Patents by Inventor Naotoshi NIO

Naotoshi NIO 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).

  • Engine decompression device and engine
    Patent number: 11384725
    Abstract: A decompression shaft (56) of a decompression device (50) includes an engagement pin (53) that is guided by a guide groove (51a) formed in a decompression weight (51), a decompression cam (54) that is provided on one cam surface of an intake valve cam (25c) and an exhaust valve cam (25b) so as to advance and retreat, and a connection portion (55) that connects the engagement pin (53) and the decompression cam (54). The decompression weight (51) is formed with a rotation restricting groove (51e) that restricts rotation of the decompression shaft (56) when a force acts in a direction in which the decompression cam (54) moves on the decompression shaft (56) from an advanced position to a retracted position when an engine (E) is stopped and that is continuous with the guide groove (51a).
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 12, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Naotoshi Nio, Kota Tokubi, Kentaro Sugimura
  • ENGINE DECOMPRESSION DEVICE AND ENGINE
    Publication number: 20210262370
    Abstract: A decompression shaft (56) of a decompression device (50) includes an engagement pin (53) that is guided by a guide groove (51a) formed in a decompression weight (51), a decompression cam (54) that is provided on one cam surface of an intake valve cam (25c) and an exhaust valve cam (25b) so as to advance and retreat, and a connection portion (55) that connects the engagement pin (53) and the decompression cam (54). The decompression weight (51) is formed with a rotation restricting groove (51e) that restricts rotation of the decompression shaft (56) when a force acts in a direction in which the decompression cam (54) moves on the decompression shaft (56) from an advanced position to a retracted position when an engine (E) is stopped and that is continuous with the guide groove (51a).
    Type: Application
    Filed: July 5, 2018
    Publication date: August 26, 2021
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Naotoshi NIO, Kota TOKUBI, Kentaro SUGIMURA