Patents by Inventor Kensuke HIROI

Kensuke HIROI 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).

  • Abnormality diagnosis device for blow-by gas returning apparatus
    Patent number: 9932924
    Abstract: A blow-by gas returning (BGV) apparatus includes a blow-by gas storage unit, a throttle device placed in an intake passage, a BGV passage for allowing blow-by gas to flow to the intake passage downstream of the throttle device for recirculation, and a PCV valve for regulating a flow rate of blow-by gas. An abnormality diagnosis device includes an air flow meter to detect an intake amount in the intake passage upstream of the throttle device and an electronic control unit (ECU) for diagnosis. The ECU controls the PCV valve to a first opening degree and a second opening degree when an engine is during deceleration fuel cut, and diagnoses abnormality of the BGV apparatus based on a first intake amount detected under control with the first opening degree and a second intake amount detected under control with the second opening degree.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 3, 2018
    Assignee: AISAN KOBYO KABUSHIKI KAISHA
    Inventors: Mamoru Yoshioka, Shinji Kawai, Makoto Fukui, Kasumi Mishima, Hirokazu Tashita, Tsutomu Kuniyoshi, Kensuke Hiroi
  • ABNORMALITY DIAGNOSIS DEVICE FOR BLOW-BY GAS RETURNING APPARATUS
    Publication number: 20170175662
    Abstract: A blow-by gas returning (BGV) apparatus includes a blow-by gas storage unit, a throttle device placed in an intake passage, a BGV passage for allowing blow-by gas to flow to the intake passage downstream of the throttle device for recirculation, and a PCV valve for regulating a flow rate of blow-by gas. An abnormality diagnosis device includes an air flow meter to detect an intake amount in the intake passage upstream of the throttle device and an electronic control unit (ECU) for diagnosis. The ECU controls the PCV valve to a first opening degree and a second opening degree when an engine is during deceleration fuel cut, and diagnoses abnormality of the BGV apparatus based on a first intake amount detected under control with the first opening degree and a second intake amount detected under control with the second opening degree.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 22, 2017
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Mamoru YOSHIOKA, Shinji KAWAI, Makoto FUKUI, Kasumi MISHIMA, Hirokazu TASHITA, Tsutomu KUNIYOSHI, Kensuke HIROI