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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Publication number: 20170074159Abstract: 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: ApplicationFiled: September 8, 2016Publication date: March 16, 2017Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi UESUGI, Koichi YONEZAWA
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Publication number: 20160273548Abstract: 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: ApplicationFiled: March 16, 2016Publication date: September 22, 2016Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi UESUGI, Koichi YONEZAWA
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Publication number: 20160273551Abstract: 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: ApplicationFiled: March 16, 2016Publication date: September 22, 2016Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsuyoshi UESUGI, Koichi YONEZAWA
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Patent number: 9400012Abstract: A turbocharger is provided with a rotor shaft and a semi-floating bearing arranged in a bearing chamber and rotatably supporting the rotor shaft. The semi-floating bearing has a pair of bearing portions located at two longitudinal ends. A region between the pair of bearing portions in an outer peripheral surface of the semi-floating bearing and an inner peripheral surface of the bearing chamber constitute an outside oil feed chamber to supply a lubricant oil to outer peripheral surfaces of the pair of bearing portions. A groove extending in a circumferential direction is formed in the outer peripheral surface of at least one of the bearing portions. An oil feed passage to supply the lubricant oil to the outside oil feed chamber and a discharge passage opposed to the groove and configured to discharge the lubricant oil in the groove downward are formed in the bearing housing.Type: GrantFiled: April 12, 2012Date of Patent: July 26, 2016Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiromu Iwata, Tsuyoshi Uesugi
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Patent number: 9261016Abstract: A flow rate adjustment method for a variable geometry turbocharger may include steps as follows. An adjustment apparatus drives an actuator to an abutment position where a power transmission member abuts a stopper. The apparatus acquires the abutment position opening amount based on an opening detection sensor's signal. The apparatus drives the actuator until the detection amount attains a pre-set amount, moving the power transmission member to a temporary control position. The apparatus acquires a temporary control position flow rate. It is acquired when an adjustment gas inflow apparatus causes the adjustment gas to flow into an exhaust turbine, and a flow rate measurement sensor measures the flow rate of the adjustment gas. The apparatus obtains a correction amount based on a difference between the temporary control position flow rate and a real control position flow rate, which is a proper flow rate corresponding to the pre-set amount.Type: GrantFiled: December 3, 2012Date of Patent: February 16, 2016Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tsuyoshi Uesugi, Hiromu Iwata, Kenta Akimoto
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Patent number: 9080462Abstract: A turbocharger is provided with a bearing housing having a housing body supporting a rotor shaft in a rotatable state and having a bearing hole formed therein. An oil jacket is formed in the lower half portion of the housing body. A water jacket is formed in the upper half portion of the housing body, without protruding into the lower half portion.Type: GrantFiled: February 24, 2012Date of Patent: July 14, 2015Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Tsuyoshi Uesugi
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Publication number: 20140341718Abstract: 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: ApplicationFiled: May 13, 2014Publication date: November 20, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tsuyoshi UESUGI, Hiroaki IKEGAMI
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Publication number: 20140341719Abstract: 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: ApplicationFiled: May 15, 2014Publication date: November 20, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tsuyoshi UESUGI, Hiroaki IKEGAMI
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Publication number: 20140321990Abstract: 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: ApplicationFiled: November 13, 2012Publication date: October 30, 2014Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroaki Ikegami, Tsuyoshi Uesugi
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Publication number: 20140311159Abstract: A variable nozzle mechanism applied to a turbocharger includes a pair of annular plates located between a scroll passage and a turbine chamber such that the plates are apart from each other in a direction along an axis; a coupling portion which couples the plates; a plurality of variable nozzles which are provided between the plates so as to open and close, and which change a flow speed of exhaust gas blown onto a turbine wheel when an opening degree of the variable nozzles is changed; and an urging portion which urges the plates in the direction along the axis to press one of the plates against a contacted object. The one of the plates includes a contact face which is in contact with the contacted object, and the contact face is located on an action line along which an urging force of the urging portion acts.Type: ApplicationFiled: November 6, 2012Publication date: October 23, 2014Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroaki Ikegami, Koichi Yonezawa, Tsuyoshi Uesugi, Manabu Ishikawa
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Publication number: 20140212277Abstract: 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: ApplicationFiled: January 27, 2014Publication date: July 31, 2014Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Tsuyoshi UESUGI
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Patent number: 8674210Abstract: 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: September 29, 2010Date of Patent: March 18, 2014Assignee: Kyocera CorporationInventors: Daisuke Nishimura, Toshifumi Sugawara, Ken Nishiura, Norihiko Matsushima, Yosuke Inomata, Hisao Arimune, Tsuyoshi Uesugi
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Patent number: 8628247Abstract: A turbocharger is provided with a rotor shaft, a bearing housing in which a bearing hole is formed, and a bearing member of the semi-floating type arranged in the bearing hole and supporting the rotor shaft in a rotatable state. The bearing member has a first bearing portion and a second bearing portion spaced at a predetermined interval in the axial direction of the rotor shaft, in its inner periphery. A region between the first bearing portion and the second bearing portion in the inner periphery of the bearing member, and an outer periphery of the rotor shaft constitute an oil passage for supply of lubricant oil to inside surfaces of the first and second bearing portions. Oil grooves to suppress the whirl vibration are formed in each of the inside surfaces of the first and second bearing portions. The oil grooves are closed in part.Type: GrantFiled: February 10, 2012Date of Patent: January 14, 2014Assignee: Kabushiki Kaisha Toyota JidoshokkiInventor: Tsuyoshi Uesugi
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Publication number: 20120263589Abstract: A turbocharger is provided with a rotor shaft and a semi-floating bearing arranged in a bearing chamber and rotatably supporting the rotor shaft. The semi-floating bearing has a pair of bearing portions located at two longitudinal ends. A region between the pair of bearing portions in an outer peripheral surface of the semi-floating bearing and an inner peripheral surface of the bearing chamber constitute an outside oil feed chamber to supply a lubricant oil to outer peripheral surfaces of the pair of bearing portions. A groove extending in a circumferential direction is formed in the outer peripheral surface of at least one of the bearing portions. An oil feed passage to supply the lubricant oil to the outside oil feed chamber and a discharge passage opposed to the groove and configured to discharge the lubricant oil in the groove downward are formed in the bearing housing.Type: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hiromu IWATA, Tsuyoshi UESUGI
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Publication number: 20120237149Abstract: A turbocharger is provided with a rotor shaft, a bearing housing in which a bearing hole is formed, and a bearing member of the semi-floating type arranged in the bearing hole and supporting the rotor shaft in a rotatable state. The bearing member has a first bearing portion and a second bearing portion spaced at a predetermined interval in the axial direction of the rotor shaft, in its inner periphery. A region between the first bearing portion and the second bearing portion in the inner periphery of the bearing member, and an outer periphery of the rotor shaft constitute an oil passage for supply of lubricant oil to inside surfaces of the first and second bearing portions. Oil grooves to suppress the whirl vibration are formed in each of the inside surfaces of the first and second bearing portions. The oil grooves are closed in part.Type: ApplicationFiled: February 10, 2012Publication date: September 20, 2012Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Tsuyoshi UESUGI
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Publication number: 20120237345Abstract: A turbocharger is provided with a bearing housing having a housing body supporting a rotor shaft in a rotatable state and having a bearing hole formed therein. An oil jacket is formed in the lower half portion of the housing body. A water jacket is formed in the upper half portion of the housing body, without protruding into the lower half portion.Type: ApplicationFiled: February 24, 2012Publication date: September 20, 2012Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Tsuyoshi UESUGI
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Publication number: 20120174957Abstract: 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: ApplicationFiled: September 29, 2010Publication date: July 12, 2012Applicant: KYOCERA CORPORATIONInventors: Daisuke Nishimura, Toshifumi Sugawara, Ken Nishiura, Norihiko Matsushima, Yosuke Inomata, Hisao Arimune, Tsuyoshi Uesugi