Patents by Inventor Shota TANIMOTO

Shota TANIMOTO 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).

  • Screw compressor having a screw rotor whose pitch changes in an axial direction from a suction end surface toward a discharge end surface
    Patent number: 11933300
    Abstract: This screw compressor is provided with a screw rotor, a casing accommodating the screw rotor, and a liquid feed mechanism for feeding a liquid into an operating chamber enclosed by the casing, wherein the pitch of the screw rotor changes in the axial direction from a suction end surface toward a discharge end surface.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 19, 2024
    Assignee: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    Inventors: Shota Tanimoto, Shigeyuki Yorikane, Tomohiro Komatsu, Takeshi Tsuchiya, Kotaro Chiba
  • Screw Compressor and Screw Rotor
    Publication number: 20230392598
    Abstract: In a screw compressor, a lobe profile of cross-sections perpendicular to the axial direction in a female rotor that rotates about a second rotation center changes in the axial direction. One lobe of the lobe profile of the female rotor includes: a first contour line defining a leading flank on a rotation direction side of the female rotor with a lobe bottom as a boundary point; a second contour line defining a trailing flank on an opposite side of the rotation direction; and a third contour line defining a lobe tip having both endpoints at which the female has the maximum radius.
    Type: Application
    Filed: October 18, 2021
    Publication date: December 7, 2023
    Inventors: Takeshi TSUCHIYA, Kotaro CHIBA, Tomohiro KOMATSU, Shota TANIMOTO, Toshiaki YABE, Shigeyuki YORIKANE
  • SCREW COMPRESSOR
    Publication number: 20220341423
    Abstract: This screw compressor is provided with a screw rotor, a casing accommodating the screw rotor, and a liquid feed mechanism for feeding a liquid into an operating chamber enclosed by the casing, wherein the pitch of the screw rotor changes in the axial direction from a suction end surface toward a discharge end surface.
    Type: Application
    Filed: September 10, 2020
    Publication date: October 27, 2022
    Inventors: Shota TANIMOTO, Shigeyuki YORIKANE, Tomohiro KOMATSU, Takeshi TSUCHIYA, Kotaro CHIBA