Patents by Inventor Akinori Muraoka

Akinori Muraoka 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).

  • Divided combustion chamber for diesel engine
    Patent number: 5746173
    Abstract: In a divided combustion chamber for diesel engine, a main combustion chamber (2) communicates with a sub-chamber (5) through a communication hole (6), the communication hole (6) being composed of a main communication hole (7) and sub communication holes (8), a pair of sub communication holes (8),(8) being provided in the shape of grooves in opposite right and left peripheral surface portions of the main communication hole (7). Provided at boundaries between a peripheral surface of the main communication hole (7) and peripheral surfaces of the sub communications holes (8),(8) are auxiliary communication grooves (9),(9) smaller than the sub communication holes (8),(8) in width.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: May 5, 1998
    Assignee: Kubota Corporation
    Inventors: Osamu Takii, Shuichi Yamada, Akinori Muraoka, Kiyoshi Hataura, Atsushi Yamaguchi, Hideo Hasegawa, Manabu Miyazaki, Hideya Miyazaki