Patents by Inventor Takehisa Koroki

Takehisa Koroki 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).

  • Engine fuel reforming system
    Patent number: 11492943
    Abstract: A fuel reforming system includes a fuel injection device capable of injecting fuel into an EGR passage, a reforming catalyst provided in the EGR passage, an oxidation catalyst provided in the vicinity of the reforming catalyst in the EGR, and an air supply device that supplies air to the EGR passage. When clogging occurs in the reforming catalyst and a temperature of the reforming catalyst is less than a first temperature, air is supplied to the EGR passage by the air supply device, and fuel is injected by the fuel injection device. When clogging occurs in the reforming catalyst and the temperature of the reforming catalyst is greater than or equal to the first temperature, air is supplied to the EGR passage by the air supply device, and fuel injection of the fuel injection device is stopped.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: November 8, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Yoshihisa Nakamoto, Takehisa Koroki
  • ENGINE FUEL REFORMING SYSTEM
    Publication number: 20220074334
    Abstract: A fuel reforming system includes a fuel injection device capable of injecting fuel into an EGR passage, a reforming catalyst provided in the EGR passage, an oxidation catalyst provided in the vicinity of the reforming catalyst in the EGR, and an air supply device that supplies air to the EGR passage. When clogging occurs in the reforming catalyst and a temperature of the reforming catalyst is less than a first temperature, air is supplied to the EGR passage by the air supply device, and fuel is injected by the fuel injection device. When clogging occurs in the reforming catalyst and the temperature of the reforming catalyst is greater than or equal to the first temperature, air is supplied to the EGR passage by the air supply device, and fuel injection of the fuel injection device is stopped.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 10, 2022
    Inventors: Yoshihisa Nakamoto, Takehisa Koroki