Patents by Inventor Haruyuki Katayama
Haruyuki Katayama 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: 10890111Abstract: An acoustic insulation system for an internal combustion engine mounted on a vehicle according to the present disclosure includes: an acoustic insulation cover configured to cover the internal combustion engine with a gap interposed between the acoustic insulation cover and the internal combustion engine; a first fan configured to introduce air toward the interior of the acoustic insulation cover; and a second fan configured to discharge air from the interior of the acoustic insulation cover.Type: GrantFiled: February 19, 2019Date of Patent: January 12, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Haruyuki Katayama
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Publication number: 20190316518Abstract: An acoustic insulation system for an internal combustion engine mounted on a vehicle according to the present disclosure includes: an acoustic insulation cover configured to cover the internal combustion engine with a gap interposed between the acoustic insulation cover and the internal combustion engine; a first fan configured to introduce air toward the interior of the acoustic insulation cover; and a second fan configured to discharge air from the interior of the acoustic insulation cover.Type: ApplicationFiled: February 19, 2019Publication date: October 17, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Haruyuki KATAYAMA
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Patent number: 9421496Abstract: In an exhaust gas purification apparatus for an internal combustion engine which is provided with a selective reduction type catalyst disposed in an exhaust passage of the internal combustion engine, a reducing agent supply device for supplying an ammonia derived reducing agent to a portion of the exhaust passage at the upstream side of the selective reduction type catalyst, and a mixing device disposed in a portion of the exhaust passage at the upstream side of the selective reduction type catalyst and at the downstream side of the reducing agent supply device, the present invention has a problem to remove solid matter derived from the reducing agent, which is adhered to or deposited on the mixing device, in a suitable manner. In order to solve this problem, the present invention has a temperature raising device disposed in a portion of the exhaust passage upstream of said mixing device so as to blow a flame to said mixing device.Type: GrantFiled: April 28, 2011Date of Patent: August 23, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takanori Nakano, Haruyuki Katayama, Tatsumi Furukubo
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Patent number: 9221017Abstract: The purpose of the present invention is to suppress degradation of a PM sensor and a decrease in detection accuracy of the amount of PM in a configuration in which a urea addition unit and a selective reduction-type NOx catalyst (NOx catalyst) are provided downstream of a particulate filter (filter) in an internal combustion engine exhaust passage, the PM sensor being disposed downstream of the filter. According to the present invention, in an exhaust passage (2) of an internal combustion engine (1), a first NOx catalyst (4) and a second NOx catalyst (5) are disposed downstream of a filter (3) successively from the upstream side along the flow of exhaust. A urea addition unit (6) is disposed between the filter (3) and the first NOx catalyst (4). A PM sensor (7) is disposed between the first NOx catalyst (4) and the second NOx catalyst (5).Type: GrantFiled: July 4, 2011Date of Patent: December 29, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takanori Nakano, Haruyuki Katayama, Shinya Hirota, Shunsuke Toshioka, Koichiro Fukuda
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Publication number: 20140112833Abstract: The purpose of the present invention is to suppress degradation of a PM sensor and a decrease in detection accuracy of the amount of PM in a configuration in which a urea addition unit and a selective reduction-type NOx catalyst (NOx catalyst) are provided downstream of a particulate filter (filter) in an internal corn engine exhaust passage, the PM sensor being disposed downstream of the filter. According to the present invention, in an exhaust passage (2) of an internal combustion engine (1), a first NOx catalyst (4) and a second NOx catalyst (5) are disposed downstream of a fitter (3) successively from the upstream side along the flow of exhaust. A urea addition unit (6) is disposed between the filter (3) and the first NOx catalyst (4). A PM sensor (7) is disposed between the first NOx catalyst (4) and the second NOx catalyst (5).Type: ApplicationFiled: July 4, 2011Publication date: April 24, 2014Inventors: Takanori Nakano, Haruyuki Katayama, Shinya Hirota, Shunsuke Toshioka, Koichiro Fukuda
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Publication number: 20140050628Abstract: In an exhaust gas purification apparatus for an internal combustion engine which is provided with a selective reduction type catalyst disposed in an exhaust passage of the internal combustion engine, a reducing agent supply device for supplying an ammonia derived reducing agent to a portion of the exhaust passage at the upstream side of the selective reduction type catalyst, and a mixing device disposed in a portion of the exhaust passage at the upstream side of the selective reduction type catalyst and at the downstream side of the reducing agent supply device, the present invention has a problem to remove solid matter derived from the reducing agent, which is adhered to or deposited on the mixing device, in a suitable manner. In order to solve this problem, the present invention has a temperature raising device disposed in a portion of the exhaust passage upstream of said mixing device so as to blow a flame to said mixing device.Type: ApplicationFiled: April 28, 2011Publication date: February 20, 2014Inventors: Takanori Nakano, Haruyuki Katayama, Tatsumi Furukubo
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Publication number: 20130004374Abstract: An exhaust gas purification system for an internal combustion engine, the system being provided with: an exhaust gas purification device (13) that is provided in an exhaust gas passage (12) of the internal combustion engine (1); a preceding stage catalyst (14) that is provided in the exhaust gas passage (12) at an upstream side of the exhaust gas purification device (13) and passed through by a part of exhaust gas that flows through the exhaust gas passage (12); a bypass passage (31) that directly introduces exhaust gas of the internal combustion engine (1) into the exhaust gas passage (12) at a downstream side of the preceding stage catalyst (14); and a bypass valve (34) that opens/closes the bypass passage (31).Type: ApplicationFiled: March 12, 2010Publication date: January 3, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Chika Kanba, Haruyuki Katayama
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Publication number: 20120096841Abstract: An exhaust device of an internal-combustion engine provided with a catalytic converter (8) arranged in an exhaust passage (3) of the internal-combustion engine (1); a fuel supply valve (7) that is arranged on the upstream side of the catalytic converter (8) and supplies fuel into the exhaust passage (3); an ignition device (21) capable of igniting the fuel supplied from the fuel supply valve (7); a pressure regulating device (16) that regulates the pressure of the fuel supplied to the fuel supply valve (7); and a controller (10) that controls the fuel supply valve (7) and the pressure regulating device (16). The controller (10) controls the fuel supply valve (7) and the pressure regulating device (16) so as to execute at least one of a plurality of injection operations having different fuel pressures from each other and performed successively, and a single injection operation performed while changing the fuel pressure.Type: ApplicationFiled: April 2, 2010Publication date: April 26, 2012Applicant: Toyota Jidosha Kabushiki KaishaInventors: Takeshi Hayakawa, Haruyuki Katayama
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Publication number: 20110225955Abstract: An exhaust apparatus for an internal combustion engine comprises: an exhaust heating device (40) provided in an exhaust passage (12) of an internal combustion engine (1) for increasing a temperature of an exhaust gas; an exhaust purification catalyst (13) provided in the exhaust passage (12) downstream from the exhaust heating device (40); an EGR passage (30) for connecting the exhaust passage (12) downstream of the exhaust purification catalyst (13) and an intake passage (6) of the internal combustion engine (1); a bypass passage (31) for connecting the EGR passage (30) and a point downstream from the exhaust heating device (40) and also upstream from the exhaust purification catalyst (13) in the exhaust passage (12); a bypass valve (39) operable to open/close the bypass passage (31); and a controller (50) for controlling the control valve.Type: ApplicationFiled: February 17, 2010Publication date: September 22, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuichiro Kimura, Haruyuki Katayama