Patents by Inventor Kai Karikomi
Kai Karikomi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230407837Abstract: A vortex generator for wind turbine blade includes: a platform; and at least one fin disposed projecting from an upper surface of the platform, and including a leading edge and a trailing edge. A rear end surface of the at least one fin, including the trailing edge, has a shape inclined backward as a distance from a bottom surface of the platform increases in a height direction of the fin.Type: ApplicationFiled: November 26, 2021Publication date: December 21, 2023Inventors: Motoshi HARADA, Kai KARIKOMI, Wakako ARIKI, Yasuaki SHIRAISHI
-
Publication number: 20230257072Abstract: A floating body for an offshore wind turbine includes: one first column; two second columns; two lower hulls connecting the first column to each of the second columns; and a beam member connecting the two lower hulls. The beam member is disposed within a height range between an upper surface and a lower surface of each lower hull.Type: ApplicationFiled: June 29, 2021Publication date: August 17, 2023Inventors: Makoto OHTA, Kai KARIKOMI, Masao KOMATSU, Shin TERADA, Shingen TAKEDA, Noriyuki MANABE, Shin NAKAYAMA
-
Patent number: 11691743Abstract: 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.Type: GrantFiled: January 4, 2022Date of Patent: July 4, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kai Karikomi, Yuki Morisaki, Kazuki Hosono, Junji Iwatani
-
Patent number: 11530034Abstract: A ducted fan includes a fan and a cowl having a cylindrical shape and including an introduction port configured to introduce air from a first end portion side. The fan includes a compressor blade provided on an outer circumferential side and a thrust blade provided on an inner circumferential side of the compressor blade. The cowl includes a housing portion configured to accommodate the compressor blade in an interior thereof, an outlet configured to allow air flowing through the housing portion to be blown therethrough by the compressor blade, and an inlet configured to suck air blown out. The outlet is provided inwards in a radial direction of the cowl and near the introduction port of the cowl, and the inlet is provided inwards in the radial direction of the cowl and between the outlet and the compressor blade in an axial line direction.Type: GrantFiled: February 17, 2021Date of Patent: December 20, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yuki Morisaki, Kazuhiro Imai, Kai Karikomi, Yasuhiro Saiki
-
Patent number: 11519388Abstract: A wind turbine offshore installation method of installing a wind turbine using a semi-submersible type floating substructure includes: a step of towing the semi-submersible type floating substructure on which the wind turbine is erected to an installation target site on a sea; and a step of coupling the wind turbine and a spar type floating substructure for supporting the wind turbine on the sea at the installation target site to install the wind turbine on the sea.Type: GrantFiled: February 6, 2020Date of Patent: December 6, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventor: Kai Karikomi
-
Publication number: 20220381226Abstract: A support structure for a wind power generation device comprises: a plurality of floats that can float on the surface of water or in the water; a connecting member having one end connected to one of the floats and the other end connected to another of the floats among the plurality of floats; a support platform that is provided between the plurality of floats and supports the bottom end of a tower part of the wind power generation device; a linear wire member having one end connected to one of the floats and the other end connected to the support platform; and a support member that is provided on the floats or on the connecting member and supports the tower part, which is supported on the support platform, from a lateral direction while the support member being movable along the axial direction of the tower part.Type: ApplicationFiled: November 11, 2020Publication date: December 1, 2022Inventors: Kunihiro MORISHITA, Motoki KATO, Tadashi SUGIMURA, Atsushi YUGE, Kai KARIKOMI
-
Publication number: 20220219828Abstract: 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.Type: ApplicationFiled: January 4, 2022Publication date: July 14, 2022Inventors: Kai KARIKOMI, Yuki MORISAKI, Kazuki HOSONO, Junji IWATANI
-
Patent number: 11300097Abstract: A wind turbine blade apparatus at least includes a wind turbine blade body, wherein a serration portion is disposed on at least on a part of a trailing edge of the wind turbine blade body, the serration portion having a saw-teeth shape where a mountain portion and a valley portion are arranged alternately in a blade longitudinal direction, and wherein a chord-directional cross section of the wind turbine blade body along a chord direction is formed to have an airfoil shape at any position in a region from the mountain portion to the valley portion.Type: GrantFiled: February 4, 2020Date of Patent: April 12, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shoeji Nakaye, Kentaro Hayashi, Atsushi Yuge, Kai Karikomi, Shinsuke Nishimura
-
Publication number: 20210291973Abstract: A ducted fan includes a fan and a cowl having a cylindrical shape and including an introduction port configured to introduce air from a first end portion side. The fan includes a compressor blade provided on an outer circumferential side and a thrust blade provided on an inner circumferential side of the compressor blade. The cowl includes a housing portion configured to accommodate the compressor blade in an interior thereof, an outlet configured to allow air flowing through the housing portion to be blown therethrough by the compressor blade, and an inlet configured to suck air blown out. The outlet is provided inwards in a radial direction of the cowl and near the introduction port of the cowl, and the inlet is provided inwards in the radial direction of the cowl and between the outlet and the compressor blade in an axial line direction.Type: ApplicationFiled: February 17, 2021Publication date: September 23, 2021Inventors: Yuki MORISAKI, Kazuhiro IMAI, Kai KARIKOMI, Yasuhiro SAIKI
-
Publication number: 20210062781Abstract: A wind turbine blade apparatus at least includes a wind turbine blade body, wherein a serration portion is disposed on at least on a part of a trailing edge of the wind turbine blade body, the serration portion having a saw-teeth shape where a mountain portion and a valley portion are arranged alternately in a blade longitudinal direction, and wherein a chord-directional cross section of the wind turbine blade body along a chord direction is formed to have an airfoil shape at any position in a region from the mountain portion to the valley portion.Type: ApplicationFiled: February 4, 2020Publication date: March 4, 2021Inventors: Shoeji NAKAYE, Kentaro HAYASHI, Atsushi YUGE, Kai KARIKOMI, Shinsuke NISHIMURA
-
Patent number: 10895242Abstract: To enable an increase in a torque amount applied to a blade with simple and low-cost means in a natural energy type power generator. An output reinforcement device of a power generator according to an embodiment is an output reinforcement device of a power generator including a rotor that includes at least one blade driven by renewable energy and a hub attached with the blade, the output reinforcement device including a casing that has a tubular shape and disposed to surround the hub, the casing having a through-hole through which the blade is inserted and being configured to rotate together with the rotor.Type: GrantFiled: February 19, 2019Date of Patent: January 19, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventor: Kai Karikomi
-
Publication number: 20200325877Abstract: A wind turbine offshore installation method of installing a wind turbine using a semi-submersible type floating substructure includes: a step of towing the semi-submersible type floating substructure on which the wind turbine is erected to an installation target site on a sea; and a step of coupling the wind turbine and a spar type floating substructure for supporting the wind turbine on the sea at the installation target site to install the wind turbine on the sea.Type: ApplicationFiled: February 6, 2020Publication date: October 15, 2020Inventor: Kai KARIKOMI
-
Publication number: 20190301427Abstract: To enable an increase in a torque amount applied to a blade with simple and low-cost means in a natural energy type power generator. An output reinforcement device of a power generator according to an embodiment is an output reinforcement device of a power generator including a rotor that includes at least one blade driven by renewable energy and a hub attached with the blade, the output reinforcement device including a casing that has a tubular shape and disposed to surround the hub, the casing having a through-hole through which the blade is inserted and being configured to rotate together with the rotor.Type: ApplicationFiled: February 19, 2019Publication date: October 3, 2019Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventor: Kai Karikomi
-
Publication number: 20150176569Abstract: A monitoring system for a wind turbine generator comprises: a wind speed obtaining unit for obtaining a wind speed; a wind condition identifying unit for identifying a wind condition parameter which includes at least one of a wind shear or an upflow angle of a wind which acts on a rotor of the wind turbine generator based on the wind speed obtained by the wind speed obtaining unit and at least one of a power output or a pitch angle of the wind turbine generator measured upon occurrence of the wind speed; and a fatigue load calculating unit for calculating a fatigue load of a component of the wind turbine generator based on at least the wind condition parameter identified by the wind condition identifying unit and a wind turbulence intensity of the wind which acts on the rotor.Type: ApplicationFiled: February 26, 2014Publication date: June 25, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kai KARIKOMI, Toru MATSUO
-
Patent number: 8851857Abstract: Provided are a wind turbine blade that can reduce the thickness of a turbulent-flow boundary layer generated on the blade surface of a blade tip portion to prevent noise generated at a trailing edge portion effectively, as well as a wind power generator using the same. Provided is a wind turbine blade, which is a wind turbine blade having an airfoil shape in cross section, wherein an angle-of-attack decreasing portion that decreases an angle of attack during rotation at at least a predetermined rotational speed is provided over a predetermined range from a blade tip to a blade root side.Type: GrantFiled: November 19, 2007Date of Patent: October 7, 2014Assignee: Mitsubishi Heavy Industries, LtdInventors: Kentaro Hayashi, Hiroshi Nishino, Hiroyuki Hosoya, Atsushi Matsuo, Kai Karikomi
-
Patent number: 8694268Abstract: An object is to suppress reduction of energy production as much as possible while ensuring an expected lifetime. There is provided a device of adjusting a curtailment strategy for a wind turbine, the device including: a fatigue equivalent load calculation unit that calculates a fatigue equivalent load for evaluating a fatigue damage of the wind turbine in a predetermined time period by using load data of the wind turbine; and a setting value update unit that compares the fatigue equivalent load with a reference load determined by an expected lifetime of the wind turbine, and, when a difference between the fatigue equivalent load and the reference load exceeds a predetermined threshold value, updates the condition setting value for the curtailment that is currently employed according to the difference.Type: GrantFiled: July 10, 2009Date of Patent: April 8, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kai Karikomi, Shigeto Hirai, Yoshiyuki Hayashi
-
Patent number: 8359916Abstract: A method of wind tunnel measurement of airfoil, includes a step of providing a wind tunnel test apparatus. The wind tunnel test apparatus includes two walls, two supporting members, and two load measuring units. The method further includes steps of: coupling both ends of an airfoil model under test with the two supporting members, respectively; generating a flow of a fluid in the wind tunnel flow path; and measuring a load applied to the airfoil model by using the two load measuring units. A thin film member is stuck on each end of the airfoil model so that a part of the thin film member protrudes from the each end of the airfoil model along an outer circumference throughout an entire circumference. The thin film member has a strength at which the thin film member enables to endure a pressure of the fluid, and is formed of a material which is elastically deformable.Type: GrantFiled: December 9, 2010Date of Patent: January 29, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kai Karikomi, Yosuke Nakamura
-
Patent number: 8133031Abstract: The present invention proposes a lightning protection device of a windmill blade, comprising a tip receptor assembly having receptors which are mounted, in particular to, the tip end part of the blade where the blade profile becomes smaller, and having a simple structure so as to be readily assembled, and an intermediate receptor assembly having a receptor which is set at the outer surface of the blade so as to exhibit an effective countermeasure against increasing of the air pressure in the blade upon a lightning striking upon the blade, a lightening current being discharged to the ground from the receptors through connection equipment such as lead wires laid through the inside of the blade the windmill body and bypass brushes, characterized in that a base plate made of an electrically conductive material and connected thereto with the lead wires is embedded in the blade, and the receptors are secured and supported to the base plate, being exposed at the outer surface of the blade.Type: GrantFiled: December 19, 2006Date of Patent: March 13, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Shinji Arinaga, Masaaki Shibata, Nobuyasu Nakamura, Takatoshi Matsushita, Kazuhisa Tsutsumi, Takao Kuroiwa, Toshiyuki Hirano, Kai Karikomi
-
Publication number: 20110138901Abstract: A method of wind tunnel measurement of airfoil, includes a step of providing a wind tunnel test apparatus. The wind tunnel test apparatus includes two walls, two supporting members, and two load measuring units. The method further includes steps of: coupling both ends of an airfoil model under test with the two supporting members, respectively; generating a flow of a fluid in the wind tunnel flow path; and measuring a load applied to the airfoil model by using the two load measuring units. A thin film member is stuck on each end of the airfoil model so that a part of the thin film member protrudes from the each end of the airfoil model along an outer circumference throughout an entire circumference. The thin film member has a strength at which the thin film member enables to endure a pressure of the fluid, and is formed of a material which is elastically deformable.Type: ApplicationFiled: December 9, 2010Publication date: June 16, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kai KARIKOMI, Yosuke NAKAMURA
-
Publication number: 20110018271Abstract: An object is to suppress reduction of energy production as much as possible while ensuring an expected lifetime. There is provided a device of adjusting a curtailment strategy for a wind turbine, the device including: a fatigue equivalent load calculation unit that calculates a fatigue equivalent load for evaluating a fatigue damage of the wind turbine in a predetermined time period by using load data of the wind turbine; and a setting value update unit that compares the fatigue equivalent load with a reference load determined by an expected lifetime of the wind turbine, and, when a difference between the fatigue equivalent load and the reference load exceeds a predetermined threshold value, updates the condition setting value for the curtailment that is currently employed according to the difference.Type: ApplicationFiled: July 10, 2009Publication date: January 27, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kai Karikomi, Shigeto Hirai, Yoshiyuki Hayashi