Patents by Inventor Amane TSUDA
Amane TSUDA 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: 10995649Abstract: A vehicle engine 2 comprises an exhaust system having an exhaust manifold 12 and an exhaust purification device 18. The exhaust manifold 12 is disposed at a predetermined distance from a dash panel 106 constituting a body of the vehicle 100, the exhaust purification device 18 is disposed in a position overlapping a floor tunnel region 114, formed by a floor tunnel of the body, and is disposed below the exhaust manifold 12 and to one side of the center of the engine 2 in the cylinder-array direction, as viewed from the longitudinal direction of the vehicle 100. An exhaust purification device introduction passage 17 connecting the exhaust manifold 12 and the exhaust purification device 18 is disposed on the other side of the center of the exhaust manifold 12 in the cylinder-array direction, and extends below the exhaust manifold 12 to be connected to the exhaust purification device 18.Type: GrantFiled: July 27, 2017Date of Patent: May 4, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Keishi Kitabatake, Taku Kuramashi, Tamotsu Takamure, Takeshi Nakahira, Yuji Kojima, Amane Tsuda
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Patent number: 10746080Abstract: An exhaust system device (1) for a vehicle (100) comprises an exhaust purification device (18) and a first exhaust gas recirculation (EGR) cooler (24). The exhaust purification device (18) is disposed with a central axis of a downstream-side end inclined downwardly toward a rear side of the vehicle (100). The EGR cooler (24) is provided so as to introduce exhaust from a downstream side of the exhaust purification device (18), is adjacent to the exhaust purification device (18) and fixed to the exhaust purification device (18), and is disposed such that a central axis of the EGR cooler (24) is inclined downwardly toward the rear side of the vehicle.Type: GrantFiled: July 27, 2017Date of Patent: August 18, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Takeshi Nakahira, Yuji Kojima, Amane Tsuda
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Publication number: 20200095923Abstract: An intake and exhaust device (1) for a vehicle engine is capable to perform a compression self-ignition operation, the device comprising on an intake passage a supercharger (9) driven by a force other than an exhaust gas, wherein an exhaust purification device (18) disposed on an exhaust passage is disposed adjacent to an outer surface of the engine (2).Type: ApplicationFiled: July 27, 2017Publication date: March 26, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Hirokazu HASEGAWA, Keishi KITABATAKE, Taku KURAMASHI, Ryotaro NISHIDA, Mitsunori WASADA, Takeshi NAKAHIRA, Yuji KOJIMA, Amane TSUDA
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Publication number: 20200025158Abstract: An exhaust system device (1) for a vehicle (100) comprises an exhaust purification device (18) and a first exhaust gas recreation (EGR) cooler (24). The exhaust purification device (18) is disposed with a central axis of a downstream-side end inclined downwardly toward a rear side of the vehicle (100). The EGR cooler (24) is provided so as to introduce exhaust from a downstream side of the exhaust purification device (18), is adjacent to the exhaust purification device (18) and fixed to the exhaust purification device (18), and is disposed such that a central axis of the EGR cooler (24) is inclined downwardly toward the rear side of the vehicle.Type: ApplicationFiled: July 27, 2017Publication date: January 23, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Takeshi NAKAHIRA, Yuji KOJIMA, Amane TSUDA
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Publication number: 20200003104Abstract: A vehicle engine 2 comprises an exhaust system having an exhaust manifold 12 and an exhaust purification device 18. The exhaust manifold 12 is disposed at a predetermined distance from a dash panel 106 constituting a body of the vehicle 100, the exhaust purification device 18 is disposed in a position overlapping a floor tunnel region 114, formed by a floor tunnel of the body, and is disposed below the exhaust manifold 12 and to one side of the center of the engine 2 in the cylinder-array direction, as viewed from the longitudinal direction of the vehicle 100. An exhaust purification device introduction passage 17 connecting the exhaust manifold 12 and the exhaust purification device 18 is disposed on the other side of the center of the exhaust manifold 12 in the cylinder-array direction, and extends below the exhaust manifold 12 to be connected to the exhaust purification device 18.Type: ApplicationFiled: July 27, 2017Publication date: January 2, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Keishi KITABATAKE, Taku KURAMASHI, Tamotsu TAKAMURE, Takeshi NAKAHIRA, Yuji KOJIMA, Amane TSUDA
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Patent number: 10145297Abstract: Disclosed is a controller for a turbocharged engine. The engine includes a supercharger configured to supercharge intake air using an exhaust gas from the engine, and including movable flaps arranged so that a boost pressure generated in an intake passage is adjustable. If a rotational speed of a turbine and compressor that constitute the supercharger has reached a first threshold lower than an endurance limit, an amount of fuel injected to the engine is reduced to a predetermined amount. If the rotational speed has reached a second threshold lower than the first threshold, the amount of fuel injected is reduced in accordance with an excess of the rotational speed over the second threshold.Type: GrantFiled: January 19, 2015Date of Patent: December 4, 2018Assignee: MAZDA MOTOR CORPORATIONInventors: Amane Tsuda, Hiroaki Deguchi, Kenjiro Konomi, Nobuo Yunoki, Yasushi Niwa, Kazuya Niida
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Patent number: 10087868Abstract: An abnormality detector of a turbocharged engine includes: a compressor including a plurality of blades that are detected portions; and a detecting portion configured to electrically detect the plurality of blades. Each time the blades are detected a predetermined number of times, one pulse having a pulse width corresponding to a measurement time required to detect the blades is output, and a turbo revolution is calculated from the pulse width of the output pulse. When it is judged that a rotation change of the rotating body which change is calculated based on a pulse width of a first pulse and a pulse width of a second pulse output after the first pulse exceeds a predetermined rate in a region where the rotating body exceeds a predetermined revolution, it is determined that an abnormality of the blade or an electromagnetic noise abnormality of the detecting portion occurs.Type: GrantFiled: February 18, 2015Date of Patent: October 2, 2018Assignee: Mazda Motor CorporationInventors: Amane Tsuda, Hiroaki Deguchi, Kenjiro Konomi, Nobuo Yunoki, Yasushi Niwa, Kazuya Niida
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Patent number: 10047674Abstract: An exhaust device for an engine includes an engine main body having a cylinder head provided with a manifold exhaust passage formed with a gathering exhaust port, a turbo supercharger, a catalyst device provided adjacent to the turbo supercharger, and a processing device disposed on the same side as the cylinder head surface of the engine main body. The processing device includes an exhaust gas processing device and an EGR device. The turbo supercharger guides exhaust gas discharged from the gathering exhaust port upward. The catalyst device includes a carrier, and a container which allows the exhaust gas to pass through a lower region of the carrier. The EGR device and the exhaust gas processing device are at least disposed below the catalyst device.Type: GrantFiled: February 24, 2015Date of Patent: August 14, 2018Assignee: MAZDA MOTOR CORPORATIONInventors: Amane Tsuda, Hiroaki Deguchi, Yasushi Niwa, Noriyuki Maruoka, Kazuya Niida, Kentaro Nomura
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Publication number: 20170138291Abstract: An abnormality detector of a turbocharged engine includes: a compressor including a plurality of blades that are detected portions; and a detecting portion configured to electrically detect the plurality of blades. Each time the blades are detected a predetermined number of times, one pulse having a pulse width corresponding to a measurement time required to detect the blades is output, and a turbo revolution is calculated from the pulse width of the output pulse. When it is judged that a rotation change of the rotating body which change is calculated based on a pulse width of a first pulse and a pulse width of a second pulse output after the first pulse exceeds a predetermined rate in a region where the rotating body exceeds a predetermined revolution, it is determined that an abnormality of the blade or an electromagnetic noise abnormality of the detecting portion occurs.Type: ApplicationFiled: February 18, 2015Publication date: May 18, 2017Applicant: Mazda Motor CorporationInventors: Amane Tsuda, Hiroaki Deguchi, Kenjiro Konomi, Nobuo Yunoki, Yasushi Niwa, Kazuya Niida
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Publication number: 20170067394Abstract: Disclosed is a controller for a turbocharged engine. The engine includes a supercharger configured to supercharge intake air using an exhaust gas from the engine, and including movable flaps arranged so that a boost pressure generated in an intake passage is adjustable. If a rotational speed of a turbine and compressor that constitute the supercharger has reached a first threshold lower than an endurance limit, an amount of fuel injected to the engine is reduced to a predetermined amount. If the rotational speed has reached a second threshold lower than the first threshold, the amount of fuel injected is reduced in accordance with an excess of the rotational speed over the second threshold.Type: ApplicationFiled: January 19, 2015Publication date: March 9, 2017Applicant: MAZDA MOTOR CORPORATIONInventors: Amane TSUDA, Hiroaki DEGUCHI, Kenjiro KONOMI, Nobuo YUNOKI, Yasushi NIWA, Kazuya NIIDA
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Publication number: 20150240750Abstract: An exhaust device for an engine includes an engine main body having a cylinder head provided with a manifold exhaust passage formed with a gathering exhaust port, a turbo supercharger, a catalyst device provided adjacent to the turbo supercharger, and a processing device disposed on the same side as the cylinder head surface of the engine main body. The processing device includes an exhaust gas processing device and an EGR device. The turbo supercharger guides exhaust gas discharged from the gathering exhaust port upward. The catalyst device includes a carrier, and a container which allows the exhaust gas to pass through a lower region of the carrier. The EGR device and the exhaust gas processing device are at least disposed below the catalyst device.Type: ApplicationFiled: February 24, 2015Publication date: August 27, 2015Applicant: MAZDA MOTOR CORPORATIONInventors: Amane TSUDA, Hiroaki DEGUCHI, Yasushi NIWA, Noriyuki MARUOKA, Kazuya NIIDA, Kentaro NOMURA