Patents by Inventor Katsunori Morimune

Katsunori Morimune 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).

  • Suction apparatus for engine
    Patent number: 5107800
    Abstract: This invention relates to an engine suction apparatus in which a tuning frequency of pressure-vibration characteristics of a suction path on the upstream side of a throttle body coincides with a frequency of a pressure vibration applied from a suction port to the suction path at an idling engine speed. The suction apparatus includes an idling path, branching from the suction path on the upstream side of the throttle body, for supplying intake air in an idling state, and a resonance silencer which resonates at the tuning frequency to reduce noise is connected to the idling path.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: April 28, 1992
    Assignee: Mazda Motor Corporation
    Inventors: Makoto Araki, Tetsuji Yahiro, Katsunori Morimune