Patents by Inventor Ryosuke MITO
Ryosuke MITO 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).
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Patent number: 11746694Abstract: 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.Type: GrantFiled: August 19, 2020Date of Patent: September 5, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Chihiro Myoren, Ryosuke Mito, Daisuke Morita
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Publication number: 20220282666Abstract: 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.Type: ApplicationFiled: August 19, 2020Publication date: September 8, 2022Inventors: Chihiro MYOREN, Ryosuke MITO, Daisuke MORITA
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Patent number: 11408307Abstract: The present invention includes a flow guide (17) that is disposed in a space (15A) formed in a casing, on an outlet side of a diffuser (14), the flow guide including: a first guide surface (17a) that is disposed on a rotor side provided to a compressor and a gas turbine, and that delays turning of a flow direction of a compressed gas which has passed through the diffuser (14); and a second guide surface (17b) that is disposed outside the first guide surface (17a) and that turns the flow direction of the compressed gas which has passed through the diffuser (14).Type: GrantFiled: March 30, 2018Date of Patent: August 9, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Ryosuke Mito, Hidetaka Okui, Shinya Hashimoto
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Patent number: 11300135Abstract: A variable stator vane includes: a stator vane body which includes a radial end surface forming a clearance between the radial end surface and an outer peripheral surface of an inner casing; a rotation shaft which is rotatable so that an angle of the stator vane body with respect to a flow direction of a main stream of a working fluid is varied and which is connected to the radial end surface; and a curved surface portion which is formed on a vane surface adjacent to the radial end surface protruding radially outward from a circumference of the rotation shaft. A curvature radius of the curved surface portion is gradually decreased with distance away from the rotation shaft.Type: GrantFiled: December 5, 2018Date of Patent: April 12, 2022Assignee: MITSUBISHI POWER, LTD.Inventors: Satoshi Yamashita, Ryosuke Mito
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Patent number: 11168704Abstract: A stator vane body which is disposed in a flow path through which a working fluid flows and by which a clearance is formed between the stator vane body and an inner casing; a rotary shaft which is configured to rotate such that an angle of the stator vane body with respect to a flow direction of a main flow of the working fluid is varied; and a connection part which is configured to connect the stator vane body to the rotary shaft are provided. The connection part includes a first guide surface which is configured to guide the working fluid in a direction in which a flow direction of a leakage flow of the working fluid in the clearance which has flowed into toward a leading edge side of the stator vane body is directed in a flow direction of the main flow.Type: GrantFiled: March 30, 2018Date of Patent: November 9, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Ryosuke Mito, Hidetaka Okui
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Publication number: 20210115946Abstract: A stator vane body which is disposed in a flow path through which a working fluid flows and by which a clearance is formed between the stator vane body and an inner casing; a rotary shaft which is configured to rotate such that an angle of the stator vane body with respect to a flow direction of a main flow of the working fluid is varied; and a connection part which is configured to connect the stator vane body to the rotary shaft are provided. The connection part includes a first guide surface which is configured to guide the working fluid in a direction in which a flow direction of a leakage flow of the working fluid in the clearance which has flowed into toward a leading edge side of the stator vane body is directed in a flow direction of the main flow.Type: ApplicationFiled: March 30, 2018Publication date: April 22, 2021Inventors: Ryosuke MITO, Hidetaka OKUI
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Publication number: 20200378399Abstract: A variable stator vane includes: a stator vane body which includes a radial end surface forming a clearance between the radial end surface and an outer peripheral surface of an inner casing; a rotation shaft which is rotatable so that an angle of the stator vane body with respect to a flow direction of a main stream of a working fluid is varied and which is connected to the radial end surface; and a curved surface portion which is formed on a vane surface adjacent to the radial end surface protruding radially outward from a circumference of the rotation shaft. A curvature radius of the curved surface portion is gradually decreased with distance away from the rotation shaft.Type: ApplicationFiled: December 5, 2018Publication date: December 3, 2020Inventors: Satoshi YAMASHITA, Ryosuke MITO
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Patent number: 10738892Abstract: A rotary machine includes a seal device capable of restricting a flow of a fluid in a clearance between a stationary member and a rotational member. The seal device includes a pressure loss element mounted to the stationary member, a first non-contact type seal protruding from the rotational member toward the pressure loss element and facing the pressure loss element via a first gap, and a second non-contact type seal protruding from the stationary member toward the rotational member, facing the rotational member via a second gap, and being positioned on one side of the pressure loss element in a flow direction of the fluid. The seal device also includes a contact type seal protruding from the stationary member toward the rotational member and being disposed downstream of the pressure loss element and the second non-contact type seal in the flow direction of the fluid.Type: GrantFiled: November 20, 2015Date of Patent: August 11, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Masato Araki, Yoshiyuki Okabe, Ryosuke Mito, Keita Takamura, Shinya Hashimoto
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Publication number: 20200056508Abstract: The present invention includes a flow guide (17) that is disposed in a space (15A) formed in a casing, on an outlet side of a diffuser (14), the flow guide including: a first guide surface (17a) that is disposed on a rotor side provided to a compressor and a gas turbine, and that delays turning of a flow direction of a compressed gas which has passed through the diffuser (14); and a second guide surface (17b) that is disposed outside the first guide surface (17a) and that turns the flow direction of the compressed gas which has passed through the diffuser (14).Type: ApplicationFiled: March 30, 2018Publication date: February 20, 2020Inventors: Ryosuke MITO, Hidetaka OKUI, Shinya HASHIMOTO
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Publication number: 20190309759Abstract: A tip portion of a compressor blade faces a casing with a clearance therebetween. The tip portion has an upstream-side region including a blade leading edge, and a downstream-side region including a blade trailing edge. The upstream-side region has a small clearance formation portion including a part in which the clearance is a minimum in the tip portion. The downstream-side region forms a large clearance formation portion having a clearance larger than a clearance of the small clearance formation portion throughout the entire region of the downstream-side region.Type: ApplicationFiled: November 17, 2017Publication date: October 10, 2019Inventors: Thomas WALKER, Ryosuke MITO
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Publication number: 20180266436Abstract: The present invention provides a rotary machine intake casing which, by using a simple configuration, makes it possible to reduce asymmetry between the flow speed of air flowing in a forward direction relative to the direction of rotation of a rotating shaft of a compressor and the flow speed of air flowing in the opposite direction.Type: ApplicationFiled: June 10, 2015Publication date: September 20, 2018Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Ryosuke SAITO, Xuelin GAO, Ryosuke MITO, Satoru YOSHIDA
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Publication number: 20170370476Abstract: A rotary machine includes a seal device capable of restricting a flow of a fluid in a clearance between a stationary member and a rotational member. The seal device includes a pressure loss element mounted to the stationary member, a first non-contact type seal protruding from the rotational member toward the pressure loss element and facing the pressure loss element via a first gap, and a second non-contact type seal protruding from the stationary member toward the rotational member, facing the rotational member via a second gap, and being positioned on one side of the pressure loss element in a flow direction of the fluid. The seal device also includes a contact type seal protruding from the stationary member toward the rotational member and being disposed downstream of the pressure loss element and the second non-contact type seal in the flow direction of the fluid.Type: ApplicationFiled: November 20, 2015Publication date: December 28, 2017Inventors: Masato ARAKI, Yoshiyuki OKABE, Ryosuke MITO, Keita TAKAMURA, Shinya HASHIMOTO