 22 May 19
Utility
Infrared Heating Device
8 Jul 20
Provided is an infrared heating device that appropriately sets positions of infrared lamps and a radiation thermometer relative to an object to be heated and is easily positioned.
Toshikatsu NOHARA, Takashi SHIBUTANI, Shigenari HORIE, Makoto TAMURA
Filed: 23 Aug 17
Utility
Wind turbine power generating apparatus and method of operating the same
6 Jul 20
A method of operating a wind turbine power generating apparatus including a wind turbine rotor having a wind turbine blade includes: a step of obtaining a load applied to the wind turbine blade; and a step of selecting an operation mode of the wind turbine power generating apparatus on the basis of the load, from among a plurality of operation modes including a normal operation mode and at least one load-suppressing operation mode in which the load applied to the wind turbine blade is smaller than in the normal operation mode.
Mitsuya Baba, Yoshiyuki Hayashi, Wakako Ariki
Filed: 29 Dec 16
Utility
Pyrolyzed coal quencher, coal upgrade plant, and method for cooling pyrolyzed coal
6 Jul 20
A pyrolyzed coal quencher includes: a first water spray tube 79 that sprays water on pyrolyzed coal having a temperature of 300° C. or more obtained after pyrolyzing coal; a first cooling tube 80 that performs indirect cooling on the pyrolyzed coal obtained after spraying water by the first water spray tube 79 to a temperature of 100° C. or more; a second water spray tube 82 that sprays water on the pyrolyzed coal cooled by the first cooling tube 80 such that the pyrolyzed coal has a desired water content; and a second cooling tube 83 that performs indirect cooling on the pyrolyzed coal cooled by the first cooling tube 80 to a desired temperature of less than 100° C.
Shintaro Honjo, Kiyotaka Kunimune, Motofumi Ito, Junji Asahara
Filed: 8 Mar 15
Utility
Motor, turbocharger and assembly method turbocharger
6 Jul 20
An turbocharger with an electric motor (30) includes a housing (33), stator (32), and motor rotor.
Hidetaka Nishimura, Takeshi Tsujii
Filed: 29 Aug 17
Utility
Vertical pump and urea synthesis plant
6 Jul 20
A vertical pump includes: a rotary shaft; multi-stage impellers; a casing accommodating the multi-stage impellers; a mechanical seal provided in a penetration part of the casing for the rotary shaft; a balance sleeve, the balance sleeve being positioned between a final stage impeller of the multi-stage impellers and the mechanical seal in the penetration part for the rotary shaft; an intermediate chamber provided between the rotary shaft and the casing and provided on an opposite side of the multi-stage impellers across the balance sleeve in an axial direction of the rotary shaft, the intermediate chamber communicating with an intermediate stage impeller among the multi-stage impellers; a low pressure chamber provided between the rotary shaft and the casing, the low pressure chamber communicating with a low pressure side compared to the intermediate chamber; and a partition wall part dividing the intermediate chamber and the low pressure chamber.
Hiroshi Funakoshi, Yasushi Ueda, Akio Maeda, Yasuhiro Koyama, Hidetoshi Fukuta, Masahide Ikunami
Filed: 8 Nov 17
Utility
Method of spray drying and washing and method of controlling air pollution
6 Jul 20
A method of spray drying and washing using a spray drying apparatus, includes: spraying dehydrated filtrate from a spray nozzle hung down from a top side of the spray drying apparatus; introducing a part of flue gas into the spray drying apparatus to dry the dehydrated filtrate; wherein a compressed air is introduced into the spray nozzle to facilitate the spraying and into the wash nozzle to perform air purging during the spray drying, and jetting washing liquid from a wash nozzle provided on a side wall of the spray drying apparatus to wash the spray nozzle and an inside of the spray drying apparatus body, wherein the feeding of the dehydrated filtrate to the spray nozzle is stopped during the washing.
Toshihiro Fukuda, Seiji Kagawa, Jun Satou
Filed: 26 Jun 18
Utility
Electric power generation control device for causing a reduction in a torque command, electric power generation control method and program
6 Jul 20
The present electric power generation control device includes: an event detection unit which detects an event attributable to a deterioration in the balance between a torque input to a generator and an effective power output by the generator, the deterioration being caused by a reduction in a set value of the effective power received from the generator by an electric power converter when the electric power converter has detected a failure necessitating interruption of electric power transmission from the generator by a direct-current (DC) power transmission unit, the DC power transmission unit transmitting DC power, the electric power converter connecting a generator to the DC power transmission unit; and a torque command reduction unit which causes a reduction in a torque command to a motor when the event detection unit has detected the event attributable to the deterioration in the balance, the motor outputting the torque input to the generator.
Masayuki Hashimoto, Tsuyoshi Wakasa, Yoshiyuki Kono, Shuhei Fujiwara
Filed: 1 Dec 15
Utility
Processing Device and Processing Method
1 Jul 20
This processing device is provided with: a tool for machining a workpiece W along the thickness direction thereof, the width-direction external shape of the workpiece W being substantially finished; and a flexible vice 7 that clamps the workpiece W in the width direction without clamping the workpiece W in the thickness direction.
Jun ETO, Hirokazu UNNO
Filed: 8 Nov 17
Utility
Steam Valve, and Power Generation System
1 Jul 20
A steam valve has a tubular stop valve configured to move toward an upper/lower end side along a direction of an axis when the stop valve is opened/closed; and a valve main body accommodating the stop valve, wherein a base end portion including an end portion of the stop valve at the upper end side is accommodated in a first accommodation space formed in the valve main body, the base end portion has a plurality of inclination surfaces formed on an outer circumference of the base end portion which are inclined such that a distance from the axis to each of the plurality of inclination surfaces decreases toward the upper end side, and a plurality of contact surfaces are formed in the first accommodation space to come in contact with the plurality of inclination surfaces respectively when the stop valve moves toward the upper end side.
Noriyuki HASEGAWA, Kensuke FUTAHASHI, Megumu TSURUTA
Filed: 26 Nov 19
Utility
Steam Valve, Power Generation System, and Inspection Method for Steam Valve
1 Jul 20
A steam valve has a tubular stop valve configured to move toward an upper end side and a lower end side along an axial direction when the stop valve is opened and closed respectively; and a valve main body configured to accommodate the stop valve.
Noriyuki HASEGAWA, Kensuke FUTAHASHI, Megumu TSURUTA
Filed: 26 Nov 19
Utility
Centrifugal Compressor
1 Jul 20
A centrifugal compressor includes one or more impellers, a casing which covers the one or more impellers, and a silencer.
Toshifumi KUDO, Takaya KODA, Yuichiro SAWADA, Yoshiko TAKEI
Filed: 23 Dec 19
Utility
Adaptive Optical System and Adaptive Optical Method
1 Jul 20
Observing a disturbance of a wavefront of reference light received from a target and generating a wavefront in a conjugate relationship with the wavefront by use of a driving optical system.
Masashi IWASHIMIZU, Hiroyuki DAIGO, Shingo NISHIKATA, Kazunori MASUKAWA, Atsushi OCHIAI, Toshikazu EBISUZAKI, Satoshi WADA, Yoshiyuki TAKIZAWA
Filed: 24 Apr 18
Utility
Turbine blade and gas turbine
29 Jun 20
A turbine rotor blade includes an airfoil portion having an airfoil defined by a pressure surface and a suction surface; and a squealer rib on a tip surface of the turbine rotor blade, the squealer rib extending from a leading-edge side (toward a trailing-edge side.
Kazuya Nishimura, Daigo Fujimura, Eisaku Ito, Koichi Ishizaka
Filed: 19 Oct 15
Utility
Combustor, jet engine, flying body, and operation method of jet engine
29 Jun 20
A combustor of a jet engine includes a fuel injector, an igniter for igniting a gas mixture of air and fuel, and a flame holder.
Yoshihiko Ueno, Oto Yamamoto, Tasuku Suzuki, Shojiro Furuya
Filed: 12 Feb 15
Utility
Vortex generator and wind turbine blade assembly
29 Jun 20
A vortex generator for a wind turbine blade includes at least one fin including a suction surface and a pressure surface.
Motoshi Harada
Filed: 11 Jun 18
Utility
Controller for wind turbine, wind turbine, program for rotor turning, and method of rotor turning for wind turbine
29 Jun 20
A controller of a wind turbine for causing the wind turbine to perform rotor turning includes: an input part for receiving a target azimuth angle at which a rotor of the wind turbine is to be stopped; and a pitch control part configured to cause the wind turbine to perform a pitch control to stop the rotor at the target azimuth angle.
Mitsuya Baba
Filed: 28 Dec 16
Utility
Method of detecting damage of wind turbine blade, and wind turbine
29 Jun 20
A method of detecting a damage of a wind turbine blade of a wind turbine rotor includes: a light input step of inputting light into a fiber-optic sensor mounted to the wind turbine blade; a light detection step of detecting reflection light from the grating portion; an obtaining step of obtaining a wavelength fluctuation index representing a fluctuation amount of a wavelength of the reflection light detected in the light detection step; and a detection step.
Yoshikatsu Ikawa, Katsuhiko Takita, Takao Kuroiwa, Mitsuya Baba, Kazunari Ide, Takuya Koyanagi
Filed: 7 Aug 17