Patents by Inventor Yusuke OHMORI

Yusuke OHMORI 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).

  • Vane pump with tip-end-side guide surfaces provided between inner and outer notches of the discharge port and base-end-side guide surface provided in the back pressure port
    Patent number: 11644031
    Abstract: A vane pump includes: a rotor; vanes freely slidably received in the rotor; a cam ring having a cam face with which the vanes come into sliding contact; a side member having a sliding contact surface with which side surfaces of the rotor and the vanes come into sliding contact; pump chambers; and a discharge port configured to guide working fluid discharged from the pump chambers. The side member has a guide surface that is provided on an end portion side of the opening portion, the guide surface being configured to push the end portions of the vanes upward and guide them toward the sliding contact surface of the side member as the rotor is rotated in the reverse rotation direction.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: May 9, 2023
    Assignee: KYB CORPORATION
    Inventors: Yusuke Ohmori, Tomoyuki Nakagawa, Masamichi Sugihara, Atsumi Takahashi, Satoshi Watanabe
  • VANE PUMP
    Publication number: 20220010795
    Abstract: A vane pump includes: a rotor; vanes freely slidably received in the rotor; a cam ring having a cam face with which the vanes come into sliding contact; a side member having a sliding contact surface with which side surfaces of the rotor and the vanes come into sliding contact; pump chambers; and a discharge port configured to guide working fluid discharged from the pump chambers. The side member has a guide surface that is provided on an end portion side of the opening portion, the guide surface being configured to push the end portions of the vanes upward and guide them toward the sliding contact surface of the side member as the rotor is rotated in the reverse rotation direction.
    Type: Application
    Filed: October 29, 2019
    Publication date: January 13, 2022
    Applicant: KYB Corporation
    Inventors: Yusuke OHMORI, Tomoyuki NAKAGAWA, Masamichi SUGIHARA, Atsumi TAKAHASHI, Satoshi WATANABE