Patents by Inventor Kimio Uehara

Kimio Uehara 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).

  • Fuel injection pump device and method for settling the same
    Patent number: 4754737
    Abstract: A fuel injection pump device comprising a plunger (8) facing a pressurizing chamber (20) and actuated by a cam (12), a control sleeve (14) mounted on the plunger (8) in a fuel chamber (15) , an inclined groove (8d) and longitudinal groove (8c) provided on one of the plunger (8) or the control sleeve (14) for controlling the communication of the pressurizing chamber (20) and the fuel chamber (15) by way of an oil passage (8a) formed in the plunger (8), and control ports (14a) provided on the other of the plunger (8) or the control sleeve (14), which cooperates with both of the grooves (8c) and (8d). The effective stroke of the plunger (8) can be controlled by turning the plunger (8) around its axis to change the relative position of the inclined groove (8d) and longitudinal groove (8c) and the control ports ( 14a), and the prestroke thereof, this is a fuel injection timing, can be easily controlled only by moving the control sleeve (14) in the direction of the plunger axis.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: July 5, 1988
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Akio Ishida, Hiroshi Oikawa, Kazuo Itoh, Kimio Uehara