Patents by Inventor Ryohei GONDA

Ryohei GONDA 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).

  • Exhaust device of engine
    Patent number: 10865686
    Abstract: A connection passage 63 is provided to connect an exhaust emission control catalyst and the particulate collection filter to each other, and partially has a small cross-sectional area portion 632 the flow passage cross-sectional area of which is smaller than an area of the transverse section of the particulate collection filter. The enlarged portion 633 having a flow passage cross-sectional area enlarged to be approximately as large as the area of the transverse section of the particulate collection filter is formed at the connection portion with the particulate collection filter in the connection passage 63, and the guide wall portion 634 is provided in the enlarged portion 633 to allow the exhaust gas having passed through the small cross-sectional area portion 632 to swirl along the peripheral wall of the enlarged portion 633.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: December 15, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Ryohei Gonda, Koichi Yashiro
  • EXHAUST DEVICE OF ENGINE
    Publication number: 20190390587
    Abstract: A connection passage 63 is provided to connect an exhaust emission control catalyst and the particulate collection filter to each other, and partially has a small cross-sectional area portion 632 the flow passage cross-sectional area of which is smaller than an area of the transverse section of the particulate collection filter. The enlarged portion 633 having a flow passage cross-sectional area enlarged to be approximately as large as the area of the transverse section of the particulate collection filter is formed at the connection portion with the particulate collection filter in the connection passage 63, and the guide wall portion 634 is provided in the enlarged portion 633 to allow the exhaust gas having passed through the small cross-sectional area portion 632 to swirl along the peripheral wall of the enlarged portion 633.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 26, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Ryohei GONDA, Koichi YASHIRO