Patents by Inventor Kiichi SHIMAMURA

Kiichi SHIMAMURA 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: 11530638
    Abstract: A general-purpose engine is provided with an engine body having an exhaust system part connected to a cylinder, and also with a cooling mechanism for cooling the engine body. The cooling mechanism is provided with a cooling fan which rotates to generate a cooling air flow, a discharge section which discharges the cooling air flow generated by the rotation of the cooling fan and a cooling air flow opening which is disposed in the upper part of a partition for separating a cylinder chamber having the cylinder provided therein from a muffler chamber having a canister muffler provided therein, connects the cylinder head side of the cylinder chamber and the upper side of the muffler chamber, and causes a cooling air flow to flow from the cylinder head side of the cylinder chamber to the muffler chamber.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: December 20, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Oigawa, Kiichi Shimamura, Sho Kitano
  • Publication number: 20220195910
    Abstract: A general-purpose engine is provided with an engine body having an exhaust system part connected to a cylinder, and also with a cooling mechanism for cooling the engine body. The cooling mechanism is provided with a cooling fan which rotates to generate a cooling air flow, a discharge section which discharges the cooling air flow generated by the rotation of the cooling fan and a cooling air flow opening which is disposed in the upper part of a partition for separating a cylinder chamber having the cylinder provided therein from a muffler chamber having a canister muffler provided therein, connects the cylinder head side of the cylinder chamber and the upper side of the muffler chamber, and causes a cooling air flow to flow from the cylinder head side of the cylinder chamber to the muffler chamber.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 23, 2022
    Inventors: Yuji OIGAWA, Kiichi SHIMAMURA, Sho KITANO
  • Patent number: 11300035
    Abstract: A general-purpose engine is provided with an engine body having an exhaust system part connected to a cylinder, and also with a cooling mechanism for cooling the engine body. The cooling mechanism is provided with a cooling fan which rotates to generate a cooling air flow, a discharge section which discharges the cooling air flow generated by the rotation of the cooling fan, and a cooling air flow opening which is disposed in the upper part of a partition for separating a cylinder chamber having the cylinder provided therein from a muffler chamber having a canister muffler provided therein, connects the cylinder head side of the cylinder chamber and the upper side of the muffler chamber, and causes a cooling air flow to flow from the cylinder head side of the cylinder chamber to the muffler chamber.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 12, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Oigawa, Kiichi Shimamura, Sho Kitano
  • Patent number: 11280248
    Abstract: Provided is a general-purpose engine having a sufficient cooling function. A general-purpose engine 1 is provided with: an engine body 10 which has an exhaust system component 13 connected to a cylinder 11; and a cooling mechanism 9 which cools the engine body 10. The cooling mechanism 9 is provided with: a cooling fan 90 which rotates to generate a cooling air flow; a discharge section 92 which discharges the cooling air flow generated by the rotation of the cooling fan 90; and an air guide 93 which guides, toward the cylinder 11 and the exhaust system component 13, the cooling air flow discharged from the discharge section 92.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: March 22, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Sho Kitano, Yuji Oigawa, Kiichi Shimamura, Masanori Ishikawa, Shohma Higano
  • Publication number: 20210215089
    Abstract: A general-purpose engine is provided with an engine body having an exhaust system part connected to a cylinder, and also with a cooling mechanism for cooling the engine body. The cooling mechanism is provided with a cooling fan which rotates to generate a cooling air flow, a discharge section which discharges the cooling air flow generated by the rotation of the cooling fan, and a cooling air flow opening which is disposed in the upper part of a partition for separating a cylinder chamber having the cylinder provided therein from a muffler chamber having a canister muffler provided therein, connects the cylinder head side of the cylinder chamber and the upper side of the muffler chamber, and causes a cooling air flow to flow from the cylinder head side of the cylinder chamber to the muffler chamber.
    Type: Application
    Filed: August 30, 2018
    Publication date: July 15, 2021
    Inventors: Yuji OIGAWA, Kiichi SHIMAMURA, Sho KITANO
  • Publication number: 20210017896
    Abstract: Provided is a general-purpose engine having a sufficient cooling function. A general-purpose engine 1 is provided with: an engine body 10 which has an exhaust system component 13 connected to a cylinder 11; and a cooling mechanism 9 which cools the engine body 10. The cooling mechanism 9 is provided with: a cooling fan 90 which rotates to generate a cooling air flow; a discharge section 92 which discharges the cooling air flow generated by the rotation of the cooling fan 90; and an air guide 93 which guides, toward the cylinder 11 and the exhaust system component 13, the cooling air flow discharged from the discharge section 92.
    Type: Application
    Filed: March 30, 2018
    Publication date: January 21, 2021
    Inventors: Sho KITANO, Yuji OIGAWA, Kiichi SHIMAMURA, Masanori ISHIKAWA, Shohma HIGANO