Patents by Inventor Masanori Fujinuma

Masanori Fujinuma 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).

  • Mixer for multicylinder gas engine
    Patent number: 6679232
    Abstract: A mixer for a multicylinder gas engine is provided in which a plurality of intake passages extend to a plurality of cylinders. A plurality of gaseous fuel nozzles, each having a nozzle orifice opening in a venturi part of the corresponding intake passage, are provided in a mixer main body. The plurality of gaseous fuel nozzles are connected to a gaseous fuel supply device, wherein a common surge tank housing the plurality of gaseous fuel nozzles and having a fuel intake pipe opening therein is provided on the mixer main body. The fuel intake pipe extends to the gaseous fuel supply device. Intake pressure pulsations that have passed through the gaseous fuel nozzles are attenuated within the surge tank, thereby achieving uniform distribution of a gaseous mixture to each cylinder, minimizes the number of parts, and prevents fluctuations in the fuel concentration of the gaseous mixture.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: January 20, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ryuhei Tamamoto, Shinji Yamanaka, Masanori Fujinuma
  • Mixer for multicylinder gas engine
    Publication number: 20030015180
    Abstract: A mixer for a multicylinder gas engine is provided in which a plurality of intake passages extend to a plurality of cylinders. A plurality of gaseous fuel nozzles, each having a nozzle orifice opening in a venturi part of the corresponding intake passage, are provided in a mixer main body. The plurality of gaseous fuel nozzles are connected to a gaseous fuel supply device, wherein a common surge tank housing the plurality of gaseous fuel nozzles and having a fuel intake pipe opening therein is provided on the mixer main body. The fuel intake pipe extends to the gaseous fuel supply device. Intake pressure pulsations that have passed through the gaseous fuel nozzles are attenuated within the surge tank, thereby achieving uniform distribution of a gaseous mixture to each cylinder, minimizes the number of parts, and prevents fluctuations in the fuel concentration of the gaseous mixture.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 23, 2003
    Inventors: Ryuhei Tamamoto, Shinji Yamanaka, Masanori Fujinuma