Patents by Inventor Shoichi Kido

Shoichi Kido 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 control method using variable nozzle hole fuel injection nozzle
    Patent number: 6055957
    Abstract: A method for carrying out fuel injection using a variable nozzle hole type fuel injection nozzle and a jerk type fuel injection pump. The variable nozzle hole type fuel injection nozzle has in its tip a well formed by an enclosing wall in which are provided a number of nozzle holes (35). A rotary valve (7) rotatable by an actuator (9) is disposed in the well and has fuel passages (73) so provided in the same number as the nozzle holes (35) that the fuel passages (73) can be connected with the nozzle holes (35) to a degree which varies with the angle of the rotary valve (7). A non-injection period in the rotation of the jerk type fuel injection pump B is detected using an encoder pulse and when the jerk type fuel injection pump B is rotating at high speed the angle of the rotary valve (7) is changed in steps until the rotary valve (7) reaches a target angle (.theta.D) corresponding to a required nozzle hole area by the actuator (9) being driven a required number of times only in the non-injection period.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: May 2, 2000
    Assignee: Zexel Corporation
    Inventors: Toshiyuki Hasegawa, Takao Iwasaki, Shoichi Kido