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).

  • Patent number: 10746080
    Abstract: 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: Grant
    Filed: July 27, 2017
    Date of Patent: August 18, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takeshi Nakahira, Yuji Kojima, Amane Tsuda
  • Publication number: 20200095923
    Abstract: 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: Application
    Filed: July 27, 2017
    Publication date: March 26, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hirokazu HASEGAWA, Keishi KITABATAKE, Taku KURAMASHI, Ryotaro NISHIDA, Mitsunori WASADA, Takeshi NAKAHIRA, Yuji KOJIMA, Amane TSUDA
  • Publication number: 20200025158
    Abstract: 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: Application
    Filed: July 27, 2017
    Publication date: January 23, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takeshi NAKAHIRA, Yuji KOJIMA, Amane TSUDA
  • Publication number: 20200003104
    Abstract: 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: Application
    Filed: July 27, 2017
    Publication date: January 2, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Keishi KITABATAKE, Taku KURAMASHI, Tamotsu TAKAMURE, Takeshi NAKAHIRA, Yuji KOJIMA, Amane TSUDA
  • Patent number: 10145297
    Abstract: 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: Grant
    Filed: January 19, 2015
    Date of Patent: December 4, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Amane Tsuda, Hiroaki Deguchi, Kenjiro Konomi, Nobuo Yunoki, Yasushi Niwa, Kazuya Niida
  • Patent number: 10087868
    Abstract: 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: Grant
    Filed: February 18, 2015
    Date of Patent: October 2, 2018
    Assignee: Mazda Motor Corporation
    Inventors: Amane Tsuda, Hiroaki Deguchi, Kenjiro Konomi, Nobuo Yunoki, Yasushi Niwa, Kazuya Niida
  • Patent number: 10047674
    Abstract: 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: Grant
    Filed: February 24, 2015
    Date of Patent: August 14, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Amane Tsuda, Hiroaki Deguchi, Yasushi Niwa, Noriyuki Maruoka, Kazuya Niida, Kentaro Nomura
  • Publication number: 20170138291
    Abstract: 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: Application
    Filed: February 18, 2015
    Publication date: May 18, 2017
    Applicant: Mazda Motor Corporation
    Inventors: Amane Tsuda, Hiroaki Deguchi, Kenjiro Konomi, Nobuo Yunoki, Yasushi Niwa, Kazuya Niida
  • Publication number: 20170067394
    Abstract: 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: Application
    Filed: January 19, 2015
    Publication date: March 9, 2017
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Amane TSUDA, Hiroaki DEGUCHI, Kenjiro KONOMI, Nobuo YUNOKI, Yasushi NIWA, Kazuya NIIDA
  • Publication number: 20150240750
    Abstract: 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: Application
    Filed: February 24, 2015
    Publication date: August 27, 2015
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Amane TSUDA, Hiroaki DEGUCHI, Yasushi NIWA, Noriyuki MARUOKA, Kazuya NIIDA, Kentaro NOMURA