Patents by Inventor Sumito Abe

Sumito Abe 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).

  • Burning control system for engine
    Patent number: 5365908
    Abstract: An internal combustion engine and method for operating the engine wherein a leaner than stoichiometric air/fuel ratio is maintained under all running conditions. The desired torque curve is obtained by increasing the amount of boost generated to the intake air charge without enrichening the air/fuel mixture. In addition, an anti-knocking system is incorporated that avoids knocking by retarding the spark advance and, at the same time, providing a leaning in the air/fuel mixture.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: November 22, 1994
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Osamu Takii, Motoshi Baba, Takao Mori, Sumito Abe