Patents by Inventor Shu Fujimoto

Shu Fujimoto 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: 20220034230
    Abstract: The film cooling structure includes a wall part and a cooling hole inclined such that an outlet is positioned rearward of an inlet. The cooling hole includes a straight-tube part and a diffuser part. The diffuser part includes a flat surface, a curved surface curved rearward and forming, together with the flat surface, a semicircular or semi-elliptical channel cross section larger than that of the straight-tube part, a first section and a second section extending from the first section toward the outlet. In the first section, an area of the channel cross section increases as it approaches the outlet. In the second section, the area of the channel cross section increases as it approaches the outlet at an increase rate smaller than that of the first section or is constant. The diffuser part has a width equal to or twice greater than the depth of the diffuser part.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Applicant: IHI Corporation
    Inventors: Ryo IKEHARA, Shu FUJIMOTO, Yoji OKITA, Seiji KUBO, Hitoshi HATTORI
  • Publication number: 20220018261
    Abstract: The film cooling structure includes a wall part extending forward and rearward, and a cooling hole including a tubular inner peripheral surface and inclined such that an outlet is positioned rearward of an inlet. The cooling hole includes a throat having a minimum cross section, and a diffuser part extending from the throat to the outlet. The diffuser part includes a channel cross section expanding rearward and along the wall part as it approaches the outlet. The inner peripheral surface of the cooling hole includes a flat portion extending in a direction perpendicular to the cooling hole and along the wall part at a front part of the inner peripheral surface, and a convex portion projecting from a rear part of the inner peripheral surface toward the flat portion, extending in parallel with the flat portion, and forming the throat between the flat portion and the convex portion.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Applicant: IHI Corporation
    Inventors: Seiji KUBO, Hitoshi HATTORI, Yoji OKITA, Shu FUJIMOTO, Ryo IKEHARA
  • Publication number: 20190073830
    Abstract: A method providing a virtual space according to at least one embodiment of this disclosure includes defining the virtual space, wherein the virtual space is associated with a first avatar object and a first virtual monitor object, and wherein the first avatar object is associated with a first user. The method further includes storing in a memory video content generated by photographing an event in real space. The method further includes storing in the memory information on a first virtual physical object associated with the video content in the memory. The method further includes reading the video content from the memory and displaying the read video content on the first virtual monitor object. The method further includes determining a first field of view of the first user in the virtual space based on a first virtual camera associated with the first avatar object. The method further includes displaying a first video corresponding to the first field of view on a head-mounted device of the first user.
    Type: Application
    Filed: September 3, 2018
    Publication date: March 7, 2019
    Inventors: Shu FUJIMOTO, Seiji SATAKE
  • Patent number: 9957812
    Abstract: The present invention relates to an impingement cooling mechanism (1) that ejects a cooling gas (G) toward a cooling target (2) from a plurality of impingement holes (4) formed in an opposing member (3) that is arranged opposite the cooling target (2). Turbulent flow promoting portions (6) are provided in the flow path of a crossflow (CF), which is a flow that is formed by the cooling gas (G) after being ejected from the impingement holes (4). The turbulent flow promoting portions (6) are constituted so that a turbulent flow is promoted from the upstream side to the downstream side of the crossflow (CF).
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: May 1, 2018
    Assignee: IHI CORPORATION
    Inventors: Yoji Okita, Shu Fujimoto, Chiyuki Nakamata
  • Patent number: 9771809
    Abstract: The present invention relates to an impingement cooling mechanism that ejects a cooling gas toward a cooling target (2) from a plurality of impingement holes (3b) formed in a facing member (3) that is disposed facing the cooling target (2). Blocking members (5) that block a crossflow (CF), which is a flow formed by the cooling gas after being ejected from the impingement holes (3b), are installed on at least the upstream side of the crossflow (CF) with respect to at least a portion of the impingement holes (3b). Turbulent flow promoting portions (6) are provided in the flow path (R) of the crossflow (CF) regulated by the blocking members (5).
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: September 26, 2017
    Assignee: IHI CORPORATION
    Inventors: Shu Fujimoto, Chiyuki Nakamata, Yoji Okita
  • Patent number: 9376919
    Abstract: A turbine blade that is used in a turbine of a gas turbine engine and cooled by cooling air, and includes a cooling channel that is formed within the turbine blade and in which the cooling air flows, plural bottomed recesses that are formed on a blade surface of the turbine blade and of which each downstream-side inner wall is inclined, and an ejection hole that is formed on each bottom of the plural bottomed recesses and communicates with the cooling channel to eject the cooling air. The ejection hole is formed so that a central line of the ejection hole extends along the downstream-side inner wall. The above turbine blade can improve cooling without reducing efficiency.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: June 28, 2016
    Assignee: IHI Corporation
    Inventor: Shu Fujimoto
  • Publication number: 20160003549
    Abstract: A cooling promoting structure in which a first flow path walls includes a first collision surface which collides with cooling gas flowing through a first flow path, a second flow path walls includes a second collision surface which collides with the cooling gas flowing through a second flow path, and the first flow path and the second flow path are connected to each other via inflow openings at a location where the first collision surface and the second collision surface are disposed.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 7, 2016
    Inventors: Shu FUJIMOTO, Chiyuki NAKAMATA, Yoji OKITA
  • Patent number: 9194236
    Abstract: Disclosed is a turbine blade capable of being cooled by a coolant gas supplied to a hollow region, wherein a plurality of meandering flow paths that guide the coolant gas between the suction wall surface and the pressure wall surface while causing the coolant gas to repeatedly meander are continuously arranged from the hub side toward the tip side of the turbine blade, and the meandering flow paths adjacent to each other cause the coolant gas to meander in different repetitive patterns.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: November 24, 2015
    Assignee: IHI CORPORATION
    Inventors: Chiyuki Nakamata, Shu Fujimoto
  • Publication number: 20140290257
    Abstract: The present invention relates to an impingement cooling mechanism (1) that ejects a cooling gas (G) toward a cooling target (2) from a plurality of impingement holes (4) formed in an opposing member (3) that is arranged opposite the cooling target (2). Turbulent flow promoting portions (6) are provided in the flow path of a crossflow (CF), which is a flow that is formed by the cooling gas (G) after being ejected from the impingement holes (4). The turbulent flow promoting portions (6) are constituted so that a turbulent flow is promoted from the upstream side to the downstream side of the crossflow (CF).
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Yoji OKITA, Shu FUJIMOTO, Chiyuki NAKAMATA
  • Publication number: 20140290256
    Abstract: The present invention relates to an impingement cooling mechanism that ejects a cooling gas toward a cooling target (2) from a plurality of impingement holes (3b) formed in a facing member (3) that is disposed facing the cooling target (2). Blocking members (5) that block a crossflow (CF), which is a flow formed by the cooling gas after being ejected from the impingement holes (3b), are installed on at least the upstream side of the crossflow (CF) with respect to at least a portion of the impingement holes (3b). Turbulent flow promoting portions (6) are provided in the flow path (R) of the crossflow (CF) regulated by the blocking members (5).
    Type: Application
    Filed: June 11, 2014
    Publication date: October 2, 2014
    Inventors: Shu FUJIMOTO, Chiyuki NAKAMATA, Yoji OKITA
  • Publication number: 20130108471
    Abstract: A turbine blade that is used in a turbine of a gas turbine engine and cooled by cooling air, and includes a cooling channel that is formed within the turbine blade and in which the cooling air flows, plural bottomed recesses that are formed on a blade surface of the turbine blade and of which each downstream-side inner wall is inclined, and an ejection hole that is formed on each bottom of the plural bottomed recesses and communicates with the cooling channel to eject the cooling air. The ejection hole is formed so that a central line of the ejection hole extends along the downstream-side inner wall. The above turbine blade can improve cooling without reducing efficiency.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 2, 2013
    Applicant: IHI CORPORATION
    Inventor: Shu Fujimoto
  • Publication number: 20120201694
    Abstract: Disclosed is a turbine blade capable of being cooled by a coolant gas supplied to a hollow region, wherein a plurality of meandering flow paths that guide the coolant gas between the suction wall surface and the pressure wall surface while causing the coolant gas to repeatedly meander are continuously arranged from the hub side toward the tip side of the turbine blade, and the meandering flow paths adjacent to each other cause the coolant gas to meander in different repetitive patterns.
    Type: Application
    Filed: October 7, 2010
    Publication date: August 9, 2012
    Inventors: Chiyuki Nakamata, Shu Fujimoto
  • Patent number: 8172505
    Abstract: In this cooling structure, a cooling flow path, which is meandering around a flow direction of a high temperature combustion gas, is provided in a structural body. The cooling flow path has an inflow path for a cooling air formed inside of the structural body; at least one straight flow path provided with intervals with respect to an axial line; and a turning flow path for communicating the end portions of the inflow path with the straight flow path or communicating with the end portions of the straight flow paths one after another.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: May 8, 2012
    Assignees: IHI Corporation, Japan Aerospace Exploration Agency
    Inventors: Shu Fujimoto, Yoshitaka Fukuyama, Takashi Yamane, Masahiro Matsushita, Toyoaki Yoshida
  • Patent number: 8137056
    Abstract: An impingement cooled structure includes a plurality of shroud members disposed in a circumferential direction to constitute a ring-shaped shroud surrounding a hot gas stream, and a shroud cover mounted on radial outside faces of the shroud members to form a cavity therebetween. The shroud cover has a first impingement cooling hole which communicates with the cavity and allows cooling air to be jetted to an inside thereof so as to cool an inner surface of the cavity by impingement. The shroud members each has a hole fin. The hole fin divides the cavity into a plurality of sub-cavities. Further, the hole fin has a second impingement cooling hole which allows the cooling air having flowed through the first impingement cooling hole to be jetted obliquely toward a bottom surface of the sub-cavity adjacent thereto.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: March 20, 2012
    Assignees: IHI Corporation, Japan Aerospace Exploration Agency
    Inventors: Shu Fujimoto, Youji Ohkita, Yoshitaka Fukuyama, Takashi Yamane, Masahiro Matsushita, Toyoaki Yoshida
  • Publication number: 20090126335
    Abstract: In this cooling structure, a cooling flow path, which is meandering around a flow direction of a high temperature combustion gas, is provided in a structural body. The cooling flow path has an inflow path for a cooling air formed inside of the structural body; at least one straight flow path provided with intervals with respect to an axial line; and a turning flow path for communicating the end portions of the inflow path with the straight flow path or communicating with the end portions of the straight flow paths one after another.
    Type: Application
    Filed: February 7, 2007
    Publication date: May 21, 2009
    Inventors: Shu Fujimoto, Yoshitaka Fukuyama, Takashi Yamane, Masahiro Matsushita, Toyoaki Yoshida
  • Publication number: 20090035125
    Abstract: An impingement cooled structure includes a plurality of shroud members disposed in a circumferential direction to constitute a ring-shaped shroud surrounding a hot gas stream, and a shroud cover mounted on radial outside faces of the shroud members to form a cavity therebetween. The shroud cover has a first impingement cooling hole which communicates with the cavity and allows cooling air to be jetted to an inside thereof so as to cool an inner surface of the cavity by impingement. The shroud members each has a hole fin. The hole fin divides the cavity into a plurality of sub-cavities. Further, the hole fin has a second impingement cooling hole which allows the cooling air having flowed through the first impingement cooling hole to be jetted obliquely toward a bottom surface of the sub-cavity adjacent thereto.
    Type: Application
    Filed: February 26, 2007
    Publication date: February 5, 2009
    Inventors: Shu Fujimoto, Youji Ohkita, Yoshitaka Fukuyama, Takashi Yamane, Masahiro Matsushita, Toyoaki Yoshida