Patents by Inventor Akihiko TSUNEMI

Akihiko TSUNEMI 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).

  • Scramjet engine and flying object
    Patent number: 11692514
    Abstract: A scramjet engine includes first and second flow path forming members and first and second fuel injection devices. A flow path formed between the first and second flow path forming members includes a turbulence forming region where compressed air is introduced and a combustion region located downstream thereof. The second flow path forming member is formed with a protrusion in the turbulence formation region. The first fuel injection device is configured to inject fuel into the compressed air via a first fuel nozzle. The second flow path forming member is formed with a cavity located in the combustion region. The second fuel injection device is configured to inject fuel into the compressed air via a second fuel nozzle. The cavity is provided with an inclined surface connected to a bottom surface. An inclination of the inclined surface is adjusted so that a shock wave is generated in the combustion region.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 4, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masaharu Nakamura, Akihiko Tsunemi, Takuto Haniu
  • SCRAMJET ENGINE AND FLYING OBJECT
    Publication number: 20200362795
    Abstract: A scramjet engine includes first and second flow path forming members and first and second fuel injection devices. A flow path formed between the first and second flow path forming members includes a turbulence forming region where compressed air is introduced and a combustion region located downstream thereof. The second flow path forming member is formed with a protrusion in the turbulence formation region. The first fuel injection device is configured to inject fuel into the compressed air via a first fuel nozzle. The second flow path forming member is formed with a cavity located in the combustion region. The second fuel injection device is configured to inject fuel into the compressed air via a second fuel nozzle. The cavity is provided with an inclined surface connected to a bottom surface. An inclination of the inclined surface is adjusted so that a shock wave is generated in the combustion region.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 19, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masaharu NAKAMURA, Akihiko TSUNEMI, Takuto HANIU