Patents by Inventor Yuusuke Isono
Yuusuke Isono 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: 10526956Abstract: A turbocharger includes: a bearing portion which is provided in a turbine housing; a shaft rotatably inserted into a bearing hole of the bearing portion; an attaching member fixed to the shaft; and a valve coupled to the shaft via the attaching member and configured to open and close a flow path opened to an internal space along with rotation of the shaft. The attaching member includes: a base portion provided with an insertion hole of the shaft; and an extension portion integrally formed with the base portion and extending from the base portion in a radial direction of the shaft to thereby hold the valve. The base portion is provided at least at a part of a range of the shaft in a circumferential direction of the shaft, and protrudes more in the radial direction of the shaft than the bearing portion.Type: GrantFiled: November 28, 2016Date of Patent: January 7, 2020Assignee: IHI CorporationInventors: Yuusuke Isono, Kiyomichi Ichikawa, Atsushi Mori, Yuji Kobayashi, Kazuaki Iwata
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Patent number: 10465599Abstract: A turbocharger includes a bearing portion having an end as an inner end surface located within a turbine housing in a penetrating direction of a bearing hole; a shaft rotatably supported in the bearing hole, one end thereof located within the turbine housing and the other end thereof located outside the turbine housing; an attaching plate fixed to the shaft, including an inner facing surface facing the inner end surface in an axial direction of the shaft; and a valve coupled to the shaft via the attaching plate to open and close a flow path opened to an internal space of the turbine housing. An inner radial groove is formed in at least one of the inner end surface and the inner facing surface. The inner radial groove extends in the radial direction of the shaft to allow a part of an exhaust gas flowing within the turbine housing to flow therethrough.Type: GrantFiled: December 9, 2016Date of Patent: November 5, 2019Assignee: IHI CorporationInventors: Yuusuke Isono, Kiyomichi Ichikawa, Atsushi Mori, Yuji Kobayashi, Kazuaki Iwata
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Patent number: 10408085Abstract: A turbocharger includes: a turbine housing including an internal space formed therein; a bearing portion provided in the turbine housing; a shaft rotatably inserted into a bearing hole in a state where at least one end protrudes more to an inside of the turbine housing than the bearing portion; and a valve fixed to the shaft and configured to open and close a flow path opened to the internal space. The bearing portion includes a protrusion portion which protrudes from an inner wall of the turbine housing. The radial hole of the protrusion portion penetrates the bearing portion in a radial direction of the shaft, from the outer circumferential surface of the bearing portion to the bearing hole.Type: GrantFiled: November 28, 2016Date of Patent: September 10, 2019Assignee: IHI CorporationInventors: Yuusuke Isono, Kiyomichi Ichikawa, Atsushi Mori, Yuji Kobayashi, Kazuaki Iwata
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Publication number: 20170089256Abstract: A turbocharger includes: a bearing portion having an end as an inner end surface located within a housing (turbine housing) in a penetrating direction of a bearing hole; a shaft rotatably supported in the bearing hole, one end thereof located within the housing and the other end thereof located outside the housing; an attaching plate fixed to the shaft, including an inner facing surface facing the inner end surface in an axial direction of the shaft; and a valve coupled to the shaft via the attaching plate to open and close a flow path opened to an internal space of the housing. An inner radial groove is formed in one or both of the inner end surface and the inner facing surface. The inner radial groove extends in the radial direction of the shaft to allow a part of an exhaust gas flowing within the housing to flow therethrough.Type: ApplicationFiled: December 9, 2016Publication date: March 30, 2017Applicant: IHI CorporationInventors: Yuusuke ISONO, Kiyomichi ICHIKAWA, Atsushi MORI, Yuji KOBAYASHI, Kazuaki IWATA
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Publication number: 20170074114Abstract: A turbocharger includes: a bearing portion which is provided in a turbine housing; a shaft rotatably inserted into a bearing hole of the bearing portion; an attaching member fixed to the shaft; and a valve coupled to the shaft via the attaching member and configured to open and close a flow path opened to an internal space along with rotation of the shaft. The attaching member includes: a base portion provided with an insertion hole of the shaft; and an extension portion integrally formed with the base portion and extending from the base portion in a radial direction of the shaft to thereby hold the valve. The base portion is provided at least at a part of a range of the shaft in a circumferential direction of the shaft, and protrudes more in the radial direction of the shaft than the bearing portion.Type: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Applicant: IHI CorporationInventors: Yuusuke ISONO, Kiyomichi ICHIKAWA, Atsushi MORI, Yuji KOBAYASHI, Kazuaki IWATA
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Publication number: 20170074115Abstract: A turbocharger includes: a turbine housing including an internal space formed therein; a bearing portion provided in the turbine housing; a shaft rotatably inserted into a bearing hole in a state where at least one end protrudes more to an inside of the turbine housing than the bearing portion; and a valve fixed to the shaft and configured to open and close a flow path opened to the internal space. The bearing portion includes a protrusion portion which protrudes from an inner wall of the turbine housing. The radial hole of the protrusion portion penetrates the bearing portion in a radial direction of the shaft, from the outer circumferential surface of the bearing portion to the bearing hole.Type: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Applicant: IHI CorporationInventors: Yuusuke ISONO, Kiyomichi ICHIKAWA, Atsushi MORI, Yuji KOBAYASHI, Kazuaki IWATA
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Patent number: 9494163Abstract: A turbocharger includes: a suction passage into which a fluid is sucked from outside of a compressor housing; an outlet passage that guides the fluid, which is sucked through the suction passage and compressed, to the outside of the compressor housing; an opening portion formed in a wall surface of the compressor housing and serving as an opening of the suction passage; a return passage which makes the outlet passage and the suction passage communicate with each other through the opening portion, thereby returning the compressed fluid from the outlet passage to the suction passage; and an air bypass valve which opens and closes the opening portion. A level of a bottom surface of the return passage located on a vertically lower side therein declines from the outlet passage toward the suction passage without ever rising.Type: GrantFiled: November 5, 2013Date of Patent: November 15, 2016Assignee: IHI CorporationInventors: Yuusuke Isono, Kazuaki Iwata, Atsushi Mori
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Publication number: 20150267606Abstract: A turbocharger includes: inlet and discharge passages to guide a fluid to a turbine wheel and discharge the fluid therefrom; a bypass passage communicating between the inlet passage and the discharge passage to bypassing the turbine wheel; a seat surface facing the discharge passage, in which an end of the bypass passage opens; and a mechanism to open and close the end of the bypass passage. The mechanism includes: a stem turnably supported by the turbine housing; and a valve body to open and close the end of the bypass passage. The seat surface tilts from a plane perpendicular to a turbine shaft in a way that a side on which the stem is disposed is located farther from a discharge port of the discharge passage than an opposite side of the end of the bypass passage from the side on which the stem is disposed.Type: ApplicationFiled: June 3, 2015Publication date: September 24, 2015Applicant: IHI CORPORATIONInventors: Kazuaki IWATA, Atsushi Mori, Yuusuke Isono
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Publication number: 20140140814Abstract: A turbocharger includes: a suction passage into which a fluid is sucked from outside of a compressor housing; an outlet passage that guides the fluid, which is sucked through the suction passage and compressed, to the outside of the compressor housing; an opening portion formed in a wall surface of the compressor housing and serving as an opening of the suction passage; a return passage which makes the outlet passage and the suction passage communicate with each other through the opening portion, thereby returning the compressed fluid from the outlet passage to the suction passage; and an air bypass valve which opens and closes the opening portion. A level of a bottom surface of the return passage located on a vertically lower side therein declines from the outlet passage toward the suction passage without ever rising.Type: ApplicationFiled: November 5, 2013Publication date: May 22, 2014Applicant: IHI CorporationInventors: Yuusuke Isono, Kazuaki Iwata, Atsushi Mori