Patents by Inventor Masuaki Iwamoto

Masuaki Iwamoto 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 device of internal combustion engine
    Patent number: 7128282
    Abstract: Multiple injection holes are formed in an injection hole plate. Each injection hole penetrates the injection hole plate. The injection hole is formed with an inlet side opening and an outlet side opening. The outlet side opening is formed in the shape of a flattened rectangle having a major axis and a minor axis. Therefore, the fuel flowing into the injection hole through the inlet side opening is injected in the shape of a film from the outlet side opening. Thus, liquid film splitting is promoted, so atomization of the fuel is promoted. Since the multiple injection holes are formed in the injection hole plate, the shape of a great fuel spray, which is formed by combining fuel sprays injected from the respective injection holes, can be adjusted easily.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: October 31, 2006
    Assignee: Denso Corporation
    Inventors: Atsuya Okamoto, Nobuo Ota, Kouichi Mochizuki, Masuaki Iwamoto
  • Fuel injection device of internal combustion engine
    Publication number: 20040178287
    Abstract: Multiple injection holes are formed in an injection hole plate. Each injection hole penetrates the injection hole plate. The injection hole is formed with an inlet side opening and an outlet side opening. The outlet side opening is formed in the shape of a flattened rectangle having a major axis and a minor axis. Therefore, the fuel flowing into the injection hole through the inlet side opening is injected in the shape of a film from the outlet side opening. Thus, liquid film splitting is promoted, so atomization of the fuel is promoted. Since the multiple injection holes are formed in the injection hole plate, the shape of a great fuel spray, which is formed by combining fuel sprays injected from the respective injection holes, can be adjusted easily.
    Type: Application
    Filed: February 5, 2004
    Publication date: September 16, 2004
    Applicant: DENSO CORPORATION
    Inventors: Atsuya Okamoto, Nobuo Ota, Kouichi Mochizuki, Masuaki Iwamoto