Patents by Inventor Kenji YASAKA

Kenji YASAKA 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).

  • Control method and control device for internal combustion engine
    Patent number: 11274616
    Abstract: A negative pressure control valve (44) is disposed in a part of an intake passage (12) upstream of a confluence (30) of an EGR passage (27) and the intake passage (12). When in an EGR region (Regr) where an EGR gas is recirculated to the intake passage (12) through the EGR passage (27), the negative pressure control valve (44) is controlled in a manner to ensure a differential pressure between an exhaust passage (13) and the intake passage (12). When in an operation region (R2) lower in load than the EGR region (Regr), the negative pressure control valve (44) is controlled in a closing direction so as to suppress occurrence of noise.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 15, 2022
    Assignees: NISSAN MOTOR CO., LTD., RENAULT S.A.S.
    Inventors: Takayuki Hamamoto, Daisuke Suzuki, Kengo Yonekura, Kenji Yasaka
  • CONTROL METHOD AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20190195152
    Abstract: A negative pressure control valve (44) is disposed in a part of an intake passage (12) upstream of a confluence (30) of an EGR passage (27) and the intake passage (12). When in an EGR region (Regr) where an EGR gas is recirculated to the intake passage (12) through the EGR passage (27), the negative pressure control valve (44) is controlled in a manner to ensure a differential pressure between an exhaust passage (13) and the intake passage (12). When in an operation region (R2) lower in load than the EGR region (Regr), the negative pressure control valve (44) is controlled in a closing direction so as to suppress occurrence of noise.
    Type: Application
    Filed: September 9, 2016
    Publication date: June 27, 2019
    Applicants: NISSAN MOTOR CO., LTD., RENAULT S. A. S.
    Inventors: Takayuki HAMAMOTO, Daisuke SUZUKI, Kengo YONEKURA, Kenji YASAKA