Patents by Inventor Tsuyoshi Uesugi
Tsuyoshi Uesugi 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: 11492922Abstract: A turbocharger includes a turbine wheel, a turbine housing, a bearing housing, a compressor housing, a seal plate, a variable nozzle mechanism, a penetrating shaft, and a spring member. The variable nozzle mechanism is located within the turbine housing, and adjusts the amount of exhaust gas that flows toward the turbine wheel. The penetrating shaft extends through the bearing housing and is connected to the variable nozzle mechanism. The spring member pushes out the penetrating shaft toward the compressor housing. The bearing housing and the seal plate define a cooling chamber through which coolant flows. The spring member is located in the cooling chamber.Type: GrantFiled: November 5, 2021Date of Patent: November 8, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takashi Tsukiyama, Tsuyoshi Uesugi
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Patent number: 11434818Abstract: A variable nozzle unit includes a first plate, a second plate, a plurality of nozzle vanes each having a rotary shaft portion and a vane, a plurality of vane arms, and a unison ring. Each vane arm includes an engaging portion. The plurality of vane arms includes at least one extension arm. The extension arm includes an extension portion that has a shape extending from the engaging portion toward the second plate. The second plate has a receiving portion that receives the extension portion. The receiving portion includes a pair of contact walls, wherein the contact walls are brought into contact with the extension portion respectively at a position where each of the nozzle vanes maximizes the flow passage area of the exhaust air passage and at a position where the nozzle vane minimizes the flow passage area of the exhaust air passage.Type: GrantFiled: January 16, 2020Date of Patent: September 6, 2022Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Tsuyoshi Uesugi
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Publication number: 20220162960Abstract: A variable nozzle unit includes a first plate, a second plate, a plurality of nozzle vanes each having a rotary shaft portion and a vane, a plurality of vane arms, and a unison ring. Each vane arm includes an engaging portion. The plurality of vane arms includes at least one extension arm. The extension arm includes an extension portion that has a shape extending from the engaging portion toward the second plate. The second plate has a receiving portion that receives the extension portion. The receiving portion includes a pair of contact walls, wherein the contact walls are brought into contact with the extension portion respectively at a position where each of the nozzle vanes maximizes the flow passage area of the exhaust air passage and at a position where the nozzle vane minimizes the flow passage area of the exhaust air passage.Type: ApplicationFiled: January 16, 2020Publication date: May 26, 2022Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: TSUYOSHI UESUGI
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Publication number: 20220145773Abstract: A turbocharger includes a turbine wheel, a turbine housing, a bearing housing, a compressor housing, a seal plate, a variable nozzle mechanism, a penetrating shaft, and a spring member. The variable nozzle mechanism is located within the turbine housing, and adjusts the amount of exhaust gas that flows toward the turbine wheel. The penetrating shaft extends through the bearing housing and is connected to the variable nozzle mechanism. The spring member pushes out the penetrating shaft toward the compressor housing. The bearing housing and the seal plate define a cooling chamber through which coolant flows. The spring member is located in the cooling chamber.Type: ApplicationFiled: November 5, 2021Publication date: May 12, 2022Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takashi TSUKIYAMA, Tsuyoshi UESUGI
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Patent number: 11326475Abstract: A turbocharger includes a compressor housing, a turbine housing, a bearing housing, a variable nozzle unit, and a fixing member. The variable nozzle unit includes a first plate, a second plate, a plurality of nozzle vanes, and an attitude changing mechanism. The fixing member includes an engagement portion that is engaged with at least one of the first plate and the second plate, a through shaft portion shaped to extend through the bearing housing toward the compressor housing, and a fixing portion that fixes an end portion of the through shaft portion on the compressor housing side to the hearing housing.Type: GrantFiled: October 25, 2019Date of Patent: May 10, 2022Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi Uesugi, Takashi Tsukiyama
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Publication number: 20210381471Abstract: A turbocharger includes a compressor housing, a turbine housing, a bearing housing, a variable nozzle unit, and a fixing member. The variable nozzle unit includes a first plate, a second plate, a plurality of nozzle vanes, and an attitude changing mechanism. The fixing member includes an engagement portion that is engaged with at least one of the first plate and the second plate, a through shaft portion shaped to extend through the bearing housing toward the compressor housing, and a fixing portion that fixes an end portion of the through shaft portion on the compressor housing side to the hearing housing.Type: ApplicationFiled: October 25, 2019Publication date: December 9, 2021Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi UESUGI, Takashi TSUKIYAMA
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Patent number: 11162386Abstract: A turbocharger includes: a shaft connecting a compressor wheel and a turbine wheel; a thrust collar rotating together with the shaft; a thrust bearing holding the thrust collar for rotation; and a bearing housing holding the thrust bearing, wherein the bearing housing includes: an oil supply passage for supplying oil for lubrication to the thrust bearing; an oil discharge passage from which the oil supplied to the thrust bearing is discharged; a wall portion facing the thrust collar; and a groove portion formed in the wall portion and extending from the thrust collar toward a discharge port of the oil discharge passage.Type: GrantFiled: June 4, 2019Date of Patent: November 2, 2021Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TAIHO KOGYO CO., LTD.Inventors: Haruto Ura, Daisuke Terui, Keiichi Ohta, Tsuyoshi Uesugi
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Patent number: 10570810Abstract: A vehicle forced-induction device includes a first exhaust turbine type forced-induction unit and a second exhaust turbine type forced-induction unit. The first forced-induction unit includes an outlet pipe. The outlet pipe includes a first tubular portion and an annular first flange. The second forced-induction unit includes an inlet pipe. The inlet pipe includes a second tubular portion and an annular second flange. The forced-induction device includes a fastener that includes an annular groove. The annular groove has a shape in which a width of the annular groove decreases toward a groove bottom. The fastener is wound around the first and second flanges along a circumference of the first and the second flanges, thereby housing the first and second flanges in the annular groove. The fastener fastens the first and second flanges to urge the first and second flanges toward each other.Type: GrantFiled: September 26, 2017Date of Patent: February 25, 2020Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN TAKAOKA CO., LTD.Inventors: Takashi Tsukiyama, Haruto Ura, Tsuyoshi Uesugi, Daisuke Terui, Akihiro Hosono, Ryuta Kawazoe
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Publication number: 20190390713Abstract: A turbocharger includes: a shaft connecting a compressor wheel and a turbine wheel; a thrust collar rotating together with the shaft; a thrust bearing holding the thrust collar for rotation; and a bearing housing holding the thrust bearing, wherein the bearing housing includes: an oil supply passage for supplying oil for lubrication to the thrust bearing; an oil discharge passage from which the oil supplied to the thrust bearing is discharged; a wall portion facing the thrust collar; and a groove portion formed in the wall portion and extending from the thrust collar toward a discharge port of the oil discharge passage.Type: ApplicationFiled: June 4, 2019Publication date: December 26, 2019Inventors: Haruto Ura, Daisuke Terui, Keiichi Ohta, Tsuyoshi Uesugi
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Patent number: 10436216Abstract: A turbocharger includes a cooling passage. The cooling passage is arranged along a diffuser surface, which faces a diffuser passage in a compressor housing member. The compressor housing member is constituted by combining a first piece, a second piece, and a third piece, which are produced by die casting or the like. The cooling passage is defined by assembling the first piece and the second piece to each other.Type: GrantFiled: March 16, 2016Date of Patent: October 8, 2019Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi Uesugi, Koichi Yonezawa
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Publication number: 20190226496Abstract: A turbocharger includes a compressor housing, a compressor impeller, a diffuser passage, a diffuser surface, a cooling passage, and a return passage. The diffuser surface is a part of the compressor housing and is a wall surface of the compressor housing that faces the diffuser passage. A part of an intake gas returns through the return passage to an upstream side of the compressor impeller in a flow direction of the intake gas in the compressor housing. A passage forming member is attached to the compressor housing, and cooperates with the compressor housing to form the return passage. The compressor housing has an insertion recess that has a circular shape. The insertion recess receives an insertion portion that is a part of the passage forming member and has a cylindrical shape. The cooling passage is formed by the insertion recess and the insertion portion inserted into the insertion recess.Type: ApplicationFiled: January 21, 2019Publication date: July 25, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tatsuya ARAKAWA, Tsuyoshi UESUGI, Shota TANAKA
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Publication number: 20190226393Abstract: A turbocharger includes a bearing housing, a compressor housing connected to the bearing housing via a seal plate, a compressor impeller, a diffuser passage, a diffuser surface, and a cooling passage. The bearing housing has a first facing surface, and a first extending surface that is formed continuously with the first facing surface. The seal plate has a second facing surface that faces the first facing surface, and a second extending surface that is formed continuously with the second facing surface. The second extending surface faces the first extending surface in a radial direction of the impeller shaft. The cooling passage is defined by the first facing surface, the first extending surface, the second facing surface, and the second extending surface.Type: ApplicationFiled: January 21, 2019Publication date: July 25, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tatsuya ARAKAWA, Tsuyoshi UESUGI, Keita KUROSU, Yosuke MEZAKI
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Patent number: 10161305Abstract: A circular ring-shaped shroud plate is arranged between a scroll passage and a turbine chamber. The shroud plate has a through-hole that penetrates therethrough in a direction along an axis of a turbine shaft. A variable nozzle is supported in an openable/closable manner on the shroud plate by a shaft inserted through the through-hole. A gap between the shroud plate and a turbine housing in the direction along the axis is partitioned into a first space that communicates with an outlet of exhaust gas that faces the through-hole and is provided upstream of a turbine wheel with respect to the flow of exhaust gas, and a second space that communicates with the scroll passage, by a disc spring that is so arranged as to surround the turbine wheel.Type: GrantFiled: November 13, 2012Date of Patent: December 25, 2018Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventors: Hiroaki Ikegami, Tsuyoshi Uesugi
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Patent number: 10107188Abstract: A forced induction apparatus for an engine includes a first forced induction device including a first bearing and a first oil passage that passes by the first bearing and a second forced induction device including a second bearing, a second oil passage that passes by the second bearing, and a drain passage that is in communication with the first oil passage. The second forced induction device is located below the first forced induction device, and the drain passage receives oil from the first oil passage and discharges the oil out of the second forced induction device.Type: GrantFiled: September 8, 2016Date of Patent: October 23, 2018Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi Uesugi, Koichi Yonezawa
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Patent number: 10087820Abstract: A turbocharger includes a cooling passage. The cooling passage extends along a diffuser surface. Fluid for cooling the diffuser surface flows through the cooling passage. The turbocharger includes a water jacket, which is arranged at a connection portion between a blow-by gas recirculation passage and an intake passage. Coolant for warming blow-by gas flows through the water jacket. The cooling passage communicates with the water jacket. Coolant that has been drawn into the cooling passage flows through the water jacket after flowing through the cooling passage.Type: GrantFiled: March 16, 2016Date of Patent: October 2, 2018Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi Uesugi, Koichi Yonezawa
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Publication number: 20180100427Abstract: A vehicle forced-induction device includes a first exhaust turbine type forced-induction unit and a second exhaust turbine type forced-induction unit. The first forced-induction unit includes an outlet pipe. The outlet pipe includes a first tubular portion and an annular first flange. The second forced-induction unit includes an inlet pipe. The inlet pipe includes a second tubular portion and an annular second flange. The forced-induction device includes a fastener that includes an annular groove. The annular groove has a shape in which a width of the annular groove decreases toward a groove bottom. The fastener is wound around the first and second flanges along a circumference of the first and the second flanges, thereby housing the first and second flanges in the annular groove. The fastener fastens the first and second flanges to urge the first and second flanges toward each other.Type: ApplicationFiled: September 26, 2017Publication date: April 12, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN TAKAOKA CO., LTD.Inventors: Takashi TSUKIYAMA, Haruto URA, Tsuyoshi UESUGI, Daisuke TERUI, Akihiro HOSONO, Ryuta KAWAZOE
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Patent number: 9850777Abstract: Embodiments of the present invention may include a turbocharger having a turbine, a turbine housing, a variable valve, a first plate, a second plate and a heat shield member. The turbine housing accommodates the turbine and has a flow path. The variable valve rotates about each pivot member provided thereon, thereby adjusting the flow velocity of fluid guided from the flow path to the turbine. The first plate supports one end of each pivot member, and defines the flow path. The second plate supports the other end of each pivot member or the variable valves, and defines the flow path. The heat shield member covers a wall surface of the turbine housing, and defines the flow path.Type: GrantFiled: January 27, 2014Date of Patent: December 26, 2017Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Tsuyoshi Uesugi
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Patent number: 9739165Abstract: Embodiments of the present invention may include a variable nozzle turbocharger having a variable nozzle mechanism for controlling a flow velocity of exhaust gas to a turbine wheel. The variable nozzle mechanism includes a plurality of variable nozzles, a unison ring and a biasing member. The variable nozzles each have a nozzle vane. The unison ring is configured to adjust a degree of opening of the variable nozzles through rotation of the unison ring. The biasing member biases the unison ring so as to open the variable nozzles.Type: GrantFiled: May 13, 2014Date of Patent: August 22, 2017Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi Uesugi, Hiroaki Ikegami
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Patent number: 9695706Abstract: Embodiments of the present invention may include a variable nozzle turbocharger having a variable nozzle mechanism. The variable nozzle mechanism has a unison ring and a drive arm. The unison ring adjusts a degree of opening of variable nozzles having nozzle vanes through rotation of the unison ring. The unison ring has a first fit-engagement groove. The first fit-engagement groove has a closing side surface of a concave arcuate shape and an opening side surface of a convex arcuate shape facing the closing side surface with a fixed groove width therebetween. A drive arm has a first fit-engagement portion engaged with the first fit-engagement groove so that the first fit-engagement portion is rotatable and movable in the radial direction of the unison ring. The first fit-engagement portion has a closing side contact surface of a convex arcuate shape that is able to contact the closing side surface.Type: GrantFiled: May 15, 2014Date of Patent: July 4, 2017Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi Uesugi, Hiroaki Ikegami
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Patent number: RE46739Abstract: To provide a photoelectric conversion device having a high photoelectric conversion efficiency, a photoelectric conversion device 21 includes a substrate 1, a plurality of lower electrodes 2 on the substrate 1 comprising a metal element, a plurality of photoelectric conversion layers 33 comprising a chalcogen compound semiconductor formed on the plurality of lower electrodes 2 and separated from one another on the lower electrodes 2, a metal-chalcogen compound layer 8 comprising the metal element and a chalcogen element included in the chalcogen compound semiconductor formed between the lower electrode 2 and the photoelectric conversion layer 33, an upper electrode 5 formed on the photoelectric conversion layer 33, and a connection conductor 7 electrically connecting, in a plurality of the photoelectric conversion layers 33, the upper electrode 5 to the lower electrode 2 without interposition of the metal-chalcogen compound layer 8.Type: GrantFiled: March 17, 2016Date of Patent: February 27, 2018Assignee: KYOCERA CORPORATIONInventors: Daisuke Nishimura, Toshifumi Sugawara, Ken Nishiura, Norihiko Matsushima, Yosuke Inomata, Hisao Arimune, Tsuyoshi Uesugi