Patents by Inventor Toshihisa Sugiyama
Toshihisa Sugiyama 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: 10107148Abstract: A valve rotation includes: a first sheet member that extends toward a surrounding of a valve stem under a condition that a rotation action of the first sheet member is suppressed with respect to a cylinder head, and a second sheet member that faces to the first sheet member, that is capable of rotating with respect to the first sheet member and is subjected to a load for opening the valve; a force conversion structure that converts the load for opening the valve applied to the second sheet member into a rotation force.Type: GrantFiled: February 17, 2015Date of Patent: October 23, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shouji Katsumata, Kenichi Harada, Toshihisa Sugiyama
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Patent number: 9726055Abstract: A poppet valve includes a head and a stem, which extends from the head. At least a part of the back of the head is covered by a cover with a heat insulating space provided in between. A support portion is provided between the cover and the head to support the cover on the head with rubber member having a lower heat conductivity than that of the head between the cover and the head.Type: GrantFiled: January 7, 2014Date of Patent: August 8, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shouji Katsumata, Kenichi Harada, Keiju Tomoda, Toshihisa Sugiyama
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Patent number: 9644507Abstract: An oil pan structure (1) includes a lower structure (2) fixed to a lower portion of an engine block, a main oil pan (3) provided under an engine block with the lower structure being between the main oil pan and the engine block, a sub oil pan (5) that is provided in the main oil pan (3) and forms a first chamber (6) and a second chamber (7) inside the main oil pan (3). The sub oil pan (5) is separated into an upper body (5a) and a lower body (5b). The upper body (5a) is formed together with the lower structure (2) by injection molding.Type: GrantFiled: May 29, 2008Date of Patent: May 9, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenichi Yamada, Hideo Kobayashi, Katuhiko Arisawa, Toshihisa Sugiyama, Kunihiko Hayashi, Ryo Michikawauchi
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Publication number: 20170058724Abstract: A valve rotation includes: a first sheet member that extends toward a surrounding of a valve stem under a condition that a rotation action of the first sheet member is suppressed with respect to a cylinder head, and a second sheet member that faces to the first sheet member, that is capable of rotating with respect to the first sheet member and is subjected to a load for opening the valve; a force conversion structure that converts the load for opening the valve applied to the second sheet member into a rotation force.Type: ApplicationFiled: February 17, 2015Publication date: March 2, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shouji KATSUMATA, Kenichi HARADA, Toshihisa SUGIYAMA
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Publication number: 20150369091Abstract: A poppet valve includes a head and a stem, which extends from the head. At least a part of the back of the head is covered by a cover with a heat insulating space provided in between. A support portion is provided between the cover and the head to support the cover on the head with rubber member having a lower heat conductivity than that of the head between the cover and the head.Type: ApplicationFiled: January 7, 2014Publication date: December 24, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shouji KATSUMATA, Kenichi HARADA, Keiju TOMODA, Toshihisa SUGIYAMA
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Patent number: 8683963Abstract: A hydraulic control device is equipped with an oil jet that injects oil to a piston, an oil gallery through which oil injected by the oil jet and oil supplied to a lubrication part of an engine pass, an oil pump that pumps oil to the oil gallery, and a switching valve that is provided on an oil jet passage connecting the oil gallery and the oil jet together and leads oil supplied from the oil gallery to either the oil jet or an oil pan disposed at an upstream side of the oil pump. An ECU controls the switching valve on the basis of an engine speed and an engine cooling water temperature.Type: GrantFiled: June 8, 2009Date of Patent: April 1, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideo Kobayashi, Toshihisa Sugiyama, Kenichi Yamada, Shusaku Sugamoto, Bunki Kawano
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Publication number: 20130008165Abstract: A Rankine cycle system includes: a superheater, an expander including a first outlet discharging steam and a second outlet discharging liquid refrigerant produced therein; a first discharge path discharging the steam from the expander; a condenser condensing the steam introduced through the first discharge path into liquid refrigerant, a condensed water tank reserving the liquid refrigerant produced in the condenser; and a second discharge path discharging the liquid refrigerant from the expander to the condensed water tank, wherein a liquid level in the condensed water tank satisfies a following relation: ?h>?Pto/?g, when ?h means a height difference between the liquid level and a lowest liquid level in the second discharge path, ?Pto means a pressure loss when the steam flows into the condenser from the expander through the first discharge path, ? means a density of the liquid refrigerant, and g means a gravitational acceleration.Type: ApplicationFiled: March 25, 2010Publication date: January 10, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenichi Yamada, Hideo Kobayashi, Masahide Ishikawa, Toshihisa Sugiyama
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Patent number: 8347846Abstract: A vehicle control system 10 includes a water pump 23 with an electromagnetic clutch, an oil relief device 25, an OCV 26, a water temperature sensor 31, and an ECU 11. The ECU 11 causes the electromagnetic clutch of the water pump 23 to be disengaged on the basis of the detection result detected by the water temperature sensor 31, and stops the coolant circulation. The ECU 11 instructs the OCV 26 to adjust the lubricant pressure to low by an oil relief device 25. The ECU 11 determines whether or not the adjustment of the lubricant pressure to low by the oil relief device 25 is stopped on the basis of the detection result detected by the water temperature sensor 31 when the engagement of the electromagnetic clutch of the water pump 23 continues for a given period.Type: GrantFiled: June 9, 2009Date of Patent: January 8, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideo Kobayashi, Toshihisa Sugiyama, Katuhiko Arisawa, Kenichi Yamada, Kunihiko Hayashi, Akihito Hosoi, Syusaku Sugamoto
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Publication number: 20120132172Abstract: A hydraulic control device is equipped with an oil jet that injects oil to a piston, an oil gallery through which oil injected by the oil jet and oil supplied to a lubrication part of an engine pass, an oil pump that pumps oil to the oil gallery, and a switching valve that is provided on an oil jet passage connecting the oil gallery and the oil jet together and leads oil supplied from the oil gallery to either the oil jet or an oil pan disposed at an upstream side of the oil pump. An ECU controls the switching valve on the basis of an engine speed and an engine cooling water temperature.Type: ApplicationFiled: June 8, 2009Publication date: May 31, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideo Kobayashi, Toshihisa Sugiyama, Kenichi Yamada, Shusaku Sugamoto, Bunki Kawano
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Patent number: 7971427Abstract: An exhaust gas purifying apparatus for an internal combustion engine is provided.Type: GrantFiled: June 14, 2007Date of Patent: July 5, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshihisa Sugiyama
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Publication number: 20110126784Abstract: A vehicle control system 10 includes a water pump 23 with an electromagnetic clutch, an oil relief device 25, an OCV 26, a water temperature sensor 31, and an ECU 11. The ECU 11 causes the electromagnetic clutch of the water pump 23 to be disengaged on the basis of the detection result detected by the water temperature sensor 31, and stops the coolant circulation. The ECU 11 instructs the OCV 26 to adjust the lubricant pressure to low by an oil relief device 25. The ECU 11 determines whether or not the adjustment of the lubricant pressure to low by the oil relief device 25 is stopped on the basis of the detection result detected by the water temperature sensor 31 when the engagement of the electromagnetic clutch of the water pump 23 continues for a given period.Type: ApplicationFiled: June 9, 2009Publication date: June 2, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideo Kobayashi, Toshihisa Sugiyama, Katuhiko Arisawa, Kenichi Yamada, Kunihiko Hayashi, Akihito Hosoi, Syusaku Sugamoto
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Publication number: 20100199942Abstract: An oil pan structure (1) includes a lower structure (2) fixed to a lower portion of an engine block, a main oil pan (3) provided under an engine block with the lower structure being between the main oil pan and the engine block, a sub oil pan (5) that is provided in the main oil pan (3) and forms a first chamber (6) and a second chamber (7) inside the main oil pan (3). The sub oil pan (5) is separated into an upper body (5a) and a lower body (5b). The upper body (5a) is formed together with the lower structure (2) by injection molding.Type: ApplicationFiled: May 29, 2008Publication date: August 12, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenichi Yamada, Hideo Kobayashi, Katuhiko Arisawa, Toshihisa Sugiyama, Kunihiko Hayashi, Ryo Michikawauchi
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Publication number: 20090090098Abstract: An exhaust gas purifying apparatus for an internal combustion engine is provided.Type: ApplicationFiled: June 14, 2007Publication date: April 9, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Toshihisa Sugiyama
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Patent number: 6945036Abstract: Carbon-containing particulates like soot included in an exhaust gas of an internal combustion engine are collected by means of a heat-resistant filter medium. The filter medium dispersedly collects hydrocarbon compounds and the carbon-containing particulates included in the exhaust gas. Even when the exhaust gas has a lower temperature than the combustible temperature of the carbon-containing particulates, such dispersed collection ensures start of a preliminary oxidation reaction of the collected hydrocarbon compounds with oxygen included in the exhaust gas. The collected hydrocarbon compounds and the collected carbon-containing particulates are then subjected to combustion with the exhaust gas having a filter inflow temperature lower than the combustible temperature of the carbon-containing particulates by utilizing the reaction heat and active species produced by the reaction. This technique thus simply but securely regulates and reduces the carbon-containing particulates included in the exhaust gas.Type: GrantFiled: September 18, 2001Date of Patent: September 20, 2005Assignee: Toyota Jidosha Kabushiki KaishaInventors: Zenichiro Kato, Hiromichi Yanagihara, Toshihisa Sugiyama, Yoshimitsu Henda, Kazuhiko Shiratani, Rentaro Kuroki
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Patent number: 6829891Abstract: A first heat-resistant filter medium is disposed in an exhaust pathway of an internal combustion engine. The first heat-resistant filter medium traps hydrocarbon compounds and carbon-containing particulates included in a flow of exhaust gas in a dispersive manner to bring the respective particulates and hydrocarbon compounds in contact with oxygen included in the exhaust gas. The trapped hydrocarbon compounds and the trapped carbon-containing particulates are subjected to combustion with the exhaust gas having a filter inflow temperature lower than a combustible temperature of the carbon-containing particulates. A second heat-resistant filter medium is further disposed downstream of the first heat-resistant filter medium to trap the remaining carbon-containing particulates, which have not been trapped by the first heat-resistant filter medium but have passed through the first heat-resistant filter medium. This arrangement desirably enhances the reduction rate of the particulates.Type: GrantFiled: June 20, 2002Date of Patent: December 14, 2004Assignee: Toyota Jidosha Kabushiki KaishaInventors: Zenichiro Kato, Hiromichi Yanagihara, Toshihisa Sugiyama, Yoshimitsu Henda, Kazuhiko Shiratani, Rentaro Kuroki
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Publication number: 20020189247Abstract: A first heat-resistant filter medium is disposed in an exhaust pathway of an internal combustion engine. The first heat-resistant filter medium traps hydrocarbon compounds and carbon-containing particulates included in a flow of exhaust gas in a dispersive manner to bring the respective particulates and hydrocarbon compounds in contact with oxygen included in the exhaust gas. The trapped hydrocarbon compounds and the trapped carbon-containing particulates are subjected to combustion with the exhaust gas having a filter inflow temperature lower than a combustible temperature of the carbon-containing particulates. A second heat-resistant filter medium is further disposed downstream of the first heat-resistant filter medium to trap the remaining carbon-containing particulates, which have not been trapped by the first heat-resistant filter medium but have passed through the first heat-resistant filter medium. This arrangement desirably enhances the reduction rate of the particulates.Type: ApplicationFiled: June 20, 2002Publication date: December 19, 2002Inventors: Zenichiro Kato, Hiromichi Yanagihara, Toshihisa Sugiyama, Yoshimitsu Henda, Kazuhiko Shiratani, Rentaro Kuroki
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Publication number: 20020162325Abstract: Carbon-containing particulates like soot included in an exhaust gas of an internal combustion engine are collected by means of a heat-resistant filter medium. The filter medium dispersedly collects hydrocarbon compounds and the carbon-containing particulates included in the exhaust gas. Even when the exhaust gas has a lower temperature than the combustible temperature of the carbon-containing particulates, such dispersed collection ensures start of a preliminary oxidation reaction of the collected hydrocarbon compounds with oxygen included in the exhaust gas. The collected hydrocarbon compounds and the collected carbon-containing particulates are then subjected to combustion with the exhaust gas having a filter inflow temperature lower than the combustible temperature of the carbon-containing particulates by utilizing the reaction heat and active species produced by the reaction. This technique thus simply but securely regulates and reduces the carbon-containing particulates included in the exhaust gas.Type: ApplicationFiled: May 15, 2002Publication date: November 7, 2002Inventors: Zenichiro Kato, Hiromichi Yanagihara, Toshihisa Sugiyama, Yoshimitsu Henda, Kazuhiko Shiratani, Rentaro Kuroki
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Patent number: 5277029Abstract: An internal combustion engine with a dual turbocharger system includes an air bypass conduit connecting a downstream portion of a first turbocharger compressor with an upstream portion of a second turbocharger compressor so that the length of the air bypass conduit is relatively long. When a throttle is rapidly closed, an air bypass valve installed in the air bypass conduit is opened and the compressed air downstream of the throttle valve is returned to the upstream of the turbocharger compressor to suppress occurrence of a surging at the turbocharger compressor. Since the air bypass conduit is relatively long, the compressed and circulated air is effectively cooled when flowing through the air bypass conduit and melting of an impeller of the turbocharger compressor is prevented.Type: GrantFiled: June 18, 1992Date of Patent: January 11, 1994Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toru Kidokoro, Mamoru Yoshioka, Toshihisa Sugiyama, Kunihiko Nakata, Yuji Kanto, Keizo Takahashi
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Patent number: 5190015Abstract: An evaporated fuel discharge suppressing apparatus includes a main purge conduit and a bypass purge conduit. The main purge conduit connects a canister and an intake conduit of an engine downstream of a throttle valve, and a purge control solenoid valve is installed in the main purge conduit. The bypass purge conduit bypasses the purge control solenoid valve. Even if the purge control solenoid valve sticks in a closed position, evaporated fuel adsorbed by the canister can flow into the intake conduit of the engine through the bypass purge conduit so that the evaporated fuel in the canister is not discharged into the atmosphere.Type: GrantFiled: February 4, 1992Date of Patent: March 2, 1993Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kunihiko Nakata, Mamoru Yoshioka, Toshihisa Sugiyama, Yuji Kanto
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Patent number: 5186005Abstract: An internal combustion engine with a dual turbocharger system which includes an engine, a first and a second turbocharger arranged in parallel with each other, an intake switching valve located downstream of a compressor of the second turbocharger, an exhaust switching valve located downstream of a turbine of the second turbocharger. The engine operation is changed between a "one-turbocharger-operation" wherein only the first turbocharger is operated and a "two-turbocharger-operation" wherein both the first turbocharger and the second turbocharger are operated. Change from the "one-turbocharger-operation" to the "two-turbocharger-operation" is performed on the basis of an intake air quantity, and change from the "two-turbocharger-operation" to the "one-turbocharger-operation" is performed on the basis of an engine speed. This type of change suppresses a torque shock at shift changing during acceleration and improves the drive feeling.Type: GrantFiled: March 7, 1991Date of Patent: February 16, 1993Assignee: Toyota Jidosha Kabushiki KaishaInventors: Mamoru Yoshioka, Toshihisa Sugiyama, Toru Kidokoro