Patents by Inventor Souichi Matusita

Souichi Matusita 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).

  • Direct cylinder injection-type spark ignition internal combustion engine
    Patent number: 6840210
    Abstract: A direct cylinder injection-type spark ignition internal combustion engine is disclosed. The engine comprises a spark plug, a cavity formed in the top surface of a piston, and a fuel injection valve for injecting fuel into the cavity in nearly the shape of a fan having a relatively small thickness. When the fuel injected in nearly the shape of a fan from the fuel injection valve is considered by being divided into a plurality of fuel segments in a radial direction, a side wall of the cavity has a first fuel deflection passage 82a and a second fuel deflection passage 82b for so deflecting at least two of the plurality of fuel segments as to pass near the spark plug. The side wall of the cavity is at least partly provided with a return portion 83 that protrudes toward the inside of the cavity.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: January 11, 2005
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto, Toshimi Kashiwagura, Matsumi Kanda, Hiroya Tanaka, Souichi Matusita, Shizuo Abe, Nobuyuki Muramatsu
  • Direct cylinder injection-type spark ignition internal combustion engine
    Publication number: 20040007202
    Abstract: A direct cylinder injection-type spark ignition internal combustion engine is disclosed. The engine comprises a spark plug, a cavity formed in the top surface of a piston, and a fuel injection valve for injecting fuel into the cavity in nearly the shape of a fan having a relatively small thickness. When the fuel injected in nearly the shape of a fan from the fuel injection valve is considered by being divided into a plurality of fuel segments in a radial direction, a side wall of the cavity has a first fuel deflection passage 82a and a second fuel deflection passage 82b for so deflecting at least two of the plurality of fuel segments as to pass near the spark plug. The side wall of the cavity is at least partly provided with a return portion 83 that protrudes toward the inside of the cavity.
    Type: Application
    Filed: July 10, 2003
    Publication date: January 15, 2004
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto, Toshimi Kashiwagura, Mutsumi Kanda, Hiroya Tanaka, Souichi Matusita, Shizuo Abe, Nobuyuki Muramatsu
  • Direct cylinder injection-type spark ignition internal combustion engine
    Patent number: 6629518
    Abstract: A direct cylinder injection-type spark ignition internal combustion engine is disclosed. The engine comprises a spark plug, a cavity formed in the top surface of a piston, and a fuel injection valve for injecting fuel into the cavity in nearly the shape of a fan having a relatively small thickness. When the fuel injected in nearly the shape of a fan from the fuel injection valve is considered by being divided into a plurality of fuel segments in a radial direction, a side wall of the cavity has a first fuel deflection passage 82a and a second fuel deflection passage 82b for so deflecting at least two of the plurality of fuel segments as to pass near the spark plug. The side wall of the cavity is at least partly provided with a return portion 83 that protrudes toward the inside of the cavity.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: October 7, 2003
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto, Toshimi Kawashiwagura, Mutsumi Kanda, Hiroya Tanaka, Souichi Matusita, Shizuo Abe, Nobuyuki Muramatsu
  • Direct-fuel-injection-type spark-ignition internal combustion engine
    Patent number: 6460509
    Abstract: A direct-fuel-injection-type spark-ignition internal combustion engine is disclosed. The engine comprises a spark plug, a cavity formed on the top surface of the piston, and a fuel injection valve for injecting fuel into the cavity in nearly the shape of a fan having a relative small thickness. In the engine, the side wall of the cavity facing the fuel injection valve, for leading the fuel to the vicinity of the spark plug, has a horizontal sectional shape consisting of a part of an ellipse shape of which two foci are at a position of the injection hole of the fuel injection valve and a position near to the spark plug in plan view, and the side wall has a deflecting portion to deflect the fuel toward the inside of the cavity.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: October 8, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobuyuki Muramatsu, Yasuhito Tsutsumi, Tatsuo Kobayashi, Toyokazu Baika, Souichi Matusita, Shizuo Abe, Takashi Hashima, Koukichi Fujimori
  • Direct cylinder injection-type spark ignition internal combustion engine
    Publication number: 20020029758
    Abstract: A direct cylinder injection-type spark ignition internal combustion engine is disclosed. The engine comprises a spark plug, a cavity formed in the top surface of a piston, and a fuel injection valve for injecting fuel into the cavity in nearly the shape of a fan having a relatively small thickness. When the fuel injected in nearly the shape of a fan from the fuel injection valve is considered by being divided into a plurality of fuel segments in a radial direction, a side wall of the cavity has a first fuel deflection passage 82a and a second fuel deflection passage 82b for so deflecting at least two of the plurality of fuel segments as to pass near the spark plug. The side wall of the cavity is at least partly provided with a return portion 83 that protrudes toward the inside of the cavity.
    Type: Application
    Filed: October 11, 2001
    Publication date: March 14, 2002
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto, Toshimi Kashiwagura, Mutsumi Kanda, Hiroya Tanaka, Souichi Matusita, Shizuo Abe, Nobuyuki Muramatsu
  • Direct cylinder injection-type spark ignition internal combustion engine
    Patent number: 6336437
    Abstract: A direct cylinder injection-type spark ignition internal combustion engine is disclosed. The engine comprises a spark plug, a cavity formed in the top surface of a piston, and a fuel injection valve for injecting fuel into the cavity in nearly the shape of a fan having a relatively small thickness. When the fuel injected in nearly the shape of a fan from the fuel injection valve is considered by being divided into a plurality of fuel segments in a radial direction, a side wall of the cavity has a first fuel deflection passage 82a and a second fuel deflection passage 82b for so deflecting at least two of the plurality of fuel segments as to pass near the spark plug. The side wall of the cavity is at least partly provided with a return portion 83 that protrudes toward the inside of the cavity.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: January 8, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto, Toshimi Kashiwagura, Mutsumi Kanda, Hiroya Tanaka, Souichi Matusita, Shizuo Abe, Nobuyuki Muramatsu