Patents by Inventor Takehiko WATASE

Takehiko WATASE 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).

  • Liquid fuel injector
    Patent number: 11873761
    Abstract: A liquid fuel injector includes a cylindrical primary fuel injecting body having a central axis; an annular shroud concentrically placed radially outside; and an annular secondary fuel injecting body placed concentrically with the primary fuel injecting body and the shroud between the primary fuel injecting body and the shroud. A plurality of inner swirlers placed at equal intervals in a circumferential direction are provided in an annular inner air passage formed between the primary fuel injecting body and the secondary fuel injecting body, and a plurality of outer swirlers placed at equal intervals in the circumferential direction are provided in an annular outer air passage formed between the secondary fuel injecting body and the shroud. The primary fuel injecting body is formed as a pressure spray-type injector, and the secondary fuel injecting body and the inner and outer air passages cooperatively constitute an airblast-type injector.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: January 16, 2024
    Assignee: IHI CORPORATION
    Inventors: Takehiko Watase, Kouta Kanai, Nagayoshi Hiromitsu, Junya Kowa, Shinichiro Ishizaki, Katsuyoshi Takahashi, Tomohiro Ide, Shonosuke Kita, Mitsunori Itoh, Yuki Iwaki, Narumi Ando, Hitoshi Hattori, Kazuo Yonekura
  • LIQUID FUEL INJECTOR
    Publication number: 20220120222
    Abstract: A liquid fuel injector includes a cylindrical primary fuel injecting body having a central axis; an annular shroud concentrically placed radially outside; and an annular secondary fuel injecting body placed concentrically with the primary fuel injecting body and the shroud between the primary fuel injecting body and the shroud. A plurality of inner swirlers placed at equal intervals in a circumferential direction are provided in an annular inner air passage formed between the primary fuel injecting body and the secondary fuel injecting body, and a plurality of outer swirlers placed at equal intervals in the circumferential direction are provided in an annular outer air passage formed between the secondary fuel injecting body and the shroud. The primary fuel injecting body is formed as a pressure spray-type injector, and the secondary fuel injecting body and the inner and outer air passages cooperatively constitute an airblast-type injector.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Applicant: IHI CORPORATION
    Inventors: Takehiko WATASE, Kouta KANAI, Nagayoshi HIROMITSU, Junya KOWA, Shinichiro ISHIZAKI, Katsuyoshi TAKAHASHI, Tomohiro IDE, Shonosuke KITA, Mitsunori ITOH, Yuki IWAKI, Narumi ANDO, Hitoshi HATTORI, Kazuo YONEKURA