Patents by Inventor Naoya Ashita

Naoya Ashita 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).

  • Valve operating system for multicylinder engine
    Patent number: 10626822
    Abstract: A valve operating system for a multicylinder engine opens and closes a pair of valves provided on each of cylinders by means of a pair of rocker arms operated by a cam provided on a camshaft supported on a cam holder. When viewed in a direction of a cylinder axis, the pair of rocker arms of at least one of the cylinders are inclined in opposite directions to each other with respect to a direction orthogonal to a camshaft axis. Therefore, thrust loads acting on the camshaft from the pair of rocker arms are counteracted individually for each of the cylinders, thereby enabling the thrust load to be reduced and axial movement of the camshaft to be prevented.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 21, 2020
    Assignee: HONDA MOTORS CO., LTD.
    Inventors: Takeya Harada, Kiyohiko Masago, Masaru Kawano, Naoya Ashita, Kei Ueda, Koji Katsumata, Koichi Ogino, Hitoshi Ouchi
  • VALVE OPERATING SYSTEM FOR MULTICYLINDER ENGINE
    Publication number: 20180274478
    Abstract: A valve operating system for a multicylinder engine opens and closes a pair of valves provided on each of cylinders by means of a pair of rocker arms operated by a cam provided on a camshaft supported on a cam holder. When viewed in a direction of a cylinder axis, the pair of rocker aims of at least one of the cylinders are inclined in opposite directions to each other with respect to a direction orthogonal to a camshaft axis. Therefore, thrust loads acting on the camshaft from the pair of rocker al is are counteracted individually for each of the cylinders, thereby enabling the thrust load to be reduced and axial movement of the camshaft to be prevented.
    Type: Application
    Filed: February 14, 2018
    Publication date: September 27, 2018
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takeya Harada, Kiyohiko Masago, Masaru Kawano, Naoya Ashita, Kei Ueda, Koji Katsumata, Koichi Ogino, Hitoshi Ouchi