Patents by Inventor Shuuichi Shimizu

Shuuichi Shimizu 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 valve and direct-injection engine with the same
    Patent number: 7082921
    Abstract: A fuel injection valve with high freedom to optimize the direction of fuel spray, the shape of spray, the length of penetration, the existence/absence of lead spray and the like, in correspondence with each type of internal combustion engine is provided. A swirling force about a central axis of an injection orifice is supplied by a swirler to fuel injected from the injection orifice. A central axis E of the injection orifice is slanted at a predetermined deflection angle to a central axis of a valve body. Further, a step portion is formed in an end surface of the injection orifice.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: August 1, 2006
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Shuuichi Shimizu, Takuya Shiraishi, Motoyuki Abe, Masahiko Hayatani, Kouji Shibata
  • Fuel injection valve and direct-injection engine with the same
    Publication number: 20040262431
    Abstract: A fuel injection valve with high freedom to optimize the direction of fuel spray, the shape of spray, the length of penetration, the existence/absence of lead spray and the like, in correspondence with each type of internal combustion engine is provided. A swirling force about a central axis of an injection orifice is supplied by a swirler to fuel injected from the injection orifice. A central axis E of the injection orifice is slanted at a predetermined deflection angle to a central axis of a valve body. Further, a step portion is formed in an end surface of the injection orifice.
    Type: Application
    Filed: April 30, 2004
    Publication date: December 30, 2004
    Inventors: Shuuichi Shimizu, Takuya Shiraishi, Motoyuki Abe, Masahiko Hayatani, Kouji Shibata
  • Fuel injection valve and cylinder injection type internal combustion engine installing the same
    Publication number: 20040046064
    Abstract: A fuel injection valve to give the turn power around the center axis line of injection hole 17 to the fuel injected from the injection hole 17 by swirler 23. Center axis line E of injection hole 17 is inclined with respect to the center axis line C of said valve element by the fixed deflection angle &bgr;, and step difference 25 is formed on the pointed end of injection hole 17.
    Type: Application
    Filed: September 9, 2003
    Publication date: March 11, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Takuya Shiraishi, Motoyuki Abe, Shuuichi Shimizu, Masahiko Hayatani