Patents by Inventor Tohru Hokazono

Tohru Hokazono 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).

  • Patent number: 10830186
    Abstract: A premixed compression ignition engine system includes an engine, a fuel injector, a water injector, and a controller. The controller conducts: a compression-stroke mid-period injection that causes a fuel injector to inject fuel to form a fuel-air mixture in a surrounding space of a combustion chamber; a compression top-dead-center injection that causes the fuel injector to inject fuel to form a fuel-air mixture in the central space of the combustion chamber after the compression-stroke mid-period injection; and a water injection that causes a water injector to inject water to the surrounding space of the combustion chamber at a timing from commencement of the compression-stroke mid-period injection to commencement of the compression top-dead-center injection.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: November 10, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Tohru Hokazono, Kota Maekawa, Yoshihisa Nakamoto, Masaharu Marumoto, Yusuke Koike, Ryohei Ono
  • Publication number: 20200040850
    Abstract: A premixed compression ignition engine system includes an engine, a fuel injector, a water injector, and a controller. The controller conducts: a compression-stroke mid-period injection that causes a fuel injector to inject fuel to form a fuel-air mixture in a surrounding space of a combustion chamber; a compression top-dead-center injection that causes the fuel injector to inject fuel to form a fuel-air mixture in the central space of the combustion chamber after the compression-stroke mid-period injection; and a water injection that causes a water injector to inject water to the surrounding space of the combustion chamber at a timing from commencement of the compression-stroke mid-period injection to commencement of the compression top-dead-center injection.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 6, 2020
    Inventors: Tohru Hokazono, Kota Maekawa, Yoshihisa Nakamoto, Masaharu Marumoto, Yusuke Koike, Ryohei Ono