Patents by Inventor Nobutaka Ishii
Nobutaka Ishii 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: 11959543Abstract: The disclosure provides a lubricating structure for a vehicle power transmission device that may effectively lubricate a transfer device and a differential device without increasing the amount of oil. The lubricating structure includes: a first guide wall positioned above a bearing; a second guide wall provided below an oil reservoir and extending toward a central axis of a final driven gear; and an oil catch member that receives oil guided by the second guide wall and supplies the oil to a differential device and the bearing. The oil catch member includes a first inclined part inclined so that a direction of the first guide wall is lowered, a notch formed at a position facing an opening formed in a differential case, and a groove for oil guiding that extends toward the bearing.Type: GrantFiled: February 6, 2023Date of Patent: April 16, 2024Assignee: Honda Motor Co., Ltd.Inventors: Takuto Kanase, Nobutaka Fukamizu, Seiji Ishii, Takeo Furuta
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Patent number: 10054027Abstract: There is provided an exhaust purification apparatus for an internal combustion engine in which a catalyst capable of adsorbing and oxidizing hydrocarbon is provided in an exhaust pipe, the exhaust purification apparatus including temperature detection means for detecting a temperature of the catalyst, estimation means for accumulating a time during which the temperature of the catalyst detected by the temperature detection means is equal to or less than a predetermined temperature, and estimating an amount of hydrocarbon adsorbed on the catalyst from the accumulated time, and control means for controlling fuel ejection of the internal combustion engine in a first ejection mode in which the temperature of the catalyst is increased to a temperature where hydrocarbons adsorbed on the catalyst are oxidized, in a case in which the amount of hydrocarbons estimated by the estimation means exceeds a predetermined upper limit.Type: GrantFiled: February 12, 2015Date of Patent: August 21, 2018Assignee: ISUZU MOTORS LIMITEDInventors: Tsutomu Muramoto, Nobutaka Ishii, Futoshi Nakano, Takashi Yamashita, Satoshi Kanekiyo, Kenji Hagio, Katsushi Osada, Tsugio Chinone
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Publication number: 20170074144Abstract: There is provided an exhaust purification apparatus for an internal combustion engine in which a catalyst capable of adsorbing and oxidizing hydrocarbon is provided in an exhaust pipe, the exhaust purification apparatus including temperature detection means for detecting a temperature of the catalyst, estimation means for accumulating a time during which the temperature of the catalyst detected by the temperature detection means is equal to or less than a predetermined temperature, and estimating an amount of hydrocarbon adsorbed on the catalyst from the accumulated time, and control means for controlling fuel ejection of the internal combustion engine in a first ejection mode in which the temperature of the catalyst is increased to a temperature where hydrocarbons adsorbed on the catalyst are oxidized, in a case in which the amount of hydrocarbons estimated by the estimation means exceeds a predetermined upper limit.Type: ApplicationFiled: February 12, 2015Publication date: March 16, 2017Applicant: Isuzu Motors LimitedInventors: Tsutomu MURAMOTO, Nobutaka ISHII, Futoshi NAKANO, Takashi YAMASHITA, Satoshi KANEKIYO, Kenji HAGIO, Katsushi OSADA, Tsugio CHINONE
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Patent number: 7530506Abstract: A valve element of a fuel injection valve comprises a cylindrical structural base which has an upper end contactable with a lower end of a core tube installed in a cylindrical case and a spherical valve head which is contactable with a valve seat arranged at a lower end of the cylindrical case. The structural base is a sintered magnetic metal member produced through a metal powder injection molding method and has a relative density ranging from approximately 95% to approximately 98%, and the structure base has, at the end thereof that is contactable with the downstream end of the core tube, a notched surface for suppressing an undesirable sticking of the end of the structural base to the downstream end of the core tube.Type: GrantFiled: May 21, 2003Date of Patent: May 12, 2009Assignee: Hitachi, Ltd.Inventors: Hideo Kato, Tomoichi Misawa, Nobuaki Kobayashi, Nobutaka Ishii
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Patent number: 7100848Abstract: A fuel injection valve of an internal combustion engine for a vehicle is comprised of a nozzle plate which has a plurality of nozzle holes. Fuel injection jets are injected from the nozzle holes and collided with each other. The thickness of the nozzle plate is equal to or greater than the diameter of the nozzle holes.Type: GrantFiled: May 9, 2003Date of Patent: September 5, 2006Assignee: Hitachi, Ltd.Inventors: Nobuaki Kobayashi, Nobutaka Ishii, Tomoichi Misawa, Hideo Kato
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Patent number: 7066144Abstract: A control device for an internal combustion engine comprising an EGR passage (22) for connecting an intake passage (17) and an exhaust passage (18) with each other, an EGR valve (24) provided in the EGR passage (22), and an intake throttle valve (19) provided in the intake passage (17) at an upstream side of the connection part with the EGR passage (22). The control device comprises operational state detection means for detecting an operational state of the internal combustion engine, first control means for controlling opening and closing of the intake throttle valve (19) and the EGR valve (24) to adjust intake air volume if the operational state detection means detects a normal operational state, and second control means for controlling the intake throttle valve (19) at a predetermined constant opening degree and for controlling opening and closing of the EGR valve (24) to adjust an intake air volume if the operational state detection means detects a predetermined operational state.Type: GrantFiled: July 30, 2004Date of Patent: June 27, 2006Assignee: Isuzu Motors LimitedInventors: Toshiaki Harunari, Koichiro Yomogida, Futoshi Nakano, Nobutaka Ishii, Kazuya Tomikawa
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Patent number: 6966303Abstract: An EGR control apparatus for a diesel engine which can stop EGR in advance of increase of a fuel injection quantity when acceleration of the engine comprises: EGR means (4) to adjust an EGR volume which is recirculated from an exhaust pipe (2) to an intake pipe (3); filter means (23) to carry out a smoothening-process to an accelerator opening degree detected by an accelerator opening degree sensor; injection quantity determination means (24) to determine a target fuel injection quantity to be injected from an injector (20), using the accelerator opening degree after smoothening-processed; and control means (25) to calculate a fuel injection quantity for judging EGR stop (Qcut), using the accelerator opening degree before smoothening-processed, to allow the EGR means (4) to carry out a decrease control for the EGR volume when the fuel injection quantity for judging EGR stop (Qcut) exceeds a predetermined threshold value (Hi).Type: GrantFiled: July 27, 2004Date of Patent: November 22, 2005Assignee: Isuzu Motors LimitedInventors: Toshiaki Harunari, Koichiro Yomogida, Nobutaka Ishii, Kazuya Tomikawa, Futoshi Nakano
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Patent number: 6874710Abstract: A fuel injection valve includes: a magnetic barrel body made of a magnetic material and shaped substantially into a barrel, a core barrel made of a magnetic material and shaped substantially into a barrel, a valve seat member positioned on a downstream side of the core barrel and disposed in the magnetic barrel body, a valve body positioned between the core barrel and the valve seat member, an O-ring positioned in a vicinity of a flange portion of the magnetic barrel body, a fuel filter assembly disposed at the first end on the fuel's influx side of the magnetic barrel body. A flange of the fuel filter assembly is made of a material lower in hardness than the magnetic material of the magnetic barrel body. The flange of the fuel filter assembly has a diameter larger than the diameter of the flange portion of the magnetic barrel body.Type: GrantFiled: April 22, 2003Date of Patent: April 5, 2005Assignee: Hitachi Unisia Automotive, Ltd.Inventors: Nobutaka Ishii, Hideo Kato, Tomoichi Misawa, Nobuaki Kobayashi
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Publication number: 20050028785Abstract: A control device for an internal combustion engine comprising an EGR passage (22) for connecting an intake passage (17) and an exhaust passage (18) with each other, an EGR valve (24) provided in the EGR passage (22), and an Intake throttle valve (19) provided in the intake passage (17) at an upstream side of the connection part with the EGR passage (22). The control device comprises operational state detection means for detecting an operational state of the internal combustion engine, first control means for controlling opening and closing of the intake throttle valve (19) and the EGR valve (24) to adjust intake air volume if the operational state detection means detects a normal operational state, and second control means for controlling the intake throttle valve (19) at a predetermined constant opening degree and for controlling opening and closing of the EGR valve (24) to adjust an intake air volume if the operational state detection means detects a predetermined operational state.Type: ApplicationFiled: July 30, 2004Publication date: February 10, 2005Applicant: Isuzu Motors LimitedInventors: Toshiaki Harunari, Koichiro Yomogida, Futoshi Nakano, Nobutaka Ishii, Kazuya Tomikawa
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Publication number: 20050022792Abstract: An EGR control apparatus for a diesel engine which can stop EGR in advance of increase of a fuel injection quantity when acceleration of the engine comprises: EGR means (4) to adjust an EGR volume which is recirculated from an exhaust pipe (2) to an intake pipe (3); filter means (23) to carry out a smoothening-process to an accelerator opening degree detected by an accelerator opening degree sensor; injection quantity determination means (24) to determine a target fuel injection quantity to be injected from an injector (20), using the accelerator opening degree after smoothening-processed; and control means (25) to calculate a fuel injection quantity for judging EGR stop (Qcut), using the accelerator opening degree before smoothening-processed, to allow the EGR means (4) to carry out a decrease control for the EGR volume when the fuel injection quantity for judging EGR stop (Qcut) exceeds a predetermined threshold value (Hi).Type: ApplicationFiled: July 27, 2004Publication date: February 3, 2005Applicant: Isuzu Motors LimitedInventors: Toshiaki Harunari, Koichiro Yomogida, Nobutaka Ishii, Kazuya Tomikawa, Futoshi Nakano
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Publication number: 20030222159Abstract: A fuel injection valve of an internal combustion engine for a vehicle is comprised of a nozzle plate which has a plurality of nozzle holes. Fuel injection jets are injected from the nozzle holes and collided with each other. The thickness of the nozzle plate is equal to or greater than the diameter of the nozzle holes.Type: ApplicationFiled: May 9, 2003Publication date: December 4, 2003Applicant: HITACHI UNISIA AUTOMOTIVE, LTD.Inventors: Nobuaki Kobayashi, Nobutaka Ishii, Tomoichi Misawa, Hideo Kato
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Publication number: 20030218081Abstract: A valve element of a fuel injection valve comprises a cylindrical structural base which has an upper end contactable with a lower end of a core tube installed in a cylindrical case and a spherical valve head which is contactable with a valve seat arranged at a lower end of the cylindrical case. The structural base is a sintered magnetic metal member produced through a metal powder injection molding method and has a relative density ranging from approximately 95% to approximately 98%, and the structure base has, at the end thereof that is contactable with the downstream end of the core tube, a notched surface for suppressing an undesirable sticking of the end of the structural base to the downstream end of the core tube.Type: ApplicationFiled: May 21, 2003Publication date: November 27, 2003Applicant: HITACHI UNISIA AUTOMOTIVE, LTD.Inventors: Hideo Kato, Tomoichi Misawa, Nobuaki Kobayashi, Nobutaka Ishii
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Publication number: 20030209615Abstract: A fuel injection valve includes: a magnetic barrel body made of a magnetic material and shaped substantially into a barrel, a core barrel made of a magnetic material and shaped substantially into a barrel, a valve seat member positioned on a downstream side of the core barrel and disposed in the magnetic barrel body, a valve body positioned between the core barrel and the valve seat member, an O-ring positioned in a vicinity of a flange portion of the magnetic barrel body, a fuel filter assembly disposed at the first end on the fuel's influx side of the magnetic barrel body. A flange of the fuel filter assembly is made of a material lower in hardness than the magnetic material of the magnetic barrel body. The flange of the fuel filter assembly has a diameter larger than the diameter of the flange portion of the magnetic barrel body.Type: ApplicationFiled: April 22, 2003Publication date: November 13, 2003Applicant: HITACHI UNISIA AUTOMOTIVE, LTD.Inventors: Nobutaka Ishii, Hideo Kato, Tomoichi Misawa, Nobuaki Kobayashi