Patents by Inventor Katsuhiko Fukuzumi

Katsuhiko Fukuzumi 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).

  • Turbocharging pressure controlling apparatus
    Patent number: 4918924
    Abstract: A turbocharging pressure controlling apparatus employing a diaphragm-type single acting air actuator includes a rod 33 to which is connected a control valve 13 for regulating the opening of a flow dividing hole 15 provided in an exhaust pipe 16 and which enlarges the degree of opening by a retracting motion, thereby reducing exhaust gas pressure for rotating a turbocharger that produces a turbocharging pressure and thus reducing the generation of turbocharging pressure. Through this arrangement the effect of operating directions of the rod upon the mounting position for the apparatus can be minimized. Therefore, the apparatus is not limited by the mounting position, as there is no effect thereon by the motion of the rod.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: April 24, 1990
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Michio Kyoya, Katsuhiko Fukuzumi