Patents by Inventor Hirotaka KURASHIMA
Hirotaka KURASHIMA 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: 11946390Abstract: Provided is a rotor blade configured to be implanted in a disc of a rotating body, the rotor blade including a blade root, wherein in a cross-sectional shape of the blade root, the blade root includes at least one stage of protruding parts protruding toward opposite sides with respect to a direction containing a circumferential component, the protruding parts being configured to lock the blade root to the disc, each of the protruding parts has a contact surface configured to come into contact with the disc and inclined so as to extend toward a center part of the blade root from radially inside to radially outside, and each of the protruding parts has a non-contact surface configured not to come into contact with the disc and inclined so as to extend toward the center part of the blade root from the radially inside to the radially outside.Type: GrantFiled: June 25, 2021Date of Patent: April 2, 2024Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hirotaka Kurashima, Hirokazu Matsuda, Ryoji Tamai, Ryozo Tanaka
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Patent number: 11873992Abstract: A combustor liner used for a gas turbine combustor and forming a combustion chamber includes: an outer side wall made of metal; a panel attached to an inner side of the outer side wall and made of a ceramic matrix composite material, the panel including a panel body facing the combustion chamber, and a connection piece rising from an exterior surface of the panel body at a side portion of the panel body and protruding in a lateral direction; and a connection unit configured to connect the panel to the outer side wall, the connection unit including an elastic member configured to bias at least one of the outer side wall and the connection piece, and a fixation member made of metal and configured to fix at least one of the connection piece and the elastic member to the outer side wall.Type: GrantFiled: November 28, 2022Date of Patent: January 16, 2024Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Masayoshi Kobayashi, Takeo Oda, Takeo Nishiura, Tomoko Tsuru, Takaya Hamamoto, Takeshi Takagi, Osamu Hisamatsu, Hirotaka Kurashima
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Publication number: 20230093427Abstract: A combustor liner used for a gas turbine combustor and forming a combustion chamber includes: an outer side wall made of metal; a panel attached to an inner side of the outer side wall and made of a ceramic matrix composite material, the panel including a panel body facing the combustion chamber, and a connection piece rising from an exterior surface of the panel body at a side portion of the panel body and protruding in a lateral direction; and a connection unit configured to connect the panel to the outer side wall, the connection unit including an elastic member configured to bias at least one of the outer side wall and the connection piece, and a fixation member made of metal and configured to fix at least one of the connection piece and the elastic member to the outer side wall.Type: ApplicationFiled: November 28, 2022Publication date: March 23, 2023Inventors: Masayoshi KOBAYASHI, Takeo ODA, Takeo NISHIURA, Tomoko TSURU, Takaya HAMAMOTO, Takeshi TAKAGI, HISAMATSU, Hirotaka KURASHIMA
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Patent number: 11543132Abstract: A combustor liner used for a gas turbine combustor and forming a combustion chamber includes: an outer side wall made of metal; a panel attached to an inner side of the outer side wall and made of a ceramic matrix composite material, the panel including a panel body facing the combustion chamber, and a connection piece rising from an exterior surface of the panel body at a side portion of the panel body and protruding in a lateral direction; and a connection unit configured to connect the panel to the outer side wall, the connection unit including an elastic member configured to bias at least one of the outer side wall and the connection piece, and a fixation member made of metal and configured to fix at least one of the connection piece and the elastic member to the outer side wall.Type: GrantFiled: May 9, 2019Date of Patent: January 3, 2023Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Masayoshi Kobayashi, Takeo Oda, Takeo Nishiura, Tomoko Tsuru, Takaya Hamamoto, Takeshi Takagi, Osamu Hisamatsu, Hirotaka Kurashima
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Publication number: 20210324750Abstract: Provided is a rotor blade configured to be implanted in a disc of a rotating body, the rotor blade including a blade root, wherein in a cross-sectional shape of the blade root, the blade root includes at least one stage of protruding parts protruding toward opposite sides with respect to a direction containing a circumferential component, the protruding parts being configured to lock the blade root to the disc, each of the protruding parts has a contact surface configured to come into contact with the disc and inclined so as to extend toward a center part of the blade root from radially inside to radially outside, and each of the protruding parts has a non-contact surface configured not to come into contact with the disc and inclined so as to extend toward the center part of the blade root from the radially inside to the radially outside.Type: ApplicationFiled: June 25, 2021Publication date: October 21, 2021Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Hirotaka KURASHIMA, Hirokazu MATSUDA, Ryoji TAMAI, Ryozo TANAKA
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Publication number: 20190264923Abstract: A combustor liner used for a gas turbine combustor and forming a combustion chamber includes: an outer side wall made of metal; a panel attached to an inner side of the outer side wall and made of a ceramic matrix composite material, the panel including a panel body facing the combustion chamber, and a connection piece rising from an exterior surface of the panel body at a side portion of the panel body and protruding in a lateral direction; and a connection unit configured to connect the panel to the outer side wall, the connection unit including an elastic member configured to bias at least one of the outer side wall and the connection piece, and a fixation member made of metal and configured to fix at least one of the connection piece and the elastic member to the outer side wall.Type: ApplicationFiled: May 9, 2019Publication date: August 29, 2019Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Masayoshi KOBAYASHI, Takeo ODA, Takeo NISHIURA, Tomoko TSURU, Takaya HAMAMOTO, Takeshi TAKAGI, Osamu HISAMATSU, Hirotaka KURASHIMA